Johnson Controls V46AC-24 Regulating Valve

The Johnson Controls V46AC-24 is a professional-grade pressure actuated water regulating valve designed for high-performance water-cooled condensers. Engineered for systems utilizing non-corrosive refrigerants, this valve features a 3/4" NPT connection and an adjustable opening point range of 70 to 260 PSI. As an open on pressure rise regulator, it precisely modulates water flow to maintain stable head pressure, ensuring optimal heat transfer efficiency in commercial refrigeration and HVAC units. The bellows assembly is built for durability, providing a direct-acting response to refrigerant pressure changes without the need for external power. This model is specifically calibrated for high-pressure applications, offering a rugged construction that minimizes hammer and ensures quiet operation during modulation. For technicians servicing medium to high-pressure racks, the V46AC-24 provides the reliable throttling necessary to prevent excessive water consumption while protecting the compressor from high-discharge pressure conditions.

Key Technical Benefits

• Precise Head Pressure Control: Maintains consistent refrigerant head pressure by modulating water flow through the condenser.
• Wide Operating Range: Adjustable 70-260 PSI range accommodates various refrigerant types and ambient conditions.
• No External Power Required: Direct-acting pressure actuated design simplifies installation and reduces failure points.
• Commercial Grade Durability: Specifically engineered for commercial water-cooled condensers and industrial refrigeration systems.
• Standard 3/4" NPT Ports: Ensures easy integration into existing piping configurations for streamlined replacement.

Common Technical Questions

What is the maximum water temperature rating for the V46AC-24?
This valve is designed for standard cooling water applications; typically, these units handle water temperatures up to 170°F (77°C), though performance is optimized for standard tower or city water loops.

Can the V46AC-24 be used with ammonia systems?
No, the V46 series is designed for use with non-corrosive refrigerants. For ammonia applications, a stainless steel or specific ammonia-rated regulating valve is required.

How do I adjust the opening point on this valve?
The opening pressure can be adjusted by turning the range adjustment screw located at the top of the spring housing. Turning the screw alters the compression on the range spring to match the desired refrigerant pressure setpoint.

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.