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ROTAN PUMP

1. The stuffing box is over tightened X X y N Fault in the motor wo Pipe too constricted or blocked A Wrong speed X al The pump runs without liquid X X O Liquid temp too high lack of lubricant X X N Speed too low AN 00 Speed too high 19 Suction line not dipped in liquid 20 Liquid being fed above liquid level 21 Valve incorrectly adjusted 22 The pump s shaft end is bent X 23 Coupling incorrectly aligned X X 24 Pump twisted in relation to pipe system X X 25 Leaking pipes assemblies X Figure 30 Various problems that can arise and possible causes of the problems Point 11 does not apply for pump type ED DESMI A S Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 Fax 45 98 17 54 99 E mail desmi desmi com Web www desmi com l ROTAN 55 THE DESMI GROUP DE S M Because of the ROTAN pump s large number of possible combinations and the many pump liquids used it is not possible to provide instructions on the rectification of the problems in this manual If the pump has been bought in Denmark we therefore refer to DESMI s service centres at the back of this manual If the pump was bought outside Denmark we refer to the relevant agent 19 Emptving and cleaning the pum If the liquid being pumped is inflam
2. eres eiie eene e eese en seen etta sten atta seta seta seta ao 26 10 6 Before connecting the pipes 4 eee eee eese eese ee seen neta aetas seen nes eee seen setas setas etas stes sees seen seta seta 27 10 6 1 External loads on pump flanges eese enne ener entree enne 27 10 6 2 Fl nsecouplns io eniro ERR RR eden 29 10 6 3 Threaded coupling enne nennen ener innen nre n nennen nnne 30 10 7 Safety Valve T H H N 30 10 8 Temperature Sensor conos 30 10 9 ISEdai Air m M ost 3l 10 10 Electrical coupling conns 31 10 11 Monitoring 31 HL Before starting ING DUMDP ici di teesin restes av sostines sassen sa aiaa 32 11 1 Before starting after preservation esses eese eene eese en seen aetas tone tn seta satus setae tisse es stesse ease seen tee 32 ENG T AAA A M 33 DESMI A S 2 DK 9400 Norresundby Denmark B T ROTAN E mail desmi desmi com Web www desmi com THE DESMI GROUP DE S M Running in the soft shaft seal when starting the pump seessssssosssoessoesoossooesoosssosssosssosssosssoesssesssee 34 T3 Safety A A 35 IK PRETIO i UU C 36 13 2 OU COUR CRUCT TR 36 13
3. Figure 7 shows the weight of the various pump types and pump sizes DESMI A S Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 Fax 45 98 17 54 99 E mail desmi desmi com Web www desmi com XR ROTAN 18 THE DESMI GROUP DE S M Pump weight kg excl incl valve Pump type GP CC HD PD 11 13 Pump size 7 29 4 20 22 14 16 18 20 18 20 40 42 6 O 3 6 55 61 40 46 43049 43 49 95 101 81 80 90 65 75 70 80 70 80 180 190 104 105 115 126 140 160 152 172 152 172 350 370 wr 190 210 205 225 205 225 400 420 152 201 460 520 500 560 500 560 18 8 50 56 35 41 36042 36 42 90 96 Figure 7 Table showing the weight in kg of the various pump types in the various pump sizes Weights excl valve the figures in brackets incl valve Weights excl motor gear and base frame if any Lift the pump mechanically if the pump s weight is more than the permitted number of kilos that people may lift Do not place fingers in the pump s ports when lifting or handling the pump The pump must be lifted using stable suspension points so that the pump is evenly balanced and the lifting straps are not lying over sharp edges The pump must be lifted in accordance with the lifting instructions Figure 8 Figure10 Motors fitted with lifting eyes must not
4. DK 9400 N rresundby Denmark Tel 45 96 32 81 11 ed Fax 45 98 17 54 99 Ba ROTAN E mail desmi desmi com Web www desmi com THE DESMI GROUP DE S M Maintenance During daily inspection check That the pump does not vibrate or emit jarring sounds That lubricated slide bearings are lubricated That open ball bearings are lubricated That any lubricating devices are in working order That any circulation pipes cooling heating or pressurised water pipes are in working order That power output and power consumption are correct That the operating pressure is correct During weekly inspection check That any filters and drainage holes are clean That the areas around the stuffing box and the bearings are free of dust That the soft stuffing box is leaking 10 100 drops per minute Whether flexible connecting elements are worn Replace if worn That mechanical shaft seals are not leaking During inspection every 2 months check That the bearings do not have too much play That the safety valve if fitted opens at the correct pressure That the safety valve if fitted is in working order Figure 23 The figure shows which parts or what must be checked and maintained on the pump and at what intervals this must be undertaken DESMI A S 45 Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 41 ed a
5. Fax 45 98 17 54 99 Dan ROTAN E mail desmi desmi com Web www desmi com THE DESMI GROUP DE S M 17 1 Adjusting the soft shaft seal The shaft seal must not be adjusted during operation It is important that the soft shaft seal leaks during operation as this provides lubrication and also releases the frictional heat that is generated The shaft seal with packing rings requires continuous adjustment to make sure that the volume of leakage by the stuffing box is correct Depending on the speed pressure pump size and viscosity the stuffing box must leak 10 100 drops per minute to remove the frictional heat that is generated between the shaft and the packing rings If there is insufficient leakage the heat generated can cause the gasket rings to harden and create increased wear on the shaft The leakage described above is achieved by tightening the packing rings axially so that they apply a pressure against the shaft This pressure restricts the flow of the liquid as the play between the shaft and the packing ring si in the order of a few thousandths of a millimetre Shaft seal housing NR ie an Jt i SX NSS SN XXX SS SS NNNNN Packing gland a cx ZZA Soft shaft seal Figure 24 The location of the soft shaft seal the shaft seal housing and the packing gland on the pump The design of the shaft seal housing does
6. desmi desmi com Web www desmi com THE DESMI GROUP DE S M HD EDK GP E HD ECHD AF B D C S ABBU B BA BC BG BH CJ BB CO CS K J BZ BY CR BV CA SS E DD 774 E o3 AK GS KG TZ UDE Ty S ae SS A E N N s Ness HS D m N 1 ME d 1 NE I 1 i i i AA A AD CB CE F BJ JL BF BE BD CT CU CT BR Ce BC EF POSEE CHD GP EM HD EM 2 DE T y S E OJ BA 8L BC BE CC CA DE y K DA a 4 DEG ait 2 i pol E AR rb Sk SSS N BG EE E i FN paal a ps ST i 1 A BU CB CE BG BV KX KY CD HE DC HD DD DESMI A S 65 Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 ed Fax 45 98 17 54 99 var ROTAN E mail desmi desmi com Web www desmi com THE DESMI GROUP DE S M CD PD EFDKMMW CD PD EFMM CD PD EFMMP D S AD AB Bu C B BA AU BO BS CK Cw BN BO BL CQ BN BD CY BF BE CS CC 4 K BZ BY CR Bv C f am Fin ANS 4 EEG p ZA N N d S NN Z j Z 4 Pa Pa SS SSS S N ZZ 977 T 274 KS K lj Chem A ate ZA pe AN RA WW A VG ZZ AS GIO RRA za Zj LEN L ANN i i i AA AT A cs CE BC CX CV BG CJ BL CN CT Cu MM MMP CD PD EF 8 gt 5 i Bu T
7. the play can thus not be set correctly Worn items must then be replaced before resetting the axial clearance 5 Loosen adjusting screws pos E according to the no of degrees obtained in the formula Figure 35 6 Tighten set screws pos NM 7 In non installed pumps once adjusted the play must be checked with an air gap gauge in at least 3 different points to ensure that the front cover is parallel with the rotor 8 Finally make sure that the pump shaft can turn easily and regularly and that no jarring sound can be heard Type GP 1 Loosen set screw pos DC on muff coupling pos DB 2 Loosen the short set screws pos KY 3 Tighten the long set screws pos KX until the rotor is positioned against the front cover 4 Loosen the long set screws pos KX according to the no of degrees obtained in the formula Figure 35 5 Tighten the short set screws pos KY 6 Tighten set screw pos DC 7 When adjustment is complete make sure that the pump shaft turns easily and regularly and that no jarring noises can be heard The flange motor in GP pumps must have a locked bearing at the end of the shaft end to ensure that the pump s axial clearance falls within permitted parameters Figure 36 The procedure for setting the axial clearance in the various pumps for installed and non installed pumps respectively DESMI A S 63 Tagholm 1 DK 9400 N rresundby Denmark A Tel 45 96 32 81 11 a Fax 45 98 17 54 9
8. 000 cSt Figure 42 The pump liquid s maximum permitted viscosity in cSt for standard versions of the various pump types DESMI A S 72 Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 ed Fax 45 98 17 54 99 o ROTAN E mail desmi desmi com Web www desmi com THE DESMI GROUP DE S M 25 6 Temperature Pump type Temperature GP Maximum 150 C HD PD CD Maximum 250 C Maximum 130 C Magnetic material Neodymium Iron ED Boron Maximum 250 C Magnetic material Samarium Cobalt CC Maximum 80 C Figure 43 The pump liquid s maximum permitted temperature in C for the various pump types For pumps with a safety valve the temperature is limited to a maximum of 150 C due to the valve key However the valve can be supplied with a different key enabling the pump s temperature range to be fully utilised For further temperature restrictions see the section entitled Hot liquids Pump types HD CD and PD produced in versions with special tolerances can in some cases be used up to 300 C ED pumpe Elastomer Elastomer brand Temperature type FPM Viton Approx 25 C 170 C FEP Teflon with Viton core Approx 60 C 205 C EPDM Ethylene propylene Approx 65 C 120 C FFKM Kalrez Approx 50 C 316 C Figure 44 The pump liquid s minimum maximum temperature limits for the various elastomers used in an ED pump Maximum 13
9. 11 Pump versions o1FCHD 1M22BS ttt mmm Example The numbers in the above example refer to the numbers on the next page This particular pump s designation is displayed on the pump s name plate refer to that DESMI A S 15 Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 ed Fax 45 98 17 54 99 Ba ROTAN E mail desmi desmi com Web www desmi com THE DESMI GROUP 5 1 2 Pump models 1 Pump types GP HD PD CD ED General Purpose monoblock cast iron pump Heavy Duty cast iron pump Petrochemical Duty carbon steel pump Chemical Duty stainless steel pump Environmental Duty pump with magnetic coupling made of cast iron carbon steel or stainless steel 2 Pump sizes 26 33 41 51 66 81 101 126 151 152 201 3 4 DN25 1 DN32 17 DN40 17 DN5O 2 DN65 27 DN80 3 DN100 4 DN125 5 DN150 6 DN150 6 DN200 8 Versions Suction washerharge couplings in line Suction washerharge couplings at 90 angle Flange Other versions see next page Hyphen 5 Material codes for main parts Code Type Pump casing Covers Rotor St wheel Shaft 1 GP HD GG 25 GG 25 St 60 2 3 CD G X 6 CrNiMo 18 10 X 8 CrNiMo 27 5X8 CrNiMo 27 5 4 PD GS 52 3 GG 25 St 60 2 All material codes can be used for ED pumps DESMI 6 Lubrication U Idler bearing and main bearing lubricated by pump medium M Externally lubricated idler bearing and main bearing
10. 200 Nm 151 201 M20 145 Nm 385 Nm Figure 15 The bolt sizes available for connecting flanges together with the maximum tightening torque depending on the pump size and material stated Column A contains the maximum tightening torque for pumps manufactured in grey cast iron material code 1 Column B contains the maximum tightening torque for pumps manufactured in steel material codes 3 or 4 You should not use bolts with a yield stress of more than 240 N mm corresponding to quality 4 6 for pumps manufactured in grey cast iron material code 1 DESMI A S 29 Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 ed Fax 45 98 17 54 99 RA ROTAN E mail desmi desmi com Web www desmi com THE DESMI GROUP DE S M 10 6 3 Threaded couplin Threaded couplings must always be made by skilled professionals Connecting a pump with an internal thread to a pipe with a conical thread can cause the pump casing to burst if the coupling is over tightened We recommend that you connect pumps with an internal thread to pipes with a cylindrical thread 10 7 Safety valve If the pump has been bought with a valve it is always fitted to the pump in the factory As standard the valve is fitted with S to the left and P to the right viewed from the pump s front cover When installing the pump the valve must be turned correctly with regard to the desired direction of ci
11. 40 Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 ed Fax 45 98 17 54 99 Aa ROTAN E mail desmi desmi com Web www desmi com THE DESMI GROUP DE S M 14 Pump liquids 14 1 Hot liquids When pumping hot liquids at high temperatures suitable procedures must be drawn up to prevent any danger of injury caused by touching or standing close to the pump The pump must be shielded when pumping hot liquids that create a surface temperature on the pump of more than 80 C A warning sign must be displayed in a clearly visible location When pumping hot liquids the pipes must be fitted with compensators to prevent tensions in the pump casing There are various maximum temperatures for ROTAN pumps depending on the pump type and the type of elastomer used see Figure 20 Figure 21 ROTAN pumps may not be used to pump liquids at a temperature that is higher than the liquid s ignition temperature and with reference to the maximum temperatures specified in the table in Figure 20 and no higher than the temperature in the table below Figure 21 depending on the type of elastomer used For pumps with a safety valve the maximum temperature is 150 C The lowest temperature identified of the four mentioned above constitutes the maximum temperature The maximum liquid temperature for ED pumps also depends on the magnetic material used see Figure 20 The temperature of the liquid also increases during ope
