Operating Instructions Rotary Gear Pumps Models
Contents
1. 65 06 0 Bregstr 23 25 e Fax 65 06 40 78120 Furtwangen Germany E Mail info scherzinger de Seite 10 10 S HER ZINGER Rotary Gear Pumps 51 551 PUMP TECHNOLOGY 9 3 2 WARNING WARNING WARNING 0 3 3 WARNING Seite 11 11 Pump With Motor When choosing a place for installation be sure the motor pump unit is mounted on an even surface If necessary use spacers near the mounting bolts 1 to ensure the unit is level If you do not level the pump mechanical stress may damage the motor or the pump or at least cause malfunctions Tighten the mounting screws carefully 2 after having leveled the pump Make sure the unit is proper ventilated to avoid overheating of the motor Avoid mounting the pump with the pump head down In this case the lip seal is bad lubricated and may fail figure 5 1 The four mounting screws 2 are not in the scope of supply Pumps For Foot Mounting a Pump with coupling on base plate While assembling pump and motor make sure pump shaft and motor shaft are aligned well There must be no radial or axial forces on both shafts This can be avoided by using a flexible shaft coupling Couplings of this type are available at Scherzinger Aligning of pump and motor has to be done before connecting the piping figure 5 2 The mounting bases of pump and motor must be parallel For adjusting the height of the shaft see dimension sheets of pump and motor Bolt down t2. Operation The safe operation of the pump model is only possible if the pump is operated in a correct manner according to section 1 General of this operating manual The pump data in the data sheet must also be observed Seite 5 5 Pumpenfabrik Ernst Scherzinger GmbH amp Co KG Bregstr 23 25 78120 Furtwangen Germany Tel 49 0 77 23 65 06 0 e Fax 65 06 40 e E Mail info scherzinger de S HER ZINGER Rotary Gear Pumps 51 551 PUMP TECHNOLOGY 3 Transportation And Storage 3 1 Shipping The pumps are packaged to prevent corrosion painted if the pumps are not painted they are oiled and damage during shipment Additionally the inlet and outlet ports are plugged to prevent leakage of retained test liquid protect the threads and to prevent particles from reaching the internals of the pump 3 2 Transportation To avoid shipping damage protect the transportation box against impact We guarantee that the pump at time of delivery was working well The pump was packaged in a suitable transportation box After receipt inspect pump immediately for shipping damage If you discover damage immediately contact the forwarder agent and or supplier 3 3 Storage If the pump is stored and will be used later heed to following points Do not store the pump in wet or humid rooms Do not put mechanical load on the shaft end Let inlet and outlet ports plugged Storage temperature to section 1 3 If pumps should be stored th
3. diameter is the nominal widthof the pump connections On the suction side of the pump we recommend piping one size larger than the nominal width of the pressure side As directional quantity we recommend following maximum flow velocities in the piping Up to 200 mm s Up to 600 mm s Up to 2000 mm7 s Suction Piping W 1 0 OST Discharge Piping 3 0 2 0 1 0 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 After installing the piping be sure it is free of sediments and chips Otherwise the pump may be damaged If the suction head will be greater than 4 meters we recommend installing a check valve in the suction piping Please contact the manufacturer for suction strainers with an integrated check valve in various sizes Gear pumps must not operate against closed valves or a system closed to its discharge side The pump can create a hazardous pressure rise which can system environmental damage We recommend a pump with an integrated relief valve or a relief val
4. 11 54 78113 Furtwangen Telephone 49 0 77 23 65 06 0 Telefax 49 0 77 23 65 06 40 Internet http www scherzinger de E Mail info scherzinger de Seite 18 18 Pumpenfabrik Ernst Scherzinger GmbH amp Co KG e Bregstr 23 25 78120 Furtwangen Germany Tel 49 0 77 23 65 06 0 Fax 65 06 40 E Mail info scherzinger de
