Pneumatic Double Seat Control Valve Size: DN 20 to DN 300 Pressure: PN16 to PN100, Class 150 to  Class 600 Medium: Water, Oil, Steam, Gas Temperature : -196℃ to 450℃ Body Material: WCB, LCB, CF8, CF3, CF8M, CF3M Connection: Flanged, Butt weld Position type: Air pressure increase, valve close or opposite Characteristic: Linear, Equal percentage, […]