Johnson Controls VG7241PT+822D00 Valve Assembly

When your mechanical schedule calls for precise modulation in high-demand hydronic or steam systems, the Johnson Controls VG7241PT+822D00 Valve Assembly provides the industrial build quality necessary for reliable long-term service. This 2-way normally open pneumatic valve features a 1 1/4 inch NPT connection and a rugged cast bronze body designed to meet ANSI Class 250 pressure and temperature standards. Engineered with an 18.5 Cv equal percentage flow characteristic, it ensures stable control of hot water, chilled water, or saturated steam up to 38 psig. The assembly is powered by a spring return pneumatic actuator with a 4-8 psi spring range, utilizing a 25 sq. in. effective diaphragm area and a 1/2 inch stroke to provide positive shutoff and accurate positioning. Standard brass trim and Johnson Controls Ring Pack packings offer industry-leading seal integrity and simplified field repacking, making this an essential component for veteran contractors managing complex HVAC control valve replacements and new installations.

• Equal Percentage Flow: Provides superior control stability by matching the valve’s flow characteristics with the heat exchanger’s requirements.
• ANSI Class 250 Rating: Heavy-duty bronze construction handles high-pressure hydronic loops and moderate steam applications with ease.
• Serviceable Design: Features a standard bonnet and stem design for easy field retrofit and interchangeability with multiple pneumatic actuator styles.
• Tight Shutoff Performance: Every VG7000 series bronze valve is factory-tested for minimal leakage, ensuring optimal system energy efficiency.

What is the maximum fluid temperature this assembly can handle?
This Johnson Controls VG7241PT assembly is rated for water temperatures up to 284°F and saturated steam up to 38 psig. For higher temperature steam applications, a stainless steel trim variant is typically required.

Can the actuator action be reversed in the field?
The pneumatic actuator is designed for normally open (push-down-to-close) operation with the specified 4-8 psi spring range. Always verify the failsafe position required for your specific AHU or heat exchanger sequence before installation.

Is a positioner required for this assembly?
While not always mandatory, adding a V-9502 pneumatic positioner is recommended for applications requiring sequential operation or enhanced positioning power under high differential pressures.

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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.