The flanged butterfly valve has a vertical plate structure. The valve stem is an integral metal hard seal. The sealing ring of the valve is a composite structure of flexible graphite plate and stainless steel plate. It is installed on the valve body, and the sealing surface of the butterfly plate is welded with stainless steel. The sealing ring of flange eccentric butterfly valve is made of rubber and is installed on the butterfly plate.
The flange butterfly valve 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, regardless of low temperature and high temperature. The disc sealing surface Using surfacing cobalt-based hard alloy, the sealing surface is wear-resistant and has a long service life.
