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User manual PLP Lobe pumps

1. SINGLE O RING O3 Article numbers aen SSS em mm Deserpion Jeune e2 mes In EE E M T oes eios esse essc et VITON 051 760 000061 051 760 000021 051 760 000022 051 760 000018 EPDM 051 741 000002 051 741 000030 051 741 000033 051 741 000027 7F In O RING VITON 051 760 000002 051 760 000030 051 760 000033 051 760 000027 SEAL SEAT 700 153 005 700 253 005 700 352 005 700 452 005 CE SEAL COVER 700 150 007 700 250 007 700 350 007 700 450 007 CELO ALLEN SCREW 051 000 04 012 5 051 000 05 012 5 051 000 06 016 5 051 000 08 020 5 UP 1 PLP15 and PLP 2 quantity 4 PLP 3 and PLP 4 quantity 6 54 CE PLP 1406 EN 12 User manual Pomac PLP Lobe pump 9 7 7 Double O ring seal type O2 SE dE A B O D OS 8 E SNA NG DR Y f A dl pe AO d Ka NUN NS NN SN NS EIN IR E NE TA DOUBLE O RING O2 Article numbers PLP 1 PLP15 PLP 2 PLP 3 PLP 4 SHAFT SLEEVE 700 152 001 700 252 001 700 352 001 700 452 001 EPDM 051 741 000005 051 741 00001 1 051 741 000044 051 741 000009 7B 1 O RING VITON 051 760 000005 051 760 00001 1 051 760 000044 051 760 000009 EPDM 051 741 000061 051 741 000021 051 741 000022 051 741 000018 7C 2 O RING VITON 051 760 000061 051 760 000021 051 760 000022 051 760 000018 VITON 051 760 000002 051 760 000030 051 760 000033 05
2. PLP1 177 5 PLP1 1 177 5 177 5 203 0 253 253 253 334 334 334 463 According to DIN 11851 CE PLP 1406 EN 12 41 User manual Pomac PLP Lobe pump 9 4 Sectional drawing 42 CE PLP 1406 EN 12 User manual Pomac PLP Lobe pump 9 5 Parts lists 9 5 1 Part list with article numbers PLP 1 ren aser ITEM QUANTITY DESCRIPTION 051022060005 051022280005 Stud 051 073 08 020 5 051 073 08 020 5 Pump cover 700 117 000 700 117 000 o r ORng Jee Tewes Rotor retainer 700 118 000 700 118 000 os 2 osm Jm 51741 10098 foor shat sea EA ee o fe wensen o STA Jemen 05190060125 Cone bearing 051 658 028 007 051 658 028 007 o4 8 Allen screw 051 000 06 025 5 051 000 06 025 5 Bearing cartridge 700 115 000 B 700 115 000 B Cone bearing 051 658 022 008 051 658 022 008 Too 120 0008 700 200008 Key 051 607 06 015 10 051 607 06 015 10 Tab washer 051 670 020 000 051 670 020 000 051 660 020 000 Jerez Oil retaining ring 051 763 013 051 763 013 Key 051 607 05 025 00 051 607 05 025 00 for 2 Je lege Tee Gearbox cover 700 116 000 700 116 000 Left hand gear 700 121 000 B 700 121 000 B Lay shaft 700 114 002 700 114 000 C Allen screw 051 000 06 040 5 051 000 06 040 5 Foot 700 132 000 700 132 000 Allen screw 051 000 08 020 5 051 000 08 020 5 Rotor cas
3. 11 Fix the lock nut by tapping a tab of the tab washer into an opening of the lock nut 12 Fit the seal covers 8 into the rotor case 34 the seal compartment facing the front side pump side see following figure 13 Fit the oil retainers 10 into the rotor case see following figure 32 CE PLP 1406 EN 12 7 11 User manual Pomac PLP Lobe pump 14 Fit a bearing cartridge 15 to the rotor case using Allen screws 14 15 Fit the second bearing cartridge to the rotor case using Allen screws Ensure the marks on the gears correspond with each other 16 Place the shims 12 underneath the bearing cartridges in their original positions as marked on the rotor case 17 Fix the Allen screws of the bearing cartridges Adjusting the axial rotor clearance The clearance between the rotor and the rotor case must be adjusted again in case one or more of the following parts have been replaced shaft pump casing bearing bearing cartridge Do the following 1 2 Fit a bearing cartridge 15 into the rotor case bore with Allen screws 14 Fix the bearing cartridge temporarily with 2 screws Fit the other bearing cartridge into the rotor case bore with Allen screws See to it that the markings correspond to each other Fix this bearing cartridge also temporarily with 2 screws f h 8 Bi Measure the depth of the rotor case Measure the distance between the front of the rotor case and
4. 4 12 Fitting additional connections AA the engine cannot be started when work is performed to the pump unit and the rotating parts are not completely covered Ensure that the whole system is thoroughly flushed and cleaned The whole system must be free from debris and particles because they could get into the pump and cause serious damage to rotors and rotor case I A pump which is NOT equipped with a QUENCHED shaft seal see type description may NEVER be installed in a position where it possibly could run DRY CE PLP 1406 EN 12 17 User manual Pomac PLP Lobe pump Flushing e When equipped with shaft seal type M1 M2 or O2 Connect the flush pipes to the shaft seal chamber through the openings in the rotor case The connections are threaded R1 8 e Incase a low pressure quench shaft seal types M2 M5 O2 and O4 is applied the flushing system must have a capacity of 0 25 l min at 0 5 mwc In case the pump is vertically mounted the QUENCH SUPPLY LINE SHOULD BE CONNECTED TO THE LOWER SIDE e Incase a pressurised flush shaft seal types M2 and M5 is applied the pressure of the flushing system must be 2 bar higher than system pressure In case the pump is vertically mounted the FLUSH SUPPLY LINE SHOULD BE CONNECTED TO THE LOWER SIDE D E Heating e When fitted with heating jackets connect this device to the heat supply IN OUT OUT IN IN OUT OUT IN 18 CE PLP 1406 EN 12 User manual Pom
5. Connections The delivery program comprises pump types with connections of 1 1 72 2 2 Y 3 and 4 The pump can be placed with its connections either horizontally or vertically Shaft seals The following shaft seal variants are available e Single mechanical seal e Double mechanical seal quenched or flushed e O ring seal e Double O ring seal quenched e Lip seal 3 4 Application area displacement max pressure max speed Type lit 100 rev bar rev min weight kg PLP 1 34 4 15 1500 12 PLP 1 1 6 15 1500 12 5 PLP 1 1 5 10 15 1200 13 PLP 15 2 20 8 1200 23 2 PLP 2 1 5 22 15 1200 37 PLP 2 2 30 15 1200 39 PLP 2 2 5 36 15 1000 44 PLP 3 2 55 15 1000 101 PLP 3 3 100 15 1000 105 PLP 3 4 130 15 750 115 PLP 4 4 250 15 750 295 Dependent on the gap between rotor and pump casing The values mentioned above are maximum values The operational values may be lower because of the liquid characteristics or the system design 10 CE PLP 1406 EN 12 User manual Pomac PLP Lobe pump Construction 3 5 The pump comprises of the following parts gears gearbox cover bearings shaft seal front cover rotorcase Os N YS 4 u ANS e N Iw A US NW n N Wi Fee Y E GE 3j SS N IL shafts bearing
6. Fitthe seal seat 7F into the rotor case The tabs of the bush must fit into the slots of the seal cover Fit the wave spring 7E onto the pump shaft Fit the stationary seal face 7C with its O ring 7D over the pump shaft into the rotor case Ensure that the co rotation pins fit into the slots of the seal ring Fit the rotating seal ring 7A with its O ring 7B into the rotor Ensure that the co rotation pins fit into the slots of the seal ring Fit the rotor see 7 12 7 12 2 Double mechanical seal assembly types M2 and M5 See paragraph 9 5 2 for drawing and part list with item numbers 1 7 Fit the rotating seal face 7J with its O ring 7K onto the pump shaft Ensure that the co rotation pins on the shaft fit into the slots of the seal ring Fit the stationary seal face 71 with its O ring 7H over the pump shaft Fit the seal seat 7F with its O ring 7G into the pump casing The tabs of the bush must fit into the slots of the seal cover Fit the wave spring 7E onto the pump shaft Fit the stationary seal face 7C with its O ring 7D over the pump shaft into the rotor case Ensure that the co rotation pins correspond to the gaps of the seal ring Fit the rotating seal face 7A with its O ring 7B to the rotor Ensure that the co rotation pins fit into the slots of the seal ring Fit the rotor see 7 12 7 12 3 O ring seal assembly types O1 O2 O3 and O4 See paragraphs 9 5 3 an
7. T 5 6 Close the stop valves at discharge and suction side of the pump In case no stop valves are fitted ensure that the system is drained to a level below the pump 2 Place a collecting tank at the front of the pump underneath the rotor case 3 4 Remove the cover from the rotor case using the lever slots in the cover and a large Slacken the cap nuts of the front cover screwdriver as a lever Collect the liquid emerging from the rotor case into the collecting tank Tighten the cap nuts again by hand 7 5 Oil draining OS Gabi A Place a collecting tank below the oil drain of the gearbox Unscrew the vent plug at the top of the gearbox Unscrew the drain plug at the bottom of the gearbox and drain the oil Drain the oil in the collecting tank Fit the drain plug and the vent plug to the gearbox Ensure that oil does not leak into the environment 7 6 Dismantling the pump akon Remove the coupling guard Loosen the coupling half on the pump shaft and pull it backwards If present loosen the quench pipes from the shaft seal If present loosen possible connections to a safety relief valve If present loosen the steam piping from the heating jacket A Ensure the steam supply is shut down and the heating jackets have cooled down Loosen the connections of the discharge and suction ports Ensure the piping is sufficiently supported Remove the retaining bolts and remove the
