The rubber elastomer butterfly in continuous use in electric flange steel gate valve, will produce tear, abrasion, aging, wear polymer composites repair valve hole even wear off phenomenon. The conventional thermal curing process is difficult to adapt to the needs of the repair site, to be used when repairing specialized equipment, consume large amounts of heat and power valve, time-consuming and laborious. Today the gradual use of polymer composites alternative to traditional methods, which is the most widely blessing World Blue technology system. Its products have excellent adhesion and excellent abrasion resistance, tear resistance, to ensure that meet or exceed the restored parts of the life cycle of a new, greatly reducing downtime. 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, oblique cone surface in the valve plate welding 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 medium pressure stainless steel flange valve, the valve sealing problems in the course of a two-way exchange of media delivery exist. Use of soft T-side multilayer film composed of stainless steel flange ring soft seal valve, has the dual advantages of a metal seal and soft seal, both at low and high temperatures, all with zero leakage sealing performance. Soft sealing flange valve, Gaoyao valve, the valve is provided by the Hong Kong Ming Ming Port Valve Co., Ltd., Dongguan. Port Valve Co., Ltd., Dongguan Ming (www.gdmgfm.com) strong, credible, butterfly and other industries in Dongguan, Guangdong has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the next port of the valve and you hand into the brilliant, for a better future!