Threaded Thermowells Mac-Weld


As a pioneer and global leader in manufacturing Thermowells, Mac-Weld ensures the highest quality and precision in every instrumentation piece they manufacture. Mac-Weld manufactures Threaded Thermowells in a wide variety of process thread sizes and configurations which include, but are not limited to, NPT, NPS, and BSPT.

Manufactured by 

CTH Industrial Controls can provide you with service and start-up assistance for Mac-Weld.



Threaded Thermowells are designed and manufactured 100% in-house and are made to accept standard and custom made thermometers, thermocouples, bulbs and RTD’s.

  • Standard Threaded Thermowells available from stock
  • Custom software for Thermowell design calculations
  • CRN approved Thermowells
  • Various NDT options
  • NACE compliant

Mac-Weld is a pioneer and global leader in the manufacturing of Thermowells, and have consistently offered the highest quality and precision in every piece that has left our plants. Whether made to order or standard configurations, all their products meet or exceed accepted standards.

Material Options: 316 Stainless Steel, 304 Stainless Steel, Carbon Steel, 310 Stainless Steel, 321 Stainless Steel, 347 Stainless Steel, Alloy 20, C-276, Duplex, Incoloy 800, Inconel 600, Inconel 625, Inconel 825, Monel 400, and Titanium (More available upon request)

Industries: Chemical industry. Process technology. Apparatus construction.