The working principle of pneumatic diaphragm pump
Each of the two symmetrical working chambers of the pump is equipped with an elastic diaphragm. The connecting rod connects the two diaphragms into a whole. After the compressed air enters the air distribution valve from the intake joint of the pump, it pushes the two working chambers. The diaphragm action drives the two diaphragms connected by the connecting rod to move synchronously. At the same time, the gas in the other working chamber is discharged from the back of the diaphragm. Once it reaches the end of the stroke, the air distribution mechanism automatically introduces the compressed air into the other working chamber and pushes the diaphragm to move in the opposite direction. A synchronized reciprocating movement of the two diaphragms is formed. Each working chamber is provided with two one-way ball valves. The reciprocating movement of the diaphragm causes a change in the inner volume of the working chamber, forcing the two one-way ball valves to alternately open and close, thereby continuously sucking and discharging liquid.
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