Butterfly Valve

Butterfly Valve is used to control and regulate the flow of Liquid or gas when installed in a pipe circuit. Butterfly valves are typically utilized in large line sizes in chemical services, waste and water treatment applications and fire protection systems. Due to the valve design, incorporating a small face-to-face dimension and lower weight than most valve types, the butterfly valve is an economical choice for larger line sizes (i.e. 8" and above). Additional advantages of the butterfly valve are standard face to face dimensions, relatively high coefficient of flow (CV) and their availability in chemically resistant materials. The butterfly valve complies with ASME face-to-face dimensions and pressure ratings. This enables the valve to be easily retrofitted in line regardless of the manufacturer. In addition, the small face-to-face dimension facilitates piping design. The ASME pressure classes adhered to 150, 300 and 600# allowing a maximum pressure of 1500 PSI. The butterfly valve is considered a high recovery valve, since only the disc obstructs the valve flow path. The CV is relatively high; the pressure drop across the valve is relatively low. Hence the pump size is minimized and system wear reduced compared to that of low recovery valves (i.e. globe valves). Sizes available : 50mm to 1000mm Range : The valves pressure rating ranges from 150# to 300# with Screwed end, Flanged end or Butt weld end. They are also available with Lever operation, Gear operator, electrical actuator and Pneumatic actuator. Material used : Cast Iron, Carbon Steel, Stainless Steel, Duplex, Super Duplex, Monel, Hast alloy, etc