Johnson Controls VG1841AD Valve

The Johnson Controls VG1841AD is a professional-grade 3-way ball valve engineered for precision control in commercial hydronic systems. This 1/2" NPT valve is designed with a 1.2 Cv flow coefficient and features an equal percentage flow characteristic, providing stable and linear control for mixing or diverting applications. Built by an industry leader in building automation, this forged brass body valve utilizes plated brass trim and a blow-out protected stem to ensure long-term field reliability, rated for a minimum of 200,000 leak-free cycles.

For technicians and contractors, the VG1841AD offers a robust profile for interfacing with VA9104, M9109, VA9203, and VA9208 series actuators. It handles fluid temperatures ranging from 23?F to 203?F (-5?C to 95?C) and is compatible with hot water, chilled water, and glycol solutions up to 50% concentration. With a static pressure rating of 580 psig (PN40) and a maximum close-off pressure of 200 psid, this unit meets ANSI Class IV leakage standards, ensuring efficient energy management in VAV box reheating, fan coils, and unit ventilators.

• Precision Flow Control: The equal percentage characteristic optimizes heat exchanger performance by providing consistent temperature regulation.
• Industrial Durability: Forged brass construction and plated brass internal components prevent premature wear in high-cycle HVAC environments.
• Flexible Installation: Universal 1/2-inch NPT connections and 3-way configuration allow for seamless integration into both mixing and diverting piping layouts.
• High Close-Off Capability: Maintains 200 psid close-off, preventing unwanted bypass and improving system delta T.

What actuators are compatible with the VG1841AD?
This valve is designed to be field-coupled with Johnson Controls M9000 and VA series electric actuators, specifically models VA9104, M9109, VA9203, and VA9208.

Can this valve be used for steam applications?
While the brass trim models like the VG1841AD are optimized for water and glycol, stainless steel trim models in the VG series are required for low-pressure steam applications.

Does this valve support mixing and diverting?
Yes, the 3-way design is engineered to function effectively in both mixing and diverting hydronic loops.

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.