The butterfly valve is operated by the disc rotating form 0^o to 90^o, can be applied to cut off or regulate the flow of medium. The valve can be actuator by operating lever, handle wheel electric actuator or pneumatic actuator. Widely used for potable water supply and distribution,waste water treatment, electric power plant, gas supply, warm-air system, smelting plant, ship ,building, textile, petroleum, chemistry, or other light industries.
Features:
Low weight    Compact structure   Low flow resistance    Small operation torque   

Easy to install and maintain     Flow pattern tend to be straight   Open-close 90^omore smoothly
Mail part & material
Gear box: Carbon Steel   Lever: Gray Cast Iron Steel Plate   Worm Gear: Ductile Iron
Gear Stem: Carbon Steel  Gear Train: Carbon Steel  Label: Steel Plate
Technical Specification
-Nominal diameter:50~250(2"~10")
-Nominal pressure:1.0/1.6/2.0Mpa
-Applicable Temperature:-10^oC~150^oC
-Drive mode:Aluminum worm wheel.