Schneider Electric VK-7211-203-3-9 Normally Open Angle Union Valve 1-1/4 Inch 8-13 PSI

The Schneider Electric (Barber Colman) VK-7211-203-3-9 is a pneumatic two-way globe valve assembly designed for precise flow control in commercial HVAC applications. This normally open (N/O) valve features an angle union body configuration with a 1-1/4 inch connection size, making it ideal for controlling hot water, chilled water, or low-pressure steam in heating and air conditioning systems.

Key Features:

• Normally open design provides fail-safe operation with continuous flow when air pressure is removed
• 8-13 PSI spring range pneumatic actuator for proportional or two-position control
• Angle union body configuration with 1-1/4 inch NPT connection
• Bronze body construction with brass trim for durability and corrosion resistance
• Equal percentage flow characteristics for precise modulating control
• Suitable for water temperatures from 20°F to 281°F (-7°C to 138°C) or steam up to 281°F (138°C)
• Spring return pneumatic actuator with NEMA 1 enclosure
• Part of the proven VB-7211 series valve platform

This valve assembly integrates a pneumatic actuator with the valve body, providing reliable linear motion control for HVAC systems. The 8-13 PSI spring range allows for flexible integration with building automation systems and pneumatic control panels. Ideal for heating coils, cooling coils, unit heaters, and other hydronic applications requiring modulating flow control.