8. 1406 EN 12 59 User manual Pomac PLP Lobe pump 9 8 Spring loaded safety valve Article numbers Item Quantity Description PLP 1 PLP2 PLP 3 PLP 15 1 1 PUMP COVER 700 117 002 700 217 002 700 317 002 700 517 004 o EPDM 051741 000013 051741 000025 051 741 000035 1051 741 000013 RING VITON 051760 000013 051 760 000025 1051 760 000035 051 760 000013 3 1 PLUNGER 700 109001 700 209 001 700 309 001 700 109 001 4 4 STUD 051 073 063 020 5 051 073 063 030 5 051 073 063 035 5 051 073 063 020 5 5 4 STUD 051 073 08 025 051 073 12 045 5 051 073 12 055 5 051 073 08 025 6 1 CASING 700 109 002 700 209 002 700 309 002 700 109 002 7 4 WASHER 051 013 06 000 5 051 013 10 000 5 051 013 12 000 5 051 013 06 000 5 8 4 CAP NUT 051 022 06 000 5 051 022 10 000 5 051 022 12 000 5 051 022 06 000 5 9 1 on 700 109 005 700 209 005 700 309 005 700 109 005 10 1 pe ome 700 109 003 700 209 003 700 309 003 700 109 003 11 1 SET SCREW 700 109 004 700 209 004 700 309 004 700 109 004 12 1 LOCKNUT 1051 080 0000022 051 080 000003 1051 080 000004 051 080 000002 60 CE PLP 1406 EN 12 User manual Pomac PLP Lobe pump 9 9 Air loaded safety valve LI E SL ASA G 7 M 3 P uci Z A ja 22 ML SS IN E37 AA uj ZAN TI NNN RWS SS SS ARTICLE NR ITEM QUAN
9. 21314 5 6 17 8 o 10 Cause Acton wrong direction of rotation reverse direction of rotation of drive vent suction line and rotor pump is not filled with liquid case and prime rotor case with liquid x insufficient NPSHA Enlarge diameter of suction line or simplify suction line x creation of vapour in suction and make it shorter or line reduce speed and product temperature SE i air entering the suction line check the connections x e gas in the suction line vent suction line pump casing a i insufficient static head erase US level enlarge static head x TE lower the speed increase product viscosity is too high the product temperature SE increase the speed lower product viscosity is too low the product temperature kx x product temperature is too cool the product pump high casing S k EE EE heat the product rotor case x x we x foreign particles in the clean the system place a product filter at suction side in check piping for i x x x pressure at delivery side is obstructions simplify the too high 2 pressure line x e x x rotor case distorted by check alignment support piping the piping x speed to high lower the speed KR speed too low increase the speed x x x insufficient flushing increase flushing pressure Capacity worn out bearings gears replace the worn out parts Check if delivery valve is opened check piping for Salely val
10. 5 6 SOUND IOWA EE 24 6 Maint riance a erai i imei ein ars 25 6 1 General SUIVey 2i eee ade add e tra 25 06 2 Kee 25 7 Disassembly assem Die rreri dienaar uidaan ARARA PARAE cnn 26 7 1 OLACKING SPAare PANS TEE 26 EE EE 26 1233 copeclal tools ta ee dee a eeh a Te 26 7 4 Drainingithie PUMP aid its 27 Los Old e e da e EE 27 1 65 Dismantling the pump ueri ee e te eee e t HE eis 27 fete PUMP GISASSE MDL Y n e eene ntes 27 7 8 Disassembly of a safety valve nenn 29 CE PLP 1406 EN 12 3 User manual Pomac PLP Lobe pump 7 8 1 Disassembly of a spring loaded safety valve AA 29 7 8 2 Disassembly of an air loaded safety valve nn nnnn nn 30 292 PANS IMSPOCUON ti eegene ees UL ELM 20 EE en TE EN 7 11 Adjusting the axial rotor clearance nennen nnne enn 33 7 12 Shaft seal assembly idtm eibi situe aa 35 7 12 1 Single mechanical seal assembly types M1 M3 and M4 ec eeeceeeeeeeeteeeeteeeeeeees 35 7 12 2 Double mechanical seal assembly types M2 and ME 35 7 12 3 O ring seal assembly types O1 O2 O3 and OA ssssssssssseeee 35 7 12 4 Lip seal assembly type L a Ie De RU RED eae 36 FASE Rotorassembly ihi uen en nasi 36 7 14 Adjusting the timing of quattro lobes AAA 36 7 15 Front cover assembly sencera nunaa aeaa a N Aaea a aN 37 7 16 Gearbox assembly 1 aspe ded cec adian Dead dae De ede rede Ded aiaiai 37 7 17 Assembly of a safety valve sssssssssssssssesesseee ener
11. quantity 4 PLP 4 quantity 6 CE PLP 1406 EN 12 49 User manual Pomac PLP Lobe pump 9 7 2 Single mechanical seal type M4 I KL A B C D E F SINGLE MECHANICAL SEAL M4 WC WC Article numbers EB Quantity Description Description PLP 1 PLP15 PLP 2 PLP 3 PLP 4 ROTARY SEAL RING MEDIUM SIDE 700 158 001 700 258 001 700 358 001 700 458 001 EPDM 051 741 000005 051 741 000011 051 741 000021 051 741 000030 O RING vron viron Jost 760 000005 051 760 000011 051 760 000021 051 760 000030 STATIONARY SEAL eL RING MEDIUM SIDE 700 158 002 700 258 002 700 358 002 700 458 002 aS ee 2 0002 o jenem Jess Jess Jess men PLP1 PLP15 PLP 2 and PLP 3 quantity 4 PLP 4 quantity 6 50 CE PLP 1406 EN 12 User manual Pomac PLP Lobe pump 9 7 3 Double mechanical seal type M2 0 u 1 A B C D E CF G H I JK DOUBLE MECHANICAL SEAL M2 SiC SiC SIC SIC Aricie numbers Item Quantity Description PLP 1 PLP15 PLP 2 PLP 3 PLP 4 ROTARY SEAL RING AE 700 150 001 700 250 001 700 350 001 700 450 001 EPDM 051 741 000005 051 741 000011 051 741 000021 051 741 000030 we de MB VITON o051 760 000005 051 760 000011 051 760 000021 051 760 000030 STATIONARY SEAL Ges MEDIUM Sing 70080003 700 250 003 700 350 003 700 450 003 EPDM 051 741 000004 051 741 000012 051 741 000020 051 741 000029
12. 000 12 060 5 051 000 12 060 5 Bearing cartridge 700 315 000 700 315 000 051 658 060 071 _ 0515808007 1 Right hand gear 700 320 000 700 320 000 Key 051 607 14 043 10 051 607 14 043 10 Tab washer 051 670 045 000 051 670 045 000 Lock nut 051 669 045 000 051 669 045 000 Oil retaining ring 051 763 024 051 763 024 Key 051 607 12 060 00 051 607 12 060 00 jor 2 Pug legen Jegen Jee DI s s s s s s s oe o01 5 co ro o 0 o x COIN o x ce 46 CE PLP 1406 EN 12 User manual Pomac PLP Lobe pump 9 5 5 Part list with article numbers PLP 4 a o NR ITEM QUANTITY DESCRIPTION IPLP44 o O mu 8 Capnut 051 022 16 000 5 02 8 Stud 051 073 16 050 5 Front cover 700 417 000 o Tr ORng ez Rotor retainer 700 418 000 xs 2 ORng ENZO oy __ sat sear pe YEN EE Oil retaining ring 051 763 031 Gasket gearbox cover 700 461 000 C 7 niit 12 Conebearing 051 658 085 014 Allen screw 051 000 16 070 5 2o Bearing cartridge 700 415 000 2 Conebearing 051 658 070 013 1 Right hand gear 700 420 000 Key 051 607 20 055 10 Tab washer 051 670 065 000 Lock nut 051 669 065 000 Oil retaining ring 051 763 030 Key 051 607 16 090 00 Drive shaft 700 413 000 Oil sight glass 054 210 012 Oil fill plug with breather 054 211 011 Cylindrical pin 051 074 080 018 6 ay a EAT 700416000 Left hand gear 700 421 000 Lay
13. RII BOR po N N NIZZZZA Y N EZ SU I LG CE PLP 1406 EN 12 23 u bk 5 5 Bomm 5 6 a 24 User manual Pomac PLP Lobe pump In operation Never operate a pump with a shut off discharge valve or a blocked discharge line if no pressure relief valve is fitted If a pressure relief valve is fitted do not allow the pump vent through it for long A pressure relief valve is a safety device and not a flow control Avoid extreme temperature fluctuations of the pumped liquid These may cause damage to the pump because of expanding shrinking of pump parts The maximum values given for pressure speed or temperature may never be exceeded Operating principle of the safety valve In case a safety valve is mounted If the pump operated with a closed pressure valve the pumped liquid is by passed via the opened safety valve A relatively small quantity of liquid will circulate constantly and the heat generated by the internal liquid friction is no longer evacuated to outside The liquid temperature will increase strongly and the maximally permitted liquid temperature may be exceeded If a safety valve is mounted do not let the pump circulate for too long A safety valve is a safety device and may never be used as control valve Under normal system conditions the valve must remain closed When the safety valve has been put into operation a deviation of the normal conditions has occurred
14. cartridge IV N ER Y N foot rotor CE PLP 1406 EN 12 3 6 3 6 1 3 6 2 3 6 3 12 User manual Pomac PLP Lobe pump Safety valve optional Safety valve types The PLP can be supplied with a spring loaded or air operated safety valve The opening pressure is adjustable by means of a setscrew The following types can be provided with a safety valve PLP 1 3 4 PLP 2 1 5 PLP 3 2 PLP 1 1 idi PLP 2 2 PLP33 PLP 4 4 PLP 1 1 5 PLP 2 2 5 PLP 3 4 spring loaded v v v v safety valve air operated safety valve Description of the safety valve The Pomac safety valve is mounted directly to the pump cover This facilitates maintenance and guarantees optimal hygienic conditions When the valve opens a direct by pass is created between pressure side and suction side of the pump The valve covers almost completely the front side of the rotors and the spaces on suction side and pressure side partially At pump side the valve is submitted to the differential pressure inside the pump the air pressure or spring load exerts the external force on the valve Because fluid characteristics pressure division process factors etc all can influence the load characteristic on the valve the load must be adjusted on site When the differential pressure inside the pump exceeds the closing pressure exerted by the load set the valve will open Dimensions of valve an
15. e ft ee freta erae e Hd eerte beds 59 9 8 Spring loaded safety valve ccccecsceceecceceeeeeeeeeeeeeeeceaeeeeeaeeeeaaeceeeecaeeesaaeseeeeeseeeeessaeeeeaeeeenees 60 9 9 Airloaded safety vaa eirean a E E EA E 61 10 Drouble shootlrig E 62 4 CE PLP 1406 EN 12 1 1 1 2 1 3 1 4 User manual Pomac PLP Lobe pump Introduction General information This manual provides important information regarding the correct way of installing operating and servicing this pump This manual also provides information necessary to prevent the installer operator from injury or discomfort during installation and operation of this pump and to ensure the correct use and reliable performance of this pump This manual represents the most recent information regarding the pump types mentioned in this manual at the time of going to print However POMAC reserves the right to modify the construction of the pump types mentioned as well as the contents of this manual without prior or afterward notification Read this manual thoroughly before installing operating or servicing this pump Ensure that operators and maintenance staff are familiar with the symbols used Follow the instructions in this manual step by step Warranty Warranty is strictly limited to the conditions specified by POMAC and will only be granted according to these conditions Warranty will only come into force provided that e the pump has been installed and put i
