API Hard seal butterfly valve

Hard Sealing Butterfly Valve
Eccentric hard sealing butterfly valve for the metal seal structure, sealing the form of metal on metal seal can be metal exchange of the metal seal ring, stainless steel and graphite composite plate on the metal seal ring. Hard sealing butterfly valve electric drive in addition to outside of the form There are: manual, worm gear drive rod, pneumatic, etc.. 
Hard seal butterfly valve plate mounted on the pipe diameter direction. Cylindrical channel in the butterfly valve, the disc-shaped butterfly plate around the axis of rotation, rotation angle 0¡ã ~ 90¡ã between the 90 ¡ã rotation, the valve is full-state license.

New high-life characteristics of stainless steel butterfly valves and butterfly valves in the use of process problems

At present, the hard-seal butterfly valve as a pipeline system used for on-off and flow control components, has been in the petroleum, chemical industry, metallurgy, water, electricity and many other fields has been very widely used. The public to know in the butterfly valve technology, the use of its seal form sealed structures, sealing materials for rubber, PTFE and so on. Structural characteristics as a result of the restrictions, not meet high temperature, high pressure and corrosion resistance, abrasion resistance and other industries. A more advanced existing three eccentricity metal butterfly hard seal butterfly valve, valve body and seat components for the Siamese, the valve seat sealing surface layer welding temperature, corrosion resistant alloy material. Stacked multi-layer soft ring fixed in the valve plate, the butterfly valve butterfly valve as compared with traditional high temperature, operation light, no friction hoist, the closure of the torque transmission mechanism with the increase to compensate for sealing to improve the a butterfly valve sealing performance and durability advantages.