Tube Skin Boiler Thermocouples

Boiler and Furnace thermocouples are welded to the tube surface with a V-tip or Pad.  Typical lifetime of these tube skin thermocouples at continuous operation lays between 4 to 6 years. Sheath material for gas fired furnaces  SS310, Inconel 600 or Hasteloy X. For oil fuel fired furnaces best results are achieved with a sheath material Hastelloy X or Haynes HR160 . An additional braided sleeve of Refrex / Fibrefrax protects the sheath from ageing acceleration and prolongs the sensor lifetime.