Johnson Controls VG1241ER Valve

The Johnson Controls VG1241ER Valve is a high-performance 1-1/2-inch NPT HVAC control valve designed for precision regulation in chilled water, hot water, and up to 50% glycol solutions. Built with a robust forged brass body, this two-way ball valve features a 29.2 Cv rating and a plated brass trim, ensuring reliable flow control in demanding commercial environments. As part of the VG1000 Series, it utilizes a sophisticated equal percentage flow characteristic through a built-in characterizing disk, allowing for linear heat transfer and stable hunt-free operation even at low flow rates. This motorized ball valve is rated for 580 psig static pressure and can handle 200 psi close-off, making it an essential component for high-rises and large scale mechanical systems. For veteran contractors, the 200,000-cycle life expectancy and NPT end connections mean reduced maintenance callbacks and simplified actuator linkage integration with VA9104 or VA9203 series units.

Key Benefits for the Contractor:

• Equal Percentage Flow Control: Ensures consistent temperature management across varying load conditions by matching the heat exchange characteristics of the coil.
• High Close-Off Pressure: Rated for up to 200 psi close-off, preventing leakage and energy loss even in systems with high differential pressures.
• Durable Material Construction: The forged brass body and chrome-plated brass ball provide superior resistance to corrosion and scaling in closed-loop systems.
• Blowout-Proof Stem: Incorporates dual EPDM O-rings for secondary sealing, protected by a hardware-tightened stem design for maximum safety.
• Flexible Actuator Compatibility: Designed for seamless integration with Johnson Controls spring-return and non-spring-return electric actuators.

Common Questions:

Q: Is the VG1241ER rated for steam service?
A: No. This specific model features brass trim and is restricted to water and glycol applications. For steam service up to 15 psig, a stainless steel trim model from the VG1000 series must be selected.

Q: Does the valve direction matter during installation?
A: Yes. For proper operation of the characterizing disk, Port A must always be the inlet. Installing the valve in reverse flow can lead to turbulence and inaccurate control.

Q: Can this valve be used for potable water systems?
A: No, this valve is designed for closed-loop HVACR hydronic systems and is not lead-free rated for conveying water intended for human consumption.

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.