Johnson Controls VG1245AE Valve

The Johnson Controls VG1245AE is a heavy-duty, 1/2 inch NPT two-way ball valve designed for precise control in demanding HVACR mechanical systems. Featuring a 1.9 Cv rating and equal percentage flow characteristics via a built-in Amodel flow characterizing disk, this valve ensures linear heat output and stable temperature control for chilled water, hot water, and 50% glycol solutions. The forged brass body is paired with 300 series stainless steel trim, making it suitable for 15 psi saturated steam applications and providing superior corrosion resistance compared to standard brass trim. Engineered for high-cycle performance, the VG1000 Series assembly utilizes a graphite-reinforced PTFE seat and double EPDM O-ring stem seals, tested to exceed 200,000 cycles even in iron-oxide contaminated water. This 2-way control valve supports a maximum static pressure of 580 psig and a close-off pressure of 200 psid, making it a reliable choice for field-mounting with VA9104, VA9203, or VA9300 series electric actuators.

Key Benefits for Technicians

• Precision Flow Control: The equal percentage flow insert provides a 500:1 rangeability, preventing hunting and maintaining setpoints under varying load conditions.
• Steam Rated Durability: Equipped with stainless steel ball and stem trim, allowing for safe operation in low-pressure steam systems up to 15 psig.
• High Static Pressure Rating: The rugged forged brass body supports up to 580 psig static pressure, ensuring integrity in high-rise and industrial loops.
• Leak-Free Reliability: Dual EPDM O-ring seals and reinforced seats provide an ANSI Class IV leakage rating for tight shutoff throughout the valve's lifecycle.
• Direct Actuator Compatibility: Designed for seamless integration with Johnson Controls actuators, reducing installation time and eliminating the need for complex linkages.

Common Questions

Can the VG1245AE be used for steam applications?
Yes, because this specific model uses stainless steel trim, it is rated for saturated steam up to 15 psi. When installing for steam, the valve must be mounted with the stem in a horizontal position to protect the actuator from heat transfer.

What is the maximum close-off pressure for this 1/2" valve?
The VG1245AE provides a tight close-off of 200 psid. This high differential pressure capability ensures reliable shutoff even in systems with high-head pumps.

Does this valve include the actuator?
No, the VG1245AE is the valve body only. It is compatible with VA9000 and M9000 series actuators, which should be selected based on your control signal requirements (On/Off, Floating, or Proportional).

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.