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8.0 PERIODIC MAINTENANCE 

 

8.1 Cleaning and storage of the pump 

Do not let your fluid dry in the pump or in the hoses. It may harm the pump. Clean the pump regularly 
by  pumping  a  suitable  solvent  for  your  fluid  until  the  pump  is  cleaned.  Make  sure  the  fluids  you  are 
using  are  compatible  with  your  diaphragm  material.  If  you  are  not  going  to  use  the  pump  for  a  long 
period, clean the pump and relieve the pressure.  
 

8.2 Tightening the screw connections 

Inspect  damage  on  the  hoses  before  every  use  and  change  if  necessary.  Check  all  the  screw 
connections for tightness and seals against leak. Check the screw connections every two months and 
re-tighten with proper torque. First tighten the fluid cover screws than the manifold screws. Tighten the 
screws applying the proper torque from the torque chart. (Fig. 7) 

 

8.3 

Daıly maıntenance 

1-

 Check the air filter and regulator. 

2-

 Check if there is water or moisture in the filter. 

3-

 Check the air pressure set value of the pressure regulator. 

4-

 After you finish work, clean the pump by pumping a suitable solvent for your fluid until the 

pump is cleaned. 

 
8.4. 

Weekly maıntenance 

1-

 Apply the instructions for daily maintenance. 

2-

 Clean the check valve balls and ball seats. 

3-

 Clean the exhaust. 

 

8.5. 

Monthly maıntenance

 

1-

 Check the valve balls diameter. Check the inner diameter of the ball seats.  

2-

 Ball diameter must be bigger (at least 1.5 mm) than the inner diameter of the seat. Both of 

them must have a smooth surface.  

3-

 If there is capacity decrease change both the balls and seats. 

4-

 Check the pilot valve and the o-rings. 

5-

 Check diaphragms. 

6-

 Clean the wetted parts of pump. 

7-

 After 500 hours of operation or once a month stop the pump. Relieve the pressure in it. 

Remove the air hose. Apply 2 drops of suitable oil to the pump air valve inlet and insert the air 
hose again. 

 

 
 
 
 

 

 

 

 

CAUTION ! 
The extra oil is emitted from the exhaust. The exhausted oil may dirty the 
pumped fluid and environment. 

Summary of Contents for A8-PVX

Page 1: ...HRAGM PUMP 5 0 MOUNTING AND CONNECTING OF DIAPHRAGM PUMP 6 0 INSTRUCTIONS AND MANUAL OF DIAPHRAGM PUMP 7 0 ASSEMBLY AND DISMANTLING OF PARTS 8 0 PERIODIC MAINTENANCE 9 0 STORAGE OF DIAPHRAGM PUMP 10 0...

Page 2: ...not surpass the strength of minimum system compound j Learn hazards or potential dangers of your fluid k Choose the wet pump parts material resistant to your fluids Refer to the Proper Material Fluid...

Page 3: ...r physical damage Use only genuine RAN parts and accessories WARNING Running the pump with hot liquids may cause the surface of the pump to heat up above 80 Co Under these conditions it is pump owner...

Page 4: ...aterial Temperature limits BUNA N 12 2 C 65 6 C PTFE teflon 4 C 104 4 C Santoprene 28 9 C 104 4 C Polyurethane 12 2 C 65 6 C V TON 40 C 176 7 C Neoprene 17 8 C 93 3 C EPDM 51 1 C 137 8 C 3 0 DIAPHRAGM...

Page 5: ...rces diaphragm A away from the center block while at the same time the connected shaft pulls diaphragm B to the center block Diaphragm A is now on its discharge stroke Diaphragm A forces the inlet val...

Page 6: ...IAL B 1 2 A Aluminium 0 Buna N C 3 4 P Polypropylene 1 PTFE teflon BODY MATERIAL D 1 C Cast Iron S Santoprene INLET OUTLET E 1 S Stainless Steel F 2 PV PVDF G 3 3 3 Main parts of diaphragm pump Figure...

