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Ashcroft Threaded Thermowell
The Ashcroft® threaded thermowells are utilized when pressure, high velocity and corrosive process media exist.
This serves to isolate and protect the sensing instrument, and permits removal of a sensing instrument without shutting down the process. A perfect solution for protecting the process and extending product service life.
Ashcroft Threaded Thermowell


Process connection
1/2", 3/4" and 1" NPT
Bore size
.260", .385"


  • Straight, Stepped or Tapered designs
  • One piece bar stock
  • Wide selection of sizes, material and dimensions
  • Stamped with date code, material and heat numbers
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