Description
Spirax-Sarco 70873 Temperature Actuated Water Regulating Valve
The Spirax-Sarco 70873 is a direct acting, temperature actuated water regulating valve engineered for precise water flow control in HVAC and hydronic systems. Built with a durable cast brass body and a 1/2″ NPT connection, this valve responds directly to sensed temperature changes — no external power source required — making it a reliable, self-contained solution for a wide range of commercial and industrial applications.
Key Features
- Direct acting, temperature actuated operation — no external power required
- Cast brass body construction for durability and corrosion resistance
- 1/2″ NPT inlet/outlet connections for standard piping compatibility
- Cross ambient point temperature range: 40°F to 85°F
- Includes 4-foot capillary for remote bulb sensing flexibility
- Style 1 sensing bulb: 11/16″ diameter x 10″ long
- Does not include 1/2″ external NPT fitting (sold separately)
Specifications
- SKU: 70873
- Brand: Spirax-Sarco
- Connection Size: 1/2″ NPT
- Valve Type: Direct Acting, Temperature Actuated Water Regulating
- Body Material: Cast Brass
- Temperature Range: 40°F to 85°F (Cross Ambient Point Range)
- Capillary Length: 4 feet
- Bulb Style: Style 1
- Bulb Dimensions: 11/16″ diameter x 10″ long
- External NPT Fitting: Not included
Application
The Spirax-Sarco 70873 is ideal for use in water-cooled condensers, compressors, oil coolers, and other HVAC/R and process equipment where automatic water flow regulation based on temperature is required. The remote sensing bulb and capillary allow the valve to respond accurately to temperature conditions at a distance from the valve body, providing flexible installation options in tight or complex mechanical spaces.
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