Pneumatic Butterfly Control Valve

A pneumatic butterfly control valve is an automated, quarter-turn rotary valve assembly combining a compact butterfly body with a pneumatic actuator to deliver rapid-response fluid throttling and isolation. Regulated by compressed air via an electro-pneumatic positioner (accepting 4–20mA signals), the actuator rotates an internal disc 0 to 90 degrees to precisely modulate pipeline velocity and pressure. Featuring high flow capacity and minimal face-to-face dimensions, its concentric or high-performance eccentric disc design is ideal for large-diameter piping systems. Adhering to standards like API 609 and ASME B16.34, this lightweight, automated package is widely used in HVAC loops, water treatment plants, power generation cooling lines, and chemical processing networks. Partner directly with verified butterfly control valve manufacturers in China via our specialized B2B marketplace to eliminate middleman markups and secure factory-direct pricing on certified pneumatic butterfly control valves.