User Manual for SJ Series Metering Pump
Contents
1. 3 6 Instructions and quality certificate of products EN N 1 www sbpump com SJ Series Metering Pump A Series Metering Pump Trouble Shooting Table Serial No Malfunction Cause Trouble shooting 1 Reduce installation height or eae 1 Too high suction height reduce number of elbow valves No liquid f 1 f 2 Blocked suction pipe 2 Clean and dredge suction pipe discharge at all f j y 3 Air leakage in suction pipe 3 Press out or replace flange gaskets pouedon pipe ls partially BR 1 Clean and dredge suction pipe 2 Blocked sundries in suction or j 2 Clean suction and discharge discharge valve 3 Air left in oil filling cavity valves SEEN 3 Manual oil filling to force safety 4 Insufficient or excessive oil in oil Inadequate i valve to discharge oil 2 a filling cavity liquid discharge 4 Complement and fill or 5 Oil leakage in surge valve or j f discharge oil manually safety valve 5 Grind the valve 6 Closure lax caused by worn 6 Repair or replace valve parts pump valves 7 Examine motor and voltage 7 Insufficient rotation rate g 1 Blocked sundries in suction or discharge valve 1 Clean suction and discharge 2 Oil leakage at joint of valves 3 Unstable pressure diaphragm limit board or 2 Screw down joint bolts discharge discharge pipe 3 Adjust safety valve or surge 3 Safety valve or surge valve valve malfunction oo ale Taft taoil wg 1 Manual oil filling to force safety y val2. for disassembly of it B Assemble the fluid end of diaphragm metering pumps on the driving stand by means of the reverse order for disassembly of it Adjust the oil filling valve set and safety and air vent valve set and before assembling the air vent and safety valves fill enough hydraulic oil to exhaust the air in the in the hydraulic pressure cavity During the trial operation the coupling should be able to work smoothly without any block and jam 2 2 Diaphragm type fluid end 1 Structural principle for diaphragm metering pumps The fluid end of diaphragm metering pumps Figure 2 is mainly composed of plunger cylinder block cylinder head inlet and outlet valves diaphragm and three valves safety valve air vent valve and surge valve During operation diaphragm can block off hydraulic oil and medium as a result diaphragm metering pumps boast fully leak tight advantages building up their position as an ideal tool to deliver inflammable explosive volatile highly corrosive radioactive deadly poisonous suspending and expensive fluids The fluid end plunger of diaphragm metering pumps is driven by the reciprocating movement of the crank connecting rod mechanism at the driving end The reciprocating movement of plunger in the hydraulic pressure cavity increase pressure of the hydraulic oil to deliver medium by deflection of the diaphragm The stable volume of hydraulic oil in the hydraulic pressure cavity is maintained by the three valve
3. User Manual for SJ Series Metering Pump Professional Metering Pump Manufacturer Shanghai Shenbei Pump Manufacture Co Ltd CONTENTS Buunpejnuew jEUOISSIJOAd su Is9p EUOISSIJOJd SJ Series Metering Pump Overview u u um um FF 02 Configuration Principle 03 Installation Requirements 07 Users Guide 07 Maintenance and Disassembly and Assembly of Pumps Trouble Shooting Table 10 www sbpump com SJ Series Metering Pump A Series Metering Pump Overflow SJ series of metering pumps are used to non leakage delivery of various corrosive and hazardous liquids Their technical parameters and inspection specifications stringently comply with GB 7782 1996 for metering pumps Metering pumps with a flow rate of 0 2 50000L h and pressure of 0 25 50MPa are divided into plunger metering pumps and diaphragm metering pumps in terms of liquid end However when measured by stands they can be divided into 14 series SJ1 SJ2 SJ3 SJ4 SJ5 SJ6 SJ7 SJ1 M SJ2 M SJ3 M SJ4 M SJ5 M SJ6 M and SJ7 M Users usually choose metering pumps based on their simplex parameters In addition they can also choose a multiplex combination of metering pumps with uniform stands and specifications or a combination of those with different stands and specifications These series are especially suitable for the propotioning delivery of various
