Johnson Controls VG7241NT+72CHGA Valve Assembly

The Johnson Controls VG7241NT+72CHGA is a heavy-duty, 1-inch 2-way normally open globe valve assembly engineered for precise modulation in commercial HVAC systems. This VG7000 series bronze valve features a robust cast bronze body combined with brass trim and an 11.6 Cv rating, providing an equal percentage flow characteristic for superior control of hot water, chilled water, or 38 psig saturated steam. The integrated spring return actuator supports 24Vac power and offers field-selectable control signals, including 0(2)-10Vdc proportional, 4-20mA, or floating inputs. As a direct replacement for VG7241NT+926AGA, this assembly ensures seamless integration into existing Johnson Controls pneumatic or electric piping layouts. Designed for longevity in demanding environments, it maintains high close-off pressure ratings and features a spring-return safety function that drives the valve to a normally open position during power loss, protecting critical system components and maintaining flow in essential hydronic loops.

• Precise Hydronic Control: The 11.6 Cv equal percentage flow characteristic provides stable temperature regulation even under varying load conditions.
• Universal Signal Compatibility: Field-selectable inputs for proportional 0-10Vdc or 4-20mA signals make this automated globe valve compatible with most BAS and DDC controllers.
• High-Durability Construction: Built with a cast bronze body and reinforced brass trim to resist corrosion and withstand fluid temperatures up to 284°F.
• Fail-Safe Operation: The integrated spring return actuator ensures the valve returns to its default open state during a power failure.
• Direct Retrofit: Engineered as the official successor to the VG7241NT+926AGA, eliminating the need for costly piping modifications.

Is the VG7241NT+72CHGA compatible with steam applications?
Yes, this unit is rated for saturated steam up to 38 psig and is frequently utilized in steam-to-water heat exchangers and terminal unit reheating coils.

What is the difference between this and the older VG7241NT+926AGA model?
The VG7241NT+72CHGA is the updated manufacturer-recommended replacement. It utilizes a newer actuator platform while maintaining the exact physical dimensions and 1" NPT connection points of the legacy 926AGA assembly.

Can I change the control signal in the field?
Yes. This assembly features an adaptable actuator that allows technicians to switch between 0-10Vdc, 2-10Vdc, floating, or on/off control via internal switches or wiring configurations.

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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.