Remark: The pumps weight in the table are approximation.. Will be caused differences because of the components. Just for reference.

Material Temperature Limits(Diaphragm/ball/sealed material)

Stainless Diaphragm Pump MAINTENANCE

• Refer to the part views in the assembly chart for the parts’ number and name to understand the information of the part and service kits.
• Parts which marked with “Vulnerable parts”, to prepare these parts in hand will help you save time for fast maintenance and reduce downtime.
• Maintenance service kits’ functions are separated into 2 independent sections: 1, Air kits; 2, Wet kits.  Wet kits will be further subdivided to match the material options for typical parts.
  • Provide a clean work surface to protect sensitive internal moving parts from contamination from dirt and foreign matter during service disassembly and reassembly.
  • Keep good records of service activity and include pump in preventive maintenance program.
  • Before disassembling, empty captured material in the outlet manifold by turning the pump upside down to drain material from the pump

Troubleshooting guidance

1.Air outlet has fluid when pumping

 Check if the diaphragm be damaged

 Check if the diaphragm bolts loosening

2.The output fluid has bubble

  Check the suction pipe joints are well sealed

  Check the suction pipe and fluid inlet are well sealed

  Check the ring between fluid inlet and fluid cap are with O-ring

  Check the diaphragm bolts are fastened

3.Pumping capacity is low

  Check if the air supply is stable

   Check whether the inlet and outlet is blocked

   Check the joint to the fluid inlet is sealed and not leakage

   Check if the ball stick to the ball seat or ball seat is not suitable

4.  Without reciprocating motion, the air flow is discharged from the exhaust port

    Check the sealed ring of the main air valve

    Check the sealed ring of the pilot rod valve

    Check the sealed ring of the diaphragm rod