Description
The Schneider Electric (Barber Colman) VK-7211-201-3-6 is a fully assembled, two-way normally open control valve designed for precise flow regulation in commercial HVAC hydronic and pneumatic control systems. Combining a durable bronze body globe valve with a spring return pneumatic actuator, this assembly delivers reliable, fail-safe performance in heating and cooling applications.
Valve Specifications
- Configuration: 2-Way, Normally Open
- Pipe Size: 3/4 inch
- End Connection: Union Angle
- Flow Characteristic: Equal Percentage
- Flow Coefficient (Cv): 8.5
- Body Material: Bronze
- Trim Material: Brass
- Valve Type: Globe Valve
Actuator Specifications
- Actuator Type: Spring Return Pneumatic
- Spring Range: 3–7 PSI
- Action: Spring return provides fail-safe normally open position on loss of air signal
Key Features & Benefits
- Pre-assembled valve and actuator for fast, straightforward installation
- Equal percentage flow characteristic ensures precise, stable modulation across the full stroke range
- Normally open fail-safe design maintains flow on loss of pneumatic signal — ideal for heating applications
- Union angle body style simplifies field installation and future maintenance or replacement
- Bronze body with brass trim provides excellent corrosion resistance for hydronic water service
- Compatible with standard pneumatic control systems operating in the 3–7 PSI signal range
- Barber Colman heritage ensures proven reliability in commercial building automation environments
Typical Applications
- Commercial HVAC hydronic heating and cooling coil control
- Fan coil unit and air handling unit water valve service
- Building automation pneumatic control systems
- Hot water and chilled water distribution systems
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