[Essential information]      
        The pneumatic film two seatcontrol valve adopts a double guiding structure, the valve body is compact, the fluid channel is S streamlined, the pressure loss is small, the flow flux is large, the range of adjustment is wide, and the flow characteristic precision is high. Due to the guidance of the top and bottom of the valve core, the utility model has the characteristics of shock resistance and wear resistance. The valve is equipped with multi spring diaphragm actuator has the advantages of small structure, large output force, more suitable for the requirements of good stability, good control of process conditions to block containing silt oar of high reliability, high pressure and high pressure difference and fluid medium under.

[Adaptive condition]
        Pneumatic diaphragm control valve seat assembly, the inner wall of the valve body in contact with the fluid and valve are high-pressure injection molding process, lined with corrosion and aging of FEP (F46), and the use of PTFE bellows seal. Widely used in acid, alkali and other strong corrosive media and toxic, volatile and other gases, liquid control.