Quality is everything! US Walker (WORK) imported soft sealing flange double eccentric butterfly valve for temperature ≤120 ℃, nominal ≤1.6MPa food, pharmaceutical, chemical, petroleum, power, textile, paper and other water supply and drainage, gas pipelines for regulation of traffic and the closure of the medium. Features: a double eccentric disc, open and close rapidly, easy operation and effort. 2 butterfly design novel structure, small overall size and light weight. 3 double eccentric disc, so no seal between the disc and the sliding friction, wear-resistant sealing surface long life, reliable sealing, easy to adjust. How it works: rotary valve hand wheel, worm drive through, drive stem disc rotate freely within the range of 90 degrees, so that the butterfly valve is turned on or off, connect or disconnect the purpose of the media. 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!