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Common trouble shooting method of pneumatic diaphragm pump

The pneumatic diaphragm pump troubleshooting steps:

1. Remove the pneumatic diaphragm pump, the left and right sides of the air chamber and the liquid chamber were labeled to help the subsequent re assembly action
2. Use a wrench will connect outlet pipe and a liquid chamber pickup hoop is loosened, demolition of outlet pipe can see the valve ball and the valve seat, took the ball and seat and check the pump other spare parts, abrasion, corrosion, cracks and other phenomena.
3. Use a wrench will connect inlet pipe and the liquid chamber of the pickup hoop is loosened, demolition of outlet pipe can see the valve ball and the valve seat, took the ball and seat and check the pump other spare parts, abrasion, corrosion, cracks and other phenomena.
4. Use a wrench to separate the liquid chamber and the pump intermediate, remove the chamber and the diaphragm plate.
5. The left and right edges of the outer clamping plate are fixed with a tool or a wrench, and the separator and the intermediate are separated. And then clockwise to loosen the diaphragm. Remove the shaft from the intermediate after removing the outer membrane of the membrane.
6. Use clamp with cushion board) axis will separate from the diaphragm device, check the shaft, a clamping plate, the diaphragm is damaged and corrosion.
7 install from step 6 to step 1

 Pneumatic, electric diaphragm pump fault performance and check processing method

1.Failure (1): diaphragm pump air valve icing:
Treatment: check whether the compressed air moisture is too high, the installation of air drying equipment
Failure (2): the outlet of the diaphragm pump is produced by air bubbles:
Treatment: check the diaphragm is broken, check clamps for locking, especially the entrance clamp.
Failure (3): pneumatic diaphragm pumps have action, but the flow is small or no liquid outflow
Treatment: check the diaphragm pump cavitation, reduce the pump speed to enter the liquid liquid chamber.
2. Check valve ball is stuck. If the liquid is not compatible with the elastic body of the pump, the elasticity will be expanded. Please replace the elastomer with the appropriate material.
3. Check the connection of the inlet of the diaphragm pump is completely locked does not leak, especially in the vicinity of the entrance end of the ball clamp to lock.
Failure (4): pneumatic, electric diaphragm pump no action or operation is very slow:

Treatment:

1. Check the air inlet side of the filter screen or air filter device has impurities.
2. Check whether the air valve is stuck, clean the air valve with the cleaning fluid.
3. Check whether the air valve is worn, replace the new parts if necessary.
4. Check the centrosome sealing condition of the parts, if serious wear and tear, unable to achieve sealing effect and air will from the air outlet end of the drain. Because of its special structure, please use only the GLYD cycle.
5. Check whether the piston in the air valve is normal.
6. Check the types of lubricating oil. If the added lubricant is higher than the viscosity of the recommended oil, the piston may be stuck or not functioning properly. Recommended for use in light and antifreeze lubricants. (ISO grade 15/5WT antifreeze oil)
Failure (5): the product flow from the air vent:
Treatment: check the diaphragm is ruptured, check the diaphragm and the internal and external splint on the shaft is clamped
Fault: (6) valve rattling
Treatment: to increase the outlet or inlet head.

 Pump disassembly and re assembly guide:

Warning: in repairing the pump before the first air source pipe from the pump will be removed, and the air pressure in the discharge pump. Remove all of the inlet and outlet pipes of the pump, and then discharge the fluid within the pump to the appropriate container. Wear protective cap, glasses, gloves

Diaphragm pump similar products: stainless steel gas dynamic diaphragm pump, plastic air operated diaphragm pumps, pneumatic diaphragm pump, mini air operated diaphragm pumps, pneumatic diaphragm, aluminum alloy gas dynamic diaphragm pump and electric diaphragm pump, the third generation of gas pneumatic diaphragm pump, iron pneumatic diaphragm. 

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