Description
The Johnson Controls V47AB-4 is a direct acting, temperature actuated water regulating valve engineered for dependable heating system performance. Built from durable cast brass, 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
- Heating point range: 160°F to 230°F for precise temperature-based flow control
- Cast brass body construction for long-lasting corrosion resistance and durability
- 6-foot capillary tube for flexible remote bulb placement
- Style 4 sensing bulb: 11/16″ diameter x 3-1/4″ long for accurate temperature sensing
- 1/2″ NPT inlet/outlet connections for easy integration into standard piping systems
- 1/2″ NPT external fitting included
Specifications
- SKU: V47AB-4
- Brand: Johnson Controls
- Connection Size: 1/2″ NPT
- Temperature 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
- External Fitting: 1/2″ NPT
- Actuation Type: Direct Acting
Application
The V47AB-4 is ideal for use in commercial and residential hydronic heating systems where automatic, temperature-driven water flow regulation is required. Its self-contained, direct acting design makes it a reliable choice for boiler water temperature control, heat exchanger circuits, and other heating applications that demand consistent performance across a wide temperature range.
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