OPERATING INSTRUCTIONS
Contents
1. In the version with a double mechanical seal S two single mechanical seals are installed back n X lu WS to back Standard products use synthetic M eer PP S carbon and 99 5 aluminium oxide for the seal DS pe faces PTFE covered FEP O rings for the d stationary seals and 1 4571 stainless steel for T TN Az e the spring and construction materials of the I N pump Many other materials can be used Willa Always operate double mechanical seals only in conjunction with a suitable seal supply system to ensure that there is always an adequate circulation of liquid for lubrication and cooling The parameters for the seal supply system must be within the following values Flow 1 to 6 l min e System pressure max 16 bars e Temperature 30 C to 200 C e Viscosity max 3500 mPas Observe the requirements of the specification and operating manual for the seal supply system The connection to the seal supply system must be as shown in the following illustrations In potentially explosive atmospheres the flow through the seal supply system must always be monitored Failure of the seal supply system leads to overheating of the seals and exceeding of the maximum permissible surface temperature Magnetic coupling The magnetic coupling gives the pump a he2. 79 19 stuffingbox 5 708047 708047 708036 4x packing 718154 718154 718161 Table 9 2 1 Gears made from different materials can be used in any combination There must always be 2 gears in a pump We recommend the combinations 2xW 1xW 1xT 2xT 1xH 1xT Other combinations are possible in theory but they can seriously reduce the service life of the pump in certain circumstances W Gear made from W88 1 Gear made from PTFE H Gear made from Hastelloy Pumpenfabrik Ernst Scherzinger GmbH amp Co KG Bregstr 2325 78120 Furtwangen Germany Tel 49 0 77 23 65 06 0 Fax 65 06 40 E Mail info scherzinger de SOGHERZINGER am Spare parts lists PUMP TECHNOLOGY 9 2 2 Spare parts list Hastelloy C4 Pumps Feather key 707083 707083 on request Feather key 707082 707082 on request Mechanical 1 seal 19 Stuffingbox 5 708047 708047 708036 4x packing 718154 718154 718161 Table 9 3 35000 HC4 35050 HC4 35100 HC4 35150 HC4 35300 HC4 35350 HC4 s cm s J cm nem Description No 1L 35011 002 01 35011 002 01 35311 002 01 35011 005 00 35011 005 00 35311 005 00 35011 006 00 35011 006 00 35311 006 00 ail Gearw 35000 007 00 35100 007 00 35300 007 00 Ger 35000 007 01 35100 007 01 35300 007 01 Gern 35000 007 02 35100 007 02 35300 007 02 Bearing insert 4 35000 35000 35100 35100 35300 35300 E
3. OP y 5 2 2 Setting up installation Information about the operating location Sufficient room for maintenance and servicing works must be ensured when selecting the operating location It should be possible to remove and re install the pump without difficulty Do not install in aggressive atmospheres First set up Checks before set up starts You must check not only the type of protection class of the pump but also the type of protection class of all attached components The name plates of the individual components are important The type of protection for the component with the lowest protection class always applies for the operation in potentially explosive atmospheres Before starting carry out a visual check for transport damage on the pump delivered by us see Section 3 2 Then check on the basis of the following points whether the delivered pump type is suitable Corrosion behaviour of the liquid Viscosity of the liquid Liquid to be pumped Pump performance flow rate Model type and design Direction of rotation and or position of suction pressure sides If you note any differences between the pump design you require in your system and the pump delivered by us please contact us immediately Do not operate the pump before checking with us Screw the pumps pump units only on to the mounts provided The installation location must be level Level out any unevenness near the attachment points using su
4. 23 7 4 Stuffing box packing Me SA AS RB 9L 8 RR H Se 24 T A ul nette reell en 24 7 6 Disassembly and reassemblv ener tnn enne neni inttr inner neni ness annann nennen 24 8 Malfunctions causes and rectification 2 uuuu22220202200000n0nnnanannnnnnnnnnnnnnnnannnnnnnnnnnnnnannnnnnnnnnnnnnannnnnnnnn 25 Pumpenfabrik Ernst Scherzinger GmbH amp Co KG Bregstr 2325 78120 Furtwangen Germany Tel 49 0 77 23 65 06 0 Fax 65 06 40 E Mail info scherzinger de S HERZINGER 3 J Table of contents PUMP TECHNOLOGY 9 EICH CT c 27 9 1 Process pumps with magnetic coupling esses ennemis nnne 27 Qi Te SPAle Parts MSU sez c 27 9 1 2 ele KEE 28 9 2 Stainless steel and Hastelloy foot pumps ssssssssssssseseenenneenenne nnne nennen nnne nnne nennen 29 9 2 1 Spare parts list Stainless steel 29 9 2 2 Spare parts list Hastelloy C4 PUMPS entente enne nint nre nennen 30 aces 31 je IEnDIEe MM Im c 32 Declaration of Conformity ATEX 95 nuuuusnannnnannnnnnnnnnnnnnnnannnnnnnnnnnnnnnnannnnnnnnnnnnnnnannnnnnnnnnnnnnnnnnnnnannnnnannnnnnnnannnnnannnnnn 33 Declaration of Conformity Machinery Directive unsunnsssnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn
5. Fax 65 06 40 E Mail info scherzinger de S HERZINGER mu Deseriptionofihe pump PUMP TECHNOLOGY 4 2 2 4 2 3 4 2 4 Flow directions All the pumps in this series operate independently of the direction of rotation i e the direction of rotation is fully variable However a change of direction of rotation results in a changeover of the suction and pressure sides The following typical illustration applies for all seal types Stuffing box packing seal is used mainly with higher viscosity media 1 000 mm s When it wears to the extent that the liquid leaks out it can simply be retightened The Stuffing box packing is made from soft but wear N resistant sealing material with good sliding properties The x N m sealing ring is compressed into the space provided for it in T N SS SS i the pump cover by means of a tightening screw and so is i pressed against the cover and the drive shaft This type of ae IN SSE Pumps with stuffing box packing cannot be used in potentially explosive atmospheres because of the large amount of heat they generate from friction A Single mechanical seal The installed mechanical seals function independently of the u direction of rotation and are unbalanced Standard products SS e use synthetic carbon and 99 5 aluminium oxide for
6. S HERZINGER PUMP TECHNOLOGY Process Gear Pumps Series 35000 35350 2004 Scherzinger Pump Technology Version 1 1 Date 17 08 2004 Author Thomas King Checked Dieter Ebner S HERZINGER on Tab le of contents PUMP TECHNOLOGY 0 Table of contents 0 Table of ET EE 2 1 General iarsiu nani aduaine dannau geed 4 SD RE E E E T E T A E NE E E E T N E E A T 4 1 2 Product Information EE 4 1 3 PUMP E Ee TEE 4 WA Overseas O TICOS EE 6 2 Eri M 7 2 1 Labelling of instructions in the operating manual 7 2 2 Staff qualification and training EE 7 2 3 Dangers of non compliance with safety instructions ersnsussnnennnnnennnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn nn 7 2 4 Wotking safely EE 7 2 5 Safety instructions for the operating Company 7 2 6 Safety instructions for servicing maintenance inspection and assembly work 8 2 7 Unauthorised conversion and production of replacement Darts te 8 2 8 Improper modes of operation sssssssssssssssessseeeee enne ener senem en ren nnn sn nrnr entrer enne sans sn tenn nn 8 3 Transportation and interim storage esee sees eeeeeee enne nnne nnne nennen nennen annnm nnns nennen inne nnns 9 3 1 Shipment of the pumps and protection measures ener nnns tenen nnne nes 9 c Enc de ce C EE 9 33 MEM Re EE 9 3 4 Conservation for storage after operaton ne
