V48AC-2C Johnson Controls Water Regulating Valve

Overview

The Johnson Controls V48AC-2C is a three-way, pressure-actuated water regulating valve designed for commercial HVAC and refrigeration systems. It automatically modulates cooling water flow to a condenser or a bypass line to maintain optimal refrigerant head pressure. The valve features a pressure-balanced design that makes its setpoint independent of inlet water pressure and allows it to withstand severe hydraulic shock waves.

Features

• Pressure-balanced design ensures performance is independent of liquid inlet pressure.
• Rubber sealing diaphragms protect the range spring and guides from water, sedimentation, and corrosion.
• Offers easy manual flushing without affecting the valve’s pressure adjustments.
• Provides smooth pressure modulation and quick opening characteristics.

Specifications

• Connection Size: 3/4 inch NPT threaded inlet and outlet
• Pressure Range: 145 to 190 PSI opening point range on the normally closed side
• Capillary Length: 30 inch copper capillary tube
• Pressure Element: Style 45 with 1/4 inch flare nut
• Body Material: Cast brass
• Maximum Flow Rate: 22 GPM
• Maximum Operating Pressure: 150 psi
• Maximum Operating Temperature: 194 degrees Fahrenheit

Applications

• Ideal for air-cooled and water-cooled refrigeration and HVAC systems.
• Designed for condensing units cooled by atmospheric or forced draft cooling towers.
• Suitable for single or multiple condenser hook-ups to regulate water flow based on refrigerant head pressure.