Johnson Controls VG7443LT+72CHGA Valve Assembly

The Johnson Controls VG7443LT+72CHGA is a heavy-duty 2-way normally closed valve assembly designed for precision control of hot water, chilled water, and 38 psig saturated steam. Built with a rugged 3/4 inch NPT cast bronze body and stainless steel trim, this globe valve provides a 7.3 Cv flow coefficient with an equal percentage flow characteristic for superior modulating control. The unit is paired with a VA7820-HGA-2 spring return electric actuator, ensuring a fail-safe position if power is lost. Contractors value its field-selectable control options, allowing for 0(2)-10 VDC, 0(4)-20 mA, two-position, or floating signals without requiring complex reconfiguration. With a 197 psig close-off pressure and high-quality NPT threaded connections, it is an ideal choice for high-demand HVACR commercial systems requiring tight shutoff and long-term durability in variable load applications.

Key Benefits

• Optimized Modulating Control: Features an equal percentage flow plug design to maintain stable temperature control across a wide range of load conditions.
• Fail-Safe Reliability: Integrated spring return actuator ensures the valve returns to the normally closed position during power interruptions to prevent system overflow or heating issues.
• Versatile Field Integration: Supports multiple input signals including proportional 0-10V and 4-20mA, making it compatible with most Building Automation Systems (BAS).
• Durable Construction: The stainless steel trim and bronze body resist corrosion and scaling, extending the service life in steam and hydronic applications.
• High Close-Off Rating: Engineered to handle up to 197 psig close-off, ensuring zero leakage and thermal efficiency in high-pressure loops.

Common Questions

Is the actuator control signal fixed?
No, the VA7820 series actuator features field-selectable jumpers, allowing you to switch between proportional (0-10 VDC or 4-20 mA), floating, or on/off control signals based on your controller’s requirements.

Can this valve be used for steam applications?
Yes, this VG7000 series assembly is rated for saturated steam up to 38 psig, making it suitable for both heating and cooling coils.

What happens on a loss of power?
This is a normally closed (N.C.) assembly. Upon power loss, the internal spring return mechanism will automatically drive the valve stem to the closed position.

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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.