Johnson Controls VG1845AD Valve

The Johnson Controls VG1845AD is a professional-grade 1/2 inch 3-way ball valve engineered for precise mixing or diverting in commercial HVAC systems. This VG1000 Series valve features a forged brass body and a 1.2 Cv rating, utilizing a stainless steel ball and stem for enhanced durability and chemical resistance. Designed with an equal percentage flow characteristic, the assembly ensures stable control loop performance when regulating hot water, chilled water, or 50% glycol solutions. For high-demand applications, the stainless steel trim allows the valve to handle low-pressure steam up to 15 psig. The unit is built with graphite-reinforced PTFE seats and EPDM O-rings, providing a maintenance-free life expectancy exceeding 200,000 cycles. With a 580 psig static pressure rating and a 200 psi close-off pressure, this NPT threaded valve offers the reliable shutoff required for modern hydronic balancing and terminal unit control.

Key Benefits

• Equal Percentage Flow: Provides linear heat output from coils, optimizing HVAC control valve response.
• Stainless Steel Trim: Enhanced corrosion resistance and suitability for 15 psi steam applications.
• High Close-Off: Rated for 200 psi close-off pressure to prevent leakage in high-head pumping systems.
• Service Longevity: Rated for over 200,000 cycles even in iron-oxide contaminated hydronic loops.
• Actuator Compatibility: Designed for seamless field or factory mounting with VA9104, M9106, or VA9203 actuators.

Common Questions

What is the maximum fluid temperature for the VG1845AD?
This model is rated for fluid temperatures ranging from -22°F to 284°F (-30°C to 140°C), making it suitable for both extreme cooling and low-pressure steam service.

Can this 3-way valve be used for both mixing and diverting?
Yes, the VG1845AD is designed for versatility in piping arrangements and can be applied in both mixing and diverting configurations within hydronic systems.

Does this valve include a characterizing disk?
Yes, the Johnson Controls VG1845AD 1.2 Cv includes a built-in characterizing disk to ensure a true equal percentage flow for high-precision temperature control.

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.