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.

Key Features:

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


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

Threaded thermowells provide safe and reliable pressure measurement, while meeting challenging applications such as:

Process Market:

  • Chemical and Petrochemical Plants
  • Water and Wastewater pressure Control

Medical and Life Sciences:

  • Pharmaceutical / Biotech
  • Food and Beverage