Description
The Johnson Controls VG7842RT+3008D is a fully assembled 3-way mixing valve engineered for precise hydronic flow control in commercial HVAC and building automation systems. Combining a cast bronze valve body with brass trim and a spring return exposed pneumatic actuator, this assembly delivers reliable, repeatable performance in demanding heating and cooling applications.
Valve Body Features
- Configuration: 3-way mixing valve for blending or diverting hydronic flow
- Connection size: 1-1/2″ NPT threaded ports
- Flow coefficient: 28.9 Cv for accurate flow capacity sizing
- Flow characteristic: Linear flow for proportional control response
- Body material: Cast bronze for corrosion resistance and long service life
- Trim material: Brass for durability and compatibility with hydronic media
Pneumatic Actuator Features
- Actuator type: Spring return exposed pneumatic actuator (Model 3008D)
- Spring range: 4–8 PSI for precise pneumatic control signal response
- Action: Spring return provides fail-safe positioning on loss of air signal
- Exposed actuator design allows easy field inspection and maintenance
Application Highlights
- Ideal for commercial hydronic heating and cooling systems
- Compatible with pneumatic building automation and DDC control systems
- Suitable for mixing, diverting, or bypass applications in chilled and hot water systems
- Factory-assembled valve and actuator combination ensures proper sizing and compatibility
Why Choose the VG7842RT+3008D
The VG7842RT+3008D arrives as a complete, factory-matched assembly, eliminating field assembly errors and reducing installation time. The cast bronze body and brass trim construction ensure long-term reliability in hydronic systems, while the 4–8 PSI spring return actuator provides dependable fail-safe operation. Whether retrofitting an existing pneumatic system or specifying new construction, this Johnson Controls assembly delivers the flow control precision and build quality that commercial HVAC professionals demand.
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