5. 20 to 80 C 8 to 176 F Seals Buna N 10 to 160 C 8 to 320 F Seals Viton 20to 100 C 8to212 F Seals PTFE 20 to 60 C 8 to 140 F Seals EPDM Viscosity Range 2 to 3000 mm s Speed Range 100 to 1800 RPM Seite 3 3 Pumpenfabrik Ernst Scherzinger GmbH amp Co KG e Bregstr 23 25 78120 Furtwangen Germany Tel 49 0 77 23 65 06 0 e Fax 65 06 40 E Mail info scherzinger de S HER ZINGER Rotary Gear Pumps 51 551 PUMP TECHNOLOGY Noise lt 70 dB A Ground Gears speed 1400 RPM Pressure Rise 20 Bar Operating Temperature 20 C Liquid 200 mm s Lubricant Dimensions see data sheets Materials in Contact With Liquid Casing Cast Iron GG 25 Cover Cast Iron GG 25 Shafts Case Hardened Steel Gears Case Hardened Steel Seals Buna N standard PTFE if requested Viton if requested EPDM if requested Liquids See Quotation Motors C Face or bare shaft pumps are delivered without electric motor For motor pumps see specification of drive manufacturer or distributor If you intend to operate the pump outside of the above given parameters please consult the manufacturer of the WARNING pump Modifications may be necessary to ensure successful operation Otherwise the pump or your system may be damaged 1 4 Representatives Please contact Scherzinger Pump Technology Inc for the representative in your area 2 Safety Equipment that is incorrectly installed operated in a dangerous manner or poorly maint
6. S HERZINGER Rotary Gear Pumps 51 551 PUMP TECHNOLOGY Operating Instructions Rotary Gear Pumps Models 51 76 101 151 251 351 451 551 date of issue 04 07 00 release 2 written by King checked by y li Ze Seite 1 1 Pumpenfabrik Ernst Scherzinger H amp Co KG Bregstr 23 25 78120 Furtwan Lord seal any Tel me 65 06 0 e Fax 65 06 40 E Mail info sc Deeg S HER ZINGER Rotary Gear Pumps 51 551 PUMP TECHNOLOGY 0 Contents ZE 6 9 1 01 E 2 gm E 3 1 1 B EE S EAE E E E E EE S NE A E EE IE E EEN E T A E E E EEEN E 3 1 2 FUMO Model DESIGNATION BEE 3 E SET le A RE 3 1 4 Representatives ccccccccecccseeceeccececeeeceueceueeseeseueeeaeeseeseeeeeaeesaeesaueeeueseuessaeeseesaueesaeessueesaeessueeeueeseeeceessueesaeesseeseuseneeess 4 Ee 4 2 1 Symbols Used In These Operating Instructions ccc ccccecceeceeeeeeceeeeeeaeeeeeeaeeeeeseeeeeesaeeeeesaeeeeseaeseeeeseaeeeesaeeeesaaeeeesaeeeeeas 4 2 2 Personnel Qualification wise co ccctcssecchesssecssessecceeneiheesauennsacidesinehdedauensdadueres denetennsedsbeeh ede suendesG neceUeendceteved desecedadeeieiebexcitdeatenbe 5 2 3 Possible Dangers If Safety Warnings Are Not Obhsenved nne 5 2 4 Local Safety Regulations anne decease cnxncctsdxnesdaesinad ees danas isanne need Sundndsiecsaaince secu noes can eeabacesadteseasedenanGednennged seiadeddiedeaisnct Eain aai Eaa 5 2 5 Safety Guidelines For The Operator icsessssotesdicce Seeerei etesieedi census dadlsbende
7. aft Put motor 3 on fan shroud shaft side up If needed put flexible compensating element to the coupling part Attach pump with c face flange 4 to the motor 3 It may be helpful to turn the pump slightly Fix pump with Screws 5 not in scope of delivery to the motor or RR oe e 1 L F E WSS EL IIo e EE EE EE SES SS ZL ae E N habe eo m z d d Ia H E figure 5 6 Please use the following table to determine the dimensions of a and b in mm All measures are valid for ISO motors IMB 34 tolerances due to ISO 7168 upon request Seite 13 13 Pumpenfabrik Ernst Scherzinger GmbH amp Co KG Bregstr 23 25 78120 Furtwangen Germany Tel 49 0 77 23 65 06 0 Fax 65 06 40 E Mail info scherzinger de S HER ZINGER Rotary Gear Pumps 51 551 PUMP TECHNOLOGY 6 5 3 6 5 3 7 WARNING WARNING WARNING Electric Connection Motor connections should be done in accordance with local laws and legislation Also pay attention to the operating instructions of the motor To receive the maximum motor torque always use a delta connection Piping It is very important to install correct fittings to the pump All fittings should screw together easily use force only for final seat Avoid pipe connections that place any external strains or loads on the pump The piping must have a suitable inner diameter The minimum
