Butterfly Valve with the Pneumatic Actuator
1. Resilient butterfly valve
2. High performance butterfly valve
3. Tri-centric butterfly valve
• Wafer Style Butterfly Valves
• Lug Style Butterfly Valves
Actuator: manual, gear box, pneumatic actuator, electric actuator, hydraulic actuator, electric-hydraulic actuator
Size: 2”~200”
Material: Cast steel, WCB, Carbon steel, SS304, SS316, and so on.
Butterfly Valve is a type of flow control device, typically used to regulate a fluid flowing through a section of pipe. The valve is similar in operation to a ball valve.
A flat circular plate is positioned in the center of the pipe. The plate of a butterfly valve has a rod through it connected to an actuator on the outside of the valve. Rotating the actuator turns the plate either parallel or perpendicular to the flow. Unlike a ball valve, the plate is always present within the flow, therefore a pressure drop is always induced in the flow regardless of valve position. A butterfly valve is from a family of valves called quarter-turn valves. The "butterfly" is a metal disc mounted on a rod. When the valve is closed, the disc is turned so that it completely blocks off the passageway. When the valve is fully open, the disc is rotated a quarter turn so that it allows an almost unrestricted passage of the process fluid. The butterfly valve may also be opened incrementally to regulate flow.
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