Quality is everything! US Walker (WORK) import regulated PTFE sealing butterfly valve is suitable for a variety of different types of industrial pipeline liquids and gases (including steam) transport, especially those with severe corrosive media occasions, such as: hydrofluoric acid, phosphoric acid, alkali, aqua regia and other highly corrosive media. Technical parameters: Drive mode: Manual Connection: Flanged Body material: carbon steel sealing surface material: fluorine plastic structure: a center vertical plate Suitable medium: water, oil, steam, etc. Diameter: DN40 ~ 150mm Pressure: 1.0 ~ 4.0MPa Temperature: -29 ~ 150 ℃ butterfly effect: the butterfly valve is opened and closed by a circular disc with stem pieces and rotate to open, close and adjust a fluid passage valve Applicable medium: air, water, sewage, steam gas, oil, and other corrosive media butterfly applications: chemical, petrochemical, oil, paper, mining, electricity, gas, food, pharmaceutical, water supply and drainage, municipal, mechanical equipment, electronics industry, urban construction and other fields. 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!