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JSA ENGINEERING & SERVICES
THERMOWELL

A Stainless Steel (SS) Thermowell is a protective, pressure-tight metal tube designed to house temperature sensors (RTDs, thermocouples, thermometers). It guards sensors against corrosion, high pressure, and flow-induced vibration, allowing sensor removal without stopping the industrial process. Common materials include SS 304/316, with threaded, flanged, or welded connections

  • Protection: Shields sensors from harsh, abrasive, or corrosive process media.
  • Common Grades: 304 SS (standard) and 316 SS (improved corrosion resistance).
  • Types: Threaded (NPT, BSP), Flanged, or Socket Weld connections.
  • Shapes: Tapered (high strength, fast response), Straight, or Stepped.