Description
The Johnson Controls V47AE-3 is a direct acting, temperature actuated water regulating valve engineered for precision flow control in hydronic heating systems. Built with a durable cast iron body and a 1-1/4″ NPT connection, this valve responds directly to system temperature changes — no external power required — making it a reliable, self-contained solution for a wide range of commercial and industrial heating applications.
Key Features
- Direct acting, temperature actuated operation — no external power source needed
- Heating point range: 160°F to 230°F for precise high-temperature system control
- Cast iron body construction for long-lasting durability in demanding hydronic environments
- 1-1/4″ NPT inlet/outlet connections for straightforward installation
- Includes 6-foot capillary tube for flexible remote bulb placement
- Style 4 sensing bulb: 11/16″ diameter x 6″ long for accurate immersion temperature sensing
- 1/2″ NPT external fitting for easy system integration
How It Works
The V47AE-3 uses a remote sensing bulb connected via a 6-foot capillary tube to monitor water temperature within the system. As the sensed temperature rises toward the set point, the valve modulates water flow to maintain the desired operating range. This self-contained, direct acting design eliminates the need for additional actuators or control signals, simplifying installation and reducing maintenance requirements.
Specifications
- Model: V47AE-3
- Brand: Johnson Controls
- Body Material: Cast Iron
- Connection Size: 1-1/4″ NPT
- Temperature Range: 160°F – 230°F
- Capillary Length: 6 feet
- Bulb Style: Style 4
- Bulb Dimensions: 11/16″ diameter x 6″ long
- External Fitting: 1/2″ NPT
- Actuation Type: Direct Acting
Ideal Applications
- Commercial and industrial hydronic heating systems
- Boiler water temperature regulation
- Heat exchanger flow control
- Process heating systems requiring temperature-based water flow modulation
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