Description
The Schneider Electric (Barber Colman) VB-7211-0-4-7 is a precision-engineered two-way globe valve designed for demanding HVAC hydronic and commercial building automation applications. Featuring an equal percentage flow characteristic, this valve delivers accurate, repeatable modulating control across a wide range of system conditions — making it an ideal choice for heating and cooling coil applications where precise flow regulation is critical.
Key Features
- 1″ NPT x Union end connections for easy installation and serviceability
- 10 Cv flow coefficient for reliable, calibrated flow performance
- Two-way configuration for straightforward supply or return line integration
- Equal percentage flow characteristic for superior modulating control
- Bronze body construction for excellent corrosion resistance in hydronic systems
- Brass trim for long-lasting durability and leak-free seating
- Stem Up Open (N.O.) fail-safe position for system safety on actuator power loss
Construction & Design
The VB-7211-0-4-7 features a rugged bronze body paired with brass internal trim, providing outstanding resistance to the corrosive effects of treated hydronic water and glycol solutions. The union end connections allow the valve body to be removed from the piping without disturbing the system — simplifying maintenance, replacement, and actuator service.
Flow Characteristics
The equal percentage flow characteristic ensures that each increment of valve stem travel produces a proportional percentage change in flow rate. This behavior is ideally suited for coil control applications where the heat transfer relationship between flow and output is nonlinear, resulting in more stable and energy-efficient system control.
Actuator Compatibility
The VB-7211-0-4-7 valve body is designed to accept Schneider Electric (Barber Colman) compatible actuators, making it a seamless component within Schneider Electric’s broad portfolio of building automation and HVAC control products. Consult actuator specifications to confirm compatibility with your control signal and torque requirements.
Specifications
- SKU: VB-7211-0-4-7
- Brand: Schneider Electric (Barber Colman)
- Valve Type: Globe, Two-Way
- Connection Size: 1″
- End Connection: NPT x Union
- Flow Coefficient (Cv): 10
- Flow Characteristic: Equal Percentage
- Body Material: Bronze
- Trim Material: Brass
- Fail-Safe Position: Stem Up Open (Normally Open)
Applications
- Hydronic heating and cooling coil control
- Commercial HVAC air handling units (AHUs)
- Fan coil unit (FCU) water flow regulation
- Building automation and DDC control systems
- Variable flow hydronic distribution systems
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