Barber-Colman EA57-2-3706 Electric Valve Actuator

Barber-Colman EA57-2-3706 Electric Valve Actuator is a mid-torque, non-spring-return device designed for proportional positioning of valves and dampers in industrial burner and HVAC systems. It operates on 120 V AC at 60 Hz, drawing about 0.65 A with a 40 W input, and mates to a 1/2" NPT valve via the 2-3706 connection, with a typical full-stroke time around 40 seconds and about 200 lb-in of torque. Designed as a direct retrofit for Barber-Colman, Eurotherm, and Schneider Electric units, the EA57 family provides dependable positioning without a return spring and is commonly used for burner control, fuel-air ratio systems, dampers, and other combustion-control applications in asphalt plants and similar industrial environments. The EA57-2-3706 pairing specifies a valve body sized for 1/2" NPT interfaces, enabling straightforward replacement of legacy actuators with verified compatibility and streamlined integration into existing control circuits.