Common faults of pneumatic diaphragm pumps

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Causes and solutions for insufficient or excessive pressure in diaphragm pumps: 1. Improper adjustment of the pressure control valve in the pneumatic diaphragm pump； Adjust the pressure valve to the desired pressure. 2. The pressure control valve is malfunctioning ； Inspection pressure regulating valve 3 pressure gauge ； Maintenance or replacement of the pressure gauge. Causes and solutions for pressure drop in diaphragm pumps: 1. Insufficient oil supply from the oil filling valve ； Repair oil valve 2, insufficient feeding or leakage in the feeding valve ； Inspect the feeding condition and feeding valve 3; check for oil leakage at the plunger seal ； Inspect the sealing part 4; the oil level in the oil tank is too low ； Fill with new oil. 5. Pump body leakage or diaphragm damage ； Check and replace the gasket or diaphragm. Causes and solutions for insufficient flow in diaphragm pumps: 1. Leakage from the inlet and outlet valves ； Inspect or replace feed valve 2; diaphragm is damaged ； Replace the diaphragm. 3. The rotation speed is too low; adjustment is malfunctioning ； Maintenance control device, adjusts speed.