It consists of heating core and sheath. The heating core adopts high-temperature resistant alloy electric heating wire as heat source, high-temperature resistant ceramics as insulation medium, and the sheath is made of cold-drawn seamless steel tube or stainless steel.

Flange connection with oil tank body. The jacket separates the heating core from the heated oil. When replacing the electric heater, the oil in the oil tank does not need to be removed.

With the heated oil contact area, small surface power, no carbon, oil will not be local high temperature and carbonization. Long service life, safety and reliability.