Johnson Controls VG1245AGH923BGA Valve

The Johnson Controls VG1245AGH923BGA is a heavy-duty 2-way normally open ball valve assembly designed for precision fluid control in commercial HVACR systems. Built with a 1/2" NPT connection, this unit features a rugged forged brass body and stainless steel trim, making it highly resistant to corrosion and ideal for handling both hot and chilled water, as well as 50% glycol solutions. The integrated spring return actuator ensures a reliable fail-safe position during power loss, while the thermal barrier protects the actuator components from extreme media temperatures, extending the service life of the on/off control valve. With a 4.7 Cv rating and equal percentage flow characteristics, this actuated ball valve provides superior rangeability and linear control for air handling units and terminal reheat coils. Operating on 24Vac/Vdc, it is a versatile solution for contractors looking for Johnson Controls VG1000 series reliability in high-performance piping applications.

Key Benefits

• Fail-Safe Operation: The spring return mechanism automatically returns the valve to a normally open position during power interruptions.
• Maximum Durability: Features a stainless steel ball and stem to prevent premature wear and mineral buildup in hard water conditions.
• Thermal Protection: An integrated thermal barrier reduces heat transfer from the piping to the 24V electric actuator.
• High Pressure Rating: Rated for a static pressure of 580 psig, ensuring stability in high-rise and large-scale commercial loops.
• Precision Control: Equal percentage flow inserts provide accurate modulation across various load conditions.

Common Questions

Is the VG1245AGH923BGA compatible with steam systems?
Yes, because this model features stainless steel trim, it is rated for low-pressure steam applications up to 15 psig.

What is the purpose of the thermal barrier on this assembly?
The barrier insulates the actuator from the valve body, allowing the assembly to handle media temperatures up to 250°F without damaging the electronics.

Can this valve be used for both chilled and hot water?
Yes, the VG1000 series ball valve is specifically engineered for universal service in both heating and cooling hydronic circuits.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.