16. program e inar et RE e SED INED ERR SS nr Bere n actio tis 10 3 4 Application area mi ert EROS rn UII Po tre Orr se tior tis 10 E 0 01 1 110 611 0 1 ERS eI ITE 11 3 6 Safety valve optional 12 361 Safety Valve EE 12 3 6 2 Description of the safety valve mann nnnnnnnnn 12 3 6 8 Connections of the air loaded safety vahye nn 12 EE Mc ds 13 4 4 General information nes 13 A je ini een 13 4 3 H lsting c 13 EE 14 4 5 ege osse Dc 14 4 6 Tei Bell Ee EE 14 A roii raei iea A EAEE a A AEEA NE UREE ea EAE 15 4 8 Pump with safety valve ee ee ee n nes 16 49 P mp unit assembiy EE 16 4 10 Coupling aligniment cocida ala iaa 16 4 111 Alignment tolerariees oet n cede teet Reel Be 17 4 12 Fitting additional connectioris 1 rtt e ette eL eek 17 4 3 Flushing the System od eee cte tete ee HR Bla 19 4 14 Establishing the direction of rotation essseenn enne eene 21 4 15 Connecting the drive peter ext D Dp eet iei eco e De eege 21 4 16 Ol Ml e aat 21 NN 22 O le EE 22 5 25 StartUp DEE 22 5 3 Adjusting the Ssafety ET 22 5 3 1 Adjusting a spring loaded safety valve uunessnnesnessnnnnnnnsnnnnnnnnnnnnnnnnnnnnnn ann nen ann nnn nn 22 5 3 2 Adjusting an air loaded safety valve nn nnn ann 23 KD 1 operation tuper iain torio hne idis 24 5 5 Operating principle of the safety valve nnne 24
17. rotor case see figure 8 Place the tip of the screwdriver behind the tabs of the seal seat showing in the holes 9 Carefully wriggle the seal seat with the shaft seal forward from the rotor case using both screwdrivers at the same time 10 Remove the seal seat with the shaft seal from the pump shaft 11 Remove the other shaft seal in the same way Keep both matching faces of a mechanical seal together when the mechanical seal is disassembled the faces have run in on each other and they may not be switched around CE PLP 1406 EN 12 User manual Pomac PLP Lobe pump Gearbox disassembly Proceed as follows to disassemble the gearbox 12 Remove the key 22 from the drive shaft 23 13 Remove the Allen screws 31 and remove the gearbox cover 28 from the rotor case 14 Remove the gasket 11 15 Remove the Allen screws 14 and remove both bearing cartridges 15 with shafts 23 and 30 16 Remove the shims 12 Mark the shims and their respective positions on the rotor case with waterproof marker In case no parts have to be replaced these shims must be replaced in their original positions 17 Remove the oil retainer 10 18 Remove the Allen screws 9 and remove the seal covers 8 Bearing disassembly Proceed as follows to disassemble the bearing assembly 19 Loosen both bearing lock nuts 20 and remove these together with tab washers 19 20 Remove the gears 17 and 29 from the shafts 21 Block the bearing c
18. 000 05 012 5 051 000 06 016 5 051 000 06 016 5 PLP 1 PLP15 and PLP 2 quantity 4 PLP 3 and PLP 4 quantity 6 52 CE PLP 1406 EN 12 User manual Pomac PLP Lobe pump 9 7 5 Single O ring seal type O1 e A B C G F SINGLE O RING 01 Article numbers Ed T PLP 1 PLP15 PLP2 PLP 3 PLP 4 1 SHAFT SLEEVE 700 152 001 700 252 001 700 352 001 700 452 001 SHAFT SLEEVE 051 741 000005 051 741 000011 051 741 000044 051 741 000009 O RING VITON 051 760 000005 051 760 000011 051 760 000044 051 760 000009 EPDM 051 741 000061 051 741 000021 051 741 000022 051 741 000018 7 E O RING VITON 051 760 000061 051 760 000021 051 760 000022 051 760 000018 EPDM 051 741 000002 051 741 000030 051 741 000033 051 741 000027 O RING VITON 051 760 000002 051 760 000030 051 760 000033 051 760 000027 1 SEALSEAT 700 153 005 700 253 005 700 352 005 700 452 005 E COVER 700 150 007 700 250 007 700 350 007 700 450 007 9 6 ALLEN SCREW 051 000 04 012 5 051 000 05 012 5 051 000 06 016 5 051 000 08 020 5 PLP 1 PLP15 and PLP 2 quantity 4 PLP 3 and PLP 4 quantity 6 CE PLP 1406 EN 12 53 User manual Pomac PLP Lobe pump 9 7 6 Single O ring seal type O3 SE ZE A B C GW F
19. 1 669 030 000 051 763 018 051 607 08 040 00 ARTICLE NR PLP 2 1 5 PLP 2 2 PLP 2 2 5 051 022 12 000 5 051 073 12 030 5 700 217 000 051 741 100041 700 218 001 051 741 100006 Oil retaining ring 051 763 019 051 763 019 051 763 019 Gasket gearbox cover 700 261 000 A 700 261 000 A 700 261 000 A 700 260 000 A 700800004 700260000 Drive shaft 700 213 001 700 213 000 700 213 000 Oil sight glass 054 210 012 054 210 012 054 210 012 Oil fill plug with breather 054 211 011 054 211 011 054 211 011 Cylindrical pin 051 074 060 010 6 051 074 060 010 6 051 074 060 010 6 pr a onen JE Jee 700216000 m02 6000 700216 000 Left hand gear 700 221 000 700 221 000 700 221 000 Lay shaft 700 214 001 700 214 000 700 214 000 051 000 1055 5 051000 10 0555 _ 051 000 10553 roo 732 000 Jusen 700232000 051000 100255 051000100255 _ 051000 10255 7o0210 000 700210000 700270016 ma Jun 702100 CE PLP 1406 EN 12 45 User manual Pomac PLP Lobe pump 9 5 4 Part list with article numbers PLP 3 ARTICLE NR ITEM QUANTITY DESCRIPTION PLP 3 2 PLP 3 3 PLP 3 4 Cap nut 051 022 16 000 5 051 022 16 000 5 Stud 051 073 16 045 5 051 073 16 045 5 Front cover 700 317 000 700 317 000 700 317 000 foe 1 fore Jee ESTE Rotor retainer 700 318 000 E 700 318 000 E os 2 Sora lemer osizar 00087 lor est 000 i Aenssew TT STA 051 658 060012 05165809007 1 8 Allen screw 051
20. 1 760 000027 SEAL SEAT 700 153 005 700 253 005 700 352 005 700 452 005 700 150 007 700 250 007 700 350 007 700 450 007 PLP 1 PLP15 and PLP 2 quantity 4 PLP 3 and PLP 4 quantity 6 EPDM 051 741 000002 051 741 000030 051 741 000033 051 741 000027 7F 2 O RING CE PLP 1406 EN 12 55 User manual Pomac PLP Lobe pump 9 7 8 Double O ring seal type O4 En Jee A 8 D 9 Co e E77 n 7 7 Gn E ee Q DOUBLE O RING O4 Article numbers Item Quantity PLP 1 PLP15 PLP 2 PLP 3 PLP 4 SHAFT SLEEVE 700 152 201 700 252 201 700 352 201 700 452 201 EPDM 051 741 000005 051 741 000011 051 741 000044 051 741 000009 7B d O RING VITON 051 760 000005 051 760 000011 051 760 000044 051 760 000009 EPDM 051 741 000061 051 741 000021 051 741 000022 051 741 000018 7c l2 O RING VITON 051 760 000061 051 760 000021 051 760 000022 051 760 000018 EPDM 051 741 000002 051 741 000030 051 741 000033 051 741 000027 7F 2 O RING VITON 051 760 000002 051 760 000030 051 760 000033 051 760 000027 SEAL SEAT 700 153 005 700 253 005 700 352 005 700 452 005 fs 1 SEAL COVER 700 150 007 700 250 007 700 350 007 700 450 007 a 4 6 ALLEN SCREW 051 000 04 012 5 051 000 05 012 5 051 000 06 016 5 051 000 08 020 5 PLP 1 PLP15 and PLP 2 quantity 4 PLP 3
21. 6 EN 12 13 User manual Pomac PLP Lobe pump e Incase a single pump must be hoisted fix the straps as follows 4 4 Safety P Ww insert fingers into the rotor case or into the connection ports Even manually rotating the shaft can cause injury I If the risk exists of exceeding the maximum working pressure a safety device must be fitted to the pump the drive or the system 4 5 Foundation e The foundation must be solid flat and level e Take into consideration the need for draining facilities e The entire weight of the baseplate should rest level on the foundation The baseplate may not bend 4 6 Built in dimensions e The proper built in dimensions of the pump are incorporated in the dimensions sketch supplied separately with the pump unit e See paragraph 9 2 for the main dimensions of the single pump 14 CE PLP 1406 EN 12 User manual Pomac PLP Lobe pump 4 7 Piping The piping must meet the following requirements General e Ensure the piping is sufficiently supported especially besides the inlet and outlet ports The piping should be fully supported independently from the pump e The connections must be fitted square to the pump e The lines must be fitted and connected stress free D Piping which is fitted obliquely insufficiently supported or exerting force to the pump may cause serious damage to the pump e Check if the piping shows any visible leakage Inlet piping e Itis recommended to place
22. Always find the cause of this and take proper measures Shutting down Ensure that the pump does not run dry when emptying it Dry running is only permitted if the pump is equipped with a flushed shaft seal 1 Shut down the pump by shutting down the power supply to the drive 2 In case the system remains pressurized keep stop valves in flush lines OPEN 3 If the pump is equipped with heating jackets keep stop valves in the heating system OPEN in case the pump conveys a liquid that may congeal at lower temperatures CE PLP 1406 EN 12 6 1 6 2 User manual Pomac PLP Lobe pump Maintenance General survey Check regularly if the pump functions properly Excessive noise may indicate problems like worn out bearings gear trouble dragging of the rotors or cavitation if applicable pressure and flow of the flushing system if applicable the temperature of the heating system the oil level When the oil level has been reduced check the pump for oil leakage the pressure at suction and delivery side Oil change Change the oil in the gearbox every 3000 operating hours or at least once a year See paragraph 9 1 for oil specifications CE PLP 1406 EN 12 25 User manual Pomac PLP Lobe pump 7 Disassembly assembly 7 1 Ordering spare parts When ordering spare parts the following information must be supplied e the serial number this can be found on the pumps type plate and on the first page of this man
