Diaphragm pumps are mainly divided into two categories: Pneumatic diaphragm pumps and electric diaphragm pumps. Pneumatic diaphragm pumps use compressed air as the power source, and realize volume changes through the reciprocating deformation of the diaphragm. They are suitable for various industrial fields and have the characteristics of simple structure, convenient maintenance, and adjustable flow. Electric diaphragm pumps are driven by electricity, and the diaphragm is reciprocated by the motor-driven reduction box. They are suitable for occasions that require electric drive and have the characteristics of high efficiency and energy saving.
Pneumatic diaphragm pumps
Pneumatic diaphragm pumps use compressed air as the power source. Their working principle is similar to that of plunger pumps, and volume changes are realized through the reciprocating deformation of the diaphragm. The design of pneumatic diaphragm pumps is flexible and changeable, and different materials and sealing materials can be selected according to different liquid media. Common materials include engineering plastics, aluminum alloys, cast iron and stainless steel, while sealing materials include nitrile rubber, chloroprene rubber, fluororubber, polytetrafluoroethylene and polytetrafluoroethylene.
Electric diaphragm pumps
Electric diaphragm pumps drive the reduction box through the motor, so that the plungers at the left and right ends drive the diaphragm to reciprocate back and forth. In the pump chamber, with the cooperation of the upper and lower four one-way ball valves, the movement of the diaphragm causes the volume of the working chamber to change, which in turn forces the four one-way ball valves to open and close alternately, thereby achieving continuous suction and discharge of the liquid.