12. 45 98 17 54 99 Aa ROTAN E mail desmi desmi com Web www desmi com THE DESMI GROUP DE S M 10 6 2 Flange couplin Flange couplings must always be undertaken by skilled professionals to prevent tension in the pump casing Achieve parallelism between the flanges and observe the maximum tightening torque Before connecting the flange check that the flanges are parallel as any variance in parallelism will create tension in the pump casing Parallelism is achieved by aligning the pipe system or fitting compensators 2 Select the bolt size for the flanges on the basis of the pump size in the table in Figure 15 You should not use bolts with a yield stress of more than 240 N mm corresponding to quality 4 6 for pumps manufactured in grey cast iron material code 1 3 Find the maximum tightening torque in the table in Figure 15 Please note that the table contains the maximum tightening torque The necessary tightening torque depends on packing form material and the pump liquid s temperature The values in column A are valid for pumps manufactured in grey cast iron material code MA The values in column B are valid for pumps manufactured in steel material codes 3 or A 3 Cross tighten the bolts using the uniform tightening torque shown in the table below Bolt size maximum tightening torque Maximum tightening torque Pump size Bolt A 26 M12 30 Nm 80 Nm 33 126 M16 75 Nm
13. 7 Material codes for idler bearing Code Idler Bush Idler Pin GP HD PD Idler pin CD 1 Cast iron Hardened 16 MnCr 5 X 8 CrNiMo 27 5 2 Bronze Hardened 16 MnCr 5 X 8 CrNiMo 27 5 Carbon Hardened 16 MnCr 5 X 8 CrNiMo 27 5 4 Al oxide Cr oxide coated 16 MnCr5 Cr oxide coated X 8 CrNiMo 27 5 5 Carbon Al oxide polished Al oxide polished 8 Tungsten carbide Tungsten carbide Tungsten carbide 8 Material codes for main bearing Code Bearing Bush Shaft GP HD PD Shaft CD 1 Cast iron St 60 2 X 8 CrNiMo 27 5 2 Bronze St 60 2 X 8 CrNiMo 27 5 3 Carbon St 60 2 X 8 CrNiMo 27 5 4 Al oxide Cr oxide coated St 60 2Cr oxide coated X 8 CrNiMo 27 5 8 Tungsten carbide Coated St 60 2 Coated X 8 CrNiMo 27 5 9 Silicon carbide SiC casing or Cr oxide coated St 60 2Cr oxide coated X 8 CrNiMo 27 5 Not available SiC casing or B Ball bearing St 60 2 9 Shaft seal B Packing rings Teflon impregnated 2 Mechanical shaft seal DIN 24960 KU with O ring or bellows 22 Double mechanical shaft seal DIN 24960 KU O ring type For ED pumps only 12 Magnet length 2 cm 13 Magnet length 3 cm 16 Magnet length 6 cm 18 Magnet length 8 cm 140 Magnet length 10 cm 10 Special configurations S All special configurations are marked with S DESMI A S Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 Fax 45 98 17 54 99 E mail desmi desmi com Web www desmi com 16 l ROTAN THE DESMI GROUP 6 ROTAN pump co
14. 70 C and the amount of grease required per re lubrication in grams for the pump types and sizes indicated C3 bearing bracket bearing main bearing DESMI A S 49 Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 ed a Fax 45 98 17 54 99 Aa ROTAN E mail desmi desmi com Web www desmi com THE DESMI GROUP DE S M 17 2 2 Service life ball bearings Ball bearings must be replaced as indicated below to ensure explosion protection Ball bearings with two seal rings have a limited service life after which they must be replaced The ball bearings minimum service life is shown in the tables in Figure 27 The ball bearings service life is reduced to 90 of the value indicated if the pump is to be used in a potentially explosive environment 10 000 hours non ATEX 9 000 hours ATEX Example Ball bearing s service life The bearing s service life is also halved for every temperature increase of 15 C above 70 C for both Atex pumps and non Atex pumps Example Temperature upto 70 C 10 000 hours ATEX non ATEX 85 C 5 000 hours ATEX non ATEX DESMI A S 50 Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 ed a Fax 45 98 17 54 99 Aa ROTAN E mail desmi desmi com Web www desmi com DESMI THE DESMI GROUP Service life of ball bearings in ROTAN pumps 1000 cSt Maximum operating pressure Min service life in Pump typ
15. CC DESMI A S 71 Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 ed Fax 45 98 17 54 99 Dan ROTAN E mail desmi desmi com Web www desmi com THE DESMI GROUP DE S M 25 3 Operating pressure Pump type size Operating pressure pump Operating pressure heat casing chamber GP HD PD CD ED Maximum 16 h r 26 33 41 51 66 i Maximum 10 bar 81 maximum 25 bar GP HD PD CD ED Maximum 10 bar 101 126 151 152 Maximum 10 bar 201 maximum 25 bar CC Maximum 10 bar Figure 40 The maximum operating pressure in bar for the various pump types However the maximum pressure stated depends on the delivery pressure to the pump and the pump size The maximum operating pressure for pumps with a safety valve is lower than stated here Pump type GP is also available in a special high pressure version that can manage a maximum of 25 bar The high pressure version is available in pump sizes 27 34 42 52 67 82 The pump size on the name plate will indicate whether the pump can manage a maximum of 25 bar 25 4 Suction lift Pump type Suction lift Maximum 0 5 bar priming vacuum GP HD PD CD ED CC Maximum 0 8 bar vacuum during operation Figure 41 The maximum suction lift in bar at priming vacuum and vacuum during operation respectively 25 5 Viscosity GP Maximum 7 500 cSt ED Maximum 10 000 cSt HD PD CD Maximum 75 000 cSt CC Maximum 1
16. E mail desmi desmi com Web www desmi com THE DESMI GROUP DE S M 10 5 Positioning of the pump on the foundation There must whenever possible be plenty of room around the pump to allow for repairs and maintenance Figure 12shows the minimum distance to the wall to ensure that removal of the front cover is possible 7 ange 7 FI UY mx Front cover 7 Distance between pump and wall Pump size 26 33 41 51 66 81 101 126 151 152 201 V dist in mm 50 60 65 70 80 100 115 140 165 180 215 Figure 12 The minimum distance to the wall V dist in mm to enable removal of the front cover The table shows the size of the V dist for the various pump types This distance must be observed for both horizontally and vertically positioned pumps The pump must be placed on a solid vibration free foundation with a level surface and bolted firmly to the floor If the surface is not level compensation must be made for this using a suitable intermediate layer so that preloads are avoided Bolt the pump securely to the foundation You must also take into account the pump s suction lift see section entitled Suction lift under Technical specifications If the pump has a soft shaft seal a drainage pipe must be connected to the bracket s drainage hole Vertical pumps are bolted securely to an existing wall or a vertically cast foundation The minimum distance between the front cover
17. LU FL a ss E EE ET 15 5 1 Pump 11 Fi 71 TJ 15 6 ROTAN pump configuration options semmsmrsmensunessnessessnnsnesrebssrernsnennespsnssnssp nnsadennnssdsde I7 Te lt Transportine the pump AS QU TBERUU AID amnesi 18 TEN rio 0503771 DS I srba 18 9 Storage long term preservation and frost protection Of the pump e eeeeeeeeeeeee 21 OD SCOT ABCs D EM E E 21 9 2 Preservation procedure etr ee eees t ttrn ot etta tiv atre iV ebbe se eva P ae ee HS Eine Pina eua a Ebo re PUE see eee eee se edo 22 9 3 Frost protection Mr 22 10 A SN NE 23 10 1 Selecting the motor sesererververnneenesnnneennennennnennnnnnnnennnenenennnenenennnnennnennnennnennnennnennnnennnennnennnennneenne 23 10 2 Connecting the motor and the pump e eeesssvessnnvennvnveneveesnnvnnnnnvensnnesnnvennnnennnnnvennnnnsnnesnnnessnnnnenenee 23 10 2 1 Aligning the motor and the pump eeservvrrnvrrnrrrrnrrrrrrnrrrnnrnrernnrrnrrrnrenrrrnnrrnnrrnsernnrensrensrsnessnsssesssesnessneenn 24 IEEE M 24 10 4 Horizontal vertical positioning of the pump eeseveeevvvsvrennverevennnenenennnesnnnennnennnennnennnesnneennnennneenee 25 10 4 1 Horizontal positioning of the pump sess nr en nnne nnne ener 25 10 4 2 Vertical positioning of the pump seseseeeseeseeeeeneen non nc ana nono renerne nerne 25 10 5 Positioning of the pump on the foundation
18. and the floor can be seen in Figure 12 DESMI A S 26 Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 ed a Fax 45 98 17 54 99 Aa ROTAN E mail desmi desmi com Web www desmi com THE DESMI GROUP DE S M 10 6 Before connecting the pipes In order that the pump is able to draw it must be filled with liquid before it is started Before the pipes are fitted the pump is filled with a volume of liquid that enables the liquid to start running out of the pump Vertically positioned pumps are filled with liquid after the pipes are connected The pump must be installed so that there is no tension between the pipe and the pump casing The permitted loads on the pump flanges are described in the following section External loads on pump flanges Clean out any impurities from the pipe system before the pump is connected to it Remove the protective plugs from the pump ports before connecting the pipes 10 6 1 External loads on pump flanges There must be no tension between the pipe and the pump casing when the pump is installed Tension in the pump casing as a result of preloaded pipes will create a significant increase in the rate of wear Pipes and wires must be supported as close to the pump casing as possible The diagram below shows the maximum permitted external force and torque that can be applied to the pump flanges Fx Figure 13 The location of forces and torque on the p
19. be used to lift the whole pump only to lift the motor separately gt gt oee DESMI A S 19 Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 ed Fax 45 98 17 54 99 var ROTAN E mail desmi desmi com Web www desmi com THE DESMI GROUP Lifting instructions for pump with free shaft end Attach 2 shackles to the flanges on the pump for lifting straps N 1 4 j SX Z o6 9 of Y A c m e o bo P Al No o Figure 8 Figure 9 Lifting instructions for pump with gear motor The shackles must be placed in the flanges at the pump s centre of gravity Lifting instructions for GP pump type DESMI A S Figure 10 Figure 11 Lifting instructions for pump with motor Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 Fax 45 98 17 54 99 E mail desmi desmi com Web www desmi com 20 l ROTAN THE DESMI GROUP DE S M 9 Storage long term preservation and frost protection of the pump Rotan pumps are protected against corrosion at the factory The pumps are preserved internally using oil and pumps for the food industry are preserved using vegetable oil External non stainless surfaces are covered with primer and protective paint except the shaft Flanges and pipe couplings are closed using plastic plugs This protection will last for approximately six months on the condition that the pump is stored indoors in a dry du
20. they are filled with a suitable amount of grease in the factory Ball bearings with one single seal ring or no seal ring require re lubrication via the lubrication nipple If the ball bearings require lubrication they are fitted with a lubrication nipple DESMI A S 48 Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 ed Fax 45 98 17 54 99 RA ROTAN E mail desmi desmi com Web www desmi com THE DESMI GROUP DE S M The bearings must be lubricated at the lubrication intervals and using the volume of grease as stated in the table in Figure 27 The re lubrication interval is halved for every 15 C that the temperature exceeds 70 C 3 500 hours 1 750 hours Example Temperature up to 70 C 85 C Lubrication of ball bearings Pump Pump Ball bearing Re lubrication interval Amount of grease size fine tune in hours at maximum required per re yP yP 70 C lubrication in grams 41 HD 6305 3 500 hours 6g 51 cD 6306 3 500 hours 79 HD 6307 3 500 hours 9g 66 CD 6306 3 500 hours 79 HD 6307 3 500 hours 9g 81 HD 6310 3 500 hours 15g CD kk 101 HD 6308 3 500 hours 11g HD 6310 3 500 hours 15g CD 126 HD 6310 3 500 hours 159 151 CD 6310 2 500 hours 15g 152 HD 6312 2 500 hours 21g 6315 2 500 hours 30g di gg 6317 2 500 hours 409 Figure 26 The type of ball bearing and the re lubrication intervals in hours at a maximum of
21. 3 Operating principle valve eee eee eee esset entente seen neta ennen eee setas etas ccoo ccoo c stes stesse sneen seta 37 13 4 Setting the safety ValVO ooooocoonnonnnonnnconaconanonnnconoconoconoconccnon conc cono nono 37 14 PUDE A RR 41 14 1 Hot liquids o 41 CN AAA TN 42 A A 43 HESTE SETTLERS iii 44 TE IA 2 TLS M 44 17 1 Adjusting the soft shaft seal eeeeee eee eerie eese e eese enean enata netos tasses stessa stes seta setas seen seta seta 46 17 1 1 Repacking soft shaft seal soroororernronrorornrenennornrernnvrrerernreresnnnnrerennrerrarnrerarunnnseveruresrnnnssrasnrevssvenener 47 Ip MIDI E ESS rs 48 17 2 1 Lubricating ball b rings iere a take de p Deep Een ul 48 17 2 2 Service life ball bearimgs oiii here tette dete ttn rH RER ee IE a EORR nede sp 50 17 3 Lubricating slide bearings Leere eee eerte eese ee seen neta aetas tanen satus eee sne en eee sneen seen ta seta 52 18 Troubleshooting PR c 55 I9 Emptying and cleaning the PUR ae ii 56 20 LTE EEE RE AAA 57 TEE A RE 58 21 1 Setting of temperature sensor eerie eese eese eene tentent tn staat ta sta setas tasa tasa toss tasa esses senses sno 58 21 2 Axial clea ra
22. 4 2RS1 12 000 hours 25 bar GP 42 6305 2RS1 13 000 hours 25 bar 52167 6307 2RS1 8 000 hours 25 bar 82 6310 2RS1 8 000 hours 25 bar Figure 28 Ball bearing types and the minimum service life in hours for pump type GP in the sizes indicated The service life is calculated on the basis of a temperature of 70 C and a viscosity of 1000cSt and based on the maximum operating pressure of ROTAN high pressure pumps The bearings service life is reduced at temperatures above 70 C and in ATEX pumps see above 17 3 Lubricating slide bearings Slide bearings must be lubricated to guarantee explosion protection Slide bearings must be lubricated with heat resistant grease when pumping liquids over 100 C to guarantee explosion protection Slide bearings must be lubricated with heat resistant grease when pumping liquids over 100 C gt Ep E gt The ROTAN pump is designed with a idler bearing and a main bearing The idler bearing is a slide bearing and the main bearing can be either a slide bearing or a ball bearing The table below shows what the various pump types are equipped with The position numbers refer to the section entitled Spare parts drawings DESMI A S 52 Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 ed a Fax 45 98 17 54 99 Dan ROTAN E mail desmi desmi com Web www desmi com THE DESMI GROUP DE S M Type HD Idler bearing pos AD main bearing pos BC Main b
