Clamp type hard seal butterfly valve is used as valve mandarin rotational circular butterfly plate do open/close sex, in order to realize the opening action of pneumatic valve main do block valves use, can also design into a regulation or period of valve and control function, the butterfly valves in the low pressure big caliber pipeline use more and more.

Pneumatic clamp hard seal butterfly valve is the main advantages of simple structure, small volume, light weight, low cost, pneumatic butterfly valves the characteristics especially significant, installed in high altitude postern, after two five electromagnetic valve control operation is convenient, also can adjust flow medium.

Pneumatic clamp hard seal butterfly valve fluid resistance is small, large caliber pneumatic butterfly valves open when effective circulation area is larger, opening and closing quickly and cost, dish switch rotating 90 Angle can complete opening and closing, due to the shaft on both sides of the dish plate hand medium force close to equal, and produce torque in opposite directions, thus open-close torque is small, low pressure can be realized under good sealing, dish valve sealing materials have butadiene acrylonitrile rubber, fluorine rubber, edible rubber, lining four fluorine the seal performance is good, including hard seal butterfly valves for soft hard cascading metal sheet with metal hard seal and elastic seal heavy advantage, no matter in low temperature circumstances are excellent seal performance.