Johnson Controls V46BC-2 Valve

The Johnson Controls V46BC-2 is a professional-grade pressure actuated water regulating valve specifically engineered for maritime HVACR applications. This 3/4 inch NPT direct-acting valve is built with a cast naval bronze body and Monel interior parts to ensure maximum corrosion resistance in harsh saltwater environments. It effectively modulates water flow to maintain constant refrigerant head pressure in water-cooled condensers, supporting non-corrosive refrigerants within a versatile 70 to 260 PSI opening point range.

Designed for field reliability, the V46BC-2 features a pressure-balanced design that remains unaffected by fluctuations in water supply pressure. The 30 inch capillary with a Style 34 sweat connection provides a secure interface for high-side pressure sensing. Its take-apart construction allows contractors to access interior components for maintenance without removing the valve from the piping or pumping down the system. Identical in performance to the V46BC-2C, this maritime water regulating valve is the standard for technicians requiring a rugged, long-lasting solution for shipboard or coastal refrigeration systems.

• Superior Corrosion Resistance: The naval bronze and Monel construction prevents pitting and failure caused by salt water exposure.
• Stable Head Pressure: Precisely modulates flow to match cooling demand, preventing compressor short-cycling and optimizing system efficiency.
• Serviceable Design: Take-apart construction simplifies internal seat and diaphragm inspections, reducing downtime during routine service.
• Pressure-Balanced Performance: Maintains an accurate setpoint regardless of sudden changes in water inlet pressure.
• No Sliding Parts: Minimizes the risk of sticking or hanging up due to sediment or mineral deposits in the water passage.

Is this valve compatible with seawater?
Yes, the V46BC-2 is a maritime type valve specifically designed for saltwater use, featuring Monel internal trim to withstand the aggressive nature of marine environments.

What is the difference between direct-acting and reverse-acting models?
This is a direct-acting valve, which means it opens on a pressure increase. This action is standard for regulating condenser cooling water to reject heat more effectively as refrigerant pressure rises.

Can I install this on a potable water system?
No, this valve is constructed from copper alloys that may contain lead and is intended for refrigeration and HVAC water-regulating applications only. It should not be used for drinking water systems.

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.