Diaphragm pump, also known as the controler, is the main type of actuator, by accepting the control signal from modulation unit, with power operation to change the fluid flow.Diaphragm valves and implement agencies are generally composed of diaphragm pump . Using compressed air as power source, for all kinds of corrosive liquid, with particles of liquid, high viscosity, volatile, flammable, poisonous liquid, all can be drawn to exhaustion.
There are four materials of Pneumatic diaphragm pump: plastic, aluminum, cast iron, stainless steel. Electric diaphragm pump ‘materials are same. Diaphragm pumps were used according to the different liquid medium with nitrile rubber, neoprene, Viton, PVDF, poly forty-six ethylene to meet the needs. Placed in a variety of special occasions, can be used for pumping media while others cann’t do.
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Diaphragm pump ,according the power of its executive body ,can be divided into pneumatic ,electric,hydraulic,that is ,the pneumatic diaphragm pump which use the source of compressed air-power;electric diaphragm pump with power source;and electric hydraulic pump with the liquid medium{such as oil}.Besides,It can be divided into solenoid valves ,electronic,intelligent,dieldbus type D pump according to its functions and features.There are many types of products of D pumps,and varied structures,but also constantly updated and changed.Generally speaking,valve is universal,not only can match with pneumatic actuator ,but also with the electric actuator or other executive agencies .