Johnson Controls V46AS-1 Regulating Valve

The Johnson Controls V46AS-1 is a professional-grade pressure actuated water regulating valve engineered for high-capacity commercial refrigeration systems. Featuring a 2" ASME four hole flange and a rugged cast iron body, this direct-acting valve is designed to modulate water flow to maintain stable head pressure in water-cooled condensers. With an opening point range of 70 to 170 PSI, it offers precise control for systems utilizing non-corrosive refrigerants. The integration of a Style 5 pressure element with a 1/4" external flare fitting ensures rapid response to refrigerant pressure fluctuations, preventing excessive water consumption and optimizing compressor efficiency. Built for durability in demanding mechanical rooms, the V46AS-1 water valve utilizes a pressure-balanced design to eliminate chatter and withstand high hydraulic shock, making it a reliable choice for HVACR contractors managing large-scale cooling loads.

• Robust Construction: Cast iron body with a rust-resisting finish specifically designed for commercial cooling systems.
• Precision Modulation: Maintains consistent refrigerant head pressure by accurately regulating water or glycol flow.
• Serviceability: Features a take-apart design that allows for internal component access without removing the valve from the piping or pumping down the system.
• System Stability: Pressure-balanced diaphragms ensure the opening point range remains unaffected by varied water inlet pressures.
• Hammer Prevention: Engineered to minimize water hammer and provide smooth modulation throughout the entire flow range.

What is the maximum water temperature for the V46AS-1?
This valve is rated for a maximum water temperature of 170°F (77°C), making it suitable for most standard condenser water loops.

Can this valve be used with ammonia?
No, the V46AS-1 is designed for non-corrosive refrigerants. For ammonia applications, a specific ammonia-compatible power element or maritime model is required.

How do I adjust the opening point?
The opening point can be adjusted using the screw on the range spring housing. Turning the screw allows for fine-tuning within the 70 to 170 PSI specification to match your specific refrigeration system requirements.

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.