Compression Fitting Type Thermocouples

Compression Fitting Type Thermocouples have a plain sheath with no permanently attached fittings. They are usually mounted with the use of a compression fitting which is supplied separately. Tip temperatures can be as high as 480ºC (900ºF) for fiberglass insulated wire, 250ºC (500ºF) for Teflon insulated wire. For higher temperatures see the section on Mineral Insulated Thermocouples.

Ordering Code


Term Descriptions*:




* Note: Illustrations are representations of the general appearance of the materials used. Actual material may differ somewhat from the illustrations.

Compression Fittings

Tube O.D. Thread Size Material Part No.
1/8" 1/8-27 NPT Brass 144-0012
1/8" 1/8-27 NPT Stainless Steel 144-0020
3/16" 1/8-27 NPT Brass 144-0009
3/16" 1/8-27 NPT Stainless Steel 144-0022
1/4" 1/4-18 NPT Brass 144-0014
1/4" 1/8-27 NPT Stainless Steel 144-0024
.260~.275" 1/4-18 NPT Teflon 144-0037