V48AM-2C Johnson Controls Valve

Overview

The Johnson Controls V48AM-2C is a cast brass, three-way pressure-actuated water regulating valve engineered for reliable condenser water flow control in commercial HVAC and refrigeration systems. It is designed to maintain precise refrigerant head pressure by modulating water flow between the condenser and the bypass line, ensuring consistent condensing temperatures and constant water volume to the cooling tower.

Features

• Three-way pressure-actuated configuration for accurate condenser water regulation.
• Pressure-balanced design that isolates the range spring and internal guides from the water stream to prevent corrosion.
• Easy manual flushing mechanism that permits debris removal without disrupting the pressure setpoint.
• Field-adjustable opening point optimized for high-pressure refrigerants.
• Heavy-duty cast brass body construction with a robust pressure element to withstand vibration and hydraulic shock.

Specifications

• Pipe Size: 1-1/4 inch
• Connection Type: Union Sweat
• Actuation Type: Pressure Actuated
• Valve Configuration: Three-Way
• Normally Closed Side Opening Point Range: 145 to 190 PSI
• Maximum Water Supply Pressure: 150 psig
• Maximum Refrigerant Pressure: 320 psi
• Pressure Element: Style 46 with a 30-inch capillary and 1/4-inch flare nut

Applications

• Designed specifically for condensing units utilizing atmospheric or forced draft cooling towers.
• Ideal for water-cooled condensers in commercial air conditioning and refrigeration equipment using non-corrosive refrigerants.
• Used to bypass the condenser during low-load periods or low ambient conditions to optimize system efficiency.