Tru-Flo UT21-SR4-F07 Pneumatic Valve Actuator

Tru-Flo UT21-SR4-F07 is a pneumatic valve actuator designed for quarter-turn valve applications requiring reliable spring return functionality. It operates in a bi-directional mode and returns to a fail-safe position (typically closed) upon loss of air supply. Model: UT21-SR4-F07 Manufacturer: Tru-Flo Actuation Type: Pneumatic Design: Spring Return (Fail-Safe) Rotation: 90° (Quarter-Turn) Direction: Counter-Clockwise (CCW) Spring Return Operating Pressure: Up to 200 PSI Motion: Bi-Directional Mounting Interface: ISO F07 flange pattern Typical Use: Ball valves, butterfly valves, plug valves Control: On/Off actuation (via solenoid valve or manual pilot) Material: Cast aluminum body (anodized or epoxy-coated depending on variant) Application: Process control, water treatment, HVAC, chemical handling This actuator is ideal for applications that require a default fail-safe position (e.g., return to closed) in case of air supply failure, offering safe and repeatable quarter-turn valve operation.