Pneumatic Double Flanged Butterfly Valve

ALIS Valves offers Pneumatic Double Flanged Butterfly Valves designed for automated flow isolation and control in industrial piping systems. These valves feature a circular disc mounted on a rotating shaft that turns approximately 90 degrees to open or close the flow passage. The double-flanged body has flanges at both ends, allowing secure bolted installation between compatible pipeline connections and providing a robust mounting arrangement for industrial service. A pneumatic actuator operates the disc using compressed air, enabling remote operation and integration with automated control panels and process control systems. Depending on the application, the valve can be supplied with ductile iron, cast iron, carbon steel or stainless steel body options, along with suitable disc, seat and sealing materials to meet specified pressure, temperature and media requirements.

Pneumatic Double Flanged Butterfly Valves are used in water treatment plants, wastewater systems, power generation, chemical processing, HVAC installations, industrial utilities and other applications requiring automated flow control. Depending on the selected construction and sealing arrangement, they can handle compatible liquids, gases and selected process media within their rated operating limits. Important selection factors include valve size, flange drilling standard, pressure rating, operating temperature, media compatibility, disc and seat materials, and the required flow capacity. Buyers should also consider the actuator’s torque rating, compressed air supply pressure, operating frequency, control arrangement and required fail-safe position. For applications requiring tight shut-off, the seat design and applicable leakage rating should be verified against the process requirements. Selecting the appropriate pneumatic double flanged butterfly valve helps provide dependable automated operation, secure pipeline installation and efficient flow isolation in compatible industrial systems.