23. Oil change 23 Oil draining 25 oil fill plug 20 34 35 Oil filling 20 oil quantities 37 oil sight glass 20 21 34 35 oil types 37 Operating principle 10 Operation 21 Ordering spare parts 24 O ring 10 18 19 25 32 33 34 49 50 51 52 O ring seal assembly 32 pallet 13 Parts inspection 27 parts list 24 25 27 39 Piping 15 Pump disassembly 25 Pump unit assembly 16 quattro lobes 28 33 quench 21 25 rotor 18 19 24 30 32 33 56 rotor retainer 18 19 33 rotorcase 14 17 18 19 25 26 27 29 30 32 33 34 36 57 Rotorcase assembly 34 Safety 6 9 14 24 Safety measures 24 safety relief valve 9 25 safety valve 12 27 35 safety valve 22 seal cover 27 29 32 33 Sectional drawing 39 setscrew 12 shaft seal 10 17 18 21 22 25 26 27 56 Shaft seals 10 45 shim 30 31 Shutting down 22 Single mechanical seal 10 32 45 46 Single mechanical seal assembly 32 Single O ring 49 50 Special tools 24 spring loaded 12 35 Staff 6 Start Up 21 Storage 36 system conditions 22 tab washer 27 29 Technical data 37 Transport 5 13 Trouble shooting 56 type 17 18 21 24 28 29 30 31 32 33 45 46 49 50 51 52 53 54 Type code PLP 7 Warranty 5 64 CE PLP 1406 EN 12
24. TITY DESCRIPTION PLP 4 o s somas o O ring string D 2 40 NBR P 000 002 095 Allen screw M12x65 A2 051 000 12 065 5 Pump cover for air loaded safety valve PLP 4 700 417 007 CE PLP 1406 EN 12 User manual Pomac PLP Lobe pump 10 Trouble shooting 62 A malfunction in a pump system may have various causes The malfunction is not always necessarily in the pump itself but can also be caused by a malfunction in the piping system or in another appendage in the system If the operating conditions differ too greatly from the specifications by which the pump was purchased this can also cause malfunctioning Therefore always check first Has the pump been installed correctly Are the operating conditions still according to the initial specifications e e e Are the other appendages in the pipe system functioning correctly e n general terms the following malfunctions in a pump can be distinguished 1 pump gives no liquid 2 pump gives irregular liquid flow 3 capacity too low 4 pump overheats 5 motor overheats 6 excessive rotor wear 7 excessive wear of shaft sealing 8 pump vibrates excessively or makes too much noise 9 pump stops 10 pump comes to a stop at start up The table on the next page gives a possible cause and solution for the malfunctions mentioned above CE PLP 1406 EN 12 User manual Pomac PLP Lobe pump Fault e 1
25. User manual PLP Lobe pumps Pomac Pumps Pomac bv Feithspark I3 9356 BX Tolbert the Netherlands Tel 31 0 594 512877 Fax 31 0 594 517002 info pomacpumps com www pomacpumps com This user manual has been released d d and belongs to PLP Pump serial number capacity m h pressure bar NPSHR m Drive make type speed min voltage AJA V frequency Hz current A power kW isolation class protection class IP area classification Coupling make type size User manual Pomac PLP Lobe pump User manual Pomac PLP Lobe pump This manual has been compiled with the utmost care However POMAC assumes no liability for possible deficiencies of the information in this manual It is the responsibility of the buyer user of this pump to ensure this information is complete and up to date All technical information mentioned in this user manual remains property of Pomac bv and may only be used for the installation operation and maintenance of this pump The information may not be copied duplicated or passed on to third parties without our written permission Copyright 2010 Pomac bv Release date June 2014 Doc ID CE PLP 1406 EN 12 CE PLP 1406 EN 12 1 User manual Pomac PLP Lobe pump DECLARATION OF INCORPORATION accord
26. ac PLP Lobe pump 4 13 Flushing the system I The system must ALWAYS BE FLUSHED Not only BEFORE INSTALLING the pump but AFTER EACH ACTIVITY DURING WHICH THE SYSTEM HAD TO BE OPENED e g replacement of valves or piping segments the pump is connected to the power supply Ensure the pump is shut down and take precautions to prevent unintentional staring up of the pump See paragraph 9 4 for explanation of the item numbers 1 Unscrew the cap nuts 1 and remove the front cover 3 and the O ring 4 2 Unscrew the rotor retainers 5 using the special spanner provided with the pump Block the oR Ga rotors against co rotation using a proper fitting wooden or plastic dowel Remove the rotor retainers with O rings 6 Remove both rotors from the shafts Remove the shaft sleeves or the rotating seals part from the rotors and fit them in the dummy rotors provided with the pump Fitthe dummy rotors to the shafts and fit the rotor retainers using the special spanner Fitthe O ring into the front cover and fit the front cover to the rotor case Thoroughly clean the entire system from top to bottom Flush until the flushing liquid discharged from the system is clean and all debris is disposed of CE PLP 1406 EN 12 19 User manual Pomac PLP Lobe pump Once the system is clean 9 Unscrew the cap nuts and remove the front cover and the O ring 10 Remove the rotor retainers and remove both dummy rotor
27. and PLP 4 quantity 6 56 CE PLP 1406 EN 12 User manual Pomac PLP Lobe pump 9 7 9 Lip seal type L1 LIP SEAL L1 Article numbers E SE PLP 1 PLP15 PLP 2 PLP 3 1 SHAFTSLEEVE SLEEVE 700 154 201 700 254 201 700 354 201 Dee o ring LEPOM 051 741 000005 051 741 000011_ 051 741 000021 a E NC m s 5 sear cover Jeer Ise Las s 463 _ auensorew_ 051 0004 0123 01 005123 051000060165 PLP 1 E and PLP 2 quantity 4 PLP 3 quantity 6 CE PLP 1406 EN 12 57 User manual Pomac PLP Lobe pump 9 7 10 Lip seal type L2 LIP SEAL L2 Article numbers Item Quantity PLP 1 PLP15 PLP 2 PLP 3 SHAFT SLEEVE 700 154 101 700 254 101 700 354 101 EPDM 051 741 000005 051 741 000011 051 741 000021 7 CY PLP 1 PLP15 and PLP 2 quantity 4 PLP 3 quantity 6 58 CE PLP 1406 EN 12 User manual Pomac PLP Lobe pump 9 7 11 Lip seal type L3 LIP SEAL L3 Quantity je O RING 7 ALLEN SCREW PLP 1 PLP 15 and PLP 2 q tem e um Article numbers Quantity tem Quantity 700 154 201 700 254 201 700 354 201 700 154 006 700 254 006 700 154 005 700 254 005 700 150 007 700 250 007 051 000 04 012 5 051 000 05 012 5 uantity 4 PLP 3 quantity 6 CE PLP
28. and side seen from shaft end T suction position top L suction position at left hand side seen from shaft end B suction position bottom 4 Connection type discharge side 01 hygienic thread acc to DIN 11851 02 SMS 1145 03 Tri clamp ISO 2852 04 DIN 11864 1 05 DIN 11864 2 06 flanges acc to EN1092 1 07 BSP thread 08 NPT thread 09 rectangular port 10 Tri clamp DIN 32676 XX acc to client specification 5 Type shaft seal M1 single mechanical seal SiC SiC M2 double mechanical seal quench or flush SiC SiC SiC SiC M3 single mechanical seal with small seal faces SiC SiC M4 single mechanical seal TC TC M4V retracted single mechanical seal TC TC M5 double mechanical seal quench or flush TC TC TC TC M6 dubbel mechanical seal met quench of flush TC TC SIC SIC M7 dubbel mechanical seal met quench of flush SIC SIC TC TC O1 single O ring hardened stainless steel shaft sleeve 02 double O ring with quench hardened stainless steel shaft sleeve 03 single O ring ceramic shaft sleeve O4 double O ring with quench ceramic shaft sleeve L1 PTFE lip seal hardened stainless steel shaft sleeve L2 PTFE lip seal ceramic shaft sleeve L3 WDR PTFE lip seal ceramic hardened stainless steel shaft sleeve 6 Elastomers shaft seal V Viton E EPDM N NBR S Silicon T Teflon K Kalrez VC VITON with general statement of conformity to FDA EC EPDM with general statement of confo
29. artridge and remove the shaft with the bearings by tapping on the shaft end at drive side with a plastic hammer 22 Pull the smaller bearing 16 from the shaft using a proper puller 23 Use a proper fitting bush its bore larger than the shaft shoulder and bearing on the inner ring of the larger bearing 13 and tap this bearing from the shaft 24 Remove both bearing shells from the bearing cartridges 7 8 Disassembly of a safety valve Dy dicossemsiy of a safety valve may ONLY be done on a shut down pump which is cooled down and vented 7 8 1 Disassembly of a spring loaded safety valve For explanation of the item numbers see the sectional drawing and parts list in paragraph 9 9 1 Unscrew locknut 12 2 Turn set screw 11 to set the spring load with a properly fitting spanner entirely CLOCKWISE until the spring is completely unloaded Unscrew the 4 fixation nuts 8 of the safety valve Remove the safety valve casing 6 with spring 9 Unscrew the cap nuts of the pump cover 1 and remove the pump cover with the plunger 3 from the pump 6 Push the plunger out of the opening in the cover 7 Remove the O ring 2 from the plunger OP CE PLP 1406 EN 12 29 User manual Pomac PLP Lobe pump 7 8 2 Disassembly of an air loaded safety valve For explanation of the item numbers see the sectional drawing and parts list in paragraph 9 10 P en ofa safety valve may ONLY be done on a shut down pump whi
