There are significant differences between constant wattage heating cables and self-regulating heating cables in several aspects. Here are their main differences:
The working principle is that the current passes through the internal heating resistance wire, which generates heat. The protective layer on the surface tightly combines the heater with the pipe wall, forming a stable heating environment to achieve heating and insulation effects.
The power output of the constant wattage heating cable is constant and does not change with external environments, insulation materials, or the material being heated. Its power output or stoppage is usually controlled by a temperature sensor.
The core material of the self-regulating heating cable is PTC semi-conductive plastic, whose resistance value increases correspondingly with temperature rise. When the temperature rises to a certain value (threshold temperature), the resistance suddenly increases sharply, thereby blocking the current and stopping heating; when the temperature is below the threshold temperature, the resistance of the PTC material automatically decreases, allowing the current to pass and continue heating.
The self-regulating heating cable can automatically sense the ambient temperature and adjust the heating power accordingly, without the need for additional devices.
Efficient and energy-saving: The power ratio is precise, which can effectively reduce energy waste and lower energy consumption costs.
Safe and reliable: Designed, installed, and maintained by professional technicians, ensuring the safety and reliability of the circuit.
Wide temperature range: Suitable for heating and insulation in different environments, able to withstand a temperature range of -50℃~150℃.
Easy installation: Installation and maintenance are very simple and can be operated according to the instructions.
Automatic adjustment: Capable of automatically adjusting output power according to the temperature changes of the heated system.
Energy-saving: Due to its automatic adjustment function, it avoids excessive energy consumption.
Easy installation: Can be cut to any length or extended within a certain range, and allows multiple crossovers without concerns of hotspots and burning.
Long lifespan: The automatic adjustment and self-protection mechanism extend its service life.
Mainly used in heating and insulation occasions requiring constant power output, such as in oilfield equipment, pipelines, storage tanks, and chemical equipment.
Also suitable for heating and insulation in forest fire prevention, livestock farming, heating pipes, drainage pipes, and outdoor pipes.
Suitable for various heating and insulation occasions requiring automatic temperature adjustment, such as winter antifreeze for industrial and domestic water pipes, insulation and heating of liquid transport pipelines in industrial and mining enterprises.
Also commonly used in urban fire protection systems for winter antifreeze, insulation, and heating of gas and liquid storage tanks in industrial and mining enterprises.
In summary, constant wattage heating cables and self-regulating heating cables have significant differences in working principles, performance characteristics, and application scenarios. The choice of type of heating cable depends on specific application requirements and environmental conditions.
EN
ja 
ko 
fr 
de 
es 
it 
ru 
pt 
ar 
vi 
