Johnson Controls V46AL-2 Regulating Valve

The Johnson Controls V46AL-2 is a heavy-duty, direct-acting pressure actuated water regulating valve designed specifically for commercial and industrial refrigeration systems. Built with a robust 1" cast iron body and a rust-resisting finish, this modulating water valve is engineered to maintain consistent head pressure by regulating the flow of water or glycol to a water-cooled condenser. The internal pressure-balanced design utilizes nylon-reinforced Buna-N diaphragms to ensure the setpoint remains stable despite sudden fluctuations in supply water pressure.

This 1" union sweat water valve features a wide opening point range of 70 to 260 PSI, allowing technicians to fine-tune system performance for various non-corrosive refrigerants. The included 48" Style 46 pressure element comes equipped with a 1/4" flare nut for reliable high-side connections. Designed for high-demand environments, the V46AL-2 eliminates close-fitting sliding parts in the water passages to prevent water hammer and minimize scaling. The take-apart construction allows for in-line servicing and component replacement without the need to pump down the entire refrigeration circuit, drastically reducing downtime for maintenance crews.

• Consistent Head Pressure: Direct-acting modulation ensures precise water flow control based on refrigerant pressure increases.
• Optimized Compatibility: Suitable for standard non-corrosive refrigerants and compatible with open or closed loop water/glycol systems.
• Serviceability: Features an accessible range spring and take-apart design for quick manual flushing and internal repairs.
• Durability: Cast iron body with aluminum bronze seats and brass internal components for long-term operational stability.
• Vibration Resistance: Pressure-balanced architecture protects the range spring from direct water contact and hydraulic shock.

What is the maximum water supply pressure for the V46AL-2?
This valve is rated for a maximum water supply pressure of 150 psig and can withstand water temperatures up to 170°F (77°C).

Can this valve be used for salt water or ammonia applications?
This specific model is a commercial cast iron type intended for non-corrosive refrigerants. For salt water or corrosive environments, maritime models with monel trim or ammonia-specific elements should be utilized.

How do I adjust the opening point?
The valve is factory-set but can be adjusted using the square head adjusting screw. Turning the screw counterclockwise raises the opening point, while turning it clockwise lowers it.

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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.