30. ch is cooled down and vented 79 30 NOORONDM Shut off the air pressure and vent the compressed air supply line Disconnect the compressed air connection Unscrew the fixation bolts 7 of the safety valve Remove the complete safety valve casing Unscrew the Allen screw 14 and disassemble the interior parts of the safety valve Remove the O rings Unscrew the cap nuts of the pump cover and remove the pump cover from the pump Parts inspection Replace defective parts always using original Pomac parts Check all oil retainers for possible leakages Check all non defective parts for scratches burrs debris or excessive wear In case the gearbox has been disassembled Make sure the sealing face between rotor case and gearbox cover is clean and free from gasket remains Clean all parts with a non picking cloth CE PLP 1406 EN 12 7 10 Bomm Bomm User manual Pomac PLP Lobe pump Gearbox assembly See the sectional drawing with parts list in paragraph 9 4 for explanation of the item numbers For the shaft seals see paragraph 9 7 If the pump is provided with QUATTRO LOBES the LOBE TIMING must always be readjusted after every occasion the bearings have been disassembled See paragraph 7 14 Ensure all parts are clean and the working area is cleaned up 1 Fitthe large and small bearing shells at both sides into the bearing cartridges 15 2 Heat the larger bearings 13 and fit the
31. cribed below into the gearbox The positions are indicated starting at the back of the pump Attention if the pump is mounted in a self draining position the gearbox is mounted in a FLAT position 3 Fit the plugs 27 into the holes at the bottom and right side of the gearbox 4 Fit the oil sight glass 24 into the hole at the left of the gearbox 5 Fit the oil fill plug 25 into the hole on top of the gearbox CE PLP 1406 EN 12 37 User manual Pomac PLP Lobe pump 7 17 Assembly of a safety valve 7 17 1 Assembly of a spring loaded safety valve See paragraph 9 9 for the drawing and parts list 1 2 E Go 0 Y O O1 Put the pump cover flat down Lubricate the O ring lightly with some food compatible grease fit it around the plunger and push the plunger into the hole in the pump cover Entirely screw the pressure disk 10 onto setscrew 11 Fitthe pressure disk with the setscrew into the safety valve casing 6 The guiding pin must correspond to the hole in the pressure disk Tighten the locknut 12 by hand Fitthe spring onto the plunger Fitthe safety valve casing over the spring Fix it with cap nuts 8 Fit the O ring mount the pump cover to the pump and fix it with the cap nuts The adjustment of the spring of the safety valve must be carried out on site during process conditions See paragraph 5 3 7 17 2 Assembly of an air loaded safety valve See paragraph 9 10 for the drawing and par
32. d 9 5 4 for drawings and part lists with item numbers 1 Fit the O ring s 7C into the seal seat 7F 2 Fit the seal seat with its O ring s 7G into the rotor case The tabs of the bush must fit into the slots of the seal cover Fit the shaft sleeve 7A with its O ring 7B into the rotor Ensure that the co rotation pins fit into the slots of the shaft sleeve Fit the rotor see 7 12 CE PLP 1406 EN 12 35 User manual Pomac PLP Lobe pump 7 12 4 Lip seal assembly type L See paragraph 9 5 5 for drawing and part list with item numbers 1 Fitthe seal seat 7F into the rotor case The tabs of the bush must fit into the slots of the seal cover 2 Fit the lip ring 7C over the pump shaft into the rotor case 3 Fit the shaft sleeve 7A with its O ring 7B into the rotor Ensure that the co rotation pins fit into the slots of the shaft sleeve 4 Fit the rotor see 7 12 7 13 Rotor assembly 1 Fit the rotors onto the shafts 2 Screw the rotor retainers with their O ring into the shaft 3 Tighten the bolts with the special bit which is included in the delivery For the required Tightening Moment refer to the table below Type Tightening Moment Nm PLP 1 36 PLP 15 36 PLP 1 62 PLP 3 155 PLP 4 300 4 Block the rotors against co rotation using a proper fitting wooden or plastic dowel 7 14 Adjusting the timing of quattro lobes 36 If the pump is prov
33. d valve housing are such that a part of the pump capacity can be by passed from pressure side to suction side Connections of the air loaded safety valve Connection A Air pressure Connection B Valve vent always has to be open CE PLP 1406 EN 12 User manual Pomac PLP Lobe pump 4 Installation 4 1 General information e The foundation must be solid flat and level e The area in which the pump is placed must be well vented Too high a temperature or air humidity or a dusty atmosphere may have negative effects on the performance of an electric motor e The area around the pump unit must be sufficient for the pump to be operated cleaned or repaired e To ensure an unobstructed air supply to an electric motor there must be a free space behind the fan cover equal to 1 4 of its diameter A All work on and with the pump must always be in accordance with all the prevailing standards regarding occupational health and safety as well as machine safety 4 2 Transport e Incase the pump or the pump unit is delivered on a pallet leave it on the pallet as long as possible This will facilitate the internal transport 4 3 Hoisting e lf there is a proper hoisting device available use this to move the pump unit AA stand underneath a hoisted pump e Incase the pump is assembled with a motor on a baseplate the pump unit must always be hoisted with the straps fixed as shown in the following figure CE PLP 140
34. enhn nennen enne enne 38 7 17 1 Assembly of a spring loaded safety valve nan cnnnnnnnn 38 7 17 2 Assembly of an air loaded safety valve 00 ceeecceeeeeeeeeeeeeeeeeeeseeeeeeeseeeeeeeseeeaeereeenaeees 38 7 18 Filling with oil ici ia DEE III 38 8 Glosing Kale VE 39 8 1 Dismantling piena padded da 39 ele 39 8 3 Disposal seda pd IH A 39 9 Technical data interd ee e de ELT Le i HERE E EE RI 40 SAMO I DEN 40 9 2 ee ET TEE A0 Ta A EE EE 41 9 4 e ee ERT ln e DEE 42 9 5 E EE 43 9 5 1 Part list with article numbers PUP 43 9 5 2 Part list with article numbers PLP 15 screeners etaura iaa i aS aaa aS 44 9 5 3 Part list with article numbers PLP 3 45 9 5 4 Part list with article numbers PLP 3 46 9 5 5 Part list with article numbers PLP A nenn nenne 47 9 6 Materials SpecifiCatiOn x oot eeu eed erit te ete Rte e re Re ERES 48 9 7 Shaft seals etian ite nappes Pape espada Pedir ees neve besteet ideas 49 9 7 1 Single mechanical seal type Mi 49 9 7 2 Single mechanical seal type MA 50 9 7 3 Double mechanical seal type Mi 51 9 7 4 Double mechanical seal type M A 52 9 7 5 Single O ring seal type O1 eee nnne tenni nnne nennen 53 9 7 6 Single O ring seal wpeO enne nnenen nentes nnne 54 9 7 7 Double O ring seal type On 55 9 7 8 Double O ring seal type O4 ener nentes nnne nnne 56 9 7 9 Lip seal typo EE 57 9 7 10 Lip seal type Lars en tb Ig ede a dac insel 58 9 7 11 Lip seal type Bin
35. ent open the stop valves of the heating system Let the pump warm up to its working temperature 3 If present open the discharge valve 4 If present open the suction valve 5 Start the pump unit Adjusting the safety valve If the pump is provided with a safety valve the required opening pressure of this valve must be set first BEFORE commissioning the pump Adjusting a spring loaded safety valve 1 Ensure the shut off valves in the pressure line and possibly in the suction line are completely opened The system must be filled with the liquid to be pumped 2 Ensure the spring of the safety valve is completely unloaded If not unscrew the locknut and turn the setscrew completely clockwise see figure until the spring is completely unloaded 3 Switch on the pump 4 Turn the setscrew of the safety valve completely anti clockwise until the spring is maximally loaded On doing this check if the pressure does not exceed 15 bar If it does exceed 15 bar immediately shut down the pump and check the system piping 5 Slowly close the shut off valve at pressure side until the pressure gauge indicates the desired opening pressure of the safety valve The opening pressure may never be set higher than 15 bar 6 Turn the setscrew of the safety valve clockwise until the pressure gauge indicates the pressure starts decreasing The valve is now set to the correct pressure 7 Set the pressure shut off valve to the normal opened pos
36. g an electric drive e Fit an automatic circuit breaker to protect the drive against electrical overload e Mount a working switch close to the pump e Mount an earth switch 4 16 Oil filling n The gearbox of a new pump is already filled with oil 1 Unscrew the oil fill plug on top of the gearbox 2 Fill the gearbox with oil until the oil level reaches the centre of the oil sight glass See chapter 9 for the oil specifications 3 Fit the oil plug to the gear box CE PLP 1406 EN 12 21 5 1 Bomm 5 2 Bomm 5 3 1 Bomm a 22 User manual Pomac PLP Lobe pump Operation Checking e Check if the gearbox is sufficiently filled with oil The oil level must be visible through the oil sight glass of the gearbox The pump may never operate if the gearbox is not filled with oil e f present check the pressure of the flushing system For shaft seals types M2 M5 O2 or O4 the pressure less quench must have a pressure of 0 5 mwc and a flow of 0 25 l min In case the pump is vertically mounted the QUENCH SUPPLY LINE SHOULD BE CONNECTED TO THE LOWER SIDE For shaft seals M2 or M5 the pressurized flush must have a pressure of 2 bar higher than system pressure In case the pump is vertically mounted the FLUSH SUPPLY LINE SHOULD BE CONNECTED TO THE LOWER SIDE e If present check if the heating system has the correct temperature Start Up 1 If present open the stop valves of the flush lines 2 If pres