23. 45 98 17 54 99 Ba ROTAN E mail desmi desmi com Web www desmi com THE DESMI GROUP DE S M Quality management system ROTAN pumps are manufactured in accordance with DESMI s quality management system which is certified by BVQI in accordance with the requirements of ISO 9001 ES UKAS 1509001 Luih Testing of pumps All ROTAN pumps and safety valves have been statically and dynamically tested in the factory Static pressure testing is conducted to ensure that the pumps do not leak and that they can maintain the specified maximum operating pressure The dynamic test is conducted to ensure that the pump can deliver the specified volume of liquid at the specified pressures The pumps are tested with oil However pumps for liquids used in the food industry are tested exclusively with vegetable oil Pumps fitted with a heating jacket cooling jacket are also specially tested to achieve extra safety to ensure that the heating liquid in the front cover and the cooling jacket on the rear cover cannot pass into the pump liquid All pumps are delivered with a signed test certificate The tests described are conducted in accordance with the procedures set out in DESMI s quality management system and in accordance with international classification companies DESMI A S 6 Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 ed Fax 45 98 17 54 99 RA ROTAN E mail desmi desmi com Web www desmi com T
24. 46 The m intenance DrOCOSS don reip er PEOR A A A EEOSE REEE rT E KEES 75 27 1 The service life of ball bearings eserereveveveeevnernnesnnennneennrenneennnennnennnnnnnennnennneennnnennennnennennnennneneneeee 75 27 2 INSpection c 75 28 Subsidiary companies DESMT 3 8 decisa ceo nhe doe taa da Z7 DESMI A S 4 Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 a Fax 45 98 17 54 99 4 ROTAN E mail desmi desmi com Web www desmi com THE DESMI GROUP DE S M 1 General information This user manual relates to ROTAN internal gear pumps The entire user manual must be read thoroughly before the pump is transported lifted installed assembled and any other activity described in this user manual Everyone who is to work with this pump must read this user manual before it is taken into operation Upon receipt check that the delivery is complete and undamaged Any deficiencies or damage must be reported immediately to the transport company and the supplier in order that a claim may be valid The user is responsible for compliance with the safety requirements described in this user manual If people who are expected to have a need to refer to the user manual are of a different linguistic origin than the language in which the user manual has been supplied it is recommended that the user manual is translated into the language in question In addition to the instruc
25. 475 31 5 245 17 5 HD PD ED 2291 5673 62 55 47 152 201 3659 5674 49 45 41 CD ED 4381 61 52 43 152 201 4382 50 45 40 35 DESMI A S 39 Tagholm 1 DK 9400 N rresundby Denmark Li SR ROTAN E mail desmi desmi com Web www desmi com THE DESMI GROUP DE S M Figure 19 Setting value A in mm based on the pump type pump size valve number and the valve s operating pressure in bar Any change to the pump s operating pressure must be followed by a change to the valve s setting gt If the valve is not reset this will mean either that the valve s safety function fails with the effect that there is a risk of pressure accumulation or that the valve remains open permanently creating a significant heating up of the pump and pump liquid which must not last for a long period of time The liquid volume may not circulate through the safety valve for a long period of time Circulation over a long period of time through the safety valve causes a significant heating up of the pump and pump liquid and this can create a risk of explosion The liquid volume may not circulate through the safety valve for a long period of time Circulation through the safety valve over a long period of time can destroy the pump The safety valve must never be set or adjusted during operation Whenever the valve is set or readjusted the regulating screw must be repacked with thread tape gt Pb DESMI A S
26. 5 C in water DESMI A S 73 Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 ed Fax 45 98 17 54 99 Aa ROTAN E mail desmi desmi com Web www desmi com THE DESMI GROUP DE S M 26 Supplementary requirements for ATEX pumps 1 Dry running not permitted see section 12 Make sure that there is liquid in the pump casing Dry running causes heat to develop and the possible creation of sparks by the pump casing the bearings and by the shaft seals The formation of bubbles and cavitation in the pump casing are just as dangerous as dry running You must therefore make sure to bleed the pump if this occurs Flow and pressure must be monitored and checked regularly 2 The maximum permitted temperature of the pump surface must be as follows In the presence of potentially explosive gases the pump s surface temperature must be equal to or less than 80 of the gas s ignition temperature in Celsius In the presence of potentially explosive dust the temperature must be equal to or less than 2 3 of the ignition temperature in Celsius Example If a pump is surrounded by inflammable gas with an ignition temperature of 100 C the pump s surface temperature must be a maximum of 80 C or less 3 All instruments and auxiliary systems used in coupling with an ATEX pump such as gears motors and flushing systems must be ATEX approved components and of the same standard as the pump 4 Make sure that there is always
27. 5 96 32 81 11 ed a Fax 45 98 17 54 99 Aa ROTAN E mail desmi desmi com Web www desmi com THE DESMI GROUP DE S M 13 1 Valve configurations For pumping liquids at high temperatures the valve can be supplied with a heating jacket The heating jacket prevents the pump liquid from coagulating when passing through the valve 13 2 Positioning the valve The safety valve is fitted with an inlet and an outlet The inlet and outlet are named as follows Inlet E Suction side B S Outlet E Pressure side E P The suction side and pressure side are indicated on the valve by the letters S and P see Figure 16 11 Suction side Pressure side Figure 16 Shows how S for suction side and P for pressure side are indicated on the valve If the pump has been bought with a valve it is always fitted to the pump in the factory As standard the valve is fitted with S to the left and P to the right viewed from the pump s front cover Before the pump is installed in a pipe system the valve must be positioned correctly with regard to the desired direction of circulation as incorrect positioning of the valve will stop it from working The valve s S inlet must be placed by the pump s suction side so that the regulating screw points towards the suction side DESMI A S 36 Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 ed Fax 45 98 17 54 99 RA ROTAN E mail desmi desmi com Web www desmi com THE DES
28. 9 Aa ROTAN E mail desmi desmi com Web www desmi com THE DESMI GROUP DE S M Lubrication of slide bearings Amount of grease in grams Pumpe type IDA HD GP cD PD ED Re lubrication interval main bearing Idler bearing in hours CC 1 1 5 5 81 8 hours 2 2 101 2 2 5 126 2 5 4 151 2 5 6 152 4 10 201 8 14 Figure 29 Re lubrication intervals and amounts of grease in grams for lubrication of slide bearings main bearing and idler bearing DESMI A S 54 Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 ed Fax 45 98 17 54 99 var ROTAN E mail desmi desmi com Web www desmi com THE DESMI GROUP 18 Troubleshooting 8 Lack of co ordination between pressure and canisteracity DESMI The pump cannot self prime The pump loses liquid after self priming The canisteracity is too low The pump is making a noise The motor is overloaded The pump has jammed aN ROO The pump wears quickly dei op Too great a vacuum xo Cavitation Viscosity too high X X X B lt x X X o Temperature too high X The pump is drawing air x lt Pressure too high X X Defective valve c Ooj oO1 3jo0 N I The pump is corroded X The pump is worn X X X Xx eo Impurities in the pump X X
29. 9 var ROTAN E mail desmi desmi com Web www desmi com THE DESMI GROUP DE S M 22 Spare parts We recommend that you use original spare parts DESMI accepts no liability for any personal injury or damage to the pump as a consequence of the use of non original spare parts that do not satisfy precisely the same strict quality requirements as original DESMI spare parts 23 Ordering spare parts When ordering spare parts the following information must be provided The pump s serial number 252756 The pump s SX no 5310 The pump type HD81ERM 1U332 If relevant the code of the mechanical shaft seal AD If relevant the number of the magnetic coupling If relevant the number of the safety valve The spare part s position designation Pos CJ The spare part s designation Mechanical shaft seal The above information may be found on the pump s name plate Figure 38 The serial number is also embossed on the pump s left port ROTAN PUME ES DESM ROTAN DK 5000 Odense C MADE IN DENMARK Figure 37 An example of a pump s name plate 23 1 Spare parts drawings This section contains a representative selection of ROTAN sectional drawings Not all pump configurations are included but taken together the drawings selected show the most common position designations and designs DESMI A S 64 Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 ed Fax 45 98 17 54 99 Ba ROTAN E mail
30. Axial clearance The axial clearance is the distance between the rotor idler and the front cover Idler Front ve Rotor V Axial clearance Figure 31 The axial clearance between the rotor idler and the front cover The axial clearance is set in the factory in accordance with the section entitled Setting the axial clearance The axial clearance must be reset after the pump has been repaired or if the pump is worn There are various ways of setting the axial clearance depending on the pump type and whether or not the pump is installed in a pipe system See the section entitled Setting the axial clearance 21 1 1 Checking the axial clearance The axial clearance can be checked as described below Non installed pump The pump s axial clearance can be checked with an air gap gauge which is passed in through one of the pump s ports between the rotor idler and the front cover The axial clearance identified must correspond to the values in the table in Figure 33 Installed pump The axial clearance cannot be checked when the pump is installed in a pipe system The play must therefore be reset as described in the section entitled Setting the axial clearance DESMI A S 59 Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 ed a Fax 45 98 17 54 99 Aa ROTAN E mail desmi desmi com Web www desmi com THE DESMI GROUP DE S M 21 1 2 Setting the axial clearance The axial clearance is set by m
31. BO BQ BN Cu CJ CY BF SE T cQ CS cC CU a X CR BV EA L I 1 t Ld J d FREE SE SS ANN e eese l C 1 NJ FT LI SG RE ASS Vay TLD NKUL all IK Sel ON EM y m NN i J p i Drejes 90 A mod halvm ne t i i i BC CX CV 8G LT BM CN CT BZ BY CT DESMI A S 66 Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 ed Fax 45 98 17 54 99 var ROTAN E mail desmi desmi com Web www desmi com THE DESMI GROUP DE S M ED EFDK Safety valve for HD GP CD PD ED DESMI A S 67 Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 ed Fax 45 98 17 54 99 Ba ROTAN E mail desmi desmi com Web www desmi com THE DESMI GROUP 24 Spare parts list DESMI Pos Designation Pos Designation A Pump casing BN Shaft seal housing B Gasket O ring BP Intermediate bearing C Gasket BQ Gasket D Bolt BR Spacer ring E Bolt BS O ring F Bolt BU Rotor G Pipe plug BV Shaft J Drive screw BY Ball bearing nut K Nameplate BZ Ball bearing lock ring S Blind cover CA Key T Pipe plug CB Key U Gasket CC Fixing ring spacer ring AA Front cover CD Threaded screw AB Idler CE Snap ring AC Idler pin CJ Packing rings mechanical AD Idler bush shaft seal AE Lubrication nipple pipe plug CK Mechanical shaft seal AF Gasket CM Lantern ring AJ Heating jacket CN _ V ring AK Bolt CQ Bearing bracket AL Pi
32. Denmark Eg y UKAS QUALITY ISO 9001 MANAGEMENT THE DESMI GROUP DE S M Name plate ROTAN PUMP ND SEAL DESMI ROTAN CE 9400 N rresundby DENMARK YEAR O This user manual is valid for any pump on which the name plate contains the same information as is displayed here If the pump s and the motor s name plate bears an EEx the unit is suitable for use in a potentially explosive environment A The name plate must never be removed from the pump If the name plate is removed it is not possible to identify the pump at once and it will not be possible for warnings contained in this manual to relate to the specific pump application The pump s order number and serial number are displayed on the flange This user manual has been produced in accordance with the directions of the Machine Directive 98 37 EC and the directions of standards DS EN 62079 DS EN 292 2 and DS EN 809 This user manual was last revised 04 2004 LDM DESMI A S 1 Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 ed a Fax 45 98 17 54 99 Ba ROTAN E mail desmi desmi com Web www desmi com THE DESMI GROUP DE S M Contents N me Plate e TT 1 Dg Generalinform tion m c ES EENet OVRE 5 2 EC declaration of conformity NAAA A 11 Me Y 14 1 meme E A A E en 12 E DIC RIP TEN 14 5
