Schneider Electric (Barber Colman) MK-4801 Damper Valve Actuator 11 sq. in 3-8 PSIG

The Schneider Electric (Barber Colman) MK-4801 pneumatic damper valve actuator is designed for accurate control of HVAC systems. It has a fail-safe spring return mechanism and the actuator spring is available in a range of 3 to 8 PSIG which makes it possible to position the valve reliably in case of power failure. The actuator has an 11 sq in diaphragm and 1/8” FNPT air connections and can be used to control dampers and valves in air handling units, VAV systems and other HVAC equipment.