Description
The Johnson Controls V47AT-1 is a direct acting, temperature actuated water regulating valve engineered for reliable heating system performance. Built with a rugged cast iron body and a 2-1/2″ ASME flange connection, this valve automatically modulates water flow in response to temperature changes, eliminating the need for an external power source and simplifying installation in hydronic and process heating applications.
Key Features
- Direct acting, temperature actuated operation — no external power required
- Heating point range: 115°F to 160°F for precise temperature-based flow control
- 2-1/2″ ASME flange body connection for secure, leak-resistant installation
- Cast iron body construction for durability in demanding hydronic environments
- 6-foot capillary tube for flexible bulb placement away from the valve body
- Style 4 sensing bulb: 11/16″ diameter x 10″ long for accurate immersion sensing
- 1/2″ NPT external fitting for straightforward system integration
How It Works
The V47AT-1 uses a remote sensing bulb connected via a 6-foot capillary tube to monitor water temperature at the point of measurement. As the sensed temperature rises within the 115–160°F range, the valve modulates to regulate flow accordingly. This self-contained, direct acting design responds immediately to temperature changes without relying on electricity or pneumatic controls.
Specifications
- SKU / Model: V47AT-1
- Brand: Johnson Controls
- Valve Body Material: Cast Iron
- Connection Type: 2-1/2″ ASME Flange
- Operation Type: Direct Acting, Temperature Actuated
- Heating Point Range: 115°F – 160°F
- Capillary Length: 6 feet
- Bulb Style: Style 4
- Bulb Dimensions: 11/16″ diameter x 10″ long
- External Fitting: 1/2″ NPT
Typical Applications
- Hydronic heating systems requiring automatic water flow regulation
- Boiler and heat exchanger circuits
- Industrial and commercial process heating
- Systems where electric or pneumatic actuators are not practical
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