33. HE DESMI GROUP DE S M This user guide covers all standard versions of the ROTAN pump It applies to pump types described in Figure 2 pump sizes described in Figure 3 pump versions described in the section entitled Pump models and the versions shown in Figure 6 In this manual the front and the rear ends of the ROTAN pump are referred to Figure 1 shows which end is called front and which is called rear Front Figure 1 Front and rear of the ROTAN pump The ROTAN pump has a modular construction and can be supplied in a number of options Because of the large number of possible combinations it is not possible to cover all models or special versions available in this user manual If the user manual proves to be incomplete with regard to the above or to the item supplied you are of course welcome to contact DESMI This user manual differentiates between the terms pump types pump sizes pump models pump versions DESMI A S 7 Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 ed a Fax 45 98 17 54 99 Aa ROTAN E mail desmi desmi com Web www desmi com THE DESMI GROUP DE S M Pump types The Rotan pump is supplied in the following pump types Pump types application Pump type Designation Application GP General Purpose Mainly pumping of clean oils Mainly pumping of highly viscous liquids HD Heavy Duty Typical applications oils asphalt chocolate
34. MI GROUP DE S M Position the valve correctly with S over the inlet suction side and P over the outlet pressure side gt 13 3 Operating principle valve When the pressure increases in the pump the pump liquid is forced into the valve s pressure side P If the valve s preset pressure is exceeded the internal key is depressed after which the pump liquid is forced out of the outlet side of the valve and down into the pump again thus creating a recirculation of the pump liquid This recirculation may not last for a long period of time as this will cause the liquid and the pump to heat up significantly The pump must not pump with the valve open for a long period of time Recirculation through the safety valve over a long period of time causes the liquid and the pump to heat up significantly Recirculation through the safety valve over a long period of time can destroy the pump gt gt D 13 4 Setting the safety valve The safety valve is set by adjusting the regulating screw which is located on the end of the valve see Figure 17 Regulatingscrew Figure 17 The location of the regulating screw on the ROTAN safety valve The safety valve is always set at the factory DESMI A S 37 Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 ed a Fax 45 98 17 54 99 Ba ROTAN E mail desmi desmi com Web www desmi com THE DESMI GROUP DE S M The valve is set in accordanc
35. ROUP XR ROTAN DESMI DESMI A S Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 Fax 45 98 17 54 99 E mail desmi desmi com Web www desmi com l ROTAN 78
36. U directives and the national legislation that enforces them The product is designed for use when connected to a motor with the aim of creating a joint machine and for this reason it does not as a component satisfy the provisions of these directives in all respects It is also declared that the harmonised standards specified which implement these directives or parts of them are satisfied When the pump is connected to a motor and thus treated as one unit constitutes a machine this machine as a whole must be risk assessed and declared in accordance with all the relevant provisions These relevant provisions must also include the Machine Directive as referred to in this declaration and the ATEX Directive if it is intended to set up the pump in a potentially explosive atmosphere It is declared that the product may not be taken into use until such compliance has taken place EC Declaration of Conformity valid for ROTAN pumps supplied with a motor Machine Directive 98 37 EC Implementing Order no 561 Annex Il A The above manufacturer hereby declares that the product in question has been produced in accordance with the specified EU directives and the national legislation that enforces them It is also declared that the harmonised standards specified which implement these directives or parts of them are satisfied N rresundby April 2004 G ILL PT Peter Hartig Technical Director DESMI A S
37. User Manual incl ATEX English THE DESMI GROUP DE S M ROTAN PUMP Types GP HD PD CD ED CC DESMI A S Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 Fax 45 98 17 54 99 E mail desmi desmi com Internet www desmi com Manual T1456UK EC Declaration This document contains two declarations only one of which is valid for the pump supplied The EC Component Declaration is valid for pumps supplied without a motor which makes the EC declaration of conformity invalid The EC Declaration of Conformity is valid for pumps supplied with a motor which makes the EC component declaration invalid The pump is also declared only in accordance with the ATEX Directive in the event that the pump has been ordered for use in a potentially explosive environment as ROTAN pumps as a rule are not supplied in accordance with the ATEX Directive The information on the pump s name plate will define whether it can be used in a potentially explosive environment Manufacturer Address Tel E mail Product Type EC directives 98 37 EC 89 336 EEC 73 23 EEC 94 9 EC DESMI A S Tagholm 1 Postboks 226 DK 9400 N rresundby Denmark 00 45 96 32 81 11 desmi desmi com CE ROTAN pumps HD CD PD GP CC ED and RT The Machine Directive The EMC Directive The Low Voltage Directive only applies for pumps supplied with a motor The ATEX Directive only applies
38. ae CD Re lubrication interval M iue i 72777 Hours Main Idler bearing PD ED CC bearing 26 8 1 1 33 8 1 1 41 8 1 1 51 8 1 5 1 5 66 8 1 5 1 5 81 8 2 2 101 8 2 2 5 126 8 2 5 4 151 8 2 5 6 152 8 4 10 201 8 8 14 Figure 45 Re lubrication intervals and amount of grease for slide bearings Ongoing operating control and maintenance DESMI A S 76 Tagholm 1 DK 9400 N rresundby Denmark HE 4 ROTAN E mail desmi desmi com Web www desmi com THE DESMI GROUP DE S M 28 Subsidiary companies DESMI A S DESMI Ltd Address DESMI A S Norman House Rosevale Business Park Parkhouse Industrial Estate West Newcastle Staffordshire ST5 7UB England Tel 44 1782 566900 Fax 44 1782 563666 DESMI GmbH Rotan Pumpengesellschaft Address DESMI A S Neuh fer Stra e 23 D 21084 Hamburg Germany Tel 49 407 519847 Fax 49 407 522040 DESMI Inc Address DESMI A S 2551 Eltham Avenue Suite G Norfolk Virginia 23513 USA Tel 1 757 857 7041 Fax 1 757 857 6989 DESMI K amp R Pompen B V Address DESMI A S P O Box 9684 NL 3506 GR Utrecht Holland Tel 31 30 261 00 24 Fax 31 30 262 33 14 DESMI Norge AS Address DESMI A S Vigeveien 46 N 4633 Kristiansand S Norway Tel 47 38 12 21 80 Fax 47 38 12 21 81 DESMI A S 77 Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 ed Fax 45 98 17 54 99 var ROTAN E mail desmi desmi com Web www desmi com THE DESMI G
39. after approx 30 minutes operation the packing gland screws must be tightened gradually so that the leakage is reduced Check that the gasket does not become hot If the gasket becomes hot loosen the packing rings slightly after which you must check that the temperature is falling When the leakage is between 10 100 drops per minute do not tighten the screws any more The number of drops per minute depends on the pump size pressure and speed The gasket must not be tightened so much that there is no leakage The soft shaft seal must leak continuously The leakage rate must be checked at regular intervals see section entitled Maintenance If necessary see also the section entitled Adjusting the soft shaft seal DESMI A S 34 Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 ed Fax 45 98 17 54 99 Ba ROTAN E mail desmi desmi com Web www desmi com THE DESMI GROUP DE S M 13 Safety valve ROTAN pumps are supplied both with and without a safety valve Pumps supplied with a safety valve protect pumps pipes and motors in the event of increased pressure in a system If a pipe system contains a facility to block the pump s pressure line the pump must be fitted with a safety valve or a safety valve must be integrated into the pressure line to take the full liquid volume as pumping up against a blocked outlet line causes unlimited pressure accumulation If itis possible to block t
40. are being pumped The soft shaft seal must not be adjusted when the pump is in operation The ROTAN pump must not be used to pump foods requiring FDA or 3A approval see section entitled Pump liquids Use hearing protection when close to the pump when the noise level exceeds the maximum permitted values see section entitled Noise If necessary display a sign stating that hearing protection must be worn Electrical couplings must be established by authorised professionals in accordance with the prevailing standards and directives gt gt gt oeeo DESMI A S 13 Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 ed Fax 45 98 17 54 99 Aa ROTAN E mail desmi desmi com Web www desmi com THE DESMI GROUP 4 Safety ATEX DESMI Pumps must not be used in a potentially explosive environment unless the pump s name plate is labelled EEx II 2GD c see the pump s name plate DESMI A S Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 Fax 45 98 17 54 99 E mail desmi desmi com Web www desmi com l ROTAN 14 THE DESMI GROUP DE S M 5 About ROTAN 5 1 Pump models The ROTAN pump has a modular construction and can be supplied in a large number of models The pump s designation is made up of a series of codes which describe various features of the pump Below is an example of some of the codes Pump versions see section
41. conformity or an EC component declaration depending on whether the pump has been bought with or without a motor When fitting a ROTAN pump in an existing system and connecting pumps and motors we would point out that the whole plant combination of motor and pump must be assessed and given a new CE label in order to ensure that the combination represents no new hazards with regard to health and safety Please note that pumps supplied by DESMI without a motor must be connected using an explosion proof motor if you intend to use the pump in a potentially explosive atmosphere A ROTAN pump may not be put into operation until this CE labelling procedure has taken place The manufacturer that ultimately assembles the final system is responsible for ensuring that such compliance is achieved DESMI is not responsible for this compliance The above requirement is valid within the EC DESMI A S 11 Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 ed a Fax 45 98 17 54 99 Ba ROTAN E mail desmi desmi com Web www desmi com THE DESMI GROUP DE S M 3 Safety All work on the pump including adjustments repairs pipe couplings etc must be undertaken by professionally qualified staff When repair and maintenance work has been completed any safety equipment provided must be refitted in its original state before the pump is started Never shut off the pump s suction and or pressure side during operat
42. d pressure output amp temperature During weekly inspection check That any filters and drainage holes are clean and that the areas around the stuffing box and the bearings are free from dust During inspection every two months check That the bearings do not have too much play That the oil change intervals for oil lubricated units are not exceeded That the stuffing box is in working order If necessary add sealing or reseal packing rings If flexible coupling elements are worn replace if necessary That the safety valve if fitted is in working order During service work check All parts for wear worn parts should be replaced That all parts in an assembly are positioned correctly DESMI A S 75 Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 ed Fax 45 98 17 54 99 Ba ROTAN E mail desmi desmi com Web www desmi com THE DESMI GROUP DE S M Pumps supplied with slide bearings for external lubrication must be lubricated as shown in Figure 37 If a pump has been supplied with slide bearings for external lubrication there is an M in the pump designation see the pump s name plate Example HD51BCHD 1M22BS During installation lubricate ROTAN pumps with a Shell grease Alvania Grease R3 The table below which shows re lubrication intervals and amounts of grease is only a guideline as re lubrication intervals in particular are largely dependent on the conditions
43. desmi com THE DESMI GROUP DE S M 10 Installation All items in this section must be read and observed when installing ROTAN pumps 10 1 Selecting the motor The flange motor in CC and GP pumps must have a locked bearing at the end of the shaft end as well as vertically positioned pumps to ensure that the pump s axial clearance falls within permitted parameters 10 2 Connecting the motor and the pum If you intend to use the pump in a potentially explosive environment the pump must be connected to an explosion proof motor Carefully shield the coupling between the pump and motor gt Eb Before connecting the motor and the pump check that the pump shaft can revolve easily and regularly 2 When connecting the motor with the pump you must make sure that the pump shaft and the motor shaft are on precisely the same centre line and that there are a few mm between the shaft ends as otherwise you run the risk of the pump being destroyed during operation 3 Pump types HD CD PD and ED must be connected to the motor by means of an elastic coupling 4 Ifa ROTAN standard coupling is used the pump and the motor are aligned as described in the following section Other couplings are fitted and aligned in accordance with the coupling supplier s instructions refer to these DESMI A S 23 Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 ed Fax 45 98 17 54 99 RA ROTAN E mail desm
