Johnson Controls VG7551LT Valve

The Johnson Controls VG7551LT is a high-performance 3/4 inch union angle globe valve designed for precision control of hot water, chilled water, and steam in commercial HVAC systems. This 2-way normally open valve features a durable cast bronze body and robust brass trim, ensuring longevity under demanding thermal conditions. With a 7.3 Cv rating and an equal percentage flow characteristic, it provides stable modulating control, making it a reliable choice for hydronic globe valve applications requiring fine-tuned fluid regulation. The standard threaded stem and push down to close action facilitate seamless integration with compatible VG7000 series pneumatic and electric actuators. Rated for ANSI Class 250 service, this valve body supports fluid temperatures ranging from 35°F to 248°F, making it essential for steam and water control in terminal unit and heat exchanger piping configurations.

Key Benefits

• High-strength cast bronze body with brass trim provides excellent corrosion resistance and operational durability.
• Optimized 7.3 Cv equal percentage flow ensures linear control and energy efficiency in variable-load hydronic systems.
• Versatile union angle configuration allows for easy installation and maintenance in tight mechanical spaces.
• Wide media compatibility, including steam, hot water, and 50% glycol solutions, for diverse HVACR technical requirements.
• Reliable normally open fail-safe position maintains flow during control signal loss in critical heating or cooling loops.

Common Questions

What actuators are compatible with the Johnson Controls VG7551LT?
This valve is designed for the VG7000 series and is compatible with various Johnson Controls pneumatic spring-return and electric non-spring return actuators that match the standard threaded stem design.

Can this globe valve be used in steam applications?
Yes, the VG7551LT is rated for steam service up to 38 psi and can handle fluid temperatures up to 248°F, making it suitable for low-pressure steam heat exchangers.

What is the advantage of the union angle connection?
The 3/4" union angle connection simplifies installation by allowing the valve to be disconnected without cutting pipe, which is critical for maintenance in confined valve assemblies.

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.