D943H, D943W pneumatic three eccentric multi-level hard seal butterfly valve is widely used in metallurgy, electric power, petroleum, chemical industry, air, gas, combustible gas and water supply and drainage and other corrosive media pipelines.

1, the hard seal butterfly valve adopts the three bias hard seal structure, the seat and the butterfly plate almost no wear, with a tighter sealing function.

2. The sealing ring is made of stainless steel, which has the double advantages of metal hard seal and elastic seal. Regardless of low temperature and high temperature, it has excellent sealing performance, corrosion resistance, long service life and so on.

3. The sealing surface of butterfly plate is surfacing cobalt-based hard alloy, the sealing surface is resistant to wear and has long service life.

4, large size butterfly plate adopts quilted structure, high strength, large flow area, small flow resistance.

5, according to user needs, the hard seal butterfly valve of the valve supply network can be designed to have a two-way sealing function. When installed, it is not restricted by the flow direction of the medium, nor affected by the spatial location, and can be installed in any direction.

6, the drive device can be installed in multiple stations (rotation 90° or 180°), easy to use.