8. ained is a potential safety hazard If all reasonable precautions are not taken the result may be personal injury or damage to equipment 2 1 Symbols Used In These Operating Instructions These operating instructions contain safety regulations If these regulations are ignored the result may cause injury or death Warnings are noted with the following symbols danger symbol high voltage symbol symbol referred to DIN 4844 W9 symbol referred to DIN 4844 W8 Please pay close attention to items marked with the following symbol Pump or system damage is possible if these warnings are ignored WARNING Information plates attached directly to the pump Sign with direction of rotation Declaration of fluid connections Date of manufacture Name plate This information must be observed and preserved Seite 4 4 Pumpenfabrik Ernst Scherzinger GmbH amp Co KG Bregstr 23 25 78120 Furtwangen Germany Tel 49 0 77 23 65 06 0 Fax 65 06 40 E Mail info scherzinger de S HERZINGER Rotary Gear Pumps 51 551 PUMP TECHNOLOGY 2 2 Personnel Qualification Individuals responsible for operation maintenance and assembly of this equipment require proper training It is essential the operator is aware of proper operational methods This operating manual must be read and understood before installing and operating the pump 2 3 Possible Dangers If Safety Warnings Are Not Observed Failure to observe safety warnings may caus
9. als are filled with grease figure 4 11 A Packing Box figure 4 12 should be selected when the pump has to handle inlet pressure up to 25 bar or the liquids to be pumped are highly viscous more than 1000mm7 s If using high viscous liquids reduced pump speeds are recommended Advantages of Packing It is easy to maintain If it wears out and starts leaking it easily can be tightened figure 4 12 Seite 9 9 Pumpenfabrik Ernst Scherzinger GmbH amp Co KG Bregstr 23 25 78120 Furtwangen Germany Tel 49 0 77 23 65 06 0 e Fax 65 06 40 e E Mail info scherzinger de Rotary Gear Pumps 51 551 at KY pa S HER ZINGER PUMP TECHNOLOGY Absolute leak free operation only can be guaranteed if no rotating parts e g shafts have to be sealed The Magnetic Coupled Pump figure 4 13 is hermetically sealed Pumps with a magnetic coupling transmit the torque from the driving motor to the pump by magnetic forces without contact Magnetically coupled Rotary Gear Pumps can handle a system pressure up to 20 bar inlet pressure and a differential pressure of 0 8 to Leen fS gt L 10 bar Operation of the magnetic coupling is only allowed up to the operating temperature of the used magnets 150 C Gas d ZG S KK Di In some applications the pumps must be driven e g with a belt drive This creates an additional radial force to the shaft bearings For Belt Drive app
10. an 6 months metallic parts must be specially protected against corrosion 3 4 Preparation For Storage After Use WARNING For shut down and dismount see sections 6 and section 7 Depending on the liquid pumped there are different methods for preparing the pump for storage If liquids without poisonous or aggressive additives were pumped flush the pump for one minute with at operating speed with new lubricating oil If toxic or aggressive liquids were pumped be sure to follow all safety precautions First flush the pump with a neutralizing liquid at operating speed Parts such as the relief valve section 6 3 magnetic coupling section 4 2 4 and packing box section 4 2 4 which cannot be cleaned completely by flushing the pump need to be disassembled and cleaned by hand If liquids that solidify have been pumped e g paint completely disassemble the pump section 7 3 Clean all parts by hand to guarantee a successful start up Clean the pump with normal detergent see resistance of pump materials After assembly the pump should be flushed with a preserving oil at operating speed When handling noxious liquids adhere to all safety regulations 4 The Pump 4 1 Principle Of A Gear Pump Seite 6 6 Gear pumps are rotary displacement pumps in which two gears engage with each other The transfer of fluid is caused by counter rotation of two gears in a gear chamber The gears are fixed on two shafts which are running in be
