AW pneumatic flange hard seal butterfly valve adopts precise elastic sealing ring and triple eccentric multi-layer metal hard sealing structure, which is widely used in industrial pipelines such as metallurgy, electric power, petrochemical, water supply and drainage, municipal construction, etc. The temperature of medium is ≤ 425 C, which is used for regulating flow and conveying fluid. The valve adopts triple eccentric structure, and the sealing surfaces of valve seat and disc plate are made of stainless steel with different hardness, which has good corrosion resistance and long service life. The valve adopts bidirectional sealing function, and the product meets the pressure test standard of GB/T 13927-92.

Characteristics of AW pneumatic flange hard seal butterfly valve;

1. This valve adopts triple eccentric sealing structure, and the valve seat and butterfly plate have almost no wear and tear, which has an increasingly tight sealing function.

2. The sealing ring is made of stainless steel, which has the dual advantages of metal hard seal and elastic seal. It has excellent sealing performance, corrosion resistance and long service life at low temperature and high temperature.

3. The sealing surface of the disc is made of surfacing cobalt-based hard gold, which is wear-resistant and has long service life.

4. The large butterfly plate adopts truss structure, which has high strength, large flow area and small flow resistance.

5. This valve has the function of two-way sealing, and can be installed in any direction, which is not limited by the flow direction of the medium and is not affected by the spatial position.

6. The driving device can be installed in multiple stations (rotating by 90 or180), which is convenient for users.