The Johnson Controls V47AC-4C is a direct acting, temperature-actuated water valve with a 3/4″ NPT threaded connection for commercial applications. Its cast brass body withstands water temperatures up to 250°F while controlling flow between 160°F and 230°F.
Technical Specifications
- Part Number: V47AC-4C
- Series: V47 Temperature Actuated Modulating Valve
- Valve Type: Direct Acting, Commercial
- Control Action: Opens on Temperature Increase
- Connection: 3/4″ NPT Threaded
- Body Material: Cast Brass
- Temperature Range: 160 to 230°F
- Maximum Bulb Temperature: 250°F
- Bulb Size: 11/16″ x 3-1/4″
- Capillary Length: 6 ft.
- Standard Bypass Orifice Diameter: 0.062″
Key Features and Functionality
- Open Waterways: No close-fitting parts reduce fouling in passages.
- Isolated Spring: Spring is kept out of water to prevent corrosion.
- Manual Flushing: Allows cleaning access when debris is present.
- Hammer Resistance: Valve design reduces chatter and water hammer.
- Smooth Modulation: Free movement provides stable temperature control.
Compatible Components and Related Parts
- Seat Repair Kit: STT16A-601R
- Replacement Sensing Element: SET29A-627R
- Bulb Well: WEL18A-602R
Industry Applications
- Engine Cooling: Maintains exchanger flow for stable operating temperatures.
- Compressor Systems: Controls circulating water to balance oil and discharge heat.
- Hydraulic Equipment: Regulates coolant to prevent overheating of hydraulic oil.
- Condensers: Conserves water while recovering valuable fluids.
- Printing Machines: Keep paint and ink at a controlled temperature.
- Swimming Pools: Provides consistent water temperature regulation.
Compliance and Approvals
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Conforms to Johnson Controls and industry requirements
Installation and Operational Notes
- Flush liquid lines to clear debris before installation.
- Connect the lines in the direction indicated by the valve.
- Keep bulb and capillary free from contact with metal surfaces.
- Mount the valve vertically with the bellows facing down.
- Avoid installing the bulb above the liquid level or near air pockets.
Series Information
V47 Series Temperature Actuated Valve
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