7. Germany Tel 49 0 77 23 65 06 0 Fax 65 06 40 E Mail info scherzinger de SCHERZINGER o General PUMP TECHNOLOGY Flow rate of pump series 35000 35050 in litres per minute l min Differential pressure bar 0 1 2 3 4 5 6 7 8 9 10 4001 min 47 42 3 7 3 2 27 2 2 17 12 690 1 min 81 7 6 7 1 66 6 1 5 6 51 46 41 36 31 930 1 min 11 10 5 10 9 5 9 8 5 8 7 5 7 6 5 6 1400 1 min 16 5 16 155 15 14 5 14 13 5 13 125 12 11 5 Table 1 1 Speed Flow rate of pump series 35100 35150 in litres per minute l min Differential pressure bar 0 1 2 3 4 5 6 7 8 9 10 400 1 min 10 9 10 2 9 5 88 81 7 4 6 7 6 53 46 39 690 1 min 18 7 17 17 3 16 6 15 9 15 2 14 5 13 8 13 1 12 4 11 7 930 1 min 25 2 24 5 23 8 23 1 22 4 21 7 21 20 3 19 6 18 9 18 2 1400 1 min 38 37 3 36 6 35 9 35 2 34 5 33 8 33 1 32 4 31 7 31 Table 1 2 Speed Flow rate of pump series 35300 35350 in litres per minute l min Differential pressure bar 0 1 2 3 4 5 6 7 8 9 10 400 1 min 25 23 21 19 17 15 13 11 9 7 5 690 1 min 43 41 39 37 35 33 31 29 27 25 23 930 1 min 58 56 54 52 50 48 46 44 42 40 38 1400 1 min 87 85 83 81 79 77 75 73 71 69 67 Table 1 3 Speed the above tables apply for e
8. The threaded connection between the pump and motor must be made from electroconductive material e g steel Never install a motor pump in a constricted installation location without sufficient ventilation as the motor may be poorly cooled and could overheat The electrical connection of the motors must be implemented in accordance with the guidelines issued by the VDE and the local power supply company The operating manual supplied with the motors must also be complied with Earth the motor using the terminal provided EI 6 To achieve the highest possible torque particularly under heavy motor loads three phase motors should be connected in a delta circuit check available mains voltage 5 2 4 Connection pipes Prior to connecting the suction and pressure pipes check that the connection flanges of the pipework match those of the pump Pumpenfabrik Ernst Scherzinger GmbH amp Co KG Bregstr 2325 78120 Furtwangen Germany Tel 49 0 77 23 65 06 0 Fax 65 06 40 E Mail info scherzinger de SGHERZINGER 16 sSettingup installation PUMP TECHNOLOGY OPO Ol No stress or torque shall be exerted on the pump from the connection pipes and it may be necessary to support the connection pipes directly in front of the pump ports Similarly no force arising from thermal expansion shall be exerted on the pump The connection pipelines must be of adequate size They shall not be smaller than the nominal
9. 0 bar negative suction pressure e 20 C liquid temperature e 5mm s liquid viscosity Relationship of the maximum permissible speed to the viscosity of the liquid Viscosity mPas 1 3 10 30 100 300 1 000 3 000 10 000 30 000 100 000 Max speed 1 min 1800 1800 1800 1800 1800 1800 1800 1000 350 140 20 Table 1 4 Parts in contact with Casing parts and shafts 1 4581 SS316 the liquid Hastelloy C4 only in conj with c d or e Gears optionally 8 Drive gear W88 Idler gear W88 b Drive gear W88 Idler gear PTFE c Drive gear PTFE Idler gear PTFE d Drive gear HC4 Idler gear HC4 e Drive gear HC4 Idler gear PTFE Shaft bearings optionally f Graphite bearing g Silicon carbide tungsten carbide Shaft seals optionally Stuffing box packing Single mechanical seal Pumpenfabrik Ernst Scherzinger GmbH amp Co KG Bregstr 2325 78120 Furtwangen Germany Tel 49 0 77 23 65 06 0 Fax 65 06 40 E Mail info scherzinger de S HERZINGER o General PUMP TECHNOLOGY Double mechanical seal Magnetic coupling only in conj with g Pump media See resistance list for the materials mentioned above Drive Foot pumps are supplied without electrical drives Motor driven pumps with magnetic coupling and foot pumps mounted on a base plate can be fitted with almost any commercially available standard motor 230V single phase 400V three phase Ex motors 50 60Hz In the event of
10. for inspection and or repair accompanied by this clearance certificate Type Pump number Delivered Reason for repair Reason continued O have not been used with hazardous liquids O have come into contact with liquids requiring special labelling or with liquids polluted by hazardous substances Specify last liquid pumped Prior to dispatch delivery the pump was emptied carefully and cleaned thoroughly inside and out The cleaning process was conducted in accordance with the appropriate operating manual O Special safety precautions are not necessary for subsequent handling O The following safety precautions are necessary with regard to flushing liquid and disposal We confirm that the details given above are correct and complete and that the goods were dispatched in accordance with applicable legal provisions Company Name Street Position City Phone Country Fax Date Company stamp signature For safety reasons pumps supplied without this completed safety data sheet cannot be inspected or re paired Pumpenfabrik Ernst Scherzinger GmbH amp Co KG Bregstr 2325 78120 Furtwangen Germany Tel 49 0 77 23 65 06 0 Fax 65 06 40 E Mail info scherzinger de SGHERZINGER m Declaration of Conformity ATEX 95 PUMP TECHNOLOGY Declaration of Conformity ATEX 95 with the provisions of Directive 94 9 EC In accordance with EU Directive 94 9 EC dated 23 March 1994 and the legis
11. ko OU NN UNE LES kel kel oco kel kel Jos Bearing 7 7 010 02 010 02 010 02 010 02 010 02 010 02 6 2 Bearing insert 4 35000 35000 35100 35100 35300 35300 pL el kel Let ose KI foi 8 Paralelpin 2 701094 701094 701095 s awe 701006 ewe ze Screw Speer wer qus cen ues qe screw request request 14 707080 707083 on request 15 Feather key 707081 707081 on request 16 17 8 1 708147 708147 on request z gt 1 Gears made from different materials can be used in any combination There must always be 2 gears in a pump We recommend the combinations 2xW 1xW 1xT 2xT 1xH 1xT Other combinations are possible in theory but they can seriously reduce the service life of the pump in certain circumstances W Gear made from W88 T Gear made from PTFE H Gear made from Hastelloy Pumpenfabrik Ernst Scherzinger GmbH amp Co KG Bregstr 2325 78120 Furtwangen Germany Tel 49 0 77 23 65 060 Fax 65 06 40 E Mail info scherzinger de S HERZINGER Spare parts lists PUMP TECHNOLOGY 9 2 3 Exploded view Foot pump with mechanical seal and ceramic sleeve bearings 35xxx GLRD SC Pumpenfabrik Ernst Scherzinger GmbH amp Co KG Bregstr 2325 78120 Furtwangen Germany Tel 49 0 77 23 65 06 0 Fax 65 06 40 E Mail info scherzinger de S HERZINGER 32 J Cearance Certificate PUMP TECHNOLOGY Cearance Certificate The pump and accessories sent to us
12. one or more of the critical values specified in this section being exceeded ask the manufacturer whether he can approve these operating conditions If not then the pump must be modified to suit the application otherwise the pump or the system into which the pump is integrated may become damaged or destroyed 1 4 Overseas offices A list of addresses showing our offices worldwide is available This can be requested from the manufacturer or found on the Internet at www scherzinger de For the most part these are sales branches although some also carry out repairs and servicing but the majority of this work is implemented at the main factory in Furtwangen Pumpenfabrik Ernst Scherzinger GmbH amp Co KG Bregstr 2325 78120 Furtwangen Germany Tel 49 0 77 23 65 06 0 Fax 65 06 40 E Mail info scherzinger de S HERZINGER 7 Safety PUMP TECHNOLOGY 2 1 2 2 2 3 2 4 2 5 Safety Comply with the general safety instructions listed in this Safety section and also with the special safety instructions listed under the other main sections Labelling of instructions in the operating manual The safety instructions contained in this operating manual that may create danger if not complied with are specially labelled as follows Non compliance poses danger to life and limb AN Non compliance poses danger of electrical shock These instructions must be complied with at all times for explosi