11. arings in the casing and the cover The shaft drives one gear The other is driven by the first gear The opening teeth create a suction which draws the liquid into the pump figure 4 1 The liquid is transported between the teeth and the gear chamber to the pressure side figure 4 2 figure 4 3 When the gear teeth mesh the liquid is squeezed out and pressed into the discharge port figure 4 4 In this way liquid can be pumped against pressure Pumpenfabrik Ernst Scherzinger GmbH amp Co KG Bregstr 23 25 78120 Furtwangen Germany Tel 49 0 77 23 65 06 0 Fax 65 06 40 E Mail info scherzinger de S HER ZINGER Rotary Gear Pumps 51 551 PUMP TECHNOLOGY figure 4 1 figure 4 2 figure 4 3 figure 4 4 4 2 Design of the Lubrication Pumps 4 2 1 General Design The robust body consists of two parts Casing 1 and cover 2 The pump design lends itself to easy fast and economic maintenance The cover is screwed with either four or six screws to the casing The two parts are sealed an O ring 3 The gears and the shafts are pressed together and run in sleeve bearings the casing and the cover itself are the bearings The torque is transmitted from the drive shaft with drive gear 4 to the idler shaft with idler gear 5 The standard shaft is a lip seal ring 6 Scherzinger lubrication pumps are available in eight different pump sizes size 50 to size 550 flow rates see Pump Data section 1 3 and four different mounting variat
12. ase of malfunction WR Is enough liquid in the reservoir E If temperature of pumps and liquid differ more than 50 C the pump has to be adapted in temperature WR Are all rotating parts protected against touching 6 2 Start Up m Flush the system and the pump head with the liquid to be pumped WR Adjust relief valve to wanted pressure according to section 6 3 WARNING m Dry running time should not extend 20 seconds 6 3 Relief Valve With the integrated relief valve it is possible to determine the relative pressure rise to exact value see section 4 2 3 All relief valves are tested to ensure they are in good working condition Relief valves are not set at a specific value unless requested by the customer The relief valve should be set while the pump is operating Measure the pressure on the outlet side of the pump Pay attention to do the adjustment with the correct operating conditions Flow Rate Temperature System Pressure Speed of Rotation Correct Valve Spring Two different valve types are available figure 6 1 and figure 6 2 1 e O T 8 9 ang Ht Ey JH ee figure 6 1 relief valves of pump types 101 151 and 251 Adjusting Valves of the Types 101 151 and 251 1 Unscrew plug screw 1 and remove seal 2 2 Adjust the relief valve by turning the adjusting screw 2 with an Allan key e To the left counter clockwise gt decreasing the crack pressure e To the right clockwise gt increas
13. e danger to the personnel environment and the pump Liability claims are also possible Examples of such dangers are Malfunction of the pump Electrical shock Mechanical failure Danger to the environment by leakage E E S i 2 4 Local Safety Regulations The installation and operation of the pump must comply with national and local health legislation and safety regulations 2 5 Safety Guidelines For The Operator E Protect hot or cold machine parts against touching M Leaking dangerous liquids e g explosive poisonous hot must be drained to ensure they do not cause danger to personnel and the environment Laws must be obeyed E Electrical dangers must be avoided 2 6 Safety Guidelines For Maintenance Assembly and Disassembly Maintenance assembly and disassembly must be performed by skilled technicians who have read these operating instructions Perform all work while the pump is not in operation If you are pumping noxious liquids the pump must be decontaminated prior to performing maintenance After completion of maintenance all safety devices must be reinstalled Prior to start up all guidelines must be followed 2 7 Technical Changes And Manufacturing Of Spare Parts It is necessary to consult the manufacturer prior to make modifications and technical changes to the pump We recommend the use of spare parts produced by the manufacturer The use of other parts will void your warranty 2 8 Inadmissible
