Description
The Johnson Controls V47AC-4 is a direct acting, temperature actuated water regulating valve engineered for reliable heating system performance. Constructed with a durable cast brass body, this valve automatically modulates water flow in response to temperature changes — eliminating the need for external power and simplifying installation in a wide range of hydronic and HVAC applications.
Key Features
- Direct acting, temperature actuated operation — no external power required
- Cast brass body construction for long-lasting durability and corrosion resistance
- 3/4″ NPT main valve connection for standard piping compatibility
- 160°F to 230°F heating point range for precise temperature-based flow control
- 6-foot capillary tube provides flexible bulb placement relative to the valve body
- Style 4 sensing bulb: 11/16″ diameter x 3-1/4″ long for accurate temperature sensing
- 1/2″ NPT external fitting for easy system integration
Specifications
- SKU: V47AC-4
- Brand: Johnson Controls
- Valve Connection Size: 3/4″ NPT
- External Fitting: 1/2″ NPT
- Heating Point Range: 160°F – 230°F
- Body Material: Cast Brass
- Capillary Length: 6 feet
- Bulb Style: Style 4
- Bulb Dimensions: 11/16″ diameter x 3-1/4″ long
- Actuation Type: Direct Acting
Applications
- Hydronic heating systems
- Water temperature regulation in commercial and industrial HVAC
- Boiler and heat exchanger water flow control
- Systems requiring automatic, self-contained temperature-based valve modulation
The V47AC-4 is part of Johnson Controls’ trusted V47 series of temperature actuated valves, designed to deliver consistent, self-contained control in demanding heating environments. Its robust cast brass construction and wide temperature sensing range make it an ideal solution for contractors and engineers seeking dependable, low-maintenance water regulation.
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