37. ided with so called quattro lobes they must be adjusted with regard to each other Act as follows 1 Ensure the Allen screws of the driven gear see figure are not completely tightened CE PLP 1406 EN 12 7 15 7 16 User manual Pomac PLP Lobe pump 2 Rotate the pump shaft until the lobes are in the positions as shown below 3 Measure the gap between the upper and lower rotor at the indicated spot using a feeler gauge 4 Place a strip of brass sheet with the thickness of the measured gap between both lobes The lobes may no longer move with regard each other If necessary use a thicker bass sheet 5 Tighten the Allen screws of the screw ring crosswise with the prescribed torque as indicated below PLP Bolt Quantity Torque Nm 1 MA 8 4 9 15 M5 10 9 8 2 M5 10 9 8 3 M6 16 16 8 4 M10 12 81 6 Remove the strip of brass sheet Front cover assembly See paragraph 9 4 for drawing and parts list of the referenced parts 1 Place the O ring 4 in the front cover 3 2 Fit the front cover to the rotor case and fix it with cap nuts 1 3 Fit in case they are disassembled the feet 32 with Allen screws 33 Gearbox assembly See paragraph 9 4 for drawing and parts list of the referenced parts 1 Place a new gasket 11 into the gearbox cover 28 2 Fit the gearbox cover to the rotor case with Allen screws 31 In case they are disassembled fit the parts as des
38. ing 700 110 007 700 110 005 CE PLP 1406 EN 12 43 User manual Pomac PLP Lobe pump 9 5 2 Part list with article numbers PLP 15 ITEM 001 002 003 004 005 007 CO 00 o x ce 02 02 02 02 024 02 02 Ce ro o 028 029 030 031 032 033 034 035 44 ARTICLE NR QUANTITY DESCRIPTION PLP 15 2 Ho omg lesen 7 116000 poring 2800000 BEE 7006007 5 Mens ESTEPA P 000001 52 7006 000 EE P 000001 50 ERR DEE 70051500 P 000001 50 700520000 PONS P 000001 55 P 000001 52 05 607 06 402 70051300 054210012 EEN 051070500108 p CTI JE 70051600 7002 000 7005 000 051000060405 CE PLP 1406 EN 12 User manual Pomac PLP Lobe pump 9 5 3 Part list with article numbers PLP 2 ITEM QUANTITY DESCRIPTION 051022 120005 Stu Front cover 051 073 12 030 5 700 217 000 foe 1 o8 eec 700216000 DEE Cone bearing oa Je Allen screw Bearing cartridge Cone bearing Key Tab washer 051 658 045 010 051 000 10 045 5 700 215 000 051 658 035 009 Right hand gear 700 220 000 051 607 10 027 10 051 670 030 000 Oil retaining ring Key 051 763 018 051 607 08 040 00 051 022 12 000 5 051 073 12 030 5 700 217 000 051 741 100041 700 218 000 051 741 100006 051 658 045 010 051 000 10 045 5 700 215 000 051 658 035 009 700 220 000 051 607 10 027 10 051 670 030 000 05
39. ing to Annex II 1 B of the Machinery Directive 2006 42 EC 1st Edition December 2009 Pomac bv Feithspark 13 9356 BX Tolbert The Netherlands hereby declares completely under own responsibility that the pump mentioned below Model Lobe pump Type PLP Execution bare shaft Materials 1 4404 to which this declaration refers to is in conformity with the following standards Standards EN ISO 12100 parts 1 amp 2 NEN EN 60204 part 1 EN 809 The pump must not be put into service until the final machinery into which it is to be incorporated has been declared in conformity with the provisions of this Directive 2006 42 EC where appropriate Issued at Tolbert 29th of December 2009 alst H Poelstra Managing Director 2 CE PLP 1406 EN 12 User manual Pomac PLP Lobe pump Table of contents T Introduction iui tee IRDIRPRO Ie D eue m eu iain 5 1 1 General Imtommaton eeccceccceceneeeeeceeeeneeceeeeeeaaesecaaeecaeeecaaeeseaaesaneesaeeeeaaesdeaeesseeeesaeseenaeesenees 5 1 2 Warranty eite biete Poeni eem bandied ete hina ee dee ee iei a 5 1 8 Transport and receipt Neen 5 1 4 Man factUrerz uo erect a ePi d etate dett dt unida eta lan 5 Qe ANCL RD PEDES 6 NEE Elte Tu e EE 6 El let E 6 SE eege erect ere te ebe ebe enee 6 2 4 Changed applicatio EE 6 CNET TET TB TU e REMIS EE 7 9s Pump identification 1 rara arica 7 3 2 Operating principle enne nennen nennen sn nnne entente nnns innen nnns 10 3 37 Delivery
40. ition 8 Fix the setscrew of the safety valve by tightening the locknut CE PLP 1406 EN 12 User manual Pomac PLP Lobe pump a LOCKNUT Ps SETSCREW a 5 3 2 Adjusting an air loaded safety valve 1 Ensure the shut off valves in the pressure line and possibly in the suction line are completely opened The system must be filled with the liquid to be pumped Install a pressure gauge in the pressure line between pump and shut off valve 2 Ensure there is no air pressure pplied to the safety valve 3 Switch on the pump 4 Slowly apply a maximum of 5 bar air pressure to the safety valve I Meanwhile check if the pressure does not exceed the maximum pressure of the pump If it exceeds the maximum pressure of the pump immediately shut down the pump and check the system piping 5 Slowly close the shut off valve at pressure side until the pressure gauge indicates the desired opening pressure of the safety valve The opening pressure may never be set higher than the maximum pressure of the pump 6 Decrease the air pressure until the pressure gauge indicates the pressure starts decreasing The valve is now set to the correct pressure 7 Reset the pressure shut off valve to the normal opened position I Use a monitoring device to check the setting of the air pressure continuously If the pressure is rising or dropping a warning signal has to be given to the operator of the pump to stop the pump immediately d ib E Ail i
41. m a eegen ME VITON 051 760 000004 051 760 000012 051 760 000020 051 760 000029 WAVE SPRING 700 150 005 A 700 250 005A 700 350 005A 700 450 005 A SEAL SEAT 700 151 006C 700 250 008A 700 351 006A 700 451 006 A EPDM 051 741 000061 051 741 000044 051 741 000022 051 741 000033 28 hh seg E VITON 051 760 000061 051 760 000044 051 760 000022 051 760 000033 EPDM 051 741 000003 051 741 000010 051 741 000017 051 741 000028 uh NES VITON 051 760 000003 051 760 000010 051 760 000017 051 760 000028 H STATIONARY SEAL mh RING ATM SIDE 700 151 011 700 251 011 700 351 011 700 451 011 ROTARY SEAL RING P E 700 151 012 700 251 012 700 351 012 700 451 012 EPDM 051 741 000001 051 741 000008 051 741 000015 051 741 000024 c li a VITON 051 760 000001 o51 760 000008 051 760 000015 051 760 000024 8 pt SEAL COVER 700 150 007 700 250 007 700 350 007 700 450 007 mm 4 6 ALLEN SCREW 051 000 04 012 5 051 000 05 012 5 051 000 06 016 5 051 000 06 016 5 PLP 1 PLP15 and PLP 2 quantity 4 PLP 3 and PLP 4 quantity 6 CE PLP 1406 EN 12 51 User manual Pomac PLP Lobe pump 9 7 4 Double mechanical seal type M5 el Dees A B C D E F G H DK DOUBLE MECHANICAL SEAL M5 GE WC WC A
42. mp has a unique serial number and a type number Both are stated on the type plate of the pump P g iw O 56 1G Tolbert e Netherlands Year m h Pressure Power kW Speed OH Tel 31 0 594 512877 www pomacpumps com The type number describes the set up of the pump and is composed as follows PLP x X xX X x x x X xX X x x x x x x 1 2 1 314 5 6 7 8 9 10 11 12 13 14 15 16 PLPH in case of hydraulic drive PLPS in case of split pump casing Example PLP 2 2 0101 Mi VV P2 S1 C1 O1 G1 H1 V1 R1 W1 1 Gearbox size 1 gearbox size 1 15 gearbox size 1 5 2 gearbox size 2 3 gearbox size 3 4 gearbox size 4 2 Connection diameter Ya Y 1 1 1 5 1 5 2 2 2 5 22 5 3 3 4 4 3 Connection type suction side 01 hygienic thread acc to DIN 11851 02 SMS 1145 03 Tri clamp ISO 2852 04 DIN 11864 1 05 DIN 11864 2 06 flanges acc to EN1092 1 07 BSP thread 08 NPT thread 09 rectangular port 10 Tri clamp DIN 32676 XXa acc to client specification CE PLP 1406 EN 12 7 User manual Pomac PLP Lobe pump The codes at pos determine the position of the suction connection For horizontal pump position For vertical pump position R suction position at right h
43. ng instructions Storage e Ifthe pump is going to be stored the pump shaft must be rotated manually once a month e Ifthe pump is to be stored for a long period of time it must be done so on a vibration free base If the pump which is going to be stored is equipped with a safety valve Prior to storage loosen the lock nut and turn the spring load set screw completely CLOCKWISE using a proper spanner until the spring load is completely released Disposal If the pump is to be disposed of take care of the following items e Clean the rotor case internally it may still contain residual product e Drain the oil from the gearbox e Dispose of the pump using a company specialized in metal scrapping CE PLP 1406 EN 12 39 9 1 9 2 40 Technical data Oil types User manual Pomac PLP Lobe pump Recommended oil types for the gearbox are Examples of recommended oil types Make Type Shell Cassida Fluid GL 220 BP Energol GR FG 220 Recommended characteristics Ambient temperature Grade 18 C to 0 C EP 150 0 C to 30 C EP 220 30 C to 150 C EP 320 Oil quantities Horizontally Vertically PLP 1 0 4 litre 0 4 litre PLP 15 0 6 litre 0 65 litre PLP 2 1 1 litre 0 9 litre PLP 3 3 1 litre 3 3 litre PLP 4 9 5 litre 11 3 litre CE PLP 1406 EN 12 User manual Pomac PLP Lobe pump 9 3 Dimensions
44. nto operation strictly in accordance with the instructions given in this manual e maintenance and repairs have been carried out according to the instructions given in this manual e exclusively original POMAC parts or parts provided by POMAC have been used for replacing parts e the pump has not been used for applications other than those shown in the specifications according to which the pump was sold e no changes have been made to the construction of the pump itself by the buyer e the damage is not the result of work carried out by persons not qualified or appointed e the damage has not been caused through major force Transport and receipt e Check to see if the pump has not been subject to damage during transportation If this is the case report it directly to the carrier and to POMAC e Ifthe pump is delivered on a pallet leave it on the pallet for as long as possible This facilitates internal transport Manufacturer PLP lobe pumps are manufactured by Pomac bv Feithspark 13 9356 BX Tolbert The Netherlands Tel 31 0 594 512877 Fax 31 0 594 517002 info pomacpumps com www pomacpumps com CE PLP 1406 EN 12 5 User manual Pomac PLP Lobe pump 2 Safety 2 1 General information This manual provides information necessary to prevent the installer operator from injury or discomfort during installation and operation of this pump and to ensure the correct use and reliable performance of this pump e Read thi
