Flanged 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. Whether they are custom-made for highly specialized measurements or they are standard configuration, each and every Thermowell is built to meet or exceed accepted standards.

Manufactured by 

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



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

The flanged Thermowells are also available in a large variety of flange sizes, and configurations that include, but are not limited to, raised face, flat face, and ring type joint.

  • All flanges are welded to Code
  • CRN Approved Thermowells
  • Custom Software for Thermowell Design Calculations
  • Various NDT options
  • NACE compliant

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: Petrochemical industry. On & offshore. Plant construction.