These thermocouples are used to measure outer termperature in furnace tube walls.

Hot welding point can be supplied squashed in order to be placed directly onto tube wall.

We advise to use preferently skin-points with welded junction on a metalic plate (of appropiate type for a possible weld with tube material) . in this way, the plate will be welded to the tube, which is an easier operation than directly welding the junction.

Determination of the number and diameter of expansion turns is fundamental for the duration of a skin-point. it is necessary to know the maximum expansion of each tube planes related to the walls, as well as operation temperatures. the material type of the sheath is selected depending on the ambient conditions (oxydant or reductor, as well as temperature, it will be tested in previous tests)