The pneumatic diaphragm pump does not operate or operates very slowly: 1. Check the filter or air filter of the air inlet end of the diaphragm pump for impurities. 2. Check if the diaphragm pump air valve is stuck with the cleaning fluid cleaning valve. The pneumatic diaphragm pump has no action. Or it works very slowly: Door Stoppers,Under Door Draft Stopper,Door Blocker,Door Wind Stopper Jiaxing Gates Hardware Products Co.,Ltd , https://www.jxgateshardware.com
1. Check the filter or air filter of the air inlet end of the diaphragm pump for impurities.
2. Check if the diaphragm pump air valve is stuck with the cleaning fluid cleaning valve.
3. Check if the diaphragm pump air valve is worn and replace it with new parts if necessary.
4. Check the condition of the sealing parts of the center of the diaphragm pump. If the wear is severe, the sealing effect will not be achieved, and the air will be discharged from the air outlet end. Please use only the GLYD ring due to its special construction.
5. Check if the piston activity in the diaphragm pump air valve is normal.
6. Check the type of diaphragm pump lubricant. If the added lubricant is higher than the recommended viscosity, the piston may get stuck or operate abnormally. It is recommended to use a light and anti-freezing lubricant. (ISO grade 15/5WT resistance Frozen oil)
The pneumatic diaphragm pump has action, but the flow is small or there is no liquid at all:
1. Check the cavitation of the pneumatic diaphragm pump to reduce the speed of the pump and let the liquid enter the liquid chamber.
2. Check if the valve ball is stuck. If the operating liquid is incompatible with the elastomer of the pump, the elastic body will expand. Please replace the elastomer with the appropriate material.
3. Check if the joint of the inlet of the pneumatic diaphragm pump is completely locked and not leaking, especially the clamp near the inlet end ball needs to be locked.
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