Hard sealing flange butterfly valve

Code for design of eccentric hard sealing flange butterfly valve: GB / T 12238, the overall material is nickel200, turbine driven, flange connected, three eccentric, hard sealing surface, PN10 pressure, DN100 (national standard), which is mainly used for high-temperature concentrated alkali, sulfuric acid, Qing fluoric acid, hydrochloric acid, phosphoric acid, etc. whether N6 pure nickel can resist the corrosion of working environment media depends on the "passive oxidation film" on its surface Chemical stability in corrosive medium.

Introduction to three eccentric hard seal butterfly valve:

The butterfly plate of the three eccentric hard seal butterfly valve is installed in the diameter direction of the pipeline. In the cylindrical channel of the butterfly valve body, the disc-shaped butterfly plate rotates around the axis with a rotation angle of 0 ° ~ 90 °. When it rotates to 90 °, the valve is fully open. The characteristics of the new high life stainless steel butterfly valve and the problems existing in the use of the butterfly valve.

Three eccentric hard seal butterfly valve is widely used in metallurgical, electric power, petrochemical, water supply and drainage, municipal construction and other industrial pipelines with medium temperature ≤ 425 ℃ for regulating flow and cutting off fluid.