Pneumatic Double Seat Control Valve Port size:DN20 to 300; NPS 3/4〞to  12〞 Pressure:PN16 to 100;150LB to  600LB Medium:Water,oil,steam,gas Temperature :-196 to 450℃ Body material:WCB,LCB,CF8,CF3,CF8M,CF3M Connection:Flanged,butt weld is optional Position type:Air pressure increase, valve close or opposite Characteristic:Linear, Equal percentage,quick open Voltage:Depond on accessories Other:Single seat,double seat,sleeve is optional Pneumatic control valve Body type: straight through […]