13. or neutralising solution do not use a corrosive liquid for several minutes After any cleaning has been completed the pump should be flushed again with water Switch off the drive unit Shut off the heating circuit for the heating jacket If present close the shut off valves upstream and downstream of the pump Close the shut off valves only if the pump will stand still for a longer period of time for automatic equipment only when the whole system is taken out of operation If the standstill is to be a long one drain the pump completely Removal from the system Make sure that the steps described in Section 6 5 have been carried out Check that there is no pressure at the inlet and outlet or in the heating circuit Drain the pump completely Drain the heating circuit completely Disconnect the drive unit from the electricity supply Remove the connections to the pump and the heating jacket If necessary clean the pump as described in Section 3 4 Pumpenfabrik Ernst Scherzinger GmbH amp Co KG Bregstr 2325 78120 Furtwangen Germany Tel 49 0 77 23 65 06 0 Fax 65 06 40 E Mail info scherzinger de S HERZINGER ss Meintenance PUMP TECHNOLOGY 7 1 7 3 Maintenance General information Regular servicing as described in Section 7 3 must be carried out Servicing is also required when the pump is to be stored the pump is to be unused for an indeterminate period the pump no lon
14. size of the pump connections On the suction side one nominal size bigger than the nominal size of the suction connection on the pump is recommended The approximate values for the maximum flow velocities in the pipes are up to 200 mm s up to 600 mm s up to 2000 mm s Suction pipe 1 5m s 0 5m s 0 2m s Pressure pipe 3 0m s 1 0m s 0 5m s Table 5 2 To protect the pump from damage caused by solids in the liquid we recommend a 50 micron filter in the suction piping Be sure the filter does not cause a serious pressure drop Suction piping should be as straight and direct as possible to the pump with a minimum number of elbows We recommend using long radius elbow type The suction pipe should have a continuous rise to the pump If it is necessary to install the piping rising and descending there must be a provision to purge air at the highest points of the piping Once the pipes have been fitted check that they are free from deposits swarf or similar impurities as otherwise damage to the pump may result when the unit is put into operation Ensure that all pipes fittings and screw joints are perfectly sealed If this is not the case gas may enter the pump on the suction side The pump will no longer suck properly The liquid may escape on the pressure side Dry running may lead to heat build up or spark generation in the pump If a suction height of 3 m is reached the installation of a check valve in the suction pipe is re
15. the seal rm Va H faces PTFE covered FEP O rings for the stationary seals and 1 4571 stainless steel for the spring and construction materials of the pump Many other materials can be used S S A mechanical seal must be continuously moistened with liquid IN so that dry running and the consequent destruction of the seal faces through overheating are avoided Some of the liquid circulates in the pump between the shaft bearings shaft and the sealing space and lubricates and cools the mechanical seal located there In normal circumstances this internal circulation of the liquid is sufficient for lubrication and cooling Mechanical seals are not to be used in continuous operation with media with viscosities greater than 3500 mPas in the mechanical seal area In the event that the pumps are installed in potentially explosive atmospheres their safety must be ensured by the provision of a more extensive forced circulation system This can be done by connecting the quench connection in the area of the seal externally to the suction side of the pump In addition the temperature of the liquid on the pressure side must be monitored The values given in Table 6 3 apply Pumpenfabrik Ernst Scherzinger GmbH amp Co KG Bregstr 2325 78120 Furtwangen Germany Tel 49 0 77 23 65 06 0 Fax 65 06 40 E Mail info scherzinger de S HERZINGER 111 192 Bescripiionofthepump PUMP TECHNOLOGY 4 2 5 4 2 6
16. 1 Pumpenfabrik Ernst Scherzinger GmbH amp Co KG Bregstr 2325 78120 Furtwangen Germany Tel 49 0 77 23 65 060 Fax 65 06 40 E Mail info scherzinger de S HERZINGER LU 28 Spare parts lists PUMP TECHNOLOGY 9 1 2 Exploded view Pumpenfabrik Ernst Scherzinger GmbH amp Co KG Bregstr 2325 78120 Furtwangen Germany Tel 49 0 77 23 65 06 0 Fax 65 06 40 E Mail info scherzinger de SCHERZNGER_ nm Spare parts lists PUMP TECHNOLOGY 9 2 Stainless steel and Hastelloy foot pumps 9 2 1 Spare parts list Stainless steel Description Ne 14 35050 001 00K 35050 001 00K La cover asveovoz00 se00000200 95000 00200 35000 002 01 35000 002 01 35300 002 01 35000 005 00 35000 005 00 35300 005 00 35000 006 00 35000 006 00 35300 006 00 50 Gearw 35000 007 00 35100 007 00 35300 007 00 Gear 35000 007 01 35100 007 01 35300 007 01 GearH 35000 007 02 35100 007 02 35300 007 02 Bearing insert 4 35000 35000 35100 35100 35300 35300 010 00 010 00 010 00 010 00 010 00 010 00 6 1 Sleeve bearing 4 35000 35000 35100 35300 35300 010 02 010 02 010 02 010 02 010 02 6 2 4 Bearing insert 8 Parallel pin 701094 701094 701095 10 Hex head cap 16 702233 702233 702264 Screw G ss a __ 9 em ms 12 Headless serew Drm ome Jee Jet es Je Pia semm 1 1 rosa ma om Tie ueenaneasea _ 7e 799
17. 34 C 4 200 C 158 C 93 C 58 C 43 C gt 4 200 C 164 C 99 C 64 C 49 C Table 6 1 Maximum permissible surface temperatures for pumps with magnetic couplings for pump sizes 35000 ZFMKSC M 35000 ZFMKK M 35000 ZMKSC M made from Hastelloy C4 Pumpenfabrik Ernst Scherzinger GmbH amp Co KG Bregstr 2325 78120 Furtwangen Germany Tel 49 0 77 23 65 06 0 Fax 65 06 40 E Mail info scherzinger de S HERZINGER PUMP TECHNOLOGY 20 Start Up shut Down specific Maximum pressure side liquid temperature p thermal for use in temperature class umps speed pon din Temperature class of the gas or vapour e liqui kJ kg K T1 T2 T3 T4 T5 T6 lt 1 200 C 166 C 101 C 66 C 51 C lt 2 200 C 167 C 102 C 67 C 52 C 600 1 min 4 200 C 168 C 103 C 68 C 53 C gt 4 200 C 169 C 104 C 69 C 54 C 1 200 C 162 C 97 C 62 C 47 C lt 1200 1 min lt 2 200 C 165 C 100 C 65 C 50 C lt 4 200 C 167 C 102 C 67 C 52 C gt 4 200 C 168 C 103 C 68 C 53 C lt 1 200 C 154 C 89 C 54 C 39 C 1800 1 min 2 200 C 159 C 94 C 59 C 44 C lt lt 4 200 C 164 C 99 C 64 C 49 C gt 4 200 C 167 C 102 C 67 C 52 C Table 6 2 Maximum permissible surface for pumps with magnetic couplings for pump sizes 35100 ZFMKSC M 35100 ZFMKK M 35100 ZMKSC M made from stainless steel and pumps wi
18. 65 06 0 Fax 65 06 40 E Mail info scherzinger de SOHERZINGER_ 5 Settingup installation PUMP TECHNOLOGY D op Dimensions mm Lockin ROTEXO on General Geck d min H max L 2 E b s DH dH D N G t 19 0 25 66 25 16 12 2 40 18 40 M5 10 24 0 35 78 30 18 14 2 55 27 55 M5 10 28 0 40 90 35 20 15 2 5 65 30 65 M8 15 38 38 45 164 70 24 18 3 80 38 78 62 M8 15 Table 5 1 Mounting the coupling e Push the hubs 1 on to the shafts of the drive and the pump e Set the E dimension by axially moving the hubs on the shafts e Secure the hubs by tightening the set screws 3 DIN 916 Ensure when mounting that the E dimension is maintained so that the coupling sleeve can move axially in operation Ensure that sufficient distance is retained axially to the fixed components of the pump motor and coupling guard We recommend a minimum distance of 5 mm If the use is in potentially explosive atmospheres the screws and set screws used to hold the hub must be additionally secured against self loosening e g by bonding with Loctite liquid strength or similar means of thread locking 5 2 3 Electrical drives When mounting the motor do not introduce any insulating elements between the pump adapter and the motor