4. aphragm metering pumps with uniform stands and specifications pipe installation should be based on process flows and pressure ratings follow a high low order while starting from the motor for those with different stands and specifications and following a high low order in installation all the users have to do is to connect pipes 8 Other technical requirements for pump installation should be in compliance with Code for construction and acceptance of mechanical equipment installation engineering TJ231 5 78 9 Please see the installation dimension diagram for external dimensions and installation dimensions of pumps Users Guild 1 Preparation before pump operates Before the pump operates check to ensure that all connecting bolts and nuts are tightly fastened Use coal oil to scrub away the anticorrosion greases or dirt attached on the new pump Do remember not to scrape with a knife Pour into the driving box appropriate L CKE460 worm gear oil SH T0094 1991 or L CKC460 industrial closed gear oil GB5903 1995 and the oil level should reach the horizontal midline Pour appropriate L HM46 hydraulic oil into the hydraulic oil tank of diaphragm metering pump and the oil level should reach the horizontal midline or the oil line Turn the coupling to make the plunger move to and fro without any block and jam Connect the power supply to start the motor which should rotate in the same direction as the arrow plate of the pump The inlet a
5. d of spool adjusting screw nuts adjusting screws handwheel pointer and scale It can directly adjust the relative stoke of the plunger 2 Fluid end 2 1 Plunger type fluid end 1 fluid end structure of plunger metering pumps The fluid end of plunger metering pumps refer to Figure 1 mainly composes of plunger cylinder block inlet and outlet valves and stuffing seal 2 Principle for fluid end of plunger metering pumps The plunger connects the crosshead and the reciprocating movement of the crank connecting rod mechanism facilitates the operation When the plunger moves to the left intake stroke the cylinder block becomes vacuum with the outlet valve tightly closed and the inlet valve automatically opens and then medium enters the cylinder block in tandem with a change in differential pressure when the plunger moves to the right discharge stroke high pressure is formed in the cylinder block with the inlet valve tightly closed and the outlet valve forced to open as a result of the raised pressure Then the medium enters the flow pipe in tandem with change of the differential pressure realizing medium delivery EL fag Lek Figure 1 Structural schematic view for plunger based fluid end EN N 1 www sbpump com SJ Series Metering Pump A Series Metering Pump Configuration Principle 2 Disassembly and assembly 2 1Disassembly of fluid end of plunger metering pumps Move the plunger forward to the dead point and remove fro
6. f the fluid end sequentially as follows A Dismantle safety air vent and surge valves B Dismantle inlet and outlet valve flange and then take out the valve barrel valve ball and valve seat C Screw the nuts on the cylinder head to dismantle it and then take out diaphragm D Dismantle the bolts used to fasten the cylinder block and the bracket and then take out the cylinder block plunger hydraulic cylinder and finally the limit valve components E Dismantle the nuts connecting the bracket and gear box and then take out the bracket 2 3 Follow orders below to assemble it A Assemble the fluid end of plunger metering pumps on the driving stand by means of the reverse order for disassembly of it B Assemble the fluid end of diaphragm metering pumps on the driving stand by means of the reverse order for disassembly of it Adjust the oil filling valve set and safety and air vent valve set and before assembling the air vent and safety valves fill enough hydraulic oil to exhaust the air in the in the hydraulic pressure cavity During the trial operation the coupling should be able to work smoothly without any block and jam hydraulic pressure cavity During the trial operation the coupling should be able to work smoothly without any block and jam 3 Supply Range of Complete Set 3 1 One metering pump 3 2 One motor 3 3 Inlet and outlet flange special orders 3 4 Accessories and spare parts special orders 3 5 Packing list
7. gure 4 Limit surge device Figure 3 Air vent and safety valves O Figure 5 Work flow chart o Kk DI AS itty www sbpump com I Ss series Metering Pump Series Metering Pump Installation Requirements 1 The pump should be mounted on a dedicated concrete foundation or steel platform and fastened with anchor bolts after emendation The concrete foundation should be 50 100mm above the ground 2 Diameters of the suction and discharge pipes should be not less than those of the inlet and outlet pipes and try hard to shorten the suction pipe If the suction pipe is too long or there are too many angular pipe unions an NPSHa calculation is needed so as to meet the needs of the net positive suction