How To Identify The Quality Of Stainless Steel Ball Valve
Stainless Ball Valve is an eccentric metal seal structure, the sealing method is metal to metal seal, interchangeable metal seal ring to metal seal, stainless steel plate and graphite composite plate seal ring to metal seal.
In addition to electric, the driving methods of hard-sealed butterfly valves include: manual, worm gear drive, pneumatic, etc. This valve is generally installed horizontally.
The butterfly plate of the hard-sealed ball valve is installed in the diameter direction of the pipeline. In the cylindrical channel of the hard-sealed ball valve body, the disc-shaped butterfly plate rotates around the axis, and the rotation angle is between 0° and 90°. When it rotates to 90°, the valve is fully open.
Features of the new high-life stainless steel butterfly valve and problems in the use of butterfly valves Now, hard-sealed ball valves and hard-sealed butterfly valves, as a component used to realize the on-off and flow control of pipeline systems, have been widely used in many fields such as petroleum, chemical industry, metallurgy, hydropower, etc.
In butterfly valve technology, its sealing method mostly adopts a sealing structure, and the sealing material is rubber, polytetrafluoroethylene, etc. Due to the constraints of structural characteristics, it is not suitable for industries such as high temperature resistance, high pressure resistance, corrosion resistance, and wear resistance.
An advanced butterfly valve is a three-eccentric metal hard seal butterfly valve. The valve body and valve seat are connected components, and the valve seat sealing surface layer is welded with heat-resistant and corrosion-resistant alloy materials.
The multi-layer soft stacking seal ring is fixed on the valve plate. Compared with the traditional butterfly valve, this butterfly valve has the advantages of high temperature resistance, easy operation, no friction when opening and closing, and the seal is compensated as the torque of the transmission organization increases when closing, which improves the sealing performance of the butterfly valve and extends its service life.
