The Johnson Controls V47AT-3 is a temperature-actuated modulating valve for 2-1/2″ ASME flange cross-ambient applications. Its 11/16″ x 43″ sensing bulb provides responsive control over water flow in varying conditions.
Technical Specifications
- Part Number: V47AT-3
- Series: V47 Temperature Actuated Modulating Valve
- Valve Type: Direct Acting, Commercial
- Control Action: Opens on Temperature Increase
- Connection: 2-1/2″ ASME Flange
- Body Material: Cast Iron
- Temperature Range: 75 to 115°F
- Maximum Bulb Temperature: 135°F
- Bulb Size: 11/16″ x 43″
- Capillary Length: 6 ft
- Bypass Orifice: 0.125″
Key Features and Functionality
- Non-Fouling Design: Eliminates close-fitting parts to reduce clogging risk.
- Dry Spring Housing: Keeps the range spring isolated from water contact.
- Inline Flushing Capability: Enables manual flushing without removing the valve.
- Free-Moving Components: Prevents sticking and maintains modulation accuracy.
- Stable Under Pressure: Maintains adjustment regardless of inlet pressure.
Compatible Components and Related Parts
- Seat Repair Kit: STT18A-601R
- Replacement Sensing Element: SET29A-606R
Industry Applications
- Heat Exchangers: Regulates water flow for controlled engine cooling.
- Air Compressors: Adjusts jacket water to prevent overheating.
- Hydraulic Systems: Stabilizes oil temperature with cooling flow.
- Printing Machines: Controls the water temperature in the ink circulation system.
- Swimming Pools: Regulates heating water for balanced operation.
Compliance and Approvals
- Conforms to Johnson Controls and industry requirements
- ASME Flange Connection
Installation and Operational Notes
- Flush liquid lines to clear debris before installation.
- Connect piping in the direction of the valve body flow arrow.
- Keep bulb and capillary free from metal contact.
- Tighten the gland nut seal securely near the bulb fitting.
- Mount the valve vertically with the bellows facing downward.
Series Information
V47 Series Temperature Actuated Valve
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