Quality is everything! Multi-level long-life American butterfly tie Walker (WORK) import three eccentric hard sealing, energy-saving butterfly valve. This product consists of the main components of the valve body, disc, multi-level seat, stem, transmission and other components. Its three-dimensional structure using knitting heart design principle, the use of hard and soft seat seal compatible multi-level structure, process skills, and advanced technology. It is widely applied to the pipe metallurgy, electric power, petroleum, chemical, air, gas, flammable gas, and water supply and drainage and other corrosive media. Features: Because this product uses a three-dimensional eccentric butterfly design principles to make space trajectory to reach the ideal sealing surface, no mutual friction between the sealing surface, without interference, coupled with the sealing material is properly selected, allowing valve seal, corrosion resistance, heat resistance and wear resistance has been a reliable guarantee. 1, large-sized disc using lattice structure, high strength, flow area, flow resistance. 2, the drive can multi-position (rotated 90 ° or 180 °) to install, easy to use. 3, the valve adopts three eccentric seal structure, seat and disc almost no wear, with the view of the tight sealing function. 4, the disc plate sealing surface using cobalt-based alloy welding, sealing surface wear resistance and long service life. 5, 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. 6, 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. When ordering, please provide the following information:? A nominal diameter (mm), PN (MPa), and the operating temperature range of two straight before the pressure regulating valve, the valve pressure three media name and status at 4 single seat??? valve supply voltage (220V or 380V, the default 220V) 5 Input signal:??? 4-20mA, or 1-5V (default 4-20mA) 6 single-seat control valve body, the trim material requirements of seven other special requirements (such as corrosion resistance requirements, proof grade requirements, leakage class limits, etc.) United States Walker (WORK) Valve Chinese agents welcome you to inquire and order!