Johnson Controls V48AL-2 Valve

The Johnson Controls V48AL-2 is a heavy-duty 3-way pressure actuated water regulating valve designed specifically for water-cooled condensers. Engineered with a 1-inch union sweat connection, this valve provides precise head pressure control by diverting water flow to maintain stable refrigerant pressures in fluctuating ambient conditions. Featuring a cast brass body and internal components resistant to corrosion, it is built for long-term reliability in commercial refrigeration and HVAC systems. The integrated Style 46 pressure element includes a 30-inch capillary with a 1/4 inch flare nut, allowing for flexible mounting and robust response times. With an opening point range of 145 to 190 PSI on the normally closed side, this HVAC water regulating valve ensures optimal heat exchange efficiency. Contractors prioritize the V48 series for its non-corrosive construction and its ability to handle high-demand condenser water flow control without constant recalibration, making it a standard OEM replacement part for diverse mechanical cooling applications.

• Precision Pressure Management: Maintains consistent head pressure by modulating water flow, preventing compressor cycling and high-pressure trips.
• Durable Material Composition: The cast brass construction and stainless steel seats provide high resistance to scaling and mineral buildup.
• Simplified Installation: The 1" union sweat ports allow for quick integration into existing copper piping without additional adapters.
• Field Reliability: The pressure-actuated mechanism operates without the need for external power, reducing potential failure points in the system.

What is the maximum water temperature rating for the V48AL-2?
This valve is designed to handle standard condenser water loops with temperatures typically up to 170°F (77°C), ensuring compatibility with most cooling tower and chiller configurations.

Can this valve be used with non-corrosive brines?
Yes, the internal design and cast brass body make it suitable for use with water or non-corrosive brine solutions commonly found in industrial process cooling.

How do I adjust the opening point on the V48 series?
Adjustments can be made by turning the range screw located on the pressure element, allowing for fine-tuning within the 145 to 190 PSI operating window to match specific refrigerant requirements.

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.