Pneumatic rapid close butterfly valve, commonly known as pneumatic fast cut-off valve,is composed of pneumatic actuator and butterfly valve equipped with pneumatic quick closing components. Fast cut-off time up to 0.3 seconds ~ 0.5 seconds, provides a reliable emergency cut-off performance; the end of the valve is buffered, which can effectively avoid the damage caused by inertial impact. The explosion-proof pneumatic quick-closing butterfly valve can meet the requirements of various explosion-proof grades.

Nominal diameter: DN50~1200

Connection type: flange, clamp type

Actuator configuration: AT、GT、AW series

Cylinder form: Single acting, double acting

Nominal pressure: 16、25、40bar（please specify if higher pressure needed）

Gas source pressure: 4~7bar

Medium temperature: W1:-40~180℃、W3：-30~425℃、W4：-40~425℃

Ambient temperature Standard:-20~80℃

Valve body material: Carbon steel(C), stainless steel(P4、P6), ductile iron, etc

Seal material: Rubber ( X ), PTFE ( F ), metal hard seal ( H ), hard alloy ( Y )