Johnson Controls VG7243NT Valve

The Johnson Controls VG7243NT is a high-performance 1-inch 2-way globe valve designed for precision regulation of hot water, chilled water, and 50/50 glycol solutions in commercial HVAC systems. Built for durability in demanding environments, this normally open globe valve features a robust cast bronze body and stainless steel trim to resist corrosion and extend the lifecycle of the assembly. With an 11.6 Cv rating and an equal percentage flow characteristic, it provides superior throttling accuracy, ensuring stable temperature control even under varying load conditions. The valve is engineered for push-down-to-close action and utilizes a standard threaded stem, making it fully compatible with a wide range of Johnson Controls electric and pneumatic actuators.

For contractors managing high-pressure applications, the VG7243NT is rated for ANSI Class 250 service, capable of handling fluid temperatures from 35°F to 338°F and saturated steam up to 38 psig. The NPT threaded connections facilitate a secure, leak-resistant installation within standard piping configurations. Whether you are performing a field retrofit or a new installation, this VG7000 series valve offers consistent reliability and high rangeability to maintain optimal system efficiency.

• Stainless Steel Trim: High-grade internal components reduce wear and prevent premature failure in steam and treated water applications.
• Equal Percentage Flow: Provides linear heat output for more predictable and stable control loop performance.
• High Pressure Rating: Verified for ANSI Class 250, ensuring safety and integrity in high-rise and industrial hydronic systems.
• Standardized Compatibility: Threaded stem design allows for easy pairing with various Johnson Controls valve actuators without requiring specialized adapters.

What is the maximum close-off pressure for the VG7243NT?
The close-off pressure is determined by the specific actuator paired with the valve. When used with high-force actuators, this series can often achieve close-off ratings over 200 psig, but you must verify the specifications of your specific motor or pneumatic diaphragm.

Can this valve be used for steam applications?
Yes, the Johnson Controls VG7243NT is rated for saturated steam up to 38 psig. The stainless steel trim is specifically recommended for steam service to prevent the wire-drawing and erosion common with brass-trimmed valves.

Is the packing field-serviceable?
Yes, the VG7000 series is designed for maintenance. The spring-loaded PTFE V-ring packing can often be repacked or replaced in the field, reducing downtime during routine service intervals.

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.