Common faults in the use of pneumatic diaphragm pumps include: pump failure to start or slow action, pump running but with low flow rate, large amount of bubbles in the pump outlet liquid, and liquid leakage from the gas chamber outlet; Here are professional solutions for you.
1, The pneumatic diaphragm pump cannot be started or operates slowly
1. Check if the filtration, pressure regulation, and lubrication devices, as well as the air inlet filter screen, are blocked.
2. Check if the air valve is stuck by impurities. Please remove the air valve and clean it thoroughly. Check if there are any scratches on the piston inside the air valve. If the surface of the piston is bright but not pure black, it indicates that the piston and O-ring need to be replaced due to wear.
3. Check the spindle and O-ring for scratches, wear, and flattened marks. If damaged, replace them.
2, The pneumatic diaphragm pump is running but the flow rate is too low
1. Check for cavitation spots on the pump body and adjust the inlet pressure of compressed air. Reduce the operating speed of the pump body to adjust the viscosity and concentration of liquids.
2. Check if the valve ball is stuck. If the conveyed liquid does not match the material of the valve ball. The valve ball will expand. Please replace the valve ball and valve seat with appropriate materials.
3. Please check if the inlet pipeline is blocked.
3, The outlet liquid of the pneumatic diaphragm pump contains a large number of bubbles
1. Please check if the diaphragm is broken.
2. Check for leaks in the pump body and pipelines.
4, The liquid of the pneumatic diaphragm pump leaks out from the discharge port of the air chamber
1. Please check if the diaphragm is broken.
2. Check if the diaphragm is installed and locked correctly.