19. arantee that the pumps are in perfect condition at the time of delivery and are dispatched in suitable packaging Upon receipt you must inspect the pumps immediately for any transportation damage If you notice any damage report it immediately to the carrier and Scherzinger Pump Technology Interim storage The following points must be noted for storing the pumps e Do not store the pumps in wet or damp rooms e Leave protective plugs screwed in or insert them yourself e Corrosion protection measures must be implemented for metal blank parts if storage is to be for longer than 6 months e The storage rooms must not contain any ozone generating devices such as e g fluorescent lights mercury vapour lamps and high voltage electrical devices e It must be ensured that condensation cannot occur The relative air humidity should be below 6596 Conservation for storage after operation The pump must be prepared for storage in a way appropriate to the liquid being pumped When media without toxic or aggressive additives are being pumped a brief flush with water at low speed without differential pressure increase will suffice When toxic or aggressive media are being pumped however the pump must be cleaned so as to enable any subsequent maintenance work to be carried out without any risk to the health of the personnel carrying out the work Flush the pump on liquid speed with a neutralising liquid Then any parts that are not fully cleaned by t
20. be installed directly downstream of the pump The flow controller must not create a noticeable back pressure in case of damage A float or flat type flow meter is preferred If the delivery rate of the gear pump falls to 20 of the theoretical flow rate the pump must be stopped immediately This is an obvious sign of wear The pump must be stopped immediately The value of 20 of the theoretical flow rate can be calculated as follows Van H Qineo2o theo20 5000 Qineczo 20 of the theoretical flow rate in Ipm n Drive speed in rpm Vg Pump displacement see following table Pumpenfabrik Ernst Scherzinger GmbH amp Co KG Bregstr 2325 78120 Furtwangen Germany Tel 49 0 77 23 65 06 0 Fax 65 06 40 E Mail info scherzinger de S HERZINGER rm Sint Up shut Down PUMP TECHNOLOGY Volumetric flow rate min always to be achieved Displacement vgp e g at the following speeds 730 1 min 970 1 min 1450 1 min Pump size e 35000 35050 11 2 cm U 1 3 l min 3 2 l min 3 3 l min Pump size s 1 35100 35150 24 8 cm U 3 6 l min 4 8 l min 7 2 l min Pump size 35300 35350 60 7 cm U 8 8 l min 11 8 l min 17 6 l min Table 6 5 Take note of the advice relating to seals in Sections 4 2 3 to 4 2 6 Make sure that there is no potentially explosive atmosphere 6 5 Shut down When liquids which could be hazardous to health have been pumped flush the pump thoroughly with a suitable cleaning
21. commended The valve ensures that no liquid flows back through the pump and that the suction pipe does not empty when the pump is switched off Gear pumps must not be operated against a closed valve or a system that is closed on the discharge side as this could lead to the build up of hazardous pressure rise A pressure relief device must always be installed e g a pressure relief valve If it can happen that the pump must work against a closed system a relief valve must be installed directly downstream of the pump on the discharge side The return pipe must not be directly fed to the suction side but must return to the tank If the pump is used in a potentially explosive atmosphere you should install a check valve in the suction line immediately upstream of the pump which will prevent the pump from emptying during standstills and dry running upon starting up again The pipe directly downstream of the pressure side should be laid with a rising gradient at least for a short distance Please note that with this installation situation the inlet pressure is equal to the outlet pressure when the pump is at a standstill Please note the max system pressure on the pressure side refer to Section 1 3 Pumpenfabrik Ernst Scherzinger GmbH amp Co KG Bregstr 2325 78120 Furtwangen Germany Tel 49 0 77 23 65 06 0 Fax 65 06 40 E Mail info scherzinger de S HERZINGER_ rm sSettngup installation PUMP TECHNOLOGY For installatio
22. damage and any damaged parts must be replaced The pump may only be operated again after it has been completely filled and the electrical earth restored Monitoring We recommend for pressure monitoring purposes that a pressure monitoring device is installed on the suction side depending on the operating conditions inlet pressure or vacuum and that a pressure measuring device that meets the operating requirements is installed on the pressure side Stay within the parameters of the pump data given in Section 1 3 otherwise the pump may become damaged The liquid temperature should be monitored on the pressure side The pump may develop leaks or be destroyed if the permissible temperature range of the seal materials is not observed see Section 1 3 Pumpenfabrik Ernst Scherzinger GmbH amp Co KG Bregstr 2325 78120 Furtwangen Germany Tel 49 0 77 23 65 06 0 Fax 65 06 40 E Mail info scherzinger de SOHERZINGER_ 9 StatUp shutDown PUMP TECHNOLOGY If pumps with magnetic couplings or pumps with single mechanical seals are used in potentially explosive atmospheres particular consideration must be paid to the heat transferred into the liquid and the increase in temperature of the pump surface in the area of the shaft seal To avoid exceeding a critical surface temperature the temperature of the liquid must be monitored directly at the pump discharge The surface temperature to be expected depends greatly on t
23. e 23 25 D 78120 Furtwangen declares that the pumps Type Process gear pump Series 35000 35350 without drive in the model supplied by us without a drive engine is intended for installation in a machine or for assembly with other machines for a machine system and that operation thereof is prohibited until such time as it has been established that the machine system into which this pump is to be installed or with which this pump is to be assembled complies with the provisions of Directive 98 37 EC The following harmonised standards were applied EN ISO 12100 T1 EN 294 EN 809 DIN EN 13463 1 EN ISO 12100 T2 EN 563 E DIN EN 13463 5 Furtwangen 29 September 2003 c AA i Dipl Ing Erich Willimsky Managing Director Pumpenfabrik Ernst Scherzinger GmbH amp Co KG Bregstr 2325 78120 Furtwangen Germany Tel 49 0 77 23 65 06 0 Fax 65 06 40 E Mail info scherzinger de ART OF HIGHTECH Scherzinger Pump Technology Bregstrasse 23 25 78120 Furtwangen Germany Tel 49 0 7723 6506 0 Fax 49 0 7723 6506 40 web www scherzinger de email info scherzinger de
24. elloy steel steel 7 Nm 14 Nm Speed 7 Nm 14 Nm 300 1 min 27W 54 W 15W 31W 600 1 min 54 W 108 W 31W 61 W 900 1 min 82 W 163 W 46 W 92 W 1200 1 min 108 W 217 W 61 W 123 W 1500 1 min 135 W 271 W 77 W 153 W 1800 1 min 163 W 325 W 92 W 184 W Table 4 1 A large proportion of the heat is taken away by the internal circulation of the liquid and the outside surfaces of the magnetic coupling and pump The residual heat remains in the area of the magnetic coupling In the uncoupled condition the pump is only to be run for a maximum of 30 seconds Longer running times will overheat and destroy the magnetic coupling Do not operate the pump in the uncoupled condition in a potentially explosive atmosphere The complete drive output of the motor will be converted into heat and overheat the coupling within a few seconds The maximum permissible surface temperature could be exceeded giving rise to a potential danger of ignition When being operated in a potentially explosive area the flow through the pump must be monitored If the flow falters it is highly probable that the magnetic drive has uncoupled The drive must be brought to a standstill immediately see Section 6 4 Pumpenfabrik Ernst Scherzinger GmbH amp Co KG Bregstr 2325 78120 Furtwangen Germany Tel 49 0 77 23 65 06 0 Fax 65 06 40 E Mail info scherzinger de SGHERZINGER mu sSettingup installation PUMP TECHNOLOGY 5 1 5 2 5 2 1
