Tubular heating elements are constructed from a metal tubular sheath of material selected to suit a given application. This sheath, surrounds a helical coil of nickel-chrome resistance wire, centred and tightly compacted by an electrical insulator and heat transfer medium of magnesium oxide (MgO). This gives a resistance spiral that can be varied in heat concentration and cold length sections, protected from atmospheric corrosion and mechanical abuse. Mounting bushes, header boxes, flanges etc. can be fitted to suit all installation situations.
Hot Tags: industrial air coil fin tubular heater, China, suppliers, manufacturers, factory, wholesale, price
