Three eccentric hard seal butterfly valve clamped and flange type, sealing form more sealing structure, sealing material for rubber, PTFE and so on. The operation mode is manual, worm gear, electric and other operation modes. Three eccentric hard seal butterfly valve due to the limitation of structural characteristics, not adapt to high temperature, high pressure and corrosion resistance, anti-wear and other industries. It is suitable for pipeline system through and through and pipeline flow control, widely used in petroleum, chemical industry, metallurgy, hydropower and many other fields.

The sealing ring is made of stainless steel, with the double advantages of metal hard seal and elastic seal, no matter in the case of low temperature and high temperature, have excellent sealing performance, corrosion resistance, long service life, etc. This valve adopts the three eccentric sealing structure, the valve seat and the butterfly plate is almost no abrasion, with the more tightly the more tightly the sealing function.

The sealing surface of the disc plate is made of surfacing cobalt-based hard alloy, the sealing surface is wear-resistant and has a long service life, the valve has a bidirectional sealing function, the installation is not subject to the restriction of the medium flow direction, nor is it subject to the influence of the spatial location, and it can be installed in any direction. 5, the large-size butterfly plate adopts a quilted frame structure with high strength, large overflow area, small flow resistance, and the driver can be installed in multiple positions (rotated by 90 ° or 180 °) to facilitate the user to use it. Easy for users to use.