14. each pump is available with different directions of flow If you look at the shaft end Clockwise Rotation Inlet Port to the Left discharge port to the right WR Counter Clockwise Rotation Inlet Port to the Right discharge port to the left WR lf direction of rotation changes and inlet port to the left discharge port to the right WR f direction of rotation changes and inlet port to the right discharge port to the left 4 2 3 Internal Relief Valve The optional available internal relief valve protects your system against inadmissible high pressures Depending on the needed cracking pressure it can be set with different springs to pressures between 0 to 30 Bar figure 4 9 lt ER BREE ae See While cracking the valve relieves internally from pressure to suction side to protect the system and pump from damage Refer to section 6 3 for Relief Valve adjustment figure 4 9 4 2 4 Shaft Seals And Bearings The drive shaft can be sealed in different ways In standard design the shaft is sealed by a lip seal ring figure 4 10 This kind of sealing mostly is used for pumps with a low inlet pressure 0 4 to 0 2 bar and low viscous liquids up to 700mm7 s If suction height reaches more than 4m up to 7m 0 7 bar often two Lip Seals are used If the liquids to be pumped have poor lubrication qualities or is a highly viscous liquid two lip seal rings are recommended In this case the space between the two lip se
15. he motor usually the more weighty component with all four screws 1 Fix the coupling parts with the stud screws to the shafts Align the pump roughly Screw in the fixing screws 2 for the pump Pump must be easily to move Turn drive shaft slowly through fan shroud 3 or by turning the coupling on motor shaft 4 pump aligns now Tighten screws 2 Make sure the pump does not move while doing this oo oY The axial clearance between the shaft ends must be determined by the supplier of the coupling To guarantee both units are aligned properly some experience is required Is the alignment is done badly the force on the shaft ends and the wear will be increased The pump may fail Pumpenfabrik Ernst Scherzinger GmbH amp Co KG Bregstr 23 25 78120 Furtwangen Germany Tel 49 0 77 23 65 06 0 Fax 65 06 40 E Mail info scherzinger de S HER ZINGER Rotary Gear Pumps 51 551 PUMP TECHNOLOGY figure 5 2 After assembly of the coupling it is requested to protect the coupling e g by a coupling guard see figure 5 2 5 against touching b Mounting a pump driven by a belt drive Driving pumps with a V Belt Drive Flat Belt Drive or multiple belt drive is only possible with pumps with an additional Ball Bearing for the shaft end see section 4 2 4 figure 4 14 and additional explanation When calculating and choosing the belt drive check the max shaft end load of the used pump model The p
16. herzinger de S HER ZINGER Rotary Gear Pumps 51 551 PUMP TECHNOLOGY T Maintenance 7 1 General Information Be sure that the pump head is cleaned with a non toxic liquid In the event the pump head was operating with dangerous or noxious liquids use necessary safety precautions 7 2 Inspection All internal bushings are sleeve bearings lubricated by the pumped liquid Only one pump version see section 4 2 4 figure 4 14 is equipped with an additional ball bearing at the shaft end Also for this type no maintenance is necessary 7 3 Repair Work WARNING If the pump head has been disassembled it is necessary to replace all O rings to ensure a proper seal An exact description of the maintenance steps can due to the various pump types not be supplied Please consult the matching spare part list 7 4 Tools For maintenance you will need Allan key 2 to 10mm Wrench 8 to 40 mm Dynamometric key 3 to 40 Nm pliers for retaining rings for shafts and bores DIN471 472 pincers to remove the feather keys E x E E E WR tool to press in the lip seal rings Seite 17 17 Pumpenfabrik Ernst Scherzinger GmbH amp Co KG Bregstr 23 25 78120 Furtwangen Germany Tel 49 0 77 23 65 06 0 e Fax 65 06 40 E Mail info scherzinger de S HER ZINGER Rotary Gear Pumps 51 551 PUMP TECHNOLOGY S HER ZINGER PUMP TECHNOLOGY Ernst Scherzinger GmbH amp Co KG Bregstrasse 23 78120 Furtwangen PO Box