Page 7: ...0 HANDLING MOVING OPENING THE PACKAGE OF DIAPHRAGM PUMP Handle the pump from manifolds to move We pack the pumps into carton boxes Figure 4 Pump package Pump package must be at least 130 grams and pro...

Page 8: ...ying on the ground or upside down The pump will not run correctly and check valves and diaphragms will wear out very quickly due to constant dry running When installing the pump ensure that it is bala...

Page 9: ...e skin injury from moving parts or contamination from hazardous fluids See Fig 7 1 Refer to the Figure 7 for the connection scheme Fix these accessories to the wall or to a bracket The air line feedin...

Page 10: ...mp operation 4 At inlet fluid pressures greater than 15 psi 0 1MPa 1 bar diaphragm life will be shortened 5 5 2 Fluid discharge line 1 Use a conductive fluid hose or pipe The pump fluid outlet is 1 4...

Page 11: ...outlet hose can cause the pump to stop or even reverse operation In this case a pressure relief system bypass line MUST be installed When using long pipelines that may be pumping cold fluid with hose...

Page 12: ...rator has to make precautions to drain the fluid CAUTION In case of diaphragm rupture transferred fluid may exit through the exhaust air line and dissipate into the environment Place exhaust line in c...

Page 13: ...leed type master air valves 7 Increase the air pressure slowly using the air regulator untill the pump primes Set air regulator to 2 bar pressure Operate the pump slowly until it is fully loaded 8 Wor...

Page 14: ...fixed b Before pulling out the hose from the pump put a container under the pump Pull it out slowly and carefully 7 0 ASSEMBLY AND DISMANTLING OF PARTS This explanation uses figure defined in part 7 0...

Page 15: ...fluid covers off the pump 4 Loosen both the diaphragm shaft bolts using a 13 mm wrench and remove one bolt but not both 5 Remove o ring Teflon diaphragm if applicable and rubber diaphragm 6 Pull the o...

Page 16: ...Push a tap with your finger until the valve core comes out 4 Valve core should move in the valve body little bit tightly If it moves loosely the teflon rings must be worn They must be changed also 5...

Page 17: ...ulator 2 Check if there is water or moisture in the filter 3 Check the air pressure set value of the pressure regulator 4 After you finish work clean the pump by pumping a suitable solvent for your fl...

Page 18: ...18...

Page 19: ...lace seats or o rings Loose diaphragm shaft bolt Tighten or replace Damaged o ring Replace 5 Fluid in exhaust air Diaphragm is ruptured Replace Loose diaphragm shaft bolt Tighten or replace Damaged o...

Page 20: ...er you are done 10 0 PRECAUTIONS ON DISPOSING OF THE DIAPHRAGM PUMP Follow these precautions before disposing of the pump 1 Discharge the pump completely 2 Disconnect all the hoses 3 Clean the pump th...

Page 21: ...iddle part 4 16 A3203 Valve button seal 1 37 A3502 Inlet center manifold 1 17 A3204 Valve reset button 1 38 Manifold fixing bolt 8 18 A3002 Valve gasket 1 39 Manifold fixing washer 8 19 Valve fixing b...

Page 22: ...22 Figure 13a Pump assembly scheme for RAN 1 4...

Page 23: ...23 ATTACHMENT 1 1 4 DIAPHRAGM PUMP PERFORMANCE CHARTS Reduce the flow rate by 20 if there are PTFE diaphragms on your pump...

Page 24: ...f inspection of the equipment does not disclose any defect in material or workmanship repairs will be made at a reasonable charge which charges may include the costs of parts labor and transportation...

Page 25: ...25 Gisan Makine San Tic Ltd ti Birlik Sanayi Sitesi 3 Cadde No 83 Beylikd z Istanbul TURKEY Tel 00 90 212 875 03 17 pbx Faks 00 90 212 875 03 18 E mail Web info ranpump com www ranpump com...

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