What is the classification and selection of pneumatic plastic butterfly valve

Pneumatic plastic butterfly valve has strong corrosion resistance, valve body weight, wear resistance and other advantages, and its torque force is small, pneumatic switching speed is fast, can be used for cutting off the role of pipeline fluid, or for regulating flow, pressure, etc. Pneumatic plastic butterfly valve body structure adopts the middle line type, suitable for fluid: water, air, oil, corrosive chemical liquid.

It is used in the fields of pure water, raw water, sewage, salt water and sea water, etc. It is the key device to control the flow of corrosive medium in pipeline. Pneumatic plastic butterfly valve body material is made of PPH, RPP, PE, PVDF, CPVC, UPVC raw materials, sealing seat is made of EPDM or fluoro rubber (FPM), can withstand most of the acid, alkali, salt from low to high concentration of corrosion, according to different materials are generally temperature resistance of -14℃ ~ 100℃, -40℃ ~ 120℃, pressure in the range of 1.0Mpa.

Similar anticorrosive valves, such as the pneumatic fluorine butterfly valve, are also used in the corrosive condition of equipment, the body is split, the seal at both ends of the valve shaft is controlled by the rotary base between the butterfly plate and the seat with fluorinated rubber; Ensure that the valve shaft does not contact with the fluid medium in the cavity.