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Self-monitoring temperature series

The standard color of Shandong Huaning's ZWK self-regulating mid-temperature electric heating belt is brown, main type, shielding explosion-proof type, protection type, explosion-proof type, explosion-proof and anti-corrosion type, and can withstand temperatures up to 125 °C. After checking the heating efficiency, the power of the electric heating belt should remain at 90% of the original value.

Product Details

Application area

Self-regulating heating cables of medium-temperature series are widely used in fire, oil, chemical, metallurgical, electric power, environmental and other industrial plants for heating, heat preservation, anticoagulation and antifreeze of pipelines and storage tanks. The electric heating tape is suitable for common areas, hazardous areas and corrosive zones, after use together with a power explosion-proof distribution box, it is suitable for use in the explosive gas mixture "T4-T6" of the first and second groups. Areas of the plant, which are not directly affected by external forces.






Product Number



Temperature Class: Medium Temperature (Z) row


Design type: Explosion-proof protection type (PF)


Voltage level: 220 V, 380 V
Rated power at 10 °C: 10 W/m, 15 W/m, 20 W/m, 25 W/m, 30 W/m, 35 W/m, 40 W/m, 45 W/m, 50 W/M





Structural Principle



(1) Copper Core Tyre: 19 × 0.32


(2) Heating core belt: ordinary PTC, fluorine PTC (polymer composite conductive material)


(3) Insulation layer: flame retardant polyolefin fluoropolymer.


(4) Shielding layer: Tinned copper wire braid or another metal wire braid with a coating density of ≥ 80%.
(5) Shell layer: Fluoropolymer, Perfluorinated material.




Product Parameters



(1) Standard Color: Brown


(2) Temperature Range: the maximum operating temperature is 90 °C and the maximum sustained temperature is 125 °C (the temperature of the maintained tape core).


(3) Design temperature: minimum-60 °C for fluoride materials.


(4) Starting current: ≤ 0.6 A/m


(5) Thermal stability: After the electric heating belt has passed the thermal performance test, its power should be maintained at 90% of the original value.


(6) Bending radius: 30.4mm at-20 °C, 40.6mm at-30 °C
(7) Insulation resistance: The insulation resistance between the electric heating conductor and the metal shielding layer shall be at least 50 MOM.








(1) Automatic adjustment of output and compensation according to the actual amount of heat required by the electric heating system This is a new generation of energy-saving constant temperature heaters.


(2) It can be arbitrarily shortened or lengthened within a certain range, and it allows multiple overlapping without fear of overheating and igniting.


(3) Low temperature, fast start and uniform temperature, as each part can be automatically adjusted due to the temperature change of the heater part.


(4) Easy installation, easy maintenance, 24-hour service, high automation, low operation and maintenance costs.

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