head 3 Measuring instruments such as pressure gauges self prepared by users should be installed in the connecting pipe 4 Filter devices self prepared by users should be mounted at the end of the suction pipe 5 Safety valves or safety relief valves self prepared by users should be mounted in the discharge pipe Pressure stabilizers self prepared by users may be mounted near the pump s discharge pipe to reduce exit pressure fluctuation if necessary 6 Control equipmet of Electric appliance which should better be mounted at the working location of the pump is called to be equipped with switch protection device in line with medium delivery so as to ensure safety 7 For multiplex pumps plunger metering pumps or di
8. m the crosshead After dismantling the suction and discharge pipe flange remove the flange nuts and dismantle the entire fluid end from the stand Then dismantle all the parts in the hydraulic cylinder sequentially as follows A Pull out the plunger to dismantle the gland cover and then take out the stuffing seal shaft seal and plunger bushing B Dismantle suction pipe flange and then take out the valve barrel valve ball and valve seat 2 2 Disassembly of fluid end of diaphragm metering pumps Screw the inside hexagon bolt at the bottom of the bracket to let out the hydraulic oil Turn the coupling of the motor to move the plunger forward to the dead point and then remove from the crosshead After dismantling the fluid end from the stand dismantle parts of the fluid end sequentially as follows A Dismantle safety air vent and surge valves B C Screw the nuts on the cylinder head to dismantle it and then take out diaphragm Dismantle inlet and outlet valve flange and then take out the valve barrel valve ball and valve seat D Dismantle the bolts used to fasten the cylinder block and the bracket and then take out the cylinder block plunger hydraulic cylinder and finally the limit valve components E Dismantle the nuts connecting the bracket and gear box and then take out the bracket 2 3 Follow orders below to assemble it A Assemble the fluid end of plunger metering pumps on the driving stand by means of the reverse order
9. media in process flows to accommodate their needs There are two ways to adjust the flow rate of metering pumps One is to change the length of the plunger stroke the optimal relative stroke length is 30 100 with measuring accuracy of 1 whenever the pump halts or operates while the other one is to regulate the input frequency of power supply with a transducer to adjust the pump speed Metering pumps are used to deliver liquids without solid particles with temperature of 30 100 up to 300 for special liquids and viscosity of 0 3 800mm2 s Thanks to their non leakage advantages diaphragm metering pumps can be leveraged to deliver inflammable explosive volatile highly corrosive radioactive deadly poisonous suspending as well as expensive fluids Typeand Specification Compilation Description Enterprise logo Frame cushion number Flow TER TI TT TT T 2S J3 M 100 05 B P Quantity cylinder Diaphragm Pressure Material Metering pump SWE RAE www sbpump com I ss series Metering Pump Series Metering Pump Configuration Principle A finished metering pump consists of motors driving end and fluid end 1 Driving end Principle for deceleration and adjustment of driving end The motor slows down with the functioning of the worm gear The spool eccentric wheel and coupler constitute the crank mechanism This together with the crosshead results in the The plunger stroke adjustment mechanismis compose
10. nd outlet valves on the pipe should be fully open 2 Adjustment for flow rate of pumps In line with requirements of the process check the calibration curve to get a value and then adjust the adjusting quantity meter to the corresponding value The flow rate should be adjusted in the low high direction ZU AY tr SFR ell te www sbpump com SJ Series Metering Pump A Series Metering Pump Should a high low direction be needed pay attention to the rotation of the pointer and when the pointer reach the position required and see an overrun adjust the pointer to the required numerical value Lock the adjusting turntable when the adjustment finished Adjust stoke of the pump during halt or operation After the adjustment it takes some one to two minutes for the pump to see a stable flow rate The greater the stroke length changes the longer it will take for a stabilized flow rate to be seen 3 Operation of pumps When the above work finishes start the motor and the pump will work 4 Halt First of all keep the outlet throttle valve fully open and reduce to constant pressure by discharging pressure Then cut off power supply to halt operation of the motor Maintenance and Disassembly and Assembly of Pumps 1 Maintenance Gear box and hydraulic oil box should keep amount of oil as appointed Lubricating oil and hydraulic oil should be pure and replaceable according to the cycle listed below Term for change of lubricating oil Term
