Schneider Electric VK4-7213-201-4-2 1/2" Pneumatic Globe Valve Assembly with Positioner

The Schneider Electric (Barber Colman) VK4-7213-201-4-2 is a pneumatic globe valve assembly designed for precise fluid control in HVAC and building automation systems. This two-way valve features a normally open configuration with a 1/2-inch NPT threaded connection and a 1.3 Cv flow coefficient, making it ideal for controlling hot or chilled water flow in heating and cooling applications.

Key Features:

• Two-way normally open (N/O) valve design ensures flow during control signal loss
• 1/2-inch NPT threaded connections for standard piping integration
• 1.3 Cv flow coefficient for moderate flow control applications
• 3-7 PSI pneumatic spring return actuator with 6 square inch diaphragm
• Integrated positioner (VK4 series) for enhanced control accuracy and response
• Bronze body construction with brass trim and soft seats for durability
• 1/8-inch FNPT air connections for pneumatic signal input
• 1/2-inch stroke length for precise modulation

This valve assembly is commonly used in fan coil units, air handlers, terminal reheat coils, and other HVAC applications requiring accurate water flow modulation. The integrated positioner provides improved control performance by ensuring the valve position accurately matches the pneumatic control signal throughout the full operating range.