17. ing the crack pressure e Scherzinger recommends to set the crack pressure about 20 higher than the needed pressure rise 3 Replace plug screw 1 and seal 2 and tighten both Seite 15 15 Pumpenfabrik Ernst Scherzinger GmbH amp Co KG Bregstr 23 25 78120 Furtwangen Germany Tel 49 0 77 23 65 06 0 Fax 65 06 40 E Mail info scherzinger de S HER ZINGER Rotary Gear Pumps 51 551 PUMP TECHNOLOGY 1 2 d D OO O p EE EEN HE G S 8 8 4 EE aN WN dk G N SOT figure 6 2 relief valves of pump types 51 76 351 451 and 551 Adjusting Valves of the Types 51 76 351 451 and 551 1 Unscrew and remove cap screw 1 and open counter nut 5 2 Adjust the relief valve by turning the adjusting screw 2 with a screw driver e To the left counter clockwise gt decreasing the crack pressure e To the right clockwise gt increasing the crack pressure e Scherzinger recommends to set the crack pressure about 20 higher than the needed pressure rise 3 Tighten counter nut 5 to fix the adjusting screw 4 Replace and tighten cap screw 1 5 Make sure all seals 4 are rearranged correctly AN While cap screw plug screw 1 is opened a small amount of leakage is possible The relief valve is designed for a short term overload protection Pumping liquid through a relief valve will generate WARNING heat in the liquid For application at ambient operating temperatures if the relief valve is opened more than 3 mi
18. ions figure 4 5 to figure 4 8 The shown cut away drawings are valid for the pump sizes 151 and 251 and may vary in details for the other sizes 2 3 1 4 lt VA 5 6 Ge ST SR figure 4 5 foot mounted pump with lip seal ring e g to screw to a base plate Seite 7 7 Pumpenfabrik Ernst Scherzinger GmbH amp Co KG Bregstr 23 25 78120 Furtwangen Germany Tel 49 0 77 23 65 06 0 e Fax 65 06 40 e E Mail info scherzinger de S HER ZINGER Rotary Gear Pumps 51 551 PUMP TECHNOLOGY GE SSE vi EE ETA E SNES KG vue 5 figure 4 6 C face pump with lip seal ring to mount e g directly to a gear box 2 3 1 4 GE Ae VEZ i Wizz Mis Ye tad tide xH EGE AEZ en st EE CR ohh figure 4 7 C face pump with lip seal ring to mount directly to a DIN motor 2 3 2 3 Gg A D YZZ FN Lal a f zet Jha ZZA N Lis SC Wo SIA E ei ll a fet S SEEN Sat M HW NE 5 6 T S figure 4 8 Pump with lip seal ring mounted to an electric motor Seite 8 8 Pumpenfabrik Ernst Scherzinger GmbH amp Co KG Bregstr 23 25 78120 Furtwangen Germany Tel 49 0 77 23 65 06 0 e Fax 65 06 40 e E Mail info scherzinger de S HER ZINGER Rotary Gear Pumps 51 551 PUMP TECHNOLOGY 4 2 2 Directions of Flow Additional to the basic models of the pumps described in section 4 2 1
19. lications the pumps can be ordered with an additional Ball Bearing figure 4 14 Allowed radial forces at a speed of 1450 RPM and a lifetime of 10 000h force points to the middle of the feather key SES GE 51 250 N 251 400N 76 250 N 351 450N 4 14 ER 101 400N 451 450N 1541 4OON 554 500N 4 3 Dimensions All relevant pump dimensions can be seen in the dimension sheets of the pumps 5 Installation 5 1 Place Of Installation When choosing the place of installation make sure there is enough space around the pump for easy maintaining The place of installation must be dry Do not mount in aggressive environment 5 2 Tools For mounting our gear pumps you need WR A wrench for the piping WR A wrench or ring wrench for the mounting screws WR Allan key for the coupling 5 3 Initial Installation 5 3 1 Check Before Installation First check the pump for transportation damages se section 3 2 Verify the following information some items may not pertain to your pump model Liquid to be pumped Pump data flow rate pressure rise motor performance Pump model and type Direction of rotation and position of inlet and outlet ports Type of Shaft Seal Additional Ball Bearing for shaft WARNING If there are differences between the pump required and the pump received please contact the manufacturer prior to starting the pump Pumpenfabrik Ernst Scherzinger GmbH amp Co KG Tel 49 0 77 23