11. of use Oil change cycle Oil change cycle Every 3 months Every 3 months Every 6 months After operation for 2 000 3 000 hours disassemble the pump to examine parts inside and replacevenerable components Should the pump not operate for a long period drain away the medium in the hydraulic cylinder clean its surface and daub rust preventive oil on the surface During the store period the pump should be kept in a dry place and enveloped with a cover 2 Disassembly and assembly 2 1Disassembly of fluid end of plunger metering pumps Move the plunger forward to the dead point and remove from the crosshead After dismantling the suction and discharge pipe flange remove the flange nuts and dismantle the entire fluid end from the stand Then dismantle all the parts in the hydraulic cylinder sequentially as follows A Pull out the plunger to dismantle the gland cover and then take out the stuffing seal shaft seal and plunger bushing B Dismantle suction pipe flange and then take out the valve barrel valve ball and valve seat 8 2 2 Disassembly of fluid end of diaphragm metering pumps Screw the inside hexagon bolt at the bottom of the bracket to let out the hydraulic oil Turn the coupling of ZU A tr BS RR il te www sbpump com I Ss series Metering Pump Series Metering Pump the motor to move the plunger forward to the dead point and then remove from the crosshead After dismantling the fluid end from the stand dismantle parts o
12. s The air vent and safety valves refer 5 4 ZAER il te www sbpump com I Ss series Metering Pump Series Metering Pump Configuration Principle Figure 3 will be able to let out the air in the hydraulic pressure cavity from the hydraulic oil ensuring smooth operation while avoiding the adverse effect of automatic oil discharge arising from excessive pressure caused by overfull hydraulic oil or a blocked drainage pipe Leveraging the diaphragm to drive the span of the limit valve the limit surge device refer to Figure 4 will be able to renew oil according to the vacuum degree in the hydraulic pressure cavity ensuring the fullness of hydraulic oil in the cavity 2 Adjustment for safety valve opening pressure Safety valve has been checked according to rated discharge pressure before leaving the factor Should there be any variance between the actual and rated discharge pressure please adjust it according to the following table Unit MPa Actual discharge pressure P 0 2 1 0 1 3 4 0 5 0 8 0 10 0 16 0 Safety valve opening pressure P1 p 0 3 1 3p 1 2p 1 lp Air veni and ey vahat Er J Sue aal mdt wabe g surge valve A inet valve 5 Figure 2 Structural schematic view for diaphragm based fluid end EN N 1 www sbpump com SJ Series Metering Pump Configuration Principle ze thf a lead L AE rer 55 Seat ler FE HATE A Ny i U gee E JO Ze BETAN Fi
13. ve to exhaust air 2 Safety valve or surge valve A 2 Adjust safety valve or surge malfunction Inadequate valve 3 Oil leakage at plunger seal 4 measuring stuffing 3 Adjust or replace seal ring er 4 Permanent deformation of 4 Replace diaphragm 5 Replace new parts diaphragm 6 Stabilize power suppl 5 Worn suction or discharge valve e er in A PP y 6 Unstable rotation rate of motor q y g Sn or badly worn anning 1 Tightly Screw related bolts or 2 Too high suction height replace en pers f f f f 2 Lower installation height 3 Air leakage in suction pipe f Impulsive sound Sele as 3 Press out suction flange 5 f 4 Excessive oil in diaphragm during operation eit 4 Gently press surge valve to ae f discharge oil manually 5 Air left in medium oa f 5 Exhaust air in medium 6 Diameter of suction pipe too f 6 Enlarge diameter of suction pipe short 1 0 Delivery medium 6 1 Cracked diaphragm 1 Replace new parts oil polluted ZU A tr BS RR il te www sbpump com www sbpump cn EFA 12 Nb FT PR ZS Shanghai Shenbei Pump Manufacture Ltd Sudit Address 78TH 77 5RER839 S 839 Wanrong Rd Shanghai FA Tel 86 21 56034268 56652308 fH Fax 86 21 56652046 hx it Web www sbpump com www sbpump cn FAHR E mail sbpump 163 com FARR AFAKRAA RRS Ole SIRTUA Ba BR ATA Shenbei pump has always been devoting to reseach and Be of pump any PA specification is subject to change without notice
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