Johnson Controls VG7443GT+72CHGA Valve Assembly

The VG7443GT+72CHGA is a heavy-duty Johnson Controls globe valve assembly engineered for precise control of hot water or chilled water in demanding HVAC systems. Featuring a 1/2-inch NPT connection and a 4.6 Cv rating, this 2-way normally closed valve utilizes an equal percentage flow characteristic to ensure stable temperature modulation under varying load conditions. The cast bronze body and 316 stainless steel trim provide superior corrosion resistance and longevity when compared to standard brass internals. Driven by the VA7810-HGX-2 actuator, this assembly supports field-selectable control signals, including 0(2)-10 VDC, 0(4)-20 mA, floating, or two-position operation. The integrated spring return actuator ensures a fail-safe position upon loss of 24VAC power, protecting downstream equipment. This unit serves as the direct VG7243GT+946HGA replacement, offering a modern 100 lb mechanical shutoff force for reliable close-off in high-differential pressure applications.

• Universal Control Compatibility: Field-selectable input signals allow integration with almost any building automation system using proportional 0-10VDC control or 4-20mA loops.
• Superior Metallurgy: The stainless steel valve plug and stem withstand aggressive water chemistry better than standard hardware.
• Fail-Safe Reliability: Mechanical spring return functionality ensures the valve returns to the closed position during power interruptions.
• Precision Throttling: Designed for modulating chilled water systems, the equal percentage curve prevents hunting and stabilizes room discharge temperatures.

Common Questions

What is the difference between this model and the older VG7200 series?
The VG7443GT+72CHGA provides an upgraded actuator housing and improved torque ratings over the discontinued VG7243GT+946HGA, handling higher close-off pressures while maintaining the same center-to-face dimensions for drop-in replacement.

Can this valve be field-configured for normally open operation?
This specific assembly is factory-configured as normally closed. For normally open requirements, the actuator orientation or the valve body selection must be adjusted to meet the fail-safe sequence of the specific air handling unit or terminal box.

What power source is required for the VA7810 actuator?
This 24VAC globe valve assembly requires a Class 2 transformer. Ensure the VA rating of your transformer accounts for the peak power draw during the spring-return stroke.

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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.