Sample Cooler Temperature Control
The US/S-XR helps maintain desired sample and process temperatures while reducing the risk of overheating. Designed for sample coolers, process analyzers, and related sample conditioning systems, this cooling media control valve can regulate compatible fluids such as water and glycol.
Its stainless-steel, threaded configuration provides a durable solution for industrial cooling applications with straightforward installation and a long service life.
For heating applications the direct-acting, US/S-X can be used to regulate flow to protect a system or process from freezing
Design Features
- Exclusive Thermoloid® paraffin wax thermal actuator
- Compact low mass – fast response
- Ram-type plug for reliable shut off
- All stainless-steel construction
- Narrow temperature band
- Unaffected by pressure variations
Typical Applications
The US/S-XR provides temperature-based cooling media control for sample conditioning and process analyzer systems where controlled sample temperatures are required.
- Sample cooler temperature control
- Process analyzer cooling
- Sample conditioning systems
- Process sampling systems
- Cooling water and glycol flow control
Technical Documents
Specifications
- Sizes: ½”, ¾”
- Maximum Operating Pressure: 200 PSIG (13.8 bar)
- Maximum Valve End Temperature: 388°F (198°C)
- Maximum Sensing End Temperature: Range 150ºF (83.3ºC) over set-point with a limit of 300ºF (149ºC)
Ordering
| Part Number | Description |
| 664 – 000000 – XXX | 1/2” US/S-XR-S |
| 664 – 010000 – XXX | 1/2” US/S-XR-S-BAND2 |
| 665 – 000000 – XXX | 3/4” US/S-XR-S |
| 665 – 010000 – XXX | 3/4” US/S-XR-S-BAND2 |
Ordering & Configuration Notes
- Full open temperatures “XXX” available: 040°F, 045°F, 050°F, 060°F, 070°F, 075°F, 085°F, 095°F, 100°F, 105°F, 110°F, 115°F, 120°F, 125°F, 130°F, 140°F, 150°F, 160°F, 170°F, 175°F, 180°F, 190°F, 200°F, and 210°F.
- Closing temperature is typically 10°F below opening temperature for Reverse Acting valves.
- Includes Band-O-Let fitting.
- Buna is standard; Viton, EPDM, and Kalrez are available. Consult our product team for ordering information.
US/S-XR Installation
The US/S-XR sample cooler temperature control valve can be installed with the valve’s thermal actuator immersed in the process line or mounted non-invasively to the piping with the optional Band-O-Let fitting. In surface-sensing installations, the actuator responds to pipe temperature through thermal conduction.
How the US/S-XR Valve Works
As a reverse-acting valve, the US/S-XR modulates open if the sensed temperature rises to the valve’s set point temperature, allowing cooling fluid to flow. As the process cools, the valve modulates toward the closed position, reducing cooling flow as the desired temperature range is restored. The closing temperature is typically 10°F below the opening temperature.
