Johnson Controls VG7241RT+823C00 Valve Assembly

The Johnson Controls VG7241RT+823C00 is an industrial-grade 2-way normally open valve assembly engineered for precise modulating control in steam and water applications. Featuring a 1-1/2 inch NPT connection and a 28.9 Cv equal percentage flow characteristic, this unit utilizes a cast bronze body with durable brass trim to maintain structural integrity under high-temperature conditions. The assembly is driven by an integral pneumatic actuator with a 3-7 PSI spring range, ensuring reliable spring return fail-safe operation during power or pressure loss. As a veteran-preferred HVAC control valve, it provides high-rangeability and tight shut-off capabilities necessary for maintaining setpoint accuracy in commercial air handling units and heat exchangers. This pneumatic globe valve assembly is designed for drop-in compatibility with legacy systems, offering a rugged solution for building automation systems (BAS) requiring consistent fluid dynamics and low leakage rates.

Key Benefits

• High Flow Capacity: The 28.9 Cv rating and equal percentage plug design provide superior throttling control for heating and cooling cycles.
• Robust Construction: Cast bronze body and brass trim offer maximum resistance to corrosion and wear in aggressive hydronic environments.
• Fail-Safe Logic: The 3-7 PSI spring return actuator ensures the valve reverts to the normally open position, protecting critical system components.
• Precision Sealing: Engineered to provide a tight shut-off, reducing energy waste and preventing bypass flow when the valve is commanded closed.
• Ease of Installation: Standard 1-1/2" NPT threading facilitates a direct fit into existing pipework without the need for specialized adapters.

Common Questions

What is the maximum operating pressure for the VG7241RT?
This valve is designed for standard commercial pressure ratings typically found in steam and water systems; however, the specific static and close-off pressure limits depend on the media temperature and actuator force.

Can this actuator be used with a 0-10V signal?
The current configuration uses a pneumatic 3-7 PSI spring range. To interface with an electronic 0-10V signal, an external electro-pneumatic transducer (I/P) would be required.

Is the packing nut adjustable on this series?
Yes, these Johnson Controls assemblies typically feature a self-adjusting packing or an accessible packing nut for routine maintenance and leak prevention.

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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.