Johnson Controls VG2231VN Valve

The Johnson Controls VG2231VN Valve is a professional-grade 4-inch flanged globe valve engineered specifically for high-capacity flow regulation in commercial HVACR systems. This 2-way normally open (Push-Down-To-Close) valve features an ASME Class 125 flat-faced flange and a rugged cast iron body designed to handle chilled water, hot water, 50% glycol solutions, and saturated steam up to 35 psig. With a 150 Cv flow coefficient and modified linear flow characteristics, the VG2000 series ensures precise throttling and operational stability. The internal brass trim and EPT rubber packing provide a reliable 0.1% leakage rate across a temperature range of 35°F to 281°F. Contractors benefit from the 1/2-inch threaded stem, which allows for seamless field mounting of MP8000 pneumatic actuators or M9000 series electric actuators. This industrial control valve is a standard choice for hydronic heating and cooling plants requiring high durability and consistent 175 psig maximum allowable water pressure.

• Versatile Application: Fully compatible with chilled water, hot water, and low-pressure steam service in 2nd-stage HVAC loops.
• Precision Flow Control: The modified linear plug design provides accurate demand response and prevents system hunting.
• Robust Construction: Cast iron body with black lacquer finish and high-strength brass trim for extended component life.
• Interchangeable Assembly: Standardized 1/2-inch stem and bonnet design simplifies the mounting of pneumatic or electric spring-return actuators.
• Ease of Installation: Directional flow arrows cast into the body ensure correct piping orientation on the job site.

What is the maximum close-off pressure for this 4-inch valve?
Close-off pressure depends on the specific actuator used; for instance, a VA-6100 series electric actuator typically provides an 89 psig close-off, while pneumatic options vary by spring range and supply pressure.

Can this valve be used for steam applications?
Yes, the VG2231VN is rated for saturated steam up to 35 psig at 281°F, making it suitable for many commercial heating exchangers.

Does this unit include the actuator?
No, the VG2231VN is the valve body only. It must be paired with a compatible Johnson Controls actuator for operation.

This item must ship via trucking. Please contact us for freight quote.

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.