20. mp Model Designation This manual is valid for the lubrication pumps 51 76 102 151 251 351 451 and 551 beginning with the year 1998 manufactured by Ernst Scherzinger GmbH amp Co KG 78120 Furtwangen Germany The date of manufacture is stamped on the casing The first letter marks the year of manufacturing the following number the month of manufacturing To determine the year we started in 1997 with the letter F was used G 1998 H 1999 1 2000 etc The bottom line of this manual shows the issue and date of issue of this operating instruction All the described motor pumps in these operating instructions conform with valid EG laws and are allowed to carry the CE symbol 1 3 Pump Data Max Operating Pressure outlet side 30 Bar 435 psi Max System Pressure inlet side 0 2 Bar 3 psi with Lip Seal Ring 20 Bar 290 psi with Magnetic Drive 25 Bar 363 psi with Packing Max Suction 0 4 Bar 6 psi with Lip Seal Ring 0 8 Bar 11 5 psi with Magnetic Drive Max Pressure Rise 30 Bar 435 psi with Lip Seal Ring 10 Bar 145 psi with Magnetic Drive 30 Bar 425 psi with Packing Flow Rate at 1400 RPM 50mm7 s Size 51 2 8 La 0 73 GPM and 2 Bar Pressure Rise Size 76 3 7 i 0 96 GPM Size 101 5 2 La 1 35 GPM Size 151 7 6 min 1 97 GPM Size 251 16 min 4 16 GPM Size 351 26 Imin 6 75 GPM Size 451 43 Jun 10 9 GPM Size 551 69 Jun 17 9 GPM Storage Temperature 10 to 50 C 50 to 122 F Operating Temperature
21. mps ZK Version 12 5 3 6 POC IG Reie Tee EE 14 Sid Ela ln Le EE 14 ST T Lin DoT a P 14 6 1 A OCT OLOIN EE 14 6 2 siculo EE 15 SE See ut EE 15 S igdlefk EE 16 Aldin EE 16 EI EE 16 EIERE n o O O e KA A ET A Be A ET 2 el A ke P 17 Toe oeeral rOnmnictiG ide 2 8 My 9 S A IID S EL KL S 17 7 2 OI EEN 17 e EE 17 cl EE 17 Seite 2 2 Pumpenfabrik Ernst Scherzinger GmbH amp Co KG Bregstr 23 25 78120 Furtwangen Germany Tel 49 0 77 23 65 06 0 e Fax 65 06 40 E Mail info scherzinger de Rotary Gear Pumps 51 551 1 S HER ZINGER PUMP TECHNOLOGY General This manual includes all necessary information required during installation operation and maintenance It Should be read prior to commencing installation and operation It is absolutely necessary to store the manual within reach of the pump In additional to this manual the operating instructions of the motor should be read and always be kept within reach of the pump 1 1 Usage Pumps described in these operating instructions are capable of pumping lubricating liquids All liquids must be non corrosive for the used materials see section 1 3 Should you require any additional information regarding the pump contact Scherzinger Pumpen GmbH amp Co KG Scherzinger Pump Technology Inc or their local authorized distributor Please state the pump model and the date of manufacture in your correspondence 1 2 Pu
22. nelnice MeerieSedeohuageeebtecbdandede 5 2 6 Safety Guidelines For Maintenance Assembly and Dtsassembhy 5 2 Technical Changes And Manufacturing Of Spare Hate 5 28 Inadmissible OperatiOn EE 5 3 PransponatonrAnd Storage E 6 e En e e e EE 6 a WIS OO O aE ER EAEE A EEEE AAEE E EE E E A E E ants asweamecaceeetecseacec eo 6 CS Gelee GE 6 3 4 Preparation For Storage After Use cc cccccccceccceceeeee ee eee eee e sees eee eens neces sees ence en eee saa See esa a eees saa A Sees eae eetsGaeeessaaeeesaaeeeeaaaeeeeas 6 MN IM EE 6 Ad Principle OTA Gear in e EE 6 4 2 Design of the Lubrication PUMPS ee eeeee ee eeeeeeeeeeeaeeeeeseeeeeeseeeeesaeeeeeeaeeeeeaaeeeeesaeeeeesaeeeessaeeeesaneeessaneeesaaes T 4 2 1 Cerera eege 7 4 2 2 Directions of ml meee Oe eee eee er eee ee eae ae ee ee nee ee eee ee eee ee re eee or eee 9 4 2 3 Hale dare lt VAVE en eer ee ee ee ee eee eee eee 9 4 2 4 Shaft Seals And Bearings EE 9 da DIMEN TON E 10 DB SCAN AMON E 10 ol gl 216 Ee 10 EE 10 OO AIA MSU OME EE 10 5 3 1 Check Before Installation x cccxtcecseacestnscorccesscccgnandqucetesaeccesessqanscesieccencndqar aces eocceimadeerned ese maces heed Secdedep dceceues soasnecnsens hee 10 5 3 2 Pump With Motor See nrin rrr atre rtnrEr Arrt EEA EEEnEE EEES EEEE Aene Errr nren en nne nenn 11 5 33 Pumps For Foor Mounn siesena E EERE cata tele ll ecic A AEAEE EEA 11 5 3 4 Mounting C Face Pumps F Vereaion 12 5 500 Motor Assembly Of C Face Pu