45. pump from the baseplate Pump types PLP 2 3 and 4 are too heavy to lift by hand Use a proper hoisting device See paragraph 4 3 for hoisting instructions 7 7 Pump disassembly 1 See the sectional drawing with parts lists in paragraph 9 4 for explanation of the item numbers Place the pump on a work bench fit to carry the weight of the pump There may still be residual product in the pump or residual oil in the gearbox Pay attention to this and place the pump in e g a shallow collecting tank Rotor disassembly 2 3 Remove the cap nuts 1 and remove the front cover 3 and the O ring 4 Unscrew the retainers 5 using the key provided and remove the retainers with O rings 6 CE PLP 1406 EN 12 27 User manual Pomac PLP Lobe pump 4 Block the rotors against co rotation using a proper fitting wooden or plastic dowel 5 Remove both rotors 35 from the shafts Shaft seal disassembly j Bomm 28 6 The rotary seal faces of the mechanical seals are fitted in the slots in the rotors already disassembled Remove these parts by lifting them carefully with e g a screwdriver Extreme care should be taken when carrying out this procedure Never use any percussive tools and do not make hammer like movements with the screwdriver Do SE following to disassemble the other parts of the shaft seal wm N On either side of the shaft insert a screwdriver into the holes in the sides of the
46. r heating 14 Safety relief valve V1 safety relief valve spring loaded V2 Safety relief valve pneumatically controlled 15 Lobes timing mechanism Ri biwing lobe with timing mechanism R2 quattro lobe with timing mechanism 16 Material options Wi pump casing lobes pump cover 1 4435 w2 lobes non galling W3 pump casing lobes pump cover Hastelloy CX2MW N26022 WA pump casing lobes pump cover 1 4571 316 TI CE PLP 1406 EN 12 User manual Pomac PLP Lobe pump 3 2 Operating principle A lobe pump is a rotary positive displacement pump The operating principle is based on the counter rotation of 2 rotors in a chamber Both rotors are mounted on shafts The shafts are supported by bearing cartridges which are directly mounted to the pump casing One of the shafts is externally driven An internal gear transmission drives the other shaft in opposite direction The rotors run synchronously in the opposite directions without touching each other When the rotors pass the suction port the volume between the rotors increases This creates a pressure decrease which causes the liquid to flow into the suction port During rotation a fixed amount of liquid is conveyed When the rotors approach the pressure port the volume between the rotors decreases This creates a pressure increase which causes the liquid to flow out of the pressure port S E E o O O 3 3 Delivery program
47. rmity to FDA X acc to client specification 7 Elastomers static O rings V Viton E EPDM N NBR S Silicon T Teflon K Kalrez VC VITON with general statement of conformity to FDA EC EPDM with general statement of conformity to FDA X acc to client specification 8 CE PLP 1406 EN 12 User manual Pomac PLP Lobe pump 8 Position connections and shaft PO connections horizontal shaft top standard P1 connections horizontal shaft bottom P2 connections vertical shaft right hand from shaft end P3 connections vertical shaft left hand from shaft end 9 Self draining execution S1 45 S2 plane S3 2x 45 10 Additional radial axial clearance between lobe and pump casing C Radial clearance at the lobe circumference and axial clearance at the rear and front side C1 0 05 C2 4 0 1 C3 4 0 15 C4 40 2 C 1 0 05 11 Internal surface treatment O1 mechanical polish to 0 8 micron O2 electro polish to 0 5 micron OS electro polish to 0 8 micron O4 mechanical polish to 0 5 micron 12 Hardened pump parts G1 pump casing lobes cover Hard inchromizing G2 pump casing cover Hard inchromizing G3 lobes Hard inchromizing G4 pump casing lobes cover Plasma nitriding G5 pump casing cover Plasma nitriding G6 lobes Plasma nitriding 13 Heating jacket H1 heating jacket on front cover H2 heating jacket on rotor case H3 H1 H2 H4 Electrical pump cove
48. rticle numbers Item Quantity Description Description PLP 1 PLP15 PLP 2 PLP 3 PLP 4 ROTARY SEAL RING L MEDIUM SIDE 700 158 001 700 258 001 700 358 001 700 458 001 EPDM 051 741 000005 051 741 000011 051 741 000021 051 741 000030 orno EES viron 051 760 000005 051 760 000011 051 760 000021 051 760 000030 mo SEAL Gees RING MEDIUM SIDE 700 158 002 700 258 002 700 358 002 700 458 002 EPDM 051 741 000004 051 741 000012 051 741 000020 051 741 000029 VITON 051 760 000004 051 760 000012 051 760 000020 051 760 000029 PE WAVE SPRING 700 150 005A 700 250 0065A 700 350 005A 700 450 005 A ni SEALSEAT SEAT 700 151 006C 1700 250 006 A 700 351 006A 700 451 006 A EPDM 051 741 000061 051 741 000044 051 741 000022 051 741 000033 Ba a VITON 051 760 000061 051 760 000044 051 760 000022 051 760 000033 EPDM 051 741 000003 051 741 000010 051 741 000017 051 741 000028 oping EM viron VITON lost 760 000003 051 760 000010 051 760 000017 051 760 000028 STATIONARY SEAL Gees RING ATM SIDE 700 158 003 700 258 003 700 358 003 700 458 003 ROTARY SEAL RING ATNI SIDE 700 158 004 700 258 004 700 358 004 700 458 003 EPDM 051 741 000001 o51 741 000008 051 741 000015 051 741 000024 oping UM VITON 051 760 000001 051 760 000008 051 760 000015 051 760 000024 SEALCOVER COVER SEALCOVER 700 150 007 700 250 007 700 350 007 700 450 007 Be ALLEN SCREW 051 000 04 012 5 051
49. s from the shafts 11 Remove the shaft sleeve or the rotating seal part from the dummy rotors and refit them in the rotors 12 Fit the rotors to the shafts fit the O rings and fit the rotor retainers with the proper torque as indicated in the table below Type Torque rotor retainers Nm PLP1 36 PLP 15 36 PLP2 62 PLP3 155 PLP4 300 13 Block the rotors against co rotation using a proper fitting wooden or plastic dowel 14 Fit the O ring into the front cover and fit the front cover to the rotor case CE PLP 1406 EN 12 User manual Pomac PLP Lobe pump 4 14 Establishing the direction of rotation y Ww operate the pump without front cover or without being connected to the piping e Before connecting the drive to the power supply the correct direction of rotation of the drive shaft must be established The pump can operate in both directions At the same time the drive shaft can have different positions See following figure to establish the correct direction of rotation of the drive shaft direction of rotation direction of rotation 4 15 Connecting the drive A The pump may never be put into operation if the coupling is not provided with a properly fitting guard When driven by an electric drive A An electric drive may only be connected to the electric power supply by a qualified electrician e Consult the locally prevailing regulations of the electricity company first before connectin
50. s manual thoroughly before installing operating or servicing this pump e Ensure that operators and maintenance staff are familiar with the contents of this manual and with the instructions given e Ensure that operators and maintenance staff are familiar with the symbols used e Follow the instructions in this manual step by step e Store this manual in a place that is known and accessible to any user 2 2 Instructions This manual contains instructions with regard to the safety of the user the continued good functioning of the pump and hints to facilitate certain actions or procedures These instructions are indicated with the following symbols A Warning Can cause injury to the user Act strictly in accordance with the instructions given j D Caution Can cause severe damage to the pump or bad functioning Closely follow the instructions given s Note Hint or instruction that can facilitate certain actions e Issues which require extra attention are printed in bold 2 3 Staff All personnel in charge of the installation operation or maintenance and overhaul of the pump should have received the necessary training 2 4 Changed application e Contact POMAC in case the pump is going to be used for other applications or in different circumstances than those specified during the initial pump selection 6 CE PLP 1406 EN 12 User manual Pomac PLP Lobe pump 3 General information 3 1 Pump identification Each pu
51. se to the shafts Push the bearings firmly and let them cool down 3 Put the shaft vertically on the spline side and place the bearing cartridge with the bearing shells onto the shaft 4 Heat the smaller bearings 16 and fit these to the shafts Push the bearings firmly and let them cool down 5 Fit a key 18 in each shaft See following table for the correct dimensions Type Size Length PLP 1 6x6 15mm PLP 15 8x7 20 mm PLP 2 10x8 25mm PLP 3 14x9 42 mm PLP 4 20x12 55 mm If quattro lobes are mounted 6 Place the gear ring over the hub of the adjustable gear Ensure the key way in the hub and the marks on the gear ring are placed opposite to each other so the key way at 12 o clock and the marks at 6 o clock 7 Apply a drop of oil on the Allen screws and screw them into the gear ring Tighten the Allen screws by hand 8 Fit the gears 17 and 29 to the shafts its marks facing towards the rear side drive side The gear with right hand helix 17 has 2 marks and must be fitted to the drive shaft 23 The gear with left hand helix 29 has 1 mark and must be fitted to the lay shaft 30 CE PLP 1406 EN 12 31 User manual Pomac PLP Lobe pump 9 Fit a tab washer 19 to each shaft 10 Fit the lock nuts 20 to the shafts Tighten them to the correct torque see following table Type Torque Nm PLP 1 1 3 Nm PLP 15 1 8 Nm PLP 2 2 0 Nm PLP 3 3 0 Nm PLP 4 5 8 Nm
