Defrosting of the cooler Refrigerators, freezers, evaporators, unit coolers, condensers, etc. all employ heating tubes.
A spiral of resistive wire squeezed and covered by a metallic sheath, immersed in MgO, is used in tubular heating elements, which employ well-established and consolidated technology. Depending on the required level of heating and the available footprint, tubular heating elements can be molded into a variety of geometries after annealing.
After the pipe has shrunk, the two terminals accept a specially produced rubber pressing sealing, allowing the electrical heating pipe to be used normally in cooling equipment and to be shaped anyway the customers choose.