Johnson Controls VG1245BN Valve

The Johnson Controls VG1245BN is a high-performance 3/4 inch NPT ball valve engineered specifically for precise HVAC control in commercial applications. Designed as part of the VG1000 Series ball valve line, this two-way unit features an integrated Amodel flow characterizing disk that ensures an equal percentage flow characteristic, providing the consistent temperature control typically associated with traditional globe valves. The 11.7 Cv rating and forged brass body make it a reliable choice for managing chilled water, hot water, and 50% glycol solutions.

This valve is built with a 300 series stainless steel ball and stem, allowing it to handle fluid temperatures ranging from -22° to 284°F and providing compatibility with 15 psi saturated steam. The dual EPDM o-ring stem seals and graphite-reinforced PTFE seats are tested to withstand over 200,000 cycles, even in systems with iron-oxide contamination. With a high close-off pressure rating of 200 psi and a 580 psig static pressure limit, the VG1245BN valve ensures tight shutoff and long-term durability in demanding hydronic loops.

• Enhanced Flow Control: The equal percentage flow characteristic minimizes hunting and improves system efficiency in fan coil and air handling units.
• Corrosion Resistance: Stainless steel trim prevents scale buildup and maintains smooth operation in aggressive fluid environments.
• High Rangeability: A 500:1 rangeability ratio allows for precise modulation across the entire stroke of the actuator.
• Maintenance-Free Design: Graphite-filled ball seals provide superior wear resistance compared to standard virgin Teflon seats.
• Versatile Compatibility: Mounts easily to VA9104, VA9203, and VA9208 series actuators for non-spring or spring return configurations.

Is the VG1245BN compatible with steam systems?
Yes, because this model features stainless steel trim, it is rated for saturated steam up to 15 psi. Ensure the valve is installed with the stem horizontal to the piping for steam applications to protect the actuator.

Which port should be used as the inlet?
For proper operation of the characterized flow disk, Port A must be designated as the inlet. Reversing the flow can result in noise, vibration, and reduced control accuracy.

What is the maximum static pressure this valve can handle?
The forged brass body provides a static pressure rating of 580 psig (PN40), making it suitable for high-rise hydronic systems.

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.