Johnson Controls VG7241RT+72CHGA Valve Assembly

The Johnson Controls VG7241RT+72CHGA is a heavy-duty, 1-1/2 inch 2-way normally open valve assembly designed for precise flow control in demanding HVACR applications. This VG7000 series globe valve features a robust cast bronze body with brass trim and a standard threaded stem, providing exceptional durability for regulating hot water, chilled water, and 50/50 glycol solutions. Rated for a 28.9 Cv flow coefficient with an equal percentage flow characteristic, it ensures stable modulation and linear thermal response in high-capacity systems. The integrated VA7820 series electric actuator is powered by 24Vac and supports multiple control signals, including 0(2)-10Vdc, 0(4)-20mA, two-position, or floating, which are field-selectable to match specific site requirements. As a spring return actuator, it provides fail-safe reliability by returning to the normally open position during power loss. This assembly is the direct Johnson Controls replacement valve for discontinued models VG7241RT+926AGA and VG7241RT+946AGA, allowing for seamless integration into existing NPT threaded piping layouts without extensive reconfiguration.

• Superior Flow Control: The equal percentage flow characteristic provides consistent temperature regulation even in systems with fluctuating pressure.
• Broad Compatibility: This 24Vac globe valve assembly is field-selectable for proportional, floating, or on/off control, making it a versatile choice for contractors.
• Direct Replacement Logic: Specifically engineered to replace VG7241RT+926AGA and VG7241RT+946AGA, ensuring a perfect fit and matched performance for legacy systems.
• High Close-Off Pressure: Designed to maintain tight shut-off against system pressures up to 71 psig, preventing energy waste and bypass flow.
• Field Serviceable: Features the standard Johnson Controls ring pack packing for long-term reliability and ease of maintenance in the field.

Is the actuator on the VG7241RT+72CHGA fail-safe?
Yes, this spring return valve is configured as normally open. In the event of a power failure, the mechanical spring ensures the valve returns to the fully open position to maintain flow.

What media can the VG7241RT+72CHGA handle?
This bronze body control valve is rated for hot water, chilled water, and glycol solutions up to 50% concentration. It is also suitable for low-pressure saturated steam applications up to 35 psig.

Can I change the control signal in the field?
Absolutely. The VA7820 series actuator includes internal switches that allow a technician to select between 0-10Vdc proportional, 3-wire floating, or two-position control signals without needing additional hardware.

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.