Butterfly valve 904L

leverelectricpneumatic

904L is a high-alloy austenitic stainless steel with low carbon content. Due to the combination of relatively high contents of chromium, nickel, molybdenum and copper, 904L has good resistance to severe corrosion, particularly in sulfuric and phosphoric conditions. AFC 904L valves serve many different applications in industries: • Chemical • Metullurgy • Desalination • Pulp & Paper Characteristics 1. AFC butterfly valve is characterized by simple structure, small volume and light weight, and it is easy to install and adjust. The valve is widely used in the medium and low pressure pipeline. 2. Good sealing performance，corrosion resistance， high pressure and temperature resistance, smart control and safe use. 3. The unique design of triple eccentricity makes no friction between the sealing surface and extend the valve service life. 4. The elastic seal is produced by the torque. 5. The wedge design makes the valve close more and more tightly by automatic sealing function, and there’s compensation and zero leakage between the sealing surfaces. Technical Specification Design Standard: API, ASME, EN, ISO, JIS, DIN, BS, GB Connection type: Flange, Wafer, Lug Pressure range: 150LB-300LB, 1.0MPa -4.0MPa Size range: NPS 3″ -48″ , DNS8O~DN1200 D rive: Lever, Gear, Electric, Pneumatic actuator Design Feature Double eccentric/ Triple eccentric Resilient seat/Metal to metal seat Zero leakage Blow-out proof stem : Fire safe, Anti-static design， ISO 5211 mounting pad