25. erating manual please contact Scherzinger Pump Technology If you require help please specify precisely the pump type and series number for which you require the information The pump type Typ year of manufacture Bj and serial number Nr can be found on the name plate Product information This operating manual applies to pumps of types 35000 35100 35300 35050 35150 35350 35000 MK 35100 MK 35300 MK 35050 MK 35150 MK and 35350 MK with and without motor from year of manufacture 2003 manufactured by Ernst Scherzinger GmbH amp Co KG 78120 Furtwangen Germany The pumps are numbered consecutively The title page of this operating manual displays the issue date and the operating manual edition The motor pumps described in this operating manual conform to the applicable EU standards and are permitted to bear the CE mark Pump data Max differential pressure increase 10 bars Max system pressure pressure side 16 bars Max negative suction pressure 0 4 bar Max pressure in heating jacket 25 bars Operating temperature 30 to 200 C with W88 gears 10 to 50 C with PTFE gears Viscosity range 1 0 to 20 000 mPas mm s Range of speed 0 to 1800 Jay Noise level 75 dB A Speed 1750 min Operating pressure 2 bars Operating temperature 20 C Pump liquid 1 mm s non lubricating Dimensions see appropriate data sheets Pumpenfabrik Ernst Scherzinger GmbH amp Co KG Bregstr 2325 78120 Furtwangen
26. ger meets the key data described in Section 1 3 a different liquid is to be conveyed leakage occurs in the pump a malfunction as described in Section 8 occurs We recommend that repair work is to be carried out by the manufacturer at the factory Ensure that the pump is flushed with a safe liquid before maintenance work is carried out refer to Section 3 4 The accompanying clearance certificate must be filled out completely before shipping the pump Defective pumps without clearance certificates will not be accepted Preparation Ensure that the entire drive train is secured against unintended start up before mounting or servicing the pump Serious injury can be caused by rotating parts It is essential to read and comply with the safety instructions below Switch off the drive unit Secure the drive unit against unintended start up e g by mounting warning signs on the switch on point or removing the fuse from the power supply Do not reach into the working area of the coupling when it is still in operation Ensure that the pump is flushed with a safe liquid before any servicing work If the pump has been operated with a liquid hazardous to health servicing must be implemented with appropriate safety measures Coupling A checking of the circumferential backlash and a visual check of the flexible spider must be effected after 2 000 operating hours for the first time after 3 months at the latest If you note an unconsiderable o
27. he flushing process are to be disassembled and cleaned by hand Particular attention is to be paid to the magnetic coupling and the shaft seal Where curing media e g varnish have been pumped in order to ensure that the pump is in good working order for the next time it is used complete disassembly Section 7 4 and cleaning of the individual parts of the pump will be necessary For cleaning use conventional cleaning products or solvents see resistance Following reassembly the pump should once again be flushed with water Comply with regulations when handling substances hazardous to health Pumpenfabrik Ernst Scherzinger GmbH amp Co KG Bregstr 2325 78120 Furtwangen Germany Tel 49 0 77 23 65 06 0 Fax 65 06 40 E Mail info scherzinger de S HERZINGER wm Deseriptionofihe pump PUMP TECHNOLOGY 4 1 4 2 4 2 1 Description of the pump Principle of a gear pump The pumping effect of a gear pump is created by the contra rotation of two gears within a pump housing The gears are attached to two shafts which in turn are supported on bearings in the pump housing and cover One of the two gears is driven by means of a shaft the second gear is driven by the gears meshing The opening up of the tooth spaces creates a negative pressure which sucks the liquid into the pump and transports it between the tooth spaces and the wall of the pump housing In the section where the gears engage with one anot
28. he pump requires maintenance Please contact the manufacturer d Coupling defective Replace damaged coupling components A damaged coupling is always a sign of overload Rectify the cause of the overload Ill The pump is making noises If vibration grinding or scratching noises can be heard stop the drive immediately The malfunction must be rectified immediately Possible causes are a Extreme wear in the pump The pump must not be operated in this condition The pump requires maintenance b Cavitation operation As a result of the combination of inlet pressure suction height and vapour pressure of the liquid vapour bubbles form in the suction area of the pump These implode again on the pressure side and lead to increased wear on the pump This working point can be avoided by changing the operating conditions c Coupling wear Pumpenfabrik Ernst Scherzinger GmbH amp Co KG Bregstr 2325 78120 Furtwangen Germany Tel 49 0 77 23 65 06 0 Fax 65 06 40 E Mail info scherzinger de S HERZINGER me Malfunctions causes and rectification PUMP TECHNOLOGY Check the wear limits of the coupling see Section 7 3 If coupling wear is too high replace the worn parts as overheating can pose an ignition danger d Pump with magnetic coupling rattles The magnetic coupling is uncoupled Stop the drive and start it again If the pump does not engage again check the operating parameters IV The pump is ge
29. he thermal capacity of the liquid and the ambient temperature Approximate values are given in Tables 6 1 to 6 4 Here is an example showing how the maximum permissible liquid temperature can be calculated Pump 35100 ZFMKSC M1 5 Pump speed 1450 1 min Liquid ethanol specific thermal capacity 2 43 kJ Kg K Atmosphere ethylene ether temperature class T4 Ambient temperature 35 C The maximum permissible temperature of the liquid at the pump discharge would be 90 C see Table 6 3 If this liquid temperature is exceeded the pump must be immediately brought to a standstill Maximum permissible surface temperatures for pumps with magnetic couplings for pump sizes 35000 ZFMKSC M 35000 ZFMKK M 35000 ZMKSC M made from stainless steel specific Maximum pressure side liquid temperature thermal for use in temperature class Pumps A capacity of Temperature class of the gas or vapour peed the liquid kJ kg K T1 T2 T3 T4 T5 T6 lt 1 200 C 162 C 97 C 62 C 47 C 2 200 C 165 C 100 C 65 C 50 C lt 600 1 min lt 4 200 C 167 C 102 C 67 C 52 C gt 4 200 C 168 C 103 C 68 C 53 C lt 1 200 C 154 C 89 C 54 C 39 C lt 1200 1 min 2 200 C 159 C 94 C 59 C 44 C 4 200 C 164 C 99 C 64 C 49 C gt 4 200 C 167 C 102 C 67 C 52 C 1 200 C 138 C 73 C 38 C 23 C 1800 1 min 2 200 C 149 C 84 C 49 C
30. her the liquid is squeezed out through the tooth spaces and into the outlet Thus the liquid can also be pumped against a positive pressure Design of a process pump Basic principle The robust design of the pump consisting of a casing and two covers enables rapid simple and economic servicing and maintenance of the unit The covers are attached to the casing by eight screws Each cover has a O ring between it and the casing The shafts with their pressed on gears are supported axially and radially by sleeve bearings The rotation of the drive unit on the pump head is transferred if using a mechanical seal or stuffing box packing through a compensation coupling or where there is the need for absolute security against leakage through a magnetic coupling to the drive shaft and drive gear Scherzinger 35000 series process pumps are available in three different pump sizes pump size 350XX 351XX 353XX with and without heating jacket and with free shaft end as a foot pump The gear pumps are also available as magnetic coupling versions with an adapter connection to a suitable electric motor This version is only available without a heating jacket Pump capacities are given in the pump data Section 1 3 35000 with single mechanical seal 35000 with magnetic coupling 35000 with mechanical seal on base plate Pumpenfabrik Ernst Scherzinger GmbH amp Co KG Bregstr 2325 78120 Furtwangen Germany Tel 49 0 77 23 65 06 0
