Johnson Controls VG7241NT+822E00 Valve Assembly

The Johnson Controls VG7241NT+822E00 is a heavy-duty 1-inch NPT pneumatic globe valve assembly designed for professional-grade HVAC water and steam control. This 2-way normally open valve features a robust cast bronze body and precision brass trim, ensuring reliable performance in demanding hydronic systems. With an 11.6 Cv equal percentage flow characteristic, it provides stable modulating control, preventing hunting in high-demand heating and cooling loops. The assembly is powered by a 9-13 psi spring range pneumatic actuator, delivering consistent spring return fail-safe operation during loss of pilot air. For technicians servicing terminal units or air handlers, this VG7000 series bronze valve offers a field-proven solution for modulating pneumatic steam control and high-pressure hot water applications. Its 1-inch FNPT connections allow for seamless integration into existing threaded piping, providing a durable mechanical seal and high close-off pressure ratings essential for balanced system performance.

• Precise Flow Control: The 11.6 Cv rating with equal percentage characteristics ensures linear heat output and stable system tuning.
• Fail-Safe Reliability: Integrated 9-13 psi spring return actuator provides a mechanical "normally open" safety position upon air pressure failure.
• Industrial Build Quality: Cast bronze construction with brass internals resists cavitation and corrosion in steam and water service.
• Standardized Fitment: 1-inch NPT threading allows for rapid installation or replacement in standard commercial piping layouts.

Common Installation Questions:

What is the maximum fluid temperature rating for this assembly?
The VG7000 series bronze body is typically rated for saturated steam up to 38 psig and water temperatures up to 281°F, depending on the packing material used.

Can this valve be used for chilled water applications?
Yes, the cast bronze body and brass trim are suitable for chilled water, provided the pneumatic lines remain free of moisture and the actuator is protected from excessive condensation.

What is the purpose of the 9-13 psi spring range?
The spring range dictates the control signal required for the pneumatic actuator to shift from fully open to fully closed, allowing for sequenced control with other pneumatic devices.

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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.