Johnson Controls VG7441NT+72CHGA Valve Assembly

The Johnson Controls VG7441NT+72CHGA is a heavy-duty 1-inch NPT 2-way normally closed globe valve assembly engineered for precise control of hot water, chilled water, and steam in demanding HVAC systems. This cast bronze body valve features an equal percentage flow characteristic and a high 11.6 Cv rating, ensuring stable modulation and linear heat transfer across varying load conditions. The assembly is driven by the VA-7200 series spring return actuator, which provides reliable fail-safe operation during power loss. This unit is highly versatile for field integration, supporting 0-10 VDC, 4-20 mA proportional control, or floating/two-position signals via field-selectable DIP switches. It serves as the direct Johnson Controls replacement valve for legacy models VG7241NT+946AGA and VG7241NT+946HGA, allowing for seamless mechanical retrofits without piping modifications. Designed for industrial-grade durability, the brass trim and spring-loaded stem packing ensure long-term performance in high-pressure hydronic circuits.

• High-Flow Efficiency: The 11.6 Cv capacity and equal percentage plug design provide superior control for terminal unit HVAC applications.
• Field-Selectable Control: Compatible with 24VAC systems and multiple input signals (Proportional or On/Off) for maximum controller flexibility.
• Direct Retrofit Compatibility: Engineered to replace obsolete VG7241 series assemblies with identical face-to-face dimensions.
• Fail-Safe Protection: Integrated mechanical spring return ensures the valve closes securely upon signal or power failure to protect coil integrity.
• Rugged Construction: Rated for high-temperature fluid media with a cast bronze body and durable brass internal components for commercial HVAC valve reliability.

Common Questions

What is the maximum fluid temperature this assembly can handle?
This globe valve assembly is typically rated for saturated steam up to 38 psig and water temperatures up to 281°F, depending on the internal packing and actuator thermal isolation.

Can I change the control signal from 0-10V to 4-20mA in the field?
Yes, the VA-7200 actuator features internal jumpers or DIP switches that allow you to select between modulating 2-10 VDC / 4-20 mA, floating, or two-position control logic.

Is this a direct drop-in for the VG7241NT series?
Yes, the VG7441NT+72CHGA is the official manufacturer-designated replacement for the 946AGA and 946HGA models, maintaining the same 1-inch NPT connection size and CV rating.

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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.