52. set up of the pump unit the alignment of the coupling needs to be checked Always check the alignment after hoisting the pump unit up to its baseplate Misalignment can lead to excessive wear increased motor temperature and noise level Check the alignment using special alignment equipment or do the following 1 Place a ruler on the coupling It must be adjacent to the entire width of the coupling halves see figure 2 Repeat this check at 3 different positions around the coupling 3 Check the alignment with a pair of outside callipers at 2 diametrically opposite positions of the coupling sides see figure 4 If the measured values are outside the tolerance limits slightly loosen the retaining bolts of the drive and move the drive until the values are within their tolerance limits Fix the retaining bolts again 5 When the coupling is well aligned mount the coupling guard CE PLP 1406 EN 12 User manual Pomac PLP Lobe pump Ga 4 11 Alignment tolerances The following table with its corresponding figure shows the tolerance limits for aligning the coupling A 4 i Coupling outer A must be between MAX ANISTENGE E must be between diameter mm mm N A mar dne mm min mm 81 95 2 4 0 15 0 0 15 96 110 2 4 0 18 0 0 18 111 130 2 4 0 21 0 0 21 131 140 2 4 0 24 0 0 24 141 160 2 6 0 27 0 0 27 161 180 2 6 0 30 0 0 30 181 200 2 6 0 34 0 0 34 201 225 2 6 0 38 0 0 38
53. shaft 700 414 000 os fe Tann 08016 1008 700432000 08100 03305 700 470 000 700417000 ofpojojojojojo x x x x x x x o o0 o r o 017 o x CO o x ce CE PLP 1406 EN 12 47 9 6 48 Materials specification User manual Pomac PLP Lobe pump Description Materials Werkstoff Nr 3 Front cover AISI 316 L 1 4404 5 Rotor retainer AISI 316 L 1 4404 15 Bearing cartridge Cast steel 17 Right hand gear 34CrNiMo6 1 6582 29 Left hand gear 42CrMo4 1 7225 2s Due Shall X 2 CrNiMoN 22 5 3 1 4462 30 Lay shaft i 34 Rotor case AISI 316 L 1 4404 35 Rotor AISI 316 L 1 4404 CE PLP 1406 EN 12 User manual Pomac PLP Lobe pump 9 7 Shaft seals 9 7 1 Single mechanical seal type M1 O0 A B C D F SINGLE MECHANICAL SEAL M1 SiC SiC Article numbers E Quantity Description Description PLP 1 PLP15 PLP 2 PLP 3 PLP 4 ROTARY SEAL RING G MEDIUM SIDE 700 150 001 700 250 001 700 350 001 700 450 001 EPDM 051 741 000005 051 741 000011 051 741 000021 051 741 000030 O RING vron VTON los 760 000005 051 760 000011 051 760 000021 051 760 000030 STATIONARY SEAL RING MEDIUM SIDE 700 150 003 700 250 003 700 350 003 700 450 003 2 OOO A 9 3 E Ch Fame ees Tess Tess boss 9 as base Teesaezlssssacclasesze ess PLP1 PLP15 PLP 2 and PLP 3
54. the pump below the supply liquid level A flooded suction reduces the presence of air in the system Non return valves e In case the pump is installed above the supply liquid level fit a non return valve to the foot of the suction line to keep it filled with liquid This applies especially when low viscous liquids are conveyed CE PLP 1406 EN 12 15 4 8 4 9 4 10 bk 16 User manual Pomac PLP Lobe pump e For systems that convey liquid under vacuum a non return valve in the delivery line is recommended This prevents backflow of air or liquid Pump with safety valve If the pump is provided with a safety valve to the pump cover it is compulsory to install a pressure gauge at pressure side and a shut off valve directly after the pressure gauge e The pressure gauge must have a measuring range of at least 0 25 bar Pump unit assembly In case the pump is supplied as a single pump it needs to be assembled to a drive anda baseplate Do the following Place the pump onto the baseplate and fit it with retaining bolts Fita coupling half to the pump shaft Fit the other half to the drive shaft of the drive Fit the drive to the baseplate Leave a 3 mm gap between both coupling halves Place copper shims under the feet of the drive to bring it on a level with the pump Fix the drive 6 Align the coupling according to the following instructions akWwWND Coupling alignment After the assembly and
55. the shaft shoulder against which the rotor will rest The difference between both dimensions is called X Place the required thickness of shims 12 between the rotor case and the bearing cartridge flange to get the clearance B see table and figure below within its required clearance limits Total shim thickness X B Type Clearance B PLP 1 0 10 0 12 mm PLP 15 0 12 0 15 mm PLP 2 0 15 0 17 mm PLP 3 0 18 0 20 mm PLP 4 0 25 0 29 mm 7 A Fix the rotors 35 onto the shaft CE PLP 1406 EN 12 33 User manual Pomac PLP Lobe pump 8 Check both to ensure clearance A comes within the following values Type clearance A PLP 1 0 08 0 14 mm PLP 15 0 095 0 175 mm PLP2 0 12 0 20 mm PLP 3 0 15 0 23 mm PLP 4 0 25 0 43 mm Bolts of bearing bracket and pump casing Tightening torque Nm PLP 1 M 6x25 7 5 Nm PLP 15 M8x35 20 Nm PLP2 M10x45 36 Nm PLP3 M12x60 63 Nm PLPA M16x70 155 Nm 9 If clearance A does not correspond with these values add or remove a shim 10 When the clearances A and B are within their limits tighten all bearing cartridge bolts 11 Disassemble the rotors CE PLP 1406 EN 12 User manual Pomac PLP Lobe pump 7 12 Shaft seal assembly 7 12 1 Single mechanical seal assembly types M1 M3 and M4 See paragraph 9 5 1 for drawing and part list with item numbers 1 2 3 4 5
56. ts list 7 18 38 OONDOARWND Fit the O rings 10 and 11 around the plunger 1 using some food compatible grease Put the plunger flat down and fit the spacer bush 2 in the plunger Fit the O ring 9 inside the intermediate ring 4 using some food compatible grease Fit the intermediate ring to the spacer bush Fit the O ring 12 around the piston 3 using some food compatible grease Fit the piston to the spacer bush and fit the Allen screw 14 Put the pump cover flat down and place the entire subassembly in the pump cover Fit the O ring 13 in the groove of the intermediate ring using some food compatible grease Fit the safety valve casing 5 over the piston 10 Fit the fixation screws 7 to fix the entire assembly to the pump cover 11 Fit the O ring mount the pump cover to the pump and fix it with the cap nuts 12 Setting the air pressure on of the safety valve must be carried out on site during process conditions See paragraph 5 3 Filling with oil See paragraphs 9 1 and 9 2 for recommended oil types and quantities Unscrew the oil fill plug Fill the gearbox with oil till it shows at the centre of the oil sight glass Check the oil level after a couple of minutes Top up if necessary Fitthe oil fill plug OPOD CE PLP 1406 EN 12 8 1 8 2 Bomm 8 3 User manual Pomac PLP Lobe pump Closing down Dismantling See paragraph 7 6 for dismantli
57. ual e the type code this can be found on the pumps type plate and on the first page of this manual e the item numbers the numbers and when known the parts numbers of the required parts Chapter 9 shows a sectional drawing and parts list of the pump with the item numbers referred to Rotors and gears are always supplied in pairs N 2 Safety measures Never allow the pump to run without the front cover or without being connected to the piping Ensure the drive is shut down when performing maintenance work Prevent it from being switched on again unintentionally Wear protective gloves and safety glasses in case the pump conveys liquids which are a health hazard maintenance Allow the pump to cool down first when a heating jacket is fitted or when it conveys hot liquids AA the pump is depressurized when it has to be disassembled in order to carry out Disassembly of a safety valve may ONLY be done WITH SPRING PRESSURE RELEASED on a shut down pump which is cooled down and vented 7 3 Special tools Rotor retainer spanner Type Rotor retainer spanner PLP 1 700 135 000 PLP 15 700 135 000 PLP 2 700 235 000 PLP 3 700 335 000 PLP 4 700 435 000 Dummy rotor Type Dummy rotor PLP 1 700 112 000 PLP 15 700 512 000 PLP 2 700 212 000 PLP 3 700 312 000 PLP 4 700 412 000 26 CE PLP 1406 EN 12 User manual Pomac PLP Lobe pump 7 4 Draining the pump
58. ve IS opened obstructions check piping system for pressure loss CE PLP 1406 EN 12 63 User manual Pomac PLP Lobe pump Index Adjusting the clearance 30 Alignment tolerances 17 Allen screw 27 30 34 Application area 10 bearing cartridge 10 27 28 30 31 brass sheet 34 Built in dimensions 14 cap nut 18 19 25 34 Changed application 6 Checking 21 circulating 22 clearance 30 31 Closing down 36 Connecting the drive 20 Construction 11 Coupling alignment 16 Delivery program 10 differential pressure 12 Dimensions 38 Disassembly 24 Dismantling 25 36 Dismantling the pump 25 Disposal 36 Double mechanical seal 10 32 47 48 Double mechanical seal assembly 32 Double O ring 10 51 52 Draining the pump 25 drive shaft 16 20 27 28 feeler gauge 34 Filling 35 Fitting additional connections 17 flush 18 21 22 Flushing the system 18 foot 15 Foundation 14 front cover 18 19 20 24 25 34 gasket 27 34 Gearbox assembly 27 gearbox cover 27 34 General information 5 6 7 13 General survey 23 heating jacket 9 18 22 24 25 Hoisting 13 In operation 22 Installation 13 Introduction 5 key 25 27 28 lay shaft 28 Lip seal 10 33 53 54 Lip seal assembly 33 liquid temperature 22 lock nut 27 29 Maintenance 23 Manufacturer 5 mechanical seal 8 10 26 32 45 46 47 48 Oil 20 23 25 37

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