Pneumatic plastic butterfly valve has the advantages of strong corrosion resistance, light weight of valve body, wear resistance, etc., and its torque force is small, pneumatic switch speed is fast, it can be used for cutting off the pipeline fluid, or for regulating flow, pressure, etc.
Pneumatic plastic butterfly valve body structure adopts central line type, applicable fluid: water, air, oil, corrosive chemical liquid. It is used in the fields of pure water, raw water, sewage, brine and sea water, etc. it is the key device to control the flow of corrosive medium in the pipeline. The valve body of pneumatic UPVC butterfly valve is made of PPH, RPP, PE, PVDF, CPVC and UPVC. The sealing seat is made of EPDM or FPM.
It can withstand most of the corrosion of acid, alkali and salt from low to high concentration. According to different materials, the general temperature resistance is – 14 ℃ – 100 ℃, – 40 ℃ – 120 ℃, and the pressure is within 1.0MPa. Similar anti-corrosion valves, such as pneumatic fluorine lined butterfly valve, are also used in corrosive conditions.
The valve body adopts a split type, and the sealing at both ends of the valve shaft is controlled by adding fluorine rubber to the rotating base surface between the butterfly plate and the valve seat to ensure that the valve shaft does not contact with the fluid medium in the cavity. Pneumatic PP butterfly valve pneumatic plastic butterfly valve in the use of media, generally clean liquid and gas, and can not contain granular impurities, otherwise it will cause objects scratch the seal ring, resulting in leakage! In case of high pressure or temperature, pneumatic hard seal butterfly valve can be selected!