23. nutes damage to the pump head could occur The higher the operating temperature the shorter the possible relief valve opening time d WARNING do not remove adjusting screw while pump is in operation or the system is under pressure Liquid can spurt out and cause personal injuries 6 4 Monitoring We recommend installing a manometer on the outlet side of the pump to check the operating pressure If the WARNING operating temperature is greater than 80 C we recommend installing a temperature gauge Temperatures greater than 80 C Buna N or 160 C Viton may destroy the seals or damage the magnets with magnetic coupling 6 5 Shut Down E Reduce the speed of rotation if possible to half operating speed m Drain the pump head by reducing the outlet pressure to atmospheric pressure and remove the suction piping out of the liquid tank so that the pump sucks air not if the system is under pressure WR Be sure the pump does not run dry for more than 30 seconds WR If you are pumping noxious liquids flush the pump with a neutralizing liquid m Flush the pump with lubrication oil e g Shell GF68 6 6 Dismounting WM Switch off drive motor and remove electric connections Make sure all steps in section 6 5 have been completed m Remove the pump Seite 16 16 Pumpenfabrik Ernst Scherzinger GmbH amp Co KG Bregstr 23 25 78120 Furtwangen Germany Tel 49 0 77 23 65 06 0 Fax 65 06 40 E Mail info sc
24. ulley must be centered on the feather key figure 5 3 and fixed safely The more the pulley is shifted to the shaft end the higher the bearing load and the less is the possible radial bearing load figure 5 3 After assembly protecting the belt drive by a guard against touching is absolutely necessary 5 3 4 Mounting C Face Pumps F Version The way of mounting of c face pumps differs with the application A description how this pump has to be installed cannot be made If you need help in your special case of installation do not hesitate to contact Scherzinger Pumps 5 3 5 Motor Assembly Of C Face Pumps ZK Version The delivered shaft coupling can be either consisting of two parts see figure 5 4 that will be fixed to the shaft ends or three parts see figure 5 5 with a flexible compensating element Seite 12 12 Pumpenfabrik Ernst Scherzinger GmbH amp Co KG Bregstr 23 25 78120 Furtwangen Germany Tel 49 0 77 23 65 06 0 Fax 65 06 40 E Mail info scherzinger de S HER ZINGER Rotary Gear Pumps 51 551 PUMP TECHNOLOGY re i LSR i AYZ ken hl fi 4 gure figure 5 5 The coupling including the set screws are included The coupling part of the pump is mounted in the correct position figure 5 6 length a To mount the motor to the pump do as follows Attach motor coupling 1 in distance b to the drive shaft Fix coupling part with set screw 2 to sh
25. ve installed directly in the discharge pipe of the pump In situations where de aerating is a critical process the installation of isolating valves located directly before the inlet port and directly after discharge port is recommended This allows for removal of the pump without draining the complete system Pipes should be screwed together and not leak otherwise air may penetrate into the pump which will prevent the pump from sucking or on the discharge side the liquid could drop out It may be necessary to integrate silencers in the piping Start Up Shut Down 6 1 Prepare For Operation Seite 14 14 After complete installation before start up check the pump and the environment by following questions Is it possible to turn the pump by hand small pumps or with a tool big pump Are suction and pressure piping connected correctly Do pump and drive have the same direction of rotation Is the time of dry running restricted to a minimum Are the pump internals wetted with the liquid to be pumped if the pump has to prime max dry running time 20 sec mM are check valves valves in right position Pumpenfabrik Ernst Scherzinger GmbH amp Co KG Bregstr 23 25 78120 Furtwangen Germany Tel 49 0 77 23 65 06 0 Fax 65 06 40 E Mail info scherzinger de S HER ZINGER Rotary Gear Pumps 51 551 PUMP TECHNOLOGY E Are the pipes checked for leakage m Is it possible to stop the pump by an emergency switch in c
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