44. e hours at 70 C Pump size Ball bearing type 26133 6302 2RS1 10 000 hours 16 bar 6304 2RS1 27 000 hours 16 bar 41 6304 2RS1 12 000 hours 16 bar 6305 2RS1 18 000 hours 16 bar 51166 6306 2RS1 8 000 hours 16 bar 6307 2RS1 8 000 hours 16 bar GP 81 6308 2RS1 7 000 hours 16 bar HD 6310 2RS1 9 000 hours 16 bar PD Y 6308 2RS1 25 000 hours 10 bar CD 6310 2RS1 36 000 hours 10 bar 126 6310 2RS1 30 000 hours 10 bar 6312 2RS1 32 000 hours 10 bar 151 6310 2RS1 12 000 hours 10 bar 6312 2RS1 11 000 hours 10 bar 6310 2RS1 4 000 hours 10 bar 152 6314 2RS1 5 000 hours 10 bar 6312 2RS1 9 000 hours 10 bar 201 6315 2RS1 8 000 hours 10 bar Figure 27 Ball bearing types and the minimum service life in hours for the various pump types and sizes The service life is calculated on the basis of a temperature of 70 C and a viscosity of 1000 cSt and based on the maximum operating pressure of the various pump types The bearings service life is reduced at temperatures above 70 C and in ATEX pumps see section above DESMI A S 51 Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 Fax 45 98 17 54 99 E mail desmi desmi com Web www desmi com l ROTAN THE DESMI GROUP DE S M Service life of ball bearings in ROTAN high pressure pumps 1000 cSt Pump type Pump size Ball bearing type llo a 27 34 630
45. e read on the pump s name plate 2 The valve number obtained is contained in the table in Figure 19 if necessary by means of pump type and pump size as stated on the far left of the table 3 Measure the valve s setting value as shown in Figure 19 4 The value can be seen in the table on the basis of the valve number obtained and the operating pressure is read off according to this DESMI A S 38 Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 ed Fax 45 98 17 54 99 RA ROTAN E mail desmi desmi com Web www desmi com THE DESMI GROUP DESMI e Q pa MAS 2 4 6 8 10 12 14 16 3891 3931 5665 12 8 HD GP ED 2286 2287 5666 14 13 115 10 26 33 41 3656 3657 5667 ead ag ae ene 7500 7502 7505 7514 We 94 CD PD ED 7348 7499 26 33 41 7506 7515 CN NE 0 7501 7503 7507 7516 MD rime NE 3865 5669 225 12 5 Ue ML 2288 5308 255 19 5 135 3658 5518 245 22 195 165 14 3407 275 20 5 13 S DEN 4377 215 175 135 3943 19 5 16 13 10 3628 5670 11 0 HD GP PD ED 1969 5309 125 6 81 101 3654 5387 14 105 65 3727 5671 145 12 95 4378 245 7 CD ED 3448 28 5 20 5 12 5 81 101 4379 287 248 21 174 4380 23 204 1377 15 HD PD ED 2290 5310 415 30 19 126 151 3276 5672 34 28 22 CD ED 4680 40 27 14 126 151 5
46. e with either customer instructions or DESMI s default setting If the valve has been set in accordance with customer instructions this setting must correspond with the other instructions included in this user manual in the section entitled Safety valves If the setting is DESMI s default setting this has been made on the basis of the table entitled Figure 19 All settings of the regulating screw must be made on the basis of the table entitled Figure 19 or by pressure gauge The default setting of the valve has been made as follows 1 The valve has a number and this number can be seen on the pump s name plate 2 The valve number found is contained in the table entitled Figure 19 if necessary by means of pump type and pump size as stated on the far left of the table 3 Next to the valve number there are several different setting measurements The setting value corresponding to the maximum operating pressure in the table is the one selected Example HD26 Valve no 3891 E max operating pressure 4 bar E A value 8 mm The default setting in the factory is always based on the maximum operating pressure stated in the table in Figure 19 In the case of valves that have been set in accordance with customer instructions you can identify the operating pressure to which the valve has been set as follows The operating pressure to which the valve has been set 1 The valve has a number and this number can b
47. eans of Types HD CD PD Adjusting screws pos CT bearing covers pos CS CR Type GP Adjusting screws pos KX KY muff coupling pos DB Type ED Adjusting screws pos E NM front cover pos AA Type CC Adjusting screws pos E NM front cover pos AA or Adjusting screws pos E front cover pos AA shim ring s pos AS See the position numbers in the section entitled Spare parts drawings Spare parts list In the case of pumps installed in a pipe system the axial clearance is set by turning the pump s adjusting screws to a given angle The angle is defined as follows 1 The axial clearance can be seen in the table in Figure 33 2 Find measure the size of the adjusting screws for pump type 3 Based on the size of the adjusting screws read off the adjusting screws pitch Figure 35 4 Insert the figures obtained in the formula Figure 35 5 Tum the adjusting screws in pairs to the angle obtained to ensure balanced installation See the setting procedure in the table in Figure 37 If necessary see Figure 36 which shows the angle for a single surface on the hexagonal bolt head Axial clearance Pump size 26 33 41 51 66 81 101 126 151 Normal axial 0 10 0 10 0 15 0 20 0 30 0 35 0 40 clearance 0 125 0 15 0 20 0 25 0 375 0 45 0 50 Pumps with 0 20 0 20 0 30 0 40 0 60 0 70 0 80 spec tolerances 0 25 0 30 0 40 0 50 0 75 0 90 1 0 Figure 32 The axial clearance for the various pump sizes f
48. earing slide bearing Types CD PD Idler bearing pos AD main bearing pos BC Main bearing slide bearing Type GP Idler bearing pos AD main bearing Main bearing soft shaft seal or ball bearing Type ED Idler bearing pos AD main bearing pos PS Main bearing slide bearing Type CC Idler bearing pos AD Main bearing none The idler bearing is however not fitted to pump sizes 26 33 where the idler is made of bronze or cast iron The idler is instead fitted with a plate so that the idler idler pin can be lubricated If the pump liquid itself has a lubricating effect or is of sufficiently high viscosity the bearings are lubricated by the pump liquid otherwise the bearings must be lubricated via the lubrication nipple If the pump is supplied with a idler bearing and a main bearing for external lubrication the pump designation will include an M see the pump s name plate if not there is a U in the place indicated Example HD51BCHD 1M22BS The bearings must be lubricated in accordance with the table in Figure 30 but the re lubrication intervals and grease volumes are only guidelines as the re lubrication interval in particular is largely dependant on the conditions Obtain further information from the supplier The bearings must be lubricated with Rubens WB Q8 or equivalent DESMI A S 53 Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 ed a Fax 45 98 17 54 9
49. f the temperature sensor has not broken off during transportation handling or installation if the pump is fitted with temperature sensor That the temperature sensor is connected That all isolating valves in the suction and pressure pipe are fully open to avoid the pressure being too high and the pump running dry That any safety valve is fitted correctly see section entitled Positioning the valve That any safety valve is adjusted to the correct opening pressure see section entitled Setting the safety valve That the pump casing is filled with liquid to ensure the ability to self prime see section entitled Before connecting the pipe That there is no coagulated liquid in the pump or the pipe system after the last operation that may cause blockage or breakdown That the necessary monitoring and safety systems are connected and adjusted according to the operating conditions 11 1 Before starting after preservation If the pump has been in storage for a long period of time you must also check the following Before starting after preservation check That the pump is not corroded or dried out see section entitled Storage and protection of pump That slide bearings and the shaft seal s sliding surfaces are not dry This check is performed by turning the pump shaft gently That any preservative or anti frost liquid is cleaned off before starting the pump
50. for pumps ordered for use in a potentially explosive environment EEx II 2GD c and where this is stated on the pump s name plate The ATEX documentation is registered by the authorised institution Physikalisch Technische Bundesanstalt PTB Postfach 33 45 38023 Braunschweig PTB registration number 03ATEX D052 Harmonised standards other standards DS EN 292 1 2 DS EN 294 DS EN 809 DS EN 12162 DS EN 13463 1 PrEN 13463 5 DS EN 1127 1 Machine safety Basic concepts general principles for planning construction and design Machine safety Hazardous areas and safety distances Protection of hands and arms Joint safety requirements Pumps and pump units for liquids Liquid pumps Safty requirements Procedure for hydrostatic testing Non electric equipment for use in explosive atmospheres Part 1 Basic methods and requirements Non electrical equipment intended for use in potentially explosive atmospheres Part 5 Protection by constructional safety Machine safety Explosive atmospheres Prevention of and protection against explosion Part 1 Basic concepts and methodology DS EN 13463 1 prEn 13463 5 DS EN 1127 1 are only observed by ATEX pumps EC Component Declaration valid for ROTAN pumps supplied without a motor Machine Directive 98 37 EC Implementing Order no 561 Annex II B The above manufacturer hereby declares that the product in question has been produced in accordance with the specified E
51. gligence that may lead to the danger of explosion DESMI A S 74 Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 ed Fax 45 98 17 54 99 Ba ROTAN E mail desmi desmi com Web www desmi com THE DESMI GROUP DE S M 27 The maintenance process 27 1 The service life of ball bearings The ball bearings in the bearing bracket position designation CU in 23 1 Spare parts drawings by the free shaft end are all model 63 deep groove ball bearings fitted with two rubber seal rings DESMI fills the bearings with a suitable amount of grease meaning that any re lubrication is unnecessary The same applies for ball bearings located in the rear cover position designation BC in 23 1 Spare parts drawings with the exception of type HD 201 where the ball bearing used is not fitted with seal rings and re lubrication is therefore necessary The service life is halved for every 15 C increase in temperature over 70 C The service life of the ball bearings is further increased to 90 for ATEX pumps see section 17 2 2 Service life ball bearings 27 2 Inspection During daily inspection check That the pump is not vibrating or emitting a jarring sound That lubricated slide bearings are lubricated and that there is liquid by the slide bearings lubricated by the liquid That any circulation pipes cooling heating pressurised water pipes are in working order That the operating conditions are being observe
52. he pump s pressure line the pump or pressure line must be fitted with a safety valve Please note that certain liquids properties can block the safety valve s function e g paint chocolate asphalt etc In such cases you must use another equivalent safety device rather than a ROTAN safety valve valve and prevent it from working you must use another equivalent safety device If liquids have particular properties or have been heated and may block the safety rather than a ROTAN safety valve As it would be too wide ranging to mention all liquids that may be used in this user manual we would ask you to contact DESMI in the event of any doubt or if you wish to use the pump to pump anything that was not specified when placing the order If you wish to have the pump supplied without a safety valve another equivalent safety device must be used so that you can still ensure that the pump cannot generate a pressure that is higher than the maximum specified when the order is placed Pumps without a safety valve must use another equivalent safety device If a pump is supplied without a safety valve it will be fitted with a blind cover so that the pump is ready for a valve to be fitted later if required The safety valve is also fitted with a bore for the coupling of a manometer or a possible bypass to the suction container The bore is covered by a pipe plug DESMI A S 35 Tagholm 1 DK 9400 N rresundby Denmark Tel 4
53. hen assembling and dismantling the pump and pump parts in potentially explosive atmospheres Pumps that are sent to DESMI for repair must have been emptied and cleaned before our factory can accept them and the pumps must be accompanied b information about the pump liquid used Cleaning and emptying of the pump must be undertaken with due regard to the safety of our repair engineers We would point out that certain liquids coagulate and harden before arrival at our factory which makes any repairs fully or partly impossible if the pump has not been emptied and cleaned before shipment In such cases inadequate emptying and cleaning will generate increased repair costs or in the worst case mean that the pump has to be scrapped ROTAN pumps must be emptied and cleaned in accordance with the instructions in the section entitled Emptying and cleaning the pump please read it 21 1 Setting of temperature sensor If the temperature sensor has been dismantled during repair it has to be set again when reassambling the pump 1 Apply heat conducting paste to the tip of the sensor in order to secure good heat transmission 2 Screw in the sensor till the bottom is reached 3 Now unscrew the sensor approx 7 of a turn DESMI A S 58 Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 ed Fax 45 98 17 54 99 RA ROTAN E mail desmi desmi com Web www desmi com THE DESMI GROUP DE S M 21 2
