Schneider Electric VK-7211-203-4-5 Pneumatic Valve Actuator Normally Open 8-13 PSI 3/4 Inch

The Schneider Electric (Barber Colman) VK-7211-203-4-5 is a spring return pneumatic valve actuator designed for commercial HVAC control applications. This normally open actuator operates on an 8-13 PSI spring range, automatically returning the valve to the open position when air pressure is released.

Key Features:

• Normally open (N/O) operation for fail-safe valve control
• 8-13 PSI operating pressure range for precise modulation
• 3/4 inch union connection for easy installation and service
• Spring return mechanism ensures reliable failsafe operation
• Durable construction suitable for commercial building automation systems
• Compatible with standard pneumatic control systems

This actuator is ideal for controlling hot water, chilled water, and steam valves in commercial heating, ventilation, and air conditioning systems. The union connection allows for quick valve mounting and removal without disturbing piping connections. The normally open configuration provides safety by ensuring flow in the event of control air pressure loss.