Quality is everything! US Walker (WORK) imported PTFE sealing double eccentric butterfly valve installed in the petroleum, chemical, food, pharmaceutical, textile, paper, water, electricity, shipping, water supply and drainage, smelting and other systems, all the gas is corrosive and non-corrosive on liquid, semi-fluid and solid powder pipelines and containers to use as a regulator and the closure can be installed in any position. Features: 1, linear flow characteristics tend to regulate the performance of good 2, choose different materials, applicable to a variety of media 3, simple and compact structure, small, lightweight, easy installation and maintenance, and can be installed in any position 4 90 degree rotation, open and close rapidly when ordering, please provide the following information:??? a nominal diameter (mm), nominal pressure (MPa), operating temperature range and two straight before the pressure regulating valve, the valve pressure 3 Media ? the name and status at 4 single-seat control 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, valve? 7 pieces of material requirements? 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!