The diaphragm pump is mainly composed of the two parts of the transmission part and the diaphragm cylinder head. The transmission part is a driving mechanism that drives the disclosure back and forth. Its transmission form is mechanical transmission, hydraulic transmission, and air pressure transmission. Among them, hydraulic transmission is widely used. The working part of the diaphragm pump is mainly composed of a crank link mechanism, plunger, liquid cylinder, diaphragm, pump body, suction valve, and discharge valve. When the diaphragm pump works, the crank link mechanism drives the motor drive. The movement of the plunger was transmitted to the diaphragm through the working liquid (generally oil) in the liquid cylinder, which encouraged the diaphragm back and forth.

The following introduces the common faults and treatment methods of the diaphragm pump, so that everyone's maintenance of the diaphragm pump in the future work.

1. Types of failure: unable to start or move slowly

  a) Causes of faults: air inlet filter block blockage

       Processing method: Clean up the entry filter

  b) Cause of faults: The pneumatic valve does not work hard

       Treatment method: Check the A type of the air valve piston O -type ring

  c) Causes of faults: Lubricate oil is less or deteriorated

       Treatment method: replace the lubricant

2. Fail type: The medium flows out of the outlet of the gas chamber

   a) Cause of faults: diaphragm damage

        Processing method: Replace the diaphragm