Johnson Controls VG7441RT+72CHGA Valve Assembly

The Johnson Controls VG7441RT+72CHGA is a heavy-duty 2-way normally closed globe valve assembly engineered for precise flow regulation in commercial HVAC systems. This 1 1/2-inch NPT assembly features a high-capacity 28.9 Cv rating and an equal percentage flow characteristic, ensuring stable control of hot water, chilled water, or 50/50 glycol solutions. Constructed with a cast bronze body and durable brass trim, this valve is built for long-term service in demanding environments. It comes equipped with a spring return actuator that provides a reliable failsafe, returning the stem to the up position upon power loss to prevent internal system damage.

This unit serves as the direct replacement for VG7241RT+946HGA, offering seamless mechanical compatibility. The factory-mounted VA7800 series electric actuator provides field-selectable control options, including 0(2)-10 VDC, 0(4)-20 mA, two-position, or floating signals, allowing technicians to adapt the assembly to diverse building automation requirements. With a maximum close-off pressure of 76 psig and a fluid temperature range of 35°F to 284°F, the VG7441RT+72CHGA is a rugged solution for high-performance fluid management.

Key Benefits

• Precise Modulation: The 28.9 Cv equal percentage globe design prevents hunt-and-peck control issues in central plant applications.
• Field Versatility: Direct conversion between proportional, floating, and on/off control via on-board actuator switches simplifies installation.
• Failsafe Security: Mechanical spring return ensures the normally closed position is maintained during power interruptions.
• Industrial Durability: The cast bronze body meets ASME B16.15 Class 250 requirements for superior pressure and temperature resistance.
• Serviceability: Standardized stem and bonnet design allows for future actuator upgrades or in-place valve repacking.

Common Questions

What is the difference between this and the older VG7241RT+946HGA?
The VG7441RT+72CHGA is the official technical successor. It maintains the same 1 1/2" NPT footprint and flow capacity but utilizes the updated VA7800 series actuator for enhanced signal compatibility and more reliable spring return torque.

Can I use this valve for steam applications?
Yes, this assembly is rated for saturated steam up to 38 psig, provided the internal media temperature does not exceed the 284°F limit for the brass trim components.

Is the control signal fixed at 0-10 VDC?
No. While it supports 0-10 VDC, it is field-selectable. You can configure it for 2-10 VDC, 4-20 mA, or floating control to match your specific controller output.

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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.