31. ions causes and rectification I The pump is not sucking properly a Pipework incorrectly designed Pipes that are the wrong size can have a serious negative effect on pump suction The instructions in Section 5 2 Connection pipes are to be observed b Pressure pipe is closed If a shut off valve is integrated on the pressure side ensure that it is open If there is still air in the pressure pipe ensure that it can be vented c Suction pipe is closed If a shut off valve is integrated on the suction side ensure that it is open d Pump is worn out If the pump no longer sucks although operating conditions remain unchanged and the suction and pressure pipes are open the pump probably requires maintenance e Suction pipe leaking Ensure that the suction line is absolutely gas tight so that surrounding atmosphere cannot be sucked in II The pump builds up too little or no pressure a Pipes closed Where there are shut off valves in the pipes on the pressure or suction side ensure that these are open b Liquid viscosity too low The efficiency of the pump is dependent on the viscosity consistency of the liquid If the viscosity arising from the particular liquid or too high a temperature decreases too much this can cause a drop in flow rate c Pump is worn out If none of the points described above apply or if the pump capacity falls without any change in the operating conditions then it is likely that t
32. itable supports so that the four support points are at the same level If you do not align the pump properly it can cause stresses that could damage the pump or motor or at the least affect the functioning It is important that the set direction of rotation of the drive correctly relates to the desired pumping direction If the direction of rotation is changed then so will the direction of pumping The pump itself is designed to operate independently of the direction of rotation This means that the pump is not very likely to suffer damage However considerable damage to the system and danger to the operating personnel could result if the pump is operated with the wrong direction of rotation The wrong direction of rotation could empty the pump The resulting dry running does not constitute proper use and must be avoided in potentially explosive atmospheres at all costs Elastic mechanical shaft couplings Pumps on base plates with motors are supplied with the correctly installed shaft coupling from the factory No adjustment is necessary for the first set up Setting of the coupling should only be carried out as part of or after servicing work The supplied coupling in accordance with EU Directive 94 9 EC is in three parts The pump may be used in potentially explosive atmospheres only in conjunction with the supplied coupling Pumpenfabrik Ernst Scherzinger GmbH amp Co KG Bregstr 2325 78120 Furtwangen Germany Tel 49 0 77 23
33. lation arising from its implementation the manufacturer Pumpenfabrik Ernst Scherzinger GmbH amp Co KG BregstraBe 23 25 D 78120 Furtwangen declares that the explosion protected product described in the operating and safety instructions Type Process gear pump Series 35000 35300 ZFMK 35000 35300 ZMK 35000 35350 GLRD 35000 35350 DGLRD is a device in the sense of Article 1 3 a of Directive 94 9 EC and complies with the essential safety and health requirements as per Appendix II of Directive 94 9 EC and the following harmonised directives DIN EN 13463 1 E DIN EN 13463 5 The specified pump type falls into the explosion protection design classification c An ignition hazard assessment is available The pump carries the identification ce x 26 cx The technical documentation in compliance with Article 8 1 b ii of the directive 94 9 EC in combination with Appendix VIII has been deposited with the following named body Deutsche Montan Technologie GmbH Dinnendahlstra e 9 D 44809 Bochum Furtwangen 29 September 2003 Te c AA Dipl Ing Erich Willimsky Managing Director Pumpenfabrik Ernst Scherzinger GmbH amp Co KG Bregstr 2325 78120 Furtwangen Germany Tel 49 0 77 23 65 06 0 Fax 65 06 40 E Mail info scherzinger de SeH ERZINGER 34 Declaration of Conformity Machinery Directive PUMP TECHNOLOGY Declaration of Conformity Machinery Directive with
34. n in potentially explosive atmospheres the following applies flow controller rising pipe relief valve check valve temperature sensor Noise insulation measures may be required on the pipework If the pump is not to be used in potentially explosive atmospheres it may be helpful to install shut off valves upstream and downstream of the pump This would allow the pump to be removed without having to drain the pipe system Pumpenfabrik Ernst Scherzinger GmbH amp Co KG Bregstr 2325 78120 Furtwangen Germany Tel 49 0 77 23 65 06 0 Fax 65 06 40 E Mail info scherzinger de SGHERZINGER ts StartUp shut Down PUMP TECHNOLOGY 6 1 6 2 E Start Up shut Down Preparation for operation Following complete installation check the pump and peripherals again using the following list of questions Can the pump be rotated by hand e g when turning the motor fan Have you connected the suction and pressure sides correctly Does the drive direction of rotation agree with that of the pump Are the butterfly valves gate valves and valves in their correct positions Has the pipe system been checked for leaks Is it possible to stop the pump by an emergency switch in case of malfunction Is there sufficient and the correct liquid in the tank If the temperature difference between pump and liquid is greater than 50 C the pump must be tempered before starting Starting opera
35. nd safety regulations issued by the operating company are to be complied with Safety instructions for the operating company Hot or cold parts representing a danger are to be designed in such a way as to prevent accidental contact Pumpenfabrik Ernst Scherzinger GmbH amp Co KG Bregstr 2325 78120 Furtwangen Germany Tel 49 0 77 23 65 06 0 Fax 65 06 40 E Mail info scherzinger de S HERZINGER 8 Safety PUMP TECHNOLOGY 2 6 2 7 2 8 Leakages of hazardous substances being handled e g explosive toxic or hot materials must be conducted away so that no danger to persons or the environment arises Legal regulations are to be observed Dangers from electrical energy are to be eliminated for details on this refer e g to the VDE and local power company regulations Safety instructions for servicing maintenance inspection and assembly work The operating company shall ensure that all servicing maintenance and assembly work is carried out by authorised and qualified specialist personnel who are sufficiently informed as a result of thoroughly studying the operating manual e Work on the pump is only to be carried out when the pump is at a standstill e Pumps or pumping systems handling fluids that are detrimental to health must be decontaminated e Upon completion of the work all safety and protective devices must immediately be refitted and made operational The points listed in
36. nnen nene nene snnt enne 9 4 Description of the pump 10 44 Prnciple of a gear PUMP EE 10 4 2 Design of a process Dump enne nennen nnne en tenen nnns si tnte a neris ss sn ns sn tes entes ees sinn isset nnns 10 LN PEDE E M 10 c P P Seied 11 4 2 3 Stutfing box PACKING EE 11 4 2 4 Single mechanical SCA EE 11 4 2 5 Double mechanical sel 12 4 2 6 MagonetGouplmg EE 12 5 Setting Up installation 2 2 Rie eee Re ee Re eA dee 14 5 1 Information about the operating location nnne nennen snnt en nennen 14 5 2 EIrSUSOL Up outer ob DL e Mm ui SEIT Le 14 5 2 1 CHECKS before setup SLAMS EE 14 5 2 2 Elastic mechanical shaft couplings ssssssssssssssssseseee enne enne nnne nennen nnns nennen 14 peste BIOCIICAl QNIVOGS RR 15 5 2 4 eres 15 6 Start Up shutb DOWN 2 22 eae idu ee a late 18 6 1 Preparation for operation entrent nennen aaan aadaki aiad sinn neni tenens 18 6 2 Starting operati N EE 18 6 3 Restarting after dry runming enne nnnm en rennen isis nrtr itr nr etre s erste erret nnns 18 0 4 MOMOD I EE 18 SEES ODIT TEE 22 6 6 Removal from the evstem en tnneennns nnn trit nnne tet rs sn nn nisi trt e entes einn EERE nsn tenens 22 T Maintenance WEM TETTE 23 Al Gemerallintornm atom EE 23 AO PE ESOETEON gn EEN 23 7 3 ECouplingm Mm A ER E Ss E KR RT ER m m c
