Weld-In Thermowell

Ashcroft® weld-in thermowell isolates and protects a temperature instrument’s sensing element from pressurized, high velocity and corrosive media. These are typically used where exposed threads may collect contaminants such as in food processing or pharmaceutical production. They ensure longer life and accurate measurement while allowing the sensing instrument to be removed without shutting down the process. A wide selection of materials, sizes and dimensions are available.

Key Features:
  • One piece bar stock construction
  • Stamped with mil traceable material and heat number
  • Testing and certifications including Wake Frequency Calculations per ASME PTC 19.3 TW-2016
  • Standard or customized shank dimensions and styles
  • Wide selection of material options

Process Market:

  • Offshore Oil Rigs
  • Chemical and Petrochemical Plants
  • Water and Wastewater Pressure Control
  • Pulp and Paper
  • Refineries
  • Power

Industrial Market:

  • Turbines and Compressors
  • Equipment Skids

Medical and Life Sciences:

  • Pharmaceutical / Biotech
  • Food and Beverage


Datasheets & Instruction Manuals


Resources & Tools

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What is a lag on a thermowell?

What is the difference between NPSM and NPT instrument connection threads?

Thermowells, what are they?

What Information is needed to run a Wake Frequency calculation of a thermowell?

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