Description
The Johnson Controls VG1245AD+9T4GGA is a fully actuated two-way ball valve assembly engineered for precise flow control in commercial HVAC and building automation applications. Combining a forged brass valve body with stainless steel trim and a non-spring-return electric actuator, this assembly delivers reliable equal percentage flow characteristics and long-term durability in demanding hydronic and water systems.
Valve Body Features
- Connection Type: 1/2″ NPT threaded
- Flow Characteristic: Two-way equal percentage
- Flow Coefficient: 1.2 Cv
- Body Material: Forged brass for corrosion resistance and pressure integrity
- Trim Material: Stainless steel for extended service life
Actuator Features
- Control Voltage: 24Vac
- Control Signal: 0–10Vdc and 2–10Vdc proportional input
- Current Signal: 4–20mA (with included 500-ohm resistor)
- Return Type: Non-spring return
- Wiring: Screw terminal connections for fast, secure field installation
Application Highlights
- Ideal for chilled water, hot water, and condenser water systems
- Compatible with DDC and BAS controllers accepting 0–10Vdc, 2–10Vdc, or 4–20mA signals
- Equal percentage flow characteristic provides stable control across a wide load range
- Factory-assembled valve and actuator combination reduces installation time and ensures proper component matching
- Non-spring-return design retains last position on power loss
Why Choose the Johnson Controls VG1245AD+9T4GGA?
This factory-matched valve and actuator assembly eliminates the guesswork of field pairing, ensuring optimal performance from day one. The forged brass body and stainless steel trim provide superior resistance to corrosion and wear, while the versatile multi-signal actuator integrates seamlessly with virtually any modern building automation system. Screw terminal wiring simplifies commissioning, and the 4–20mA capability (via the included 500-ohm resistor) adds flexibility for current-loop control architectures.
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