Description
Johnson Controls V48AF-2 Three-Way Pressure Actuated Water Regulating Valve
The Johnson Controls V48AF-2 is a heavy-duty, cast iron three-way pressure actuated water regulating valve engineered for reliable performance in commercial HVAC and refrigeration systems. Designed to automatically regulate condenser water flow in response to refrigerant head pressure, this valve helps maintain optimal system efficiency and protects compressors from high-pressure conditions.
Key Features
- 1-1/2″ NPT connections for straightforward installation into standard piping systems
- 145 to 190 PSI opening point range on the normally closed (NC) side for precise pressure-actuated control
- Cast iron body construction for durability and long service life in demanding commercial applications
- Three-way valve design allows simultaneous modulation of supply and bypass water flow
- 1/4″ external flare fitting pressure element connection (Style 5) for secure, leak-resistant sensing line attachment
- Pressure element style 5 provides accurate refrigerant pressure sensing to drive valve actuation
How It Works
The V48AF-2 senses refrigerant head pressure via its 1/4″ external flare fitting pressure element. As system pressure rises into the 145–190 PSI operating range, the valve modulates condenser water flow to bring head pressure back within acceptable limits. The three-way configuration allows water to be directed through the condenser or bypassed, giving the system precise thermal management capability.
Specifications
- SKU: V48AF-2
- Brand: Johnson Controls
- Connection Size: 1-1/2″ NPT
- Body Material: Cast Iron
- Valve Type: Three-Way, Pressure Actuated, Water Regulating
- Normally Closed Side Opening Point Range: 145 to 190 PSI
- Pressure Element Fitting: 1/4″ External Flare
- Pressure Element Style: Style 5
Applications
- Commercial refrigeration condenser water regulation
- HVAC chiller and water-cooled condenser systems
- Head pressure control in water-cooled refrigeration equipment
- Industrial process cooling water control
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