Johnson Controls V46BA-2 Regulating Valve

The Johnson Controls V46BA-2 is a heavy-duty, direct-acting water regulating valve engineered for precision head pressure control in maritime and salt-water applications. Built with a 3/8" NPT connection and a maritime type cast naval bronze body, this valve features Monel interior parts to resist the corrosive effects of sea water and harsh environments. Designed for use with non-corrosive refrigerants, it operates on a wide 70 to 260 PSI opening point range, ensuring stable condensing temperatures by modulating water flow in response to refrigerant pressure changes.

This model serves as the direct replacement for V46BA-1, though technicians should note that the 30" capillary features a Style 34 sweat connection, requiring a manual flare during installation if replacing older flare-style units. The pressure-actuated bellows design provides immediate response to pressure fluctuations without the hysteresis common in sliding-part valves. The take-apart construction allows for streamlined maintenance or internal part replacement without breaking the refrigerant lines or pumping down the system, making it a reliable choice for high-uptime marine refrigeration racks.

• Corrosion Resistance: Naval bronze body and Monel trim ensure longevity in salt-water cooling loops.
• All-Range Versatility: The 70-260 PSI range covers most standard high-side pressure applications for non-corrosive refrigerants.
• Serviceability: Internal components can be accessed and replaced without removing the valve from the piping system.
• Anti-Hammer Design: Engineered to minimize water hammer and chatter, protecting the integrity of the heat exchanger and plumbing.
• Consistent Modulation: Direct acting logic opens the valve on pressure increase to maintain optimal head pressure.

Is the V46BA-2 compatible with ammonia systems?
No, this specific model is designed for non-corrosive refrigerants. For ammonia applications, a stainless steel bellows (Style 15) is required.

How do I adjust the opening point?
Use a standard service wrench to turn the range adjustment screw: clockwise to lower the opening point and counterclockwise to raise it.

Can this valve be mounted horizontally?
For optimal performance and to prevent oil or sediment buildup in the bellows, it is recommended to mount the valve vertically with the pressure element facing downward.

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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.