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
Main Hand Lever :Aluminum Alloy,  Plastic Auxiliary Hand lever : Aluminum Alloy,
Plastic Spring: Common Spring Stainless Steel Spring
Technical Specification
-Nominal diameter:50~200(2"~ 8")          

 -Nominalpressure:1.0/1.6/2.0Mpa                                                -Applicable Temperature:10^oC~150^oC
-Drive modeAluminum alloy hand lever.
-Applicable medium:freshwater sea water food natural gas alcoholic salt acid alkali
oil steam air etc.