The Johnson Controls V47AA-2C is a temperature-actuated, modulating water valve designed for use in heating applications. It opens proportionally as the sensed temperature increases, providing smooth and precise water flow control to regulate system temperature. With a compact 3/8-inch pipe size and a 160°F to 230°F opening range, the V47AA-2C is well-suited for high-temperature equipment such as compressor jackets, heat exchangers, and process control systems.
Technical Specifications
- Model: V47AA-2C
- Valve Type: Direct-acting, temperature modulating
- Pipe Size: 3/8 inch NPT
- Temperature Range (Opening Point): 160°F to 230°F
- Bulb Size: 11/16 inch diameter x 3-1/4 inch length
- Standard Bypass Orifice Diameter: 0.062 inch
- Capillary Length: 6 feet
- Maximum Operating Pressure: 150 psi
- Maximum Water Temperature: 170°F
- Bulb Well (Ordered Separately): WEL18A-602R
Key Features
- Direct-acting design opens with rising temperature at the sensing bulb
- Compact 3/8-inch valve ideal for small-line applications
- Proportional modulation for accurate thermal regulation
- Built-in bypass orifice allows continuous minimal flow when valve is closed
- Designed for use with a remote sensing bulb for flexible installation
Repair and Replacement Parts
- Seat Repair Kit: STT14A-600R
- Replacement Sensing Element: SET29A-623R
- Bulb Well (Order Separately): WEL18A-602R
Industry Applications
- Compressor cooling and heat jacket systems
- Industrial and commercial heat exchangers
- Process control applications requiring high-temperature water regulation
- HVAC and mechanical room thermal management
Installation & Maintenance Notes
- Install valve vertically with bellows at the bottom and spring cage facing up
- Place the sensing bulb in a representative thermal zone using a compatible well
- Avoid damaging or sharply bending the capillary tubing
- Inspect periodically for sediment, corrosion, or reduced thermal response
- Ensure the sensing bulb is not exposed to temperatures exceeding the valve’s maximum range
We ship this product worldwide! Delivery is normally stock.
Request a Quote now or call us at 1-800-755-2883 for expert assistance.
| Code Number1 |
Pipe Size, in. |
Range (Opening Point) °F |
Bulb Size, in. (Dia length) |
Std Bypass Orifice Dia in. |
Seat Repair Kit | Replacement Sensing Element |
Bulb Well Number Order Separately |
| V47AA-2C | 3/8 | 160 to 230 Heating | 11/16 x 3 1/4 | 0.062 | STT14A-600R | SET29A-623R | WEL18A-602R |