WanLian Group introduces foreign technology to produce self-regulating heating cables (also known as self-limiting heating cables internationally) that are widely used in the pipeline and tank heating, anti-foaming, frost prevention, floor heating, and snowmelting from gutters in industries such as oil, construction, food, chemicals, steel, and electricity. These heating cables are suitable for ordinary, hazardous, and corrosive areas.

ZR GWK Flame Retardant Explosion-Proof (High Temperature) Self-Limiting Temperature Electric Heat Tracing Cable

One, Product Model (including self-limiting temperature heating cables of the same series such as GBR, KTV, GXW, GKW, GWK, GBW, DZL, etc.)
(ZR) GWK-J (Flame Retardant) High-Temperature Standard Model: Power 30/100 W/m (10℃), Working Voltage 220V, Usage Length 110m.
(ZR) GWK-F (Flame Retardant) High Temperature Protective Type: Power 30/100 W/m (10℃), Working Voltage 220V, Length of Use 110m
ZR GWK-P( flame-retardant) High Temperature Shielding Type: Power