54. however depend on the individual pump application DESMI A S 46 Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 ed Fax 45 98 17 54 99 Aa ROTAN E mail desmi desmi com Web www desmi com THE DESMI GROUP DE S M OT qe N a 17 1 1 Repacking soft shaft seal Pull the packing gland back on the shaft once the screws have been removed The packing rings can now be pulled out using a packing extractor Check the shaft and the shaft seal housing thoroughly for wear scratches and deposits Replace worn parts and remove deposits with care Always conduct a control measurement of the shaft and the shaft seal housing before specifying the packing dimension Never use old packing rings when measuring The packing dimension is defined on the basis of the following Shaft seal housing E Shaft Figure 25 The A and B dimensions on the shaft and the shaft seal housing The A and B dimensions obtained are inserted in the following formula to determine the packing dimension A B 2 packing dimension New packing rings are bought as spare parts or produced as described in step 7 Trim the new packing rings on the shaft or a mandrel of the same diameter as the shaft Wrap the packing around the shaft mandrel the number of times that packing rings are to be used and cut through with a sharp knife 8 Ifthe packing rings are difficult to move into position they can be rolled with a pipe or si
55. i desmi com Web www desmi com THE DESMI GROUP DE S M 10 2 1 Aligning the motor and the pump If a ROTAN standard coupling is used the motor and the pump are aligned as follows Other couplings are aligned in accordance with the coupling supplier s instructions with regard to the maximum permitted tolerances for eccentricity and non parallelism 1 Check the centring between the pump shaft and the motor shaft by means of a straightedge Place the straightedge over the two coupling pieces on the circumference 90 apart Any misalignment will become evident in the form of a gap of light between the straightedge and the coupling hub 2 Centring may deviate by a maximum of 0 05 mm when both halves of the coupling rotate 3 Check the parallelism gap between the halves of the coupling using an air gap gauge The gap may be a maximum of 0 5 or when both halves rotate the gap deviation may not exceed 0 05 mm on the same point 4 Alignment is corrected by inserting suitable intermediate layer of material between the pump s or the motor s base and base frame Insufficient alignment between pump and motor causes increased wear on the coupling elements 10 3 Axial clearance Set the axial clearance to prevent heat generation and the subsequent risk of explosion After coupling and alignment between motor and pump has been completed the pump s axial clearance must be set correctly see section entitled Setting the ax
56. ial clearance The axial clearance does not have to be set for pumps purchased with a motor as this is set in the factory DESMI A S 24 Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 ed Fax 45 98 17 54 99 Ba ROTAN E mail desmi desmi com Web www desmi com THE DESMI GROUP DE S M 10 4 Horizontal vertical positioning of the pump ROTAN pumps can be positioned horizontally or vertically 10 4 1 Horizontal positioning of the pump The standard position is for the pump to be horizontal to the foundation i e with a horizontal pump shaft and the valve blank flange on top The pump must not be positioned with the suction port facing down as the pump would then lose seal liquid and thereby its suction canisteracity 10 4 2 Vertical positioning of the pum Position and fit vertical pumps as described below to avoid dry running and the x subsequent risk of explosion in EEx pumps A ROTAN pump should as a rule not be positioned vertically i e with a vertical pump shaft and the motor on top A pump may only be positioned vertically if it has been specially produced for this purpose at the factory If a pump is positioned vertically it must be placed at the lowest point in the pipe system so that it retains its suction canisteracity dry running is not permitted DESMI A S 25 Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 ed Fax 45 98 17 54 99 Ba ROTAN
57. if these are not compatible with the pump liquid That elastomers are replaced if they have been damaged by the anti frost liquid used That ball bearings and any elastomers are replaced if the pump has been in storage for more than 6 years as the lubricating grease used for elastomers and ball bearings has a limited service life DESMI A S 32 Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 ed a Fax 45 98 17 54 99 Dan ROTAN E mail desmi desmi com Web www desmi com THE DESMI GROUP DE S M 12 After starting the pump R OTAN pumps may only run without liquid flow for the short period required for self priming with regard to the slide bearings and shaft seals After starting the pump check That the pump is drawing the liquid That the speed is correct That the direction of rotation is correct Viewed from the motor side liquid is pumped to the left when the shaft rotates clockwise That the pump is not vibrating or emitting a jarring sound That the stuffing box and bearings are not becoming hot If the pump has been fitted with lip seals these will normally cause the shaft to heat up during the ring s running in period which lasts approx 2 hours That there are no leaks by the pump That the mechanical shaft seal is fully sealed Stuffing boxes with packing rings may however permitted a low level of leakage 10 100 drops of leakage
58. ing MF Bolt NZ Draining plug MG Bolt MJ Canister MK Inner magnet ML Bolt MM Outer magnet MN Washer DESMI A S 70 DK 8400 Narresundby Denmark HE 4 ROTAN E mail desmi desmi com Web www desmi com THE DESMI GROUP DE S M 25 Technical specifications Because of the ROTAN pump s large number of possible combinations and the many pump liquids used the following values should be viewed as guideline maximum values as an individual ROTAN pump may have further limitations due to the pump liquid the shaft seal selected and in particular the motor selected If the pump was bought outside Denmark we refer to the relevant agent The technical specifications of the motor are contained in the manual supplied by the motor manufacturer 25 1 Canisteracity Pump type Canisteracity GP Maximum 50 m h ED Maximum 90 m h HD PD CD Maximum170 m h CC Maximum 6 8 m h Figure 38 The maximum canisteracity in m h for the various pump types 25 2 Speed 26 33 41 Maximum 1 750 rpm 51 66 Maximum 1 450 rpm 81 Maximum 1 200 rom 101 Maximum 950 rpm 126 Maximum 750 rpm 151 Maximum 600 rpm 152 Maximum 500 rpm 201 Maximum 400 rpm Figure 39 The maximum speed in rpm for the various pump sizes for pump liquids with a viscosity of less than 400 cSt For higher viscosities the speed should be reduced to avoid cavitation This table is valid for all pump types GP HD PD CD ED
59. ion If itis possible to block the pump s pressure line the pump or pressure line must be fitted with a safety valve Motors fitted with lifting eyes must not be used to lift the whole pump only to lift the motor separately The pump must be lifted in accordance with the instructions contained in this user manual see section entitled Lifting the pump If the pump s weight is more than the permitted number of kilos that people may lift it must be lifted mechanically see section entitled Lifting the pump It is forbidden to remain in the pump s working area without cause during operation Emergency exits in the pump s work location must not be blocked The emergency stop must be positioned in close proximity to the pump see section entitled Emergency stop The pump must be screened when pumping liquids at high temperatures see section entitled Pump liquids Warning signs must be displayed The pump must not be used to pump liquids at temperatures above those listed in the table under Hot liquids see section entitled Hot liquids DESMI A S 12 Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 ed Fax 45 98 17 54 99 Ba ROTAN E mail desmi desmi com Web www desmi com THE DESMI GROUP DE S M Protective screens must not be removed when the pump is in operation Protective gloves must be used when adjusting axial clearance if liquids at high or low temperatures
60. iscosity liquids and liquids which tend to solidify This jacket is also used as a seal cooling jacket CHD Combination of special clearances and heating jackets together with external lubrication of the main bearing used in the chocolate industry DESMI A S Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 Fax 45 98 17 54 99 E mail desmi desmi com Web www desmi com l ROTAN 17 THE DESMI GROUP MM R Safety valve single acting lone direction used to protect the pump and the complete installation against excessive pressures Special configurations Example Mounting of a cartridge seal single or double is semi standard Lubrication Idler bearing and main bearing externally lubricated Used when pumping non lubricating or high viscosity fluids Figure 6 The codes of the various pump versions together with an explanation of what they mean T Transporting the pump The pump must be secured properly on pallets or similar before transport and shipment The pump must be transported with the usual degree of consideration to avoid exposing it to impact and pressure 8 Lifting the pump If the pump s weight is more than the permitted number of kilos that people may lift in accordance with the prevailing national rules at the location it must be lifted mechanically We refer to the prevailing national rules at the location The table below
61. ith clean hot water then empty it and dry it The pump must not be left with damp surfaces on the inside 3 Spray on an anti corrosion oil such as Q8 Ravel D EX Mobilarma 777 or equivalent It is also possible to use acid free oil such as hydraulic oil Pumps fitted with EPDM rubber seals do not tolerate mineral oil based oils and certain food oils As an alternative in this instance you can use silicon oil or a fire resistant type of polyglycol based hydraulic oil This can be applied by spraying in through both the inlet and outlet ports if necessary by means of compressed air 4 For pumps intended for integration in an existing pipe system the anti corrosion oil can be sprayed in through the manometer holes in the inlet and outlet ports or through the bore that has been provided to connect a manometer 5 Fill the pump with sufficient oil for the oil to start running out of the pump 6 Then rotate the pump manually so that all internal surfaces are lubricated 7 This process must be repeated every six months 9 3 Frost protection Pumps that are out of operation during periods of frost must be emptied of liquid to avoid frost damage You can use anti frost liquids but you must make sure that the elastomers used in the pump will not be damaged by the liquid used DESMI A S 22 Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 ed Fax 45 98 17 54 99 Ba ROTAN E mail desmi desmi com Web www
62. m Web www desmi com THE DESMI GROUP DE S M 4 Close the valves on the suction side and the pressure side if the system is equipped with these so that the system is unpressurised 5 Place a collecting tank under the pump with the canisteracity to take the volume of liquid contained in the part of the system to be emptied 6 Remove the front cover and the heating jacket 7 Remove the pump and place it with the ports pointing up down and then rotate the shaft manually to empty Please note that the drainage time is longer for highly viscous liquids as these find it difficult to make their way from the stuffing box house through the chamber between the rotor and the rear cover to the pump casing Some special versions of the pump are fitted with one or more draining plugs to facilitate the drainage of highly viscous liquids 20 Removal of liquid The safety data sheet for the liquid used must be obtained and the liquid must be removed in accordance with the safety data sheet s instructions Please refer to the relevant liquid s safety data sheet The safety instructions in the data sheet for the liquid in question must be observed and the safety equipment specified must be used DESMI A S 57 Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 ed a Fax 45 98 17 54 99 Aa ROTAN E mail desmi desmi com Web www desmi com THE DESMI GROUP DE S M 21 Repairs Use spark free tools w
63. m Internal diameter in inches 26 25 1 33 32 11 4 41 40 11 2 51 50 2 66 65 21 2 81 80 3 101 100 4 126 125 5 151 150 6 152 150 6 201 200 8 Figure 3 A list of pump sizes based on the internal diameter of the pump s inlet outlet in inches and millimetres Pump sizes 151 and 152 are pumps of two different sizes but with the same size inlet outlet The various pump types are available in the pump sizes listed in Figure 4 Pump types sizes Pump types GP HD PD CD Pump size 101 126 151 152 201 Figure 4 A list of the various pump sizes together with the pump types available in the various pump sizes Fields that are shaded grey indicate the sizes available in the pump types listed The pump s inlet outlet can be supplied with internal threads or flanges All pump types and pump sizes can be supplied with flanges to match connecting objects The pump is supplied with an internal thread in the pump types and pump sizes listed in Figure 5 DESMI A S 9 Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 ed Fax 45 98 17 54 99 BAK ROTAN E mail desmi desmi com Web www desmi com THE DESMI GROUP DE S M Pumps with internal thread Pump types ED stainless cast iron 101 126 151 152 201 Figure 5 A list of the various pump si
