Johnson Controls V46AD-1 Valve

The Johnson Controls V46AD-1 is a professional-grade, pressure-actuated water regulating valve specifically engineered for water-cooled condensers in commercial refrigeration and HVAC applications. This 1-inch NPT direct-acting water valve modulates water or glycol flow in response to refrigerant head pressure changes, ensuring stable operating conditions for ice machines, computer room AC units, and refrigeration cases. Built with a rugged cast iron body and a rust-resisting finish, the V46AD-1 features a standard flow design that opens on pressure increase, effectively managing non-corrosive refrigerants like R-22, R-134a, R-404A, and R-507. With an opening point range of 70 to 260 PSI, it provides technicians with precise field adjustability via a 30-inch capillary and a Style 45 pressure element. The internal balanced pressure design utilizes high-quality diaphragms to isolate the range spring from the cooling media, preventing sedimentation and ensuring consistent performance in demanding service environments. This unit serves as a direct technical equivalent to the V46AD-1C model for streamlined inventory management.

Key Benefits

• Precision Head Pressure Control: Automatically modulates coolant flow to maintain optimal head pressure and prevent excessive water consumption.
• Reduced Mechanical Wear: Designed with no close-fitting or sliding parts in the water passages, significantly reducing the risk of water hammer and chatter.
• Standardized Connectivity: Equipped with a 1" NPT threaded connection and a 1/4" flare nut (Style 45) for straightforward integration into existing refrigerant lines.
• Field Serviceability: Features an easy-to-use manual flushing mechanism that allows for debris removal without disturbing the factory or field pressure settings.
• Broad Media Compatibility: Suitable for use in both open and closed loop systems with water or glycol solutions.

Common Questions

How do I adjust the opening point on the V46AD-1?
Using a standard service wrench, turn the adjustment screw counterclockwise to raise the opening point or clockwise to lower it. This allows for precise tuning based on the specific refrigerant and ambient conditions of the installation.

Is this valve compatible with ammonia systems?
No, the V46AD-1 is designed for non-corrosive refrigerants. For ammonia applications, a specific ammonia-rated power element and valve construction must be utilized.

Can the sensing element be replaced without replacing the entire valve?
Yes, the Style 45 pressure element and internal diaphragms are replaceable parts, allowing for cost-effective maintenance if the sensing portion fails due to kinking or vibration-induced leaks.

This item is not eligible for free shipping.

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.