Johnson Controls V48AE-2 Valve

The Johnson Controls V48AE-2 is a heavy-duty 1-1/4 inch NPT three-way pressure actuated water regulating valve engineered for high-demand condenser cooling applications. Specifically designed for systems using high-pressure refrigerants, this cast iron water valve features an opening point range of 145 to 190 PSI on the normally closed side. The V48AE-2 (functionally identical to the V48AE-2C) utilizes a Style 45 pressure element equipped with a 30-inch capillary and a 1/4-inch flare nut for secure integration into the high-side refrigerant line. As a three-way modulating valve, it effectively maintains constant head pressure by bypassing water to the bypass circuit when cooling demand fluctuates, ensuring stable compressor operation. This commercial HVAC water regulator is built for durability in harsh mechanical rooms, providing precise head pressure control without the need for external power or complex electrical actuators.

Key Benefits:

• Broad Compatibility: Direct replacement for the V48AE-2C, ensuring seamless field installation in existing 1-1/4" NPT piping.
• Optimized Pressure Range: The 145-190 PSI range is specifically calibrated for condenser water regulation in systems requiring higher refrigerant head pressures.
• Robust Materials: The cast iron body and reinforced diaphragms are designed to withstand high-velocity water flow and provide long-term reliability in industrial settings.
• Balanced Plug Design: Minimizes the impact of varying water inlet pressures on the modulating control valve accuracy.
• Simplified Commissioning: Features a 30-inch capillary for flexible mounting and accessible pressure-actuated valve adjustment.

Common Questions:

What is the difference between the V48AE-2 and V48AE-2C?
Technically, the models are identical in specifications, materials, and performance parameters, making them interchangeable in all 1-1/4" NPT pressure-actuated applications.

Can this valve be used with salt water?
No, the cast iron construction of the Johnson Controls V48 series is designed for fresh water; for sea water applications, a maritime-grade bronze body is required.

How do I adjust the opening point?
The opening point is field-adjustable by turning the range screw on the refrigerant water regulating valve to meet the specific head pressure requirements of the condensing unit.

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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.