64. mable toxic corrosive or hazardous in any other way or if the liquid has a temperature of more than 60 C special safety measures must be implemented before the pump is emptied The liquid s safety data sheet must be obtained and read before emptying the pump Please refer to the relevant liquid s safety data sheet Observe the safety instructions in the data sheet for the liquid in question and use the specified safety equipment in the form of protective clothing a breathing mask or similar necessary safety equipment Use suitable safety equipment with pump liquids at temperatures of more than 60 C When pumping hazardous liquids circulate neutralising liquid before emptying the pump The system must be unpressurised before emptying the pump Use spark free tools when removing the front cover dismantling the pump in potentially explosive atmospheres H gt bb e gt When pumping hazardous liquids circulate a liquid that has a neutralising effect in relation to the pump liquid We recommend the use of thin neutralising liquids to facilitate drainage 2 Empty the pipe system Note that there is still liquid in the bottom of the pump casing and in the shaft seal housing even if the pipe system is empty and in the case of the ED pump there will also be liquid in the magnetic coupling s canister 3 Stop the unit DESMI A S 56 Tagholm 1 DK 9400 N rresundby Denmark Dr 4 ROTAN E mail desmi desmi co
65. milar item DESMI A S 47 Tagholm 1 DK 9400 N rresundby Denmark A Tel 45 96 32 81 11 A Fax 45 98 17 54 99 Rar ROTAN E mail desmi desmi com Web www desmi com THE DESMI GROUP DE S M Never strike a gasket as the fibres in the material will be destroyed and the sealing property will be significantly worsened 9 Lubricate the individual rings with a little oil to facilitate installation 10 Turn the ring openings so that the two rings lying alongside one another are diametrically offset 11 Finally tighten the packing gland gently by hand and restart the pump 17 2 Ball bearings The pump is fitted with a ball bearing pos CU at the pump s free shaft end Some pumps are fitted with two ball bearings pos CU BC see the position numbers on the spare part drawings ED pumps are fitted with two ball bearings pos NB on pumps with a free shaft end All bearings are model 63 deep groove ball bearings fitted with two rubber seal rings no seal rings or one single seal ring 17 2 1 Lubricating ball bearings Ball bearings must be lubricated to ensure explosion protection Ball bearings must be lubricated with heat resistant grease when pumping liquids over 100 C to guarantee explosion protection Ball bearings must be lubricated with heat resistant grease when pumping liquids over 100 C gt Ep E gt Ball bearings with two seal rings do not require re lubrication as
66. nd the rotor idler and the play can thus not be set correctly 7T Tighten the front cover until the air gap Worn items must then be replaced before gauge becomes jammed resetting the axial clearance 8 Measure the distance between the pump 6 Measure the distance between the pump casing pos A and the front cover pos casing pos A and the front cover pos AA AA 9 The figure obtained is the thickness of the 7 The pump s axial clearance can be seen in new shim ring the table in Figure 10 Obtain the shim ring s pos AS and fit as 33 described above 8 The two figures obtained together define 11 When adjustment is complete make sure the thickness of the new shim that the pump shaft turns easily and ring regularly and that no jarring noises can be 9 Obtain the shim ring s pos AS and fit as heard described above 10 When adjustment is complete make sure that the pump shaft turns easily and regularly and that no jarring noises can be heard DESMI A S 62 Tagholm 1 DK 9400 N rresundby Denmark Dr 4 ROTAN E mail desmi desmi com Web www desmi com THE DESMI GROUP DE S M Non installed installed pump Type ED CC with set screws 1 Loosen set screws pos NM 2 Tighten adjusting screws pos E until the front cover is positioned against the rotor idler 3 Check that the pump shaft cannot turn 4 Ifthe pump shaft can turn this is because the front cover and or rotor idler are worn and
67. nfiguration options Sealing with stuffing box with or without lantern ring for use of external lubrication Used for high viscosities and where leakages are allowed M GP HD Sealing with mechanical shaft seal DIN 24960 KU combined with a ball bearing as main bearing Used where only minor leakage is allowed M PD CD Sealing with mechanical shaft seal DIN 24960 KU combined with a slide bearing as main bearing Used where only minor leakage is allowed WT mas MM tandem MMP back to back Double mechanical shaft seals DIN 24960 KU in tandem or back to back with main bearing in the barrier fluid Used where no leakages are allowed Up to 90 PSI differential pressure allowed MMW tandem MMPW back to back Double mechanical shaft seals DIN 24960 KU in tandem or back to back with main bearing in the liquid Used where no leakages are allowed UP to 250 PSI differential pressure allowed Special clearances increase of tolerances used for liquids with a viscosity above 7 500 cSt Ora temperature above 300 F reme Ec NET EA AES Br N NS Pk ud 1 I A zl j es Heating jacket on the front cover often required prior to start up when pumping high viscosity liquids and liquids which tend to solidify Heating jacket on the rear cover often required prior to start up when pumping high v
68. ng protection if necessary If necessary display a sign stating that hearing protection must be worn 16 Storing the user manual This user manual must be retained throughout the pump s full service life and must always accompany the pump The user manual must be available to operators repair engineers and any maintenance staff or other people who may be considered to have a need to refer to it The user manual must also be stored visible in the immediate vicinity of the pump If this is not possible there must be a prominent sign by the pump stating where the user manual is kept It is also recommended that a copy of the user manual is stored somewhere else If people who are expected to have a need to refer to the user manual are of a different linguistic origin than the language in which the user manual has been legally supplied it is recommended that the user manual is translated into the language in question 17 Maintenance The pump must be inspected and maintained on an ongoing basis in accordance with the schedule below Figure 23 Compliance with regular maintenance in accordance with the schedule below is particularly important for explosion proof pumps ATEX as inspection and maintenance of the pump constitutes a part of the explosion protection Observe the inspection and maintenance instructions contained in this manual to 2 achieve explosion protection for EEx labelled pumps DESMI A S 44 Tagholm 1
69. nsert an air gap gauge between the front cover and the rotor idler Push the shaft towards the front cover until the air gap gauge becomes jammed Tighten the bolts in pairs so that the bearing covers do not force the ball bearing to one side When adjustment is complete make sure that the pump shaft turns easily and regularly and that no jarring noises can be heard gc Loosen bearing cover pos CS Tighten bearing cover pos CR Loosen bearing cover pos CR in accordance with the number of degrees obtained in the formula Figure 35 Tighten bearing cover pos CS Tighten the bolts in pairs so that the bearing covers do not force the ball bearing to one side When adjustment is complete make sure that the pump shaft turns easily and regularly and that no jarring noises can be heard Type CC with shim rings Type CC with shim rings 1 Remove set screws pos E 1 Remove set screws pos E 2 Remove front cover pos AA 2 Remove front cover pos AA 3 Remove shim ring s pos AS 3 Remove shim ring s pos AS 4 Loosely attach front cover and set screws 4 Re attach the front cover and set screws 5 The pump s axial clearance can be seen in and screw the front cover to the idler the table in Figure 5 Check that the pump shaft cannot turn 33 If the pump shaft can turn this is because 6 Insert an air gap gauge between the front the front cover and or rotor idler are worn cover a
70. or normal pumps and pumps with special tolerances respectively This table applies to pump types HD CD PD GP CC and ED Pumps made of stainless steel are set with 0 10 mm more play than specified DESMI A S 60 Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 ed a Fax 45 98 17 54 99 Aa ROTAN E mail desmi desmi com Web www desmi com THE DESMI GROUP DE S M Pumps with special tolerances are identified by the inclusion of a T or CHD in the designation Example HD CD41EFCHD 1M22B or GP101EDT 1U22B see also section entitled Pump versions Pitch adjusting screws Adjusting M5 M6 Ms M10 screws Pitch 0 8 1 0 1 25 1 5 1 75 Figure 33 The pitch for the specified thread for adjusting screws pos CT KX KY E and NM for pump types HD CD PD GP CC and ED Axial clearance x 360 Angle in Pitch Figure 34 The formula to be used to obtain the adjusting screws angle in Figure 35 The size of the angle for a single surface on the hexagonal bolt head on the adjusting screws DESMI A S 61 Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 ed a Fax 45 98 17 54 99 Dan ROTAN E mail desmi desmi com Web www desmi com THE DESMI GROUP DESMI Types HD CD PD Types HD CD PD Loosen bearing covers pos CS CR so that the shaft can be pushed axially The pump s axial clearance is obtained from the table in Figure 33 I
71. paint lacquer molasses soap and similar liquids Used for processes in process industry Typical applications lubricating oil petrol lubricants and other hydrocarbons Used for processes in refineries and the petrochemical industry To pump corrosive liquids Typical applications organic acids fatty acids alkalis caustic soda polymer solutions soap CD Chemical Duty shampoo animal fat vegetable fat chocolate and other special liquids Used for processes in chemical industry food industry and the cosmetic industry Used to pump all the above liquids ED pumps are particularly environment friendly and provide a 10096 guarantee against liquid or air leakage Particularly for pumping oil products Used for processes in engineering industry PD Petrochemical Duty ED Environmental Duty CC Closed Coupled Figure 2 A list of the various pump types their designation and application Pump sizes The ROTAN pump is supplied in various pump sizes The pump size is defined on the basis of the pump s inlet outlet By measuring the internal diameter of the pump s inlet outlet you can find the pump size in the table below DESMI A S 8 Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 ed a Fax 45 98 17 54 99 Aa ROTAN E mail desmi desmi com Web www desmi com THE DESMI GROUP DE S M Pump sizes Pump sizes Nominal diameter in m
72. pe plug CR Bearing cover AU O ring CS Bearing cover BA Rear cover CT Bolt BB Packing gland bearing cover CU Ball bearing BC Main bearing bush CV Stud bolt Ball bearing CW Heating jacket BD Stud bolt bolt CX Nut BE Nut CY Retaining flange BF Washer DA Motor bracket BG Pipe plug lubrication nipple DB Coupling BH Bolt pipe plug DC Threaded screw BJ Bolt DD Threaded screw DESMI A S 68 Tagholm 1 DK 9400 N rresundby Denmark Dr 4 ROTAN E mail desmi desmi com Web www desmi com THE DESMI GROUP BL Priming pin EF O ring DESMI DESMI A S Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 Fax 45 98 17 54 99 E mail desmi desmi com Web www desmi com l ROTAN 69 DESMI THE DESMI GROUP Pos Designation Pos Designation EG Seal ring MP Bolt EJ Bolt MQ Bolt GA Valve MR Lock ring GB Key MS Key GC Adjusting screw MT Seal ring GD Nut MU Connecting flange GE Canister MV Complete ball bearing GF Gasket MW Spacer ring GG Pressure plate MX Bolt GH Pressure plate MY Cylindrical pin GJ Valve cover MZ O ring GK Valve casing NA O ring GM Pipe plug NB Ball bearing GN Gasket NC Temperature sensor GQ Bolt ND Bearing cover GR Washer NE Shaft HD Shield NF Cover HE Bolt NG Disc spring JL Gasket NJ Bolt KX Bolt NK O ring KY Bolt NM Set screw LT Washer NN O ring MA O ring NP O ring MB Pipe plug NQ Key MC O ring NS Intermediate piece MD Roll pin NT Thread fitting ME Bolt NU O r
73. per minute see section entitled Adjusting the soft shaft seal That the operating pressure is correct That the safety valve opens at the correct pressure That the pressure in the heating jacket does not exceed 10 bar if the pump has one That the magnetic clutch type ED is not slipping and thus causing an inadequate flow and that the temperature in the magnetic clutch does not exceed the permissible value That the power consumption is correct That all monitoring equipment is in full working order That any pressurised water pipes heating cooling systems and lubricating systems etc are operating and in full working order Running in the soft shaft seal see section entitled Running in the soft shaft seal DESMI A S 33 Ta gholm 1 DK 9400 N rresundby Denmark Te Fa l 45 96 32 81 11 ed x 45 98 17 54 99 BAK ROTAN E mail desmi desmi com Web www desmi com THE DESMI GROUP DE S M 12 1 Running in the soft shaft seal when starting the pum A A soft shaft seal may only be used on pumps in potentially explosive environments if the soft shaft seal is equipped with thermal sensors to control the temperature When starting a new pump the shaft seal must be run in as described below 6 Once the pump has started the shaft seal must leak more than 200 drops per minute to saturate the rings When the shaft seal is saturated
74. ration through the heat generated by the magnets depending on the liquid s flow rate and viscosity The temperature increases up to 30 C The ED pump may not be used to pump liquids at a temperature that is higher than the liquid s ignition temperature and with reference to the maximum temperatures specified in the table in Figure 20 depending on the magnetic material and no higher than the temperature stated in the table below Figure 21 depending on the type of elastomer used For pumps with a safety valve the maximum temperature is 150 C The lowest temperature identified of the four mentioned above constitutes the maximum temperature The maximum temperature limit identified must be further reduced by the temperature increase generated by the magnets DESMI A S 41 Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 ed Fax 45 98 17 54 99 Ba ROTAN E mail desmi desmi com Web www desmi com THE DESMI GROUP DE S M Maximum liquid temperature Pump type Temperature GP Maximum 150 C HD PD CD Maximum 250 C Maximum 130 C Magnetic material Neodymium Iron Boron ER Maximum 250 C Magnetic material Samarium Cobalt CC Maximum 80 C Figure 20 The pump liquid s maximum permitted temperature for the various pump types For pumps with a safety valve the temperature is limited to a maximum of 150 C due to the valve key However the valve can be supplied with a diffe
