Thermowells are protective sheaths used to allow for the safe installation and removal of temperature instruments.

Thermowells also protect the instrument against process pressures and are offered in wide variety of materials to resist corrosion. 

Marsh Instruments manufactures thermowells in threaded, flanged, clamped and weld-in configurations in multiple sizes to fit any application.

Specifications

Materials of Construction

  • Brass
  • 306 Stainless Steel
  • 316 Stainless Steel

U Insertion Length

  • 2.5" to 22.5"

Instrument Connection

  • 1/2" Standard

Process Connection

  • 1/2", 3/4", 1" NPT

Shank

  • Stepped - Standard
  • Straight, Tapered Optional

T Lag

  • 2-3/4"
  • 3-3/4"
  • 4"

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