Pneumatic Screw Buckle Cut-off Valve

1.Drive method and characteristics: make the compressed air as power, able to quickly drive the valve open and close through pneumatic executor. It has the characteristics that quick response speed, generally, the open and close time within several seconds, applicable to the fields where need quick action. Dual action and single action: have both dual action and single action types. Dual action able to generate the acting force when air source supply air and venting, make the valve quickly open and close; single action executor based on air source supply air to open or close valve, realize the reverse action assisted by spring force, has the advantages that simple structure and lower cost. 2. Sealing performance, high efficiency sealing: generally, adopt the precision machining sealing surface, metal-metal or metal-non metal cooperation, able to realize better sealing effect, low leakage ratio, able to prevent medium leaked, meeting the sealing requirement under different working situ…