75. rculation see section entitled Positioning the valve Fit the safety valve correctly with regard to the desired direction of circulation gt 10 8 Temperature sensor When installing the pump the temperature sensor has to be set before the pump is started as otherwise there is a risk of explosion Connect and pre set always the temperature sensor before starting up the pump Set the temperature sensor to 80 of the pump s max surface temperature He HB DESMI A S 30 Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 ed a Fax 45 98 17 54 99 Aa ROTAN E mail desmi desmi com Web www desmi com THE DESMI GROUP DE S M 10 9 Emergency stop Fit the pump unit with an emergency stop If the pump is fitted as part of a total system this must be provided with an emergency stop The emergency stop is not included in DESMI s delivery When installing the pump the emergency stop must be Designed set up and installed and function in accordance with the prevailing standards and directives Positioned within easy reach so that it is accessible to the operator engineer during repairs adjustment and maintenance of the pump Be tested regularly to check that it is in full working order 10 10 Electrical couplin Electrical couplings must always be established by authorised professionals in accordance with the prevailing standards and directives AN Set the protective mo
76. rent key enabling the pump s temperature range to be fully utilised The ED pump s maximum temperature depends on factors such as the magnetic material Pump types HD CD and PD produced in versions with special tolerances can in some cases be used up to 300 C Minimum maximum elastomer temperature Elastomer type Elastomer brand Temperature FPM Viton Approx 25 C 170 C FEP Teflon with Viton core Approx 60 C 205 C EPDM Ethylene propylene Approx 65 C 120 C FFKM Kalrez Approx 50 C 316 C NBR Nitril Approx 30 C 70 C PTFE Teflon Approx 15 C 170 C Figure 21 The pump liquid s minimum maximum temperature limits for the various elastomers used in ROTAN pumps Maximum 135 C in water gr Extra shielding may be purchased from DESMI 14 2 Foods ROTAN pumps must not be used to pump foods requiring FDA or 3A approval DESMI A S 42 Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 ed a Fax 45 98 17 54 99 Dan ROTAN E mail desmi desmi com Web www desmi com THE DESMI GROUP DE S M 15 Noise The noise level of ROTAN pumps depends on various parameters The different parameters that can influence the sound pressure level are differential pressure viscosity installation conditions pump size and flow The curves shown in Figure 22 denote standard units with ROTAN pumps A weighted sound pressure levels in rela
77. st free non aggressive atmosphere 9 1 Storage When stored for a longer period of time the pump must be inspected after no more than six months depending on the storage conditions The pump shaft must however be turned manually approx every 4 weeks to avoid standstill damages to bearings and seals Avoid storage in an environment containing chloride on foundations with continuous vibrations as the bearings might be damaged in unventilated rooms Recommended storage indoors in a dry dust free non aggressive atmosphere in a well ventilated room to prevent condensation flanges and pipe couplings closed using plastic plugs pump packed if necessary in plastic film and with moisture absorbing Silica Gel bags DESMI A S 21 Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 ed a Fax 45 98 17 54 99 Dan ROTAN E mail desmi desmi com Web www desmi com THE DESMI GROUP DE S M 9 2 Preservation procedure Make sure that the pump does not corrode or dry out as drying out between the sliding surfaces of the bearings can cause them to become damaged when the pump is put into operation Preservation of the pump is necessary on untreated surfaces both external and internal Rustproof surfaces do not require any special protection 1 Ifthe pump has been in operation it must be emptied see section entitled Emptying and cleaning the pump 2 Rinse the pump w
78. sufficient lubrication by the slide bearing Under no circumstances may the slide bearing run out of lubricant See section 17 3 5 The ignition temperature of cooling heating liquid used must be at least 50 K above the maximum surface temperature of the pump 6 Blocking the liquid flow by the pressure side is not permitted Blocking the liquid flow causes rapid pressure increase and generates heat inside the pump which is transferred to the pump surface 7 The pump must be set up and secured firmly to a stable horizontal base and it must not be subjected to vibration or external disruption when running 8 The ball bearing must be replaced after 90 of its service life see section 17 2 2 Service life ball bearings 26 1 Reservations The pumps are supplied in accordance with the ATEX Directive and associated standards EN 1127 1 DS EN 13463 1 and pr EN 13463 5 DESMI assumes no liability for any personal injury or damage to the pump resulting from any fault blockage or explosion in the pipe system It is the user s responsibility to protect the pipe system It is the user s responsibility to check for any temperature increase by the pump s surface See item 26 under Supplementary requirements for ATEX pumps Observation of regular maintenance is a significant element of the explosion protection process DESMI assumes no liability for any kind of damage explosion caused by inadequate control inspection maintenance or ne
79. tion to pump size and flow RPM 70 75 75 80 80 85 85 90 dB A Lp 95 100 dB A Lw i T I d A Po ES A R GL 7 A 4 i i ZA JANE 100 200 M3 H Figure 22 The maximum A weighted sound pressure level in dB A Lp for the various pump sizes in relation to the pumps flow The range above 85 dB A is also expressed as sound power level Lw The sound pressure curves shown are measured at a distance of 1 metre from the pump s surface and at a height of 1 60 metres above the floor The dB A curves shown are calculated on the basis of measurements taken when pumping mineral oil with a viscosity of 75 cSt at a differential pressure of 5 bar The curves are based on normal industrial use and not on laboratory conditions If people are working by the pump we refer to the prevailing local national laws and regulations on noise limits at the workplace We refer to the prevailing local national laws and regulations on noise limits at the workplace Appropriate noise reduction measures must be implemented in accordance with the aforementioned local national laws and regulations if so required DESMI A S 43 Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 ed Fax 45 98 17 54 99 Aa ROTAN E mail desmi desmi com Web www desmi com THE DESMI GROUP DE S M Use appropriate heari
80. tions contained in this user manual we also refer to the prevailing local national laws and regulations The user is responsible for compliance with these The owner of the pump is responsible for ensuring that everyone who works with the pump has the necessary background In the event that this user manual or other regulations recommend the use of personal protective equipment or limitations on the use of labour and the pump such instructions must be observed The owner or user of the pump must ensure that this manual is updated if there are any modifications to the pump In the event that the pump is transferred to a third party this user manual and the operating conditions defined when the order was submitted must accompany the pump The pump may only be used under the operating conditions specified when the order was placed Any deviation from this requires DESMI s consent DESMI assumes no liability for any personal injury or damage to the pump resulting from a failure to observe the safety regulations or other instructions in this user manual the use of non original spare parts that do not satisfy precisely the same strict quality requirements as original DESMI spare parts any fault blockage or breakdown in the pipe system The owner or user is responsible for protecting the pipe system against faults blockages and explosions DESMI A S 5 Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 ed Fax
81. tor switch Set the protective motor switch maximum to the motor s rated current When installing the pump check That the local mains voltage is the same as stated on the motor s name plate That the motor s direction of rotation corresponds with the desired pump direction When the pump unit is viewed from the motor end and you require the pump direction to the left the motor s rotation must be clockwise 10 11 Monitoring Connect any monitoring and safety systems that are necessary for safe operation Connect and adjust any monitoring and safety systems manometers flowmeters etc according to the operating condition DESMI A S 31 Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 ed Fax 45 98 17 54 99 Dan ROTAN E mail desmi desmi com Web www desmi com THE DESMI GROUP DE S M 11 Before starting the pump Before starting the pump check That the pump shaft can be turned around freely That the pump is connected to an explosion proof motor if the pump is set up in a potentially explosive atmosphere That the pump s and the motor s name plates are labelled with explosion protection That the pump and motor are aligned precisely see section entitled Alignment between motor and pump That the bearings if they have lubrication nipples are lubricated That the ball bearings maximum service life is observed That the thread o
82. tt 59 21 1 1 Checking the axial clearance seseresveeveennnennnennnennnennnrennrennnennnennnennnennnennnennnnnennennnesnnennnensnnnnneeee 59 21 1 2 Setting the axial clearance eee ee eese eee ee sees stent seeren nen eee se eee ennen seven ener sene soa 60 PEN TOER A A Nr ER TEE ESSENSEN SEES SED RE VIV EP REED 64 29 INACIO Spare Prts sinvcsssnsvinvesnicssasancsana OG indeed cier VAM R VU NE 64 23 1 Spare parts drawings ssesse se 64 2d Sp re parts TSU AMM 68 29 Technical Poengene CUR VN NEUEN DA VN IN rU E REGI NN 71 25 1 Canisteracity M EDT es 71 IAS a ene 71 25 3 Operatins PFESSULC siseessciecsseniedsveessseoscadedsoossssosvssscecsossasoousssocdsoosascesabandcosesssassoansesabeusscesseawaseaueass 72 25 4 SUCTION lift M sesse 72 25 5 O 72 DESMI A S 3 DK 9400 Norresundby Denmark B SR ROTAN E mail desmi desmi com Web www desmi com THE DESMI GROUP DE S M 23 6 Temperature scissiscssscccccssonsseosonsvsscsssosssssdaseesss sosbesasdsasescese ss enossoescesdsesaenessossesssssssansesuesessbessseoncdeeaeds 73 26 Supplementary requirements for ATEX pumps e ssssvenssvvensnnvennnnvennnnvennnnvennnnnennnneennenesnnenennnee 74 NO AAA Res sed dne 74 2
83. ump casing DESMI A S 27 Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 ed Fax 45 98 17 54 99 Ba ROTAN E mail desmi desmi com Web www desmi com THE DESMI GROUP DE S M Maximum external force and torque loads Force Torque Pump size Fa F rota M ya M rota Nm Nm 26 190 270 85 125 33 220 310 100 145 41 255 360 115 170 51 295 420 145 210 66 360 510 175 260 81 425 600 215 315 101 505 720 260 385 126 610 870 325 480 151 152 720 1020 385 565 201 930 1320 500 735 Figure 14 The maximum permitted external forces and torque that may be applied to pump flanges for the various pump sizes x y and z are described in Figure 13 The forces F Total in N and torque M Total in Nm are calculated as follows _ dg 2 2 Forotan 3 F FL Tut M coral 4M M M total x y b Z on the condition that the x y and z components cannot all have the maximum value at the same time If the maximum permitted force and torque loads specified cannot be observed compensators must be built into the pipe system When pumping hot liquids the pipes must always be fitted with compensators so that the pipes and the pump are able to expand If you require a ROTAN pump with belt drive the permitted power on the outlet shaft is provided on request DESMI A S 28 Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 ed a Fax
84. zes and pump types supplied with an internal thread Fields that are shaded grey indicate the pump types and pump sizes supplier with an internal thread Heating cooling jackets Rotan pumps can be fitted with a heating jacket or a cooling jacket on the front cover and or the rear cover Heating jackets are used to keep the pump liquid fluid and are often necessary when pumping highly viscous liquids or liquids that tend to coagulate The heating jacket on the rear cover can also be used to heat liquid lubricated shaft seals The jacket can also be used as a cooling jacket for the shaft seal on the rear cover or a cooling jacket to cool the pump liquid on the front cover We recommend that the pump be heated before operation The heating cooling chambers are heated or cooled by connecting a separate circulatory system that circulates heating liquids such as water steam or oil The pressure in the heating chamber on the front cover and the cooling chamber on the rear cover may not exceed 10 bar The liquid in the heating chambers must have an ignition temperature of at least 50 C above the pump s maximum surface temperature EE DESMI A S 10 Tagholm 1 DK 9400 N rresundby Denmark Tel 45 96 32 81 11 ed a Fax 45 98 17 54 99 Aa ROTAN E mail desmi desmi com Web www desmi com THE DESMI GROUP DE S M 2 EC declaration of conformity ROTAN pumps are CE labelled from the factory and supplied with an EC declaration of

ROTAN PUMP

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