Quality is everything! US Walker (WORK) import clip-lined butterfly valve is suitable for newly developed special butterfly corrosive media, there are midline clip-on flange connection type. Lined butterfly valve applicable at -50 ℃ ~ 150 ℃ of various concentrations of aqua regia, hydrochloric acid, hydrofluoric acid and various organic acids, strong oxidants, FEP is also applicable to various concentrations of alkali organic solvents and corrosive gases, pipeline of the liquid medium used. Widely used in waterworks, power plants, chemical, food, paper, pharmaceutical and other industries. Valve fully open to fully closed is usually less than 90 °, butterfly and butterfly stroke itself is not self-locking capability, in order to position the disc to install the worm gear on the stem. Using worm reducer, not only can make the disc has a self-locking capability, so that the disc stopped at any position, but also to improve the operating performance of the valve. Industry-specific characteristics of butterfly valves to high temperature, higher pressure range, the valve nominal diameter large, carbon steel valve body, valve plate seal with a metal ring to replace the rubber ring. Its main features are: 1, sealing material aging, corrosion resistance and long service life. 2, the operation torque is small, easy to operate, energy smart. 3, the seal can be replaced, reliable sealing performance bi-directional sealing reach zero leakage. 4, design, reasonable, unique structure, light weight, open and close quickly. 5, can be installed in any position, and easy maintenance. 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!