| Common Faults | Corresponding Solutions |
| Shaft seal wear/aging | Replace with a new shaft seal |
| Improper installation/excessive clearance of seals | Reinstall the seals in a standardized way and adjust to the standard clearance |
| Damaged/loose gasket on pump body joint surface | Replace the gasket and tighten the joint surface bolts to the specified torque |
| cracks in pump body castings | Repair cracks by weld repair, replace the pump body if severe |
| Poor sealing of inlet and outlet flanges | Clean the flange sealing surface, replace the gasket and tighten the bolts evenly |
| Excessive fit clearance between rotor and stator | Replace worn rotor/stator and restore the standard fit clearance |
| Insufficient cooling/lubrication of mechanical seal | Check the cooling/lubrication system to ensure sufficient medium supply |
| Abnormally high pressure inside the pump | Troubleshoot outlet pipeline blockage/valve faults to reduce the internal pump pressure |
| Impurities and scratches on the sealing surface | Remove impurities on the sealing surface and polish to repair minor scratches |
| Loose fasteners (bolts/nuts) | Tighten all loose fasteners one by one to the standard torque |
Kaiyan supplies Complete generic replacement NEMO/Netzsch/Seepex/Mono progressive cavity pump spare parts，such as stators, rotors, coupling rod, driving shaft, seals, and are suitable for NETZSCH/SEEPEX/MONO screw pump parts. We have enough stock to ship at any time. learn more
Custom solutions, contact us.Email:celia@kynspump.com,WhatsApp:+86 153 1226 1613
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