Schneider Electric VK4-7213-301-4-6 3/4" Normally Open Spring Return Valve Actuator Assembly

The Schneider Electric (Barber Colman) VK4-7213-301-4-6 is a 3/4-inch normally open (N/O) spring return valve actuator assembly designed for precise control in commercial HVAC systems. This assembly combines a pneumatic actuator with a 3/4-inch valve body rated for 7.5 CV (valve coefficient) flow capacity.

Key Specifications:

• 3/4-inch valve connection size for standard piping integration
• Normally open configuration - valve closes upon air signal application
• Spring return operation for fail-safe positioning during power loss
• 3-6 PSI operating pressure range for pneumatic control
• 7.5 CV flow coefficient for reliable water and glycol solution flow
• Integrated positioner feedback for accurate valve positioning

This valve actuator assembly is ideal for hot water, chilled water, and glycol solution applications in commercial heating and cooling systems. The normally open fail-safe design ensures system safety during power interruptions, while the integrated positioner provides precise modulating control for energy-efficient temperature regulation.