Johnson Controls VG2431UM Valve

The Johnson Controls VG2431UM is a high-performance 3-inch 2-way globe valve engineered for precision flow control in commercial HVACR systems. This normally closed (N.C.) assembly features a robust cast iron body and brass trim, making it ideal for managing hot water, chilled water, or 50% glycol solutions. With a flow coefficient (Cv) of 83 and a modified linear flow characteristic, this valve ensures stable modulation and tight shut-off in demanding hydronic applications. The ANSI Class 125 flat-faced flange connection provides a secure, industrial-grade fit, while the 3/8" threaded stem is designed for seamless integration with pneumatic or electric actuators. Utilizing a push-down-to-open (PDTO) action, the VG2431UM is built to withstand medium temperatures ranging from 35°F to 281°F and maximum static pressures up to 175 psi. This flanged globe valve is a reliable choice for contractors seeking a durable VG2000 series solution for large-scale terminal unit or air handling unit control.

• High Flow Capacity: Features a 83 Cv rating to support high-volume fluid transfer in 3-inch piping systems.
• Industrial Durability: The cast iron construction with brass trim ensures long-term structural integrity and corrosion resistance.
• Precise Control: Modified linear flow provides accurate throttling for optimal temperature regulation.
• Standardized Fit: ANSI Class 125 flanged ends allow for straightforward installation and maintenance in existing commercial headers.
• System Versatility: Compatible with various Johnson Controls actuators, including the MP8000 series, for flexible field configuration.

What is the maximum close-off pressure for the VG2431UM?
Close-off pressure depends on the specific actuator paired with the valve; for example, a 50 sq. in. pneumatic actuator typically provides a close-off rating of approximately 17 psi.

Can this valve be used for steam applications?
Yes, the VG2431UM is rated for saturated steam up to 35 psig at 281°F, provided appropriate packing and actuators are utilized.

What is the recommended installation orientation?
For optimal performance and to prevent debris accumulation in the bonnet, it is recommended to install the valve in a horizontal pipe run with the actuator in the upright vertical position.

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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.