37. nnnnnnnnnnannnnnnnnannnnnannnnnn 34 Manufacturer s Declaration of Conformity uureuusrsannnnannnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnannnnnnnnnnannnnnnnnnnnnnnannnnnannnnnn 35 Pumpenfabrik Ernst Scherzinger GmbH amp Co KG Bregstr 2325 78120 Furtwangen Germany Tel 49 0 77 23 65 06 0 Fax 65 06 40 E Mail info scherzinger de SCHERZINGER o General PUMP TECHNOLOGY 1 1 1 2 1 3 General This operating manual contains basic information for the pumps specified in Section 1 3 which must be complied with during installation operation servicing and maintenance It is therefore essential that this operating manual is read prior to installation and commissioning by the fitters and the responsible technicians operators and must always be available at the operating location of the machine In addition to the operating manual for the pump the operating manual for the drive must also be available and must have been read and understood Use The process pumps described in this operating manual are S HERZINGER IESU vom suitable for pumping lubricating and non lubricating liquids that SE d 22 do not have a corrosive or aggressive effect on the pump e C 9iIpDGD d 2001R materials used Section 1 3 Any liquid to be pumped is i1 35100 ZMKSC M1 5 hereinafter referred to simply as the liquid gt N Trockenlauf vermeiden Qu If you require further information that is beyond the scope of this op
38. o further than is required to stop the leak of fluid Any tighter and the pump may overheat If the pump can no longer be stopped from leaking by retightening the stuffing box packing must be replaced For more details refer to the servicing manual Mechanical seal When you replace the mechanical seals you must leave the parallel pins 9 in position If they are not pressed in properly they can rub on the shaft and therefore present the danger of ignition Disassembly and reassembly Particular care is to be taken to ensure that all O rings and flat seals are replaced upon reassembly as part of any servicing work that involves dismantling the pump Otherwise complete leakage prevention cannot be guaranteed Absolute cleanliness of the workplace is essential for this task as any dirt could threaten the proper functioning of the pump Grease the cover screws 16 No when assembling the pump otherwise they could become stuck in the threads and make disassembly more difficult next time We recommend that servicing is always carried out in the manufacturers factory If you wish to service or repair the pump yourself please observe the provisions of the relevant servicing manuals Pumpenfabrik Ernst Scherzinger GmbH amp Co KG Bregstr 2325 78120 Furtwangen Germany Tel 49 0 77 23 65 06 0 Fax 65 06 40 E Mail info scherzinger de S HERZINGER me Malfunctions causes and rectification PUMP TECHNOLOGY 8 Malfunct
39. on protection WARNING Non compliance poses a risk to the machines Be aware of the name plate mounted directly on the pump and always maintain it in a fully legible condition Staff qualification and training The operational servicing maintenance and assembly staff must have the necessary qualifications to carry out these tasks The area of responsibility duties and supervision of the staff must be carefully controlled by the operating company In the event that the personnel do not possess the necessary skills and knowledge then they are to be trained and instructed accordingly Furthermore the operating company must ensure that the contents of the operating manual are understood fully by the personnel Dangers of non compliance with safety instructions Disregarding safety instructions can pose a risk to life and limb the environment and the pump itself Disregarding safety instructions may invalidate any claims for compensation In particular for example non compliance may result in danger of the following Failure of important functions of the pump Failure of the specified methods for servicing and maintenance Danger to persons by electrical mechanical and chemical effects Danger to the environment caused by the leaking of hazardous substances Working safely The safety instructions specified in this operating manual existing national regulations on the prevention of accidents and any other internal working operating a
40. r no wear at the spider after this first inspection the further inspections can be effected in case of the same operating parameters respectively after 4 000 operating hours or after 12 months at the latest If you note a considerable wear during the first inspection so that a change of the spider would be recommended please find out the cause according to the table Breakdowns as far as possible The maintenance intervals must be adjusted according to the changed operating parameters B new state feeler gauge X wear Checking the limit of wear Wear of the spider The elastic spider must be replaced when X exceeds the figures in table 7 1 Pumpenfabrik Ernst Scherzinger GmbH amp Co KG Bregstr 2325 78120 Furtwangen Germany Tel 49 0 77 23 65 060 Fax 65 06 40 E Mail info scherzinger de SOHERZINGER a Meintenance PUMP TECHNOLOGY 7 4 7 6 When the replacement limits will be reached depends on the operating conditions and operating parameters ROTEX amp Wear limits friction Size Xmax mm 19 3 24 3 28 3 38 3 Table 7 1 Stuffing box packing If a pump with a stuffing box packing type of seal develops a leak during operation the stuffing box packing can simply be recompressed by tightening the tightening screw Just turn the tightening screw clockwise with an open spanner until the fluid stops leaking out Tighten the tightening screw n
41. r vapour e liqui kJ kg K T1 T2 T3 TA T5 T6 1 200 C 162 C 97 C 62 C 47 C lt 2 200 C 165 C 100 C 65 C 50 C 600 1 min 4 200 C 167 C 102 C 67 C 52 C gt 4 200 C 168 C 103 C 68 C 53 C lt 1 200 C 154 C 89 C 54 C 39 C 1200 1 min 2 200 C 159 C 94 C 59 C 44 C 4 200 C 164 C 99 C 64 C 49 C gt 4 200 C 167 C 102 C 67 C 52 C 1 200 C 138 C 73 C 38 C 23 C lt 1800 1 min lt 2 200 C 149 C 84 C 49 C 34 C 4 200 C 158 C 93 C 58 C 43 C gt 4 200 C 164 C 99 C 64 C 49 C Table 6 4 If you are using a pump with a single or double mechanical seal the discharge side liquid temperature must be at least 30 C less than the permissible surface temperature of the temperature class in which the pump is installed Liquid temperatures above the permissible temperatures for the materials see Section 1 3 does not constitute proper use and must be avoided Remove accumulated dust from the surface of the pump drive and connected pipes regularly to avoid the formation of dust nests which could act as an ignition source The cleaning frequency is determined by the rate of dust accumulation Monitor the noise level of the pump In the event of grinding sounds turn the pump off immediately Inspect the pump for wear Metallic parts rubbing together can cause overheating or sparking If the pump is used in a potentially explosive atmosphere a flow controller must
