Tubeskin thermocouple assembly

The XTRACTO-PAD ® enables the measurement of a tube within a combustion furnace to be measured accurately. The XTRACTO-PAD ® is a product developed by Gayesco International Inc. The expertise, knowledge and products of Gayesco are now part of the WIKA Group.

The XTRACTO-PAD ® is a thermocouple design utilizing a guide channel and patented heat shield. A removable contoured thermocouple sensor made from mineral-insulated cable (sheathed cable) is installed in the guide channel and heat shield. It consists of a metal outer sheath, which contains the insulated internal leads, compressed within a high-density ceramic composition. The internal leads are made from thermo material. The material of the outer sheath can be selected to match the application. At one end of the sheathed cable, the internal leads are welded together to form an insulated (ungrounded) or non-insulated (grounded) measuring point.

This unique thermocouple design allows for weldable parts (guide channel, heat shield, and tube clips) to be installed by the manufacturer of the heater / boiler or even by the tube manufacturer in the case of specialty furnace tubes.