1, effective flow channel full seat larger, less fluid resistance. 2, the valve opening and closing torque smaller brands, due to the shaft by the role of the media on both sides of the disc is basically the same, but opposite direction produces a torque valve company, which open and close more effort. 3, sealing surface material commonly used rubber, plastic, so good low pressure sealing performance. 4, easy to install. 5, flexible operation and effort, manual, electric, pneumatic, hydraulic way. High-performance three eccentric hard sealing butterfly valve, characterized in that: the valve seat ring from soft T-ring seals on both sides of a multi-layer stainless steel sheet. The sealing surface of the valve plate and seat for the oblique cone structure valves, valve plate oblique cone surfacing temperature, corrosion resistant alloy materials; fixed regulation of the spring between the plate and the plate ring bolt assembly structure in regulation. This structure effectively compensate for tolerance between the sleeve and the valve stem and the elastic deformation under media pressure, the valve sealing problems in the course of a two-way exchange of media delivery exist. Use of soft T-seals on both sides of the multilayer film composed of stainless steel, has the dual advantages of a metal seal and soft seal, both at low and high temperatures, all with zero leakage sealing performance. Valve brand, Ming Hong Kong valve (certified), Huizhou, Dongguan Ming valve provided by the Hong Kong Science and Technology Co., Ltd. valve. Port Valve Co., Ltd., Dongguan Ming (www.gdmgfm.com) is Dongguan, butterfly leaders, over the years, the company implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In the next port of the valve leading the staff warmly welcome all inquiries negotiations to create the next port of the valve a better future.