Schneider Electric VK4-7213-301-4-9 Pneumatic Valve Actuator 1-1/4" Normally Open 3-6 PSI

The Schneider Electric (Barber Colman) VK4-7213-301-4-9 is a pneumatic valve actuator designed for HVAC control applications. This normally open (N/O) actuator features a 1-1/4 inch connection size and operates within a 3-6 PSI control pressure range, providing reliable modulating control for heating, cooling, and ventilation systems.

Key Features:

• 1-1/4 inch valve connection for medium-sized control valves
• Normally open (N/O) spring return configuration for fail-safe operation
• 3-6 PSI operating pressure range for precise modulating control
• Includes positive positioning feedback (W/POS) for accurate valve stroke control
• Durable construction suitable for commercial HVAC applications
• Direct mount design for simplified installation

This VK4 series actuator is commonly used in commercial building automation systems to control water flow in heating and cooling coils, mixing valves, and other hydronic applications. The positive positioning feature ensures accurate valve control and allows for integration with building management systems that require feedback signals.