Johnson Controls VG7251ET+3008D 1/2″ Union Globe Valve/Exposed Actuator 1.8 Cv 08-Apr PSI Pneumatic

Johnson Controls VG7251ET+3008D Valve & Exposed Actuator Assembly, Normally Open Spring Return, Brass Trim.
Applications Heating, Ventilating, and Air Conditioning (HVAC) systems.These Pneumatic.
Valve Actuators are designed to accurately position steam or water valve modulating plugs in response to a pneumatic signal from a controller.
No Positioner Option Available
Features
molded synthetic rubber rolling diaphragm design. This molded diaphragm provides a constant effective area throughout the actuator stroke.
All parts are protected by a sturdy die-cast aluminum housing.
integral stroke position indicator provides visual reference to valve position.