42. rmetic seal In other words the end of the rotating shaft does not project out of the pump Leakage caused by wear of the shaft seal cannot occur as only a static seal is provided Pumpenfabrik Ernst Scherzinger GmbH amp Co KG Bregstr 2325 78120 Furtwangen Germany Tel 49 0 77 23 65 06 0 Fax 65 06 40 E Mail info scherzinger de S HERZINGER um Deseription of the pump PUMP TECHNOLOGY of the magnetic coupling by means of several alternately magnetised magnets on the inner circumference in the magnetic coupling cover The same number of magnets are similarly The required torque is transmitted through a non magnetic partition wall stationary cup to the hub arranged alternately polarised on the outer circumference The magnetic coupling also serves as an overload protection device in order to prevent damage to the pump under higher pressures As soon as the maximum transferable torque is exceeded the magnetic field is broken and the drive continues to run almost without resistance The system starts into a steady rattle and the pump stops whilst the drive continues to run Pumping ceases There are always eddy currents in the split case induced by the rotating magnetic field The following table shows the losses due to eddy currents for the various coupling types This power loss is all converted to heat in the area of the stationary cup 35000 stainless 35100 stainless 35000 Hastelloy 35100 Hast
43. th single mechanical seal for pump sizes 350x0 GLRD 351x0 GLRD 353x0 GLRD made from stainless steel and Hastelloy C4 specific Maximum pressure side liquid temperature thermal for use in temperature class Pumps e speed Eerst Temperature class of the gas or vapour e kJ IKK T1 T2 T3 T4 T5 T6 1 200 C 154 C 89 C 54 C 39 C e 2 200 C 159 C 94 C 59 C 44 C 600 1 min 4 200 C 164 C 99 C 64 C 49 C gt 4 200 C 167 C 102 C 67 C 52 C 1 200 C 138 C 73 C 38 C 23 C 1200 1 min 2 200 C 149 C 84 C 49 C 34 C 4 200 C 158 C 93 C 58 C 43 C gt 4 200 C 164 C 99 C 64 C 49 C 1 200 C 105 C 40 C 5 C 10 C 1800 1 min 2 200 C 127 C 62 C 27 C 12 C 4 200 C 145 C 80 C 45 C 30 C gt 4 200 C 157 C 92 C 57 C 42 C Table 6 3 Maximum permissible surface for pumps with magnetic couplings for pump sizes 35100 ZFMKSC M 35100 ZFMKK M 35100 ZMKSC M made from Hastelloy C4 Pumpenfabrik Ernst Scherzinger GmbH amp Co KG Bregstr 2325 78120 Furtwangen Germany Tel 49 0 77 23 65 060 Fax 65 06 40 E Mail info scherzinger de S HER ZINGER 21 Start Up shut Down PUMP TECHNOLOGY E OOO specific Maximum pressure side liquid temperature Pum thermal for use in temperature class ps speed pon din Temperature class of the gas o
44. the Provisions of Directive 98 37 EC In accordance with EU Directive 98 37 EC Appendix Il dated 22 June 1998 the manufacturer Pumpenfabrik Ernst Scherzinger GmbH amp Co KG Bregstra e 23 25 D 78120 Furtwangen declares that the pumps Type Process gear pump Series 35000 35350 with drive is supplied with an electric drive unit and therefore complies with the provisions of Directive 98 37 EC Appendix 1 No 1 Applicable directives below 98 37 EC Machinery directive 93 44 EEC Low voltage directive 89 336 EEC Electromagnetic compatibility EMC Directive 94 9 EC Explosion protection ATEX 95 Applicable harmonised standards below EN ISO 12100 T1 EN 294 EN 809 DIN EN 13463 1 EN ISO 12100 T2 EN 563 EN 60 204 T1 E DIN EN 13463 5 Applicable national technical standards and specifications Accident prevention regulations t Furtwangen 29 September 2003 E el r Dipl Ing Erich Willimsky Managing Director Pumpenfabrik Ernst Scherzinger GmbH amp Co KG Bregstr 2325 78120 Furtwangen Germany Tel 49 0 77 23 65 06 0 Fax 65 06 40 E Mail info scherzinger de SCHERZINGER_ Manufacturers Declaration of Conformity PUMP TECHNOLOGY Manufacturer s Declaration of Conformity with the Provisions of Directive 98 37 EC In accordance with EU Directive 98 37 EC Appendix Il B dated 22 June 1998 the manufacturer Pumpenfabrik Ernst Scherzinger GmbH amp Co KG Bregstra
45. the section on Starting operation must be observed before restarting Unauthorised conversion and production of replacement parts Conversion or modification of the pumps shall only be permitted following consultation with the manufacturer Original replacement parts and accessories approved by the manufacturer have a safety role The manufacturer could refuse liability for any consequences arising from the use of other parts Improper modes of operation The operational safety of the machine supplied is only ensured if it is used properly in accordance with Section 1 General of the operating manual The limiting values specified on the data sheet and in Section 1 3 must not be exceeded under any circumstances Pumpenfabrik Ernst Scherzinger GmbH amp Co KG Bregstr 2325 78120 Furtwangen Germany Tel 49 0 77 23 65 06 0 Fax 65 06 40 E Mail info scherzinger de S HERZINGER a Transporttion and interim storage PUMP TECHNOLOGY 3 1 32 3 3 3 4 Transportation and interim storage Shipment of the pumps and protection measures The pumps are dispatched from the factory in such a way that they are protected against shock and impact In addition inlets and outlets are closed using protective plugs This is necessary to prevent any remaining fluid located in the pump as the residue from a test run from leaking out Any risk of foreign bodies getting into the unit is eliminated Transport We gu
46. tion e Clean the pump and pipe system if necessary e In order not to contaminate the liquid it is recommended that a flushing process of at least 5 minutes is implemented with the liquid and at the appropriate pump speed to remove all test liquid residues from the pump e Dry running time should not exceed 30 seconds The ignition temperature of the pumped liquid must be at least 50K above the maximum permissible surface temperature If the pump is used in potentially explosive atmospheres it must not run dry The pump and all pipes must be filled with liquid before starting Open all slides and butterfly valves in the pipe system The pump must not pump from a closed suction pipe or against a closed system Pre heat pumps with the heating jacket before start up The pre heating time depends on the material properties of the pumped liquid The pre heating must always ensure that all the parts of the pump to be in contact with the liquid have reached the operating temperature We recommend a pre heating time of 2 to 3 hours Restarting after dry running After a brief period of dry running it is assumed that the pump is still undamaged you must ensure that the pump is allowed to cool to a temperature below its permissible surface temperature The pump and pipelines must be completely deaerated Re starting after a longer period of dry running does not constitute proper use The pump must be removed from the system checked for
47. tting hot a It is possible that this is a normal operating mode Please check first whether this is normal heating caused by the liquid being conveyed After a short time of operation the pump surface assumes the temperature of the liquid b Grinding noises If scratching noises can be heard this indicates wear in the pump The pump must not be operated in this condition Stop the drive immediately A repair is urgently required c Pump is worn out If the flow rate drops over time but the pump is still building pressure it is likely that wear is present Please contact the manufacturer regarding repairs V Fluid is escaping from the shaft end a Pump with stuffing box packing The shaft seal has become slightly worn during operation Adjust it in accordance with Section 7 4 b Pump with single mechanical seals A slight leakage of one drop per day is permissible If the pump has a higher leakage rate the mechanical seal must be replaced Pumpenfabrik Ernst Scherzinger GmbH amp Co KG Bregstr 2325 78120 Furtwangen Germany Tel 49 0 77 23 65 06 0 Fax 65 06 40 E Mail info scherzinger de SCHERZNGER_ OO am Spare parts lists PUMP TECHNOLOGY 9 Spare parts lists 9 1 Process pumps with magnetic coupling 9 1 1 Spare parts list 35000 35100 35000 35100 ZFMKSC M055 ZMKSC M1 1 ZFMKSC M055 HC4 ZMKSC M1 1 HC4 35000 35100 35000 35100 ZFMKSC M075 ZMKSC M1 5 ZFMKSC M075 HC4 ZMKSC M1 5 HC4 Table 9
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