Schneider Electric Pneumatic Globe Valve Assembly With Positioner

The Schneider Electric (Barber Colman) pneumatic globe valve assembly with positioner is a factory-assembled control valve for HVAC systems. Each assembly pairs a globe valve body with a pneumatic actuator and a positive positioner. Also called a VK4 pneumatic valve assembly or pneumatic control valve with positive positioner, it is used for modulating control of fluid flow in heating and cooling systems.

Key Features:

• Complete assembly: valve body, linkage, pneumatic actuator and positive positioner are matched by Schneider Electric for each model.
• Globe valve design: suited to accurate throttling and flow control in building HVAC applications.
• Positive positioner: keeps valve stem position accurate against the pneumatic control signal, giving more precise and repeatable modulation.
• Pneumatic actuation: spring-return actuator with a linear stem movement and an air-line connection.
• Threaded NPT piping connections for straightforward installation in HVAC piping.
• Trusted brand: Barber Colman pneumatic controls are now part of the Schneider Electric building controls range.

Models in this line differ in valve body size, flow coefficient, close-off pressure and actuator spring range. Compare the specifications of the model you select to confirm it matches your application. The assemblies are intended for HVAC hot water, chilled water, glycol and steam control, and are a dependable replacement or upgrade for pneumatic control loops.