Schneider Electric (Barber Colman) MK-4801 Valve Actuator

Schneider Electric (Barber Colman) MK-4801 Pneumatic Valve Actuator, 3 to 8 Psi Spring Range, Nema Type 1, 30 Psig Maximum Air Pressure, Spring Retracts Actuator Shaft and Raises Valve Stem on loss of Air Pressure, Used with 1 1/2" to 2" VB-9xxx Series