Johnson Controls V46AA-1 Regulating Valve

The Johnson Controls V46AA-1 is a commercial-grade, direct-acting pressure actuated water regulating valve engineered to maintain stable refrigerant head pressure in water-cooled condensers. Designed for use with non-corrosive refrigerants, this valve features a rugged cast brass body and a 3/8" NPT threaded connection, making it elective for high-demand refrigeration and HVAC applications. With an opening point range of 70 to 260 PSI, technicians can precisely calibrate the head pressure control to ensure optimal system efficiency and reduced water consumption. This model includes a 30-inch capillary with a 1/4" flare nut (Style 45) pressure element for reliable remote sensing. As a versatile HVAC water regulating valve, the V46AA-1 serves as a field-serviceable direct replacement for legacy units including the V46AA-35, V46AA-18, and V46AA-31, provided the flare is cut to accommodate style 34 connections where required.

Key Benefits

• Broad Compatibility: Functions as a high-performance replacement for V46AA-35, V46AA-18, and V46AA-31, ensuring minimal downtime during retrofits.
• Precision Modulation: The direct-acting design opens on pressure rise, providing immediate response to fluctuations in the refrigerant circuit.
• Serviceable Design: Built with no close-fitting or sliding parts in water passages, allowing for manual flushing and easy in-line repairs without pumping down the system.
• Technical Durability: Rated for a maximum water temperature of 170°F (77°C) and water supply pressures up to 150 PSIG.

Common Questions

How do I adjust the opening point on the V46AA-1?
The opening point is adjusted using the range adjustment screw located at the top of the spring housing. Turning the screw counterclockwise raises the opening point pressure, while clockwise rotation lowers it.

Can this valve be used for salt-water or ammonia applications?
The standard V46AA-1 is designed for non-corrosive refrigerants and fresh water. For maritime or ammonia applications, specific bronze or stainless steel bellows models must be utilized.

Is the capillary length sufficient for remote mounting?
The unit comes equipped with a 30-inch capillary. If a longer reach is necessary, the flare can be modified or extensions used, ensuring no sharp bends restrict refrigerant flow to the bellows.

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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.