The reverse-actingUS / S-XR(Ultra Surface Sensing) sample cooler temperature control valve may 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. This allows the thermal wax actuator to be in contact with the process directly or through thermal conduction to regulate the flow of the cooling media.

If the fluid is above the desired set-point temperature, the valve will open allowing cooling fluid to flow until the process flow temperature drops to 10°F below the set-point. Once this occurs the valve will modulate closed again providing an optimal environment for the process.



These compact self-contained sample cooler temperature control valves can be used to control cooling media to economically remove heat from equipment or a process. In general, they can be used whenever accurate, low-cost control is required, but a common application is controlling cooling media flow to a sample cooler in response to sample temperature.

TheUS / S-Xdirect-acting valve can also be used to regulate the flow of heating media to prevent a process from overheating.

Design Features

  • Exclusive self-actuating Thermoloid® wax blend thermal actuator
  • 紧凑的低质量 - 快速响应
  • RAM型插头可靠关闭
  • All stainless-steel construction
  • Narrow temperature band
  • Unaffected by pressure variations


  • Self-operating – no external power source required
  • Maintains optimal process temperature
  • 防止过程过热
  • 放电最少量的介质进行温度控制
  • Long service life
  • 快速简便




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


  1. 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.
    1. Closing temperature is typically 10°F below opening temperature for Reverse Acting valves.
  2. Includes Band-O-Let fitting.
  3. Buna是标准的;Viton,Epdm和Kalrez可用。咨询我们的产品团队if you need different materials.


  • Sizes: ½”, ¾”
  • 最大工作压力:200 psig(13.8 bar)
  • Maximum Valve End Temperature: 388°F (198°C)
  • Maximum Sensing End Temperature: 150°F (66°C) over set-point – limit 300°F (149°C)


US / S-XR (Ultra Sense Control Valve) Product Sheet
US / S-XR Installation and Maintenance Instructions
Instrument and Process Temperature Control Brochure