Johnson Controls VG1241CP Valve

The Johnson Controls VG1241CP is a veteran-grade 1-inch NPT 2-way ball valve designed for precision fluid control in commercial HVAC systems. Built with a robust forged brass body and featuring plated brass trim, this valve is engineered to regulate the flow of hot water, chilled water, and 50% glycol solutions. It utilizes an internal flow-characterizing disk to maintain an equal percentage flow characteristic, ensuring stable temperature control and linear heat output in response to varied actuator signals. With a 18.7 Cv rating, this valve provides high-capacity throughput while maintaining a 500:1 rangeability for exceptional low-flow accuracy. The VG1000 Series design ensures a tight shutoff with an ANSI Class IV leakage rating and a 200 psi close-off pressure. This unit is specifically intended for non-potable water applications and is compatible with VA9104 and VA9203 series actuators for proportional or on/off control.

Key Benefits

• Equal Percentage Flow Control: The integrated flow-characterizing disk eliminates the "hunting" common in standard ball valves, providing a linear relationship between valve open percentage and heat transfer.
• Heavy-Duty Construction: The forged brass body supports a 580 psig static pressure rating and 200 psi close-off, preventing bypass leakage and ensuring reliable performance in high-head systems.
• Long-Life Stem Seals: Features double EPDM O-ring stem seals and graphite-reinforced PTFE seats proven to exceed 200,000 cycles even in iron-oxide contaminated water.
• Broad Compatibility: Standard 1" NPT female threads allow for seamless integration with existing piping, while the universal mounting flange fits multiple Johnson Controls actuators.

Common Questions

No. The VG1241CP features plated brass trim and is rated only for water and glycol solutions up to 203?F. For 15 psi steam service, a model with stainless steel trim, such as the VG1245 series, is required.

Yes. For 2-way models with a characterizing disk, the inlet must be Port A to ensure the equal percentage characteristic functions correctly and to protect internal components from turbulence.

This valve body is designed for use with Johnson Controls VA9104 (non-spring return) or VA9203 (spring return) electric actuators. Always verify the required torque and control signal (proportional vs. on/off) before installation.

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.