The Johnson Controls VB-4322-9 is a 2.5-inch, 3-way mixing valve equipped with an electronic actuator, designed to regulate the flow of hot or cold water through hydronic coils or heat exchangers. The valve enables precise control of water mixing to maintain desired temperatures in HVAC and process systems. With flanged connections and a pressure rating of up to 175 psig at 150°F, it is well-suited for medium-to-large commercial or industrial installations.
Technical Specifications
- Model: VB-4322-9
- Valve Type: 3-way mixing
- Connection Type: Flanged
- Valve Size: 2.5 inches
- Control Type: Modulating with electronic actuator
- Max Operating Pressure: 175 psig
- Max Operating Temperature: 150°F
- Body Material: Typically bronze or cast iron (confirm per model)
- Application: Hot or chilled water in closed-loop systems
Key Features
- Designed for precise mixing or diverting of hot and cold water
- Integrated electronic actuator enables reliable modulating control
- Flanged ends support secure installation in larger pipe systems
- Handles water pressure up to 175 psig at standard system temperatures
- Ideal for regulating flow through HVAC coils or water-to-air exchangers
Compatible Components & Accessories
- Johnson Controls electronic controllers and sensors
- Building automation systems with analog control outputs
- Temperature sensors and loop controllers
- Piping systems with standard 2.5-inch flanged fittings
Industry Applications
- Commercial HVAC systems
- Central plant hydronic loops
- Air handling unit coil regulation
- Heat exchanger water control
- Process temperature management in industrial systems
Installation & Maintenance Notes
- Install valve in correct orientation for mixing service as indicated on body
- Ensure actuator wiring and signal compatibility with control system
- Use appropriate flange gaskets and torque values during assembly
- Periodically inspect for internal wear, leakage, or actuator alignment
- Flush piping system prior to operation to prevent debris from affecting valve performance
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