Pneumatic Actuated Butterfly Valve
High Performance • Durable • Leak Proof
API 6DASME B16.34ISO 17292CE Certified
Pneumatic Actuated Butterfly Valve delivers fast automated flow control with smooth disc rotation
Technical Specifications
Key Features & Applications
Butterfly valves are commonly fitted with pneumatic actuators when a pipeline requires repeated operation or remote isolation. A Pneumatic Actuated Butterfly Valve uses compressed air to rotate the disc through approximately 90 degrees, opening or closing the flow passage without manual effort.
The actuator is generally a rack-and-pinion or scotch-yoke arrangement. Double-acting versions use compressed air for movement in both directions, while spring-return actuators can move the valve to a predetermined position when air pressure is lost.
A Pneumatic Actuated Butterfly Valve Suppliers in South Africa, African Valve manufactures for water transmission, chemical processing, power generation and oil and gas facilities across Africa. Wafer, lug and flanged bodies are available with concentric or offset-disc arrangements.
Technical Specifications
Parameter | Specification |
|---|---|
Valve Design | Concentric / Double Offset / Triple Offset |
Size Range | DN50–DN1200 |
Pressure Rating | PN10, PN16, PN25 / Class 150, 300 |
Body Material | Ductile Iron, ASTM A216 WCB, ASTM A351 CF8M |
Seat Material | EPDM, NBR, PTFE, Metal Seat |
Disc Material | Ductile Iron / Stainless Steel |
End Connection | Wafer / Lug / Flanged |
Actuator Action | Single Acting / Double Acting |
Air Supply Pressure | Typically 4–7 bar |
Air Quality | Clean, dry, filtered compressed air |
Air Inlet Connection | G1/4 / 1/4-inch NPT |
Operation Mode | On-Off / Modulating |
Control Input | 4–20 mA with Positioner |
Fail Position | Fail Open / Fail Closed / Fail Last |
Valve Design Standard | API 609 / EN 593, ISO 5211, API 598 / EN 12266-1 |
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