The electric heating tube-metal tubular electric heater element is made by putting the electric heating element into the metal tube, closely 

filling  the crystal magnesium oxide powder with good heat resistance, thermal conductivity and insulation in the gap part, and then 

processing by several  production processes.

The electric heating pipe has the characteristics of simple structure, high mechanical strength, high thermal efficiency, safety and reliability, 

simple installation and long service life. It is widely used in all kinds of nitrate trough, water trough, oil trough, acid and alkali trough and 

easy melting metal  melting.

At present, there are many brands for producing electric heat pipes, among which the more famous one is Annai Electric Heating - a senior 

old brand with more than 20 years of research and development experience, and his family 's Electric Annai Electric Heating : Today brings 

you to understand.

What is an electric heating tube ? Electric heating tube, simple structure, high thermal efficiency, durable, easy maintenance, can be used for 

a variety of liquid heating, more than 20 years of production experience, reputation, good quality, more trustworthy, favored in the industry.

Then, this issue and Xiao An to look at the relevant knowledge of electric heating pipe ~

First of all, let 's look at the role of magnesium oxide in the electric heating pipe, the electric heating pipe is composed of electric heating 

wire, metal skin and insulating magnesium oxide powder, the material of each link is very important, among them, the quality requirements 

of magnesium oxide powder is more stringent, unqualified or installation is not in place, will directly affect the service life of the electric 

heating pipe. Magnesium oxide powder can be divided into two kinds according to the temperature range, low temperature powder and 

high temperature powder. Low temperature powder can only be at 400 °C.

The following use, generally modified magnesium oxide powder. Magnesium oxide powder for electric heating pipe is configured by 

different thickness of magnesium oxide powder particles according to a certain proportion. As for the selection of the voltage of the electric 

heating pipe, the voltage specifications of the conventional electric heating pipe are : 24V, 36V, 48V, 110V, 220V, 380V ( the voltage here 

refers to ) rated voltage. 

The rated voltage of the electric heating tube refers to the voltage connected to the electric heating tube specified at the design time and 

marked on the electric heating tube shell. Generally speaking, the rated voltage is the specific voltage that the customer requires us to 

process and customize, generally 24V, 48V, 110V, 220V, 380V, etc. Finally, in the process of using the electric heating tube, when the power 

supply is input, the voltage should not exceed 10 % of the rated voltage marked on the various electric heating tubes. If the voltage is lower 

than the rated voltage, the heat generated by the electric heating tube will decrease, thus further affecting the production efficiency.

Warm tips

When the heating pipe of the power supply is powered off due to some primary source, before the power is turned on again, it must be 

noted that the stainless steel electric heating pipe is cooled before the power is connected to the power supply, because each time the 

power is turned on, the heating pipe will be subjected to a secondary electric shock. The grid wire in the pipe will be easily burned off 

under the impact of electricity at high temperature.

When wiring, the stainless steel electric heating pipe terminal should be relatively fastened with two nuts, and should not be too hard, so as 

not to loose the lead screw and damage the stainless steel electric heating pipe.

The above is the relevant knowledge of electric heating pipe. If you are worried about purchasing electric heating pipe, you may as well try 

to resist electric heating.  

Electric heating tube related problems, can find Xiaoan to answer Oh ~