Flange butterfly valve D943H features of this structure with three eccentric seal, seat and disc almost no wear, with more and more tightly sealing function concept. Ring made of stainless steel production, with a metal seal and elastic sealing of the dual advantages, both in the case of low and high temperatures, all with excellent sealing performance, corrosion resistance and long service life. Dish plate sealing surface using cobalt-based alloy welding, sealing surface wear resistance and long service life. Large-sized disc using lattice structure, high strength, flow area, flow resistance. The valve has a two-way sealing function, the installation of unrestricted flow of media, is not affected by spatial location can be installed in any direction. Drive can multi-position (rotated 90 ° or 180 °) to install, easy to use. De Valve Co., Ltd., Henan like professional valve manufacturer, the products are exported to Southeast Asia, Central America, Middle East and other 64 countries, product quality assurance, safety and durability are our trusted valve manufacturers. www.zggnfm.com www.gnzhihuifa.com