Three eccentric butt clip hard seal butterfly valve closes, the sealing ratio pressure between the two sealing surfaces of the sealing vice not only eliminates the conventional eccentric butterfly valve sealing ratio pressure reduction and disappearance, but also change the external driving torque to realize the sealing ratio pressure of its arbitrary adjustment, so it is widely used in medium temperature ≤ 425 ° C in the treatment of gold, electric power, petrochemical industry, as well as drainage and municipal construction of the industrial pipeline.

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

Butterfly plate sealing surface is made of surfacing cobalt-based hard alloy, the sealing surface is wear-resistant and has a long service life. The large-size butterfly plate adopts quilted frame structure, which is of high strength, with a large over-flow area and small flow resistance, and the clamped hard seal butterfly valve has the function of bi-directional sealing, which is not subject to the restriction of the flow direction of media or the influence of the spatial location during installation, and it can be installed in any direction, and the drive can be installed in multiple positions (rotated at 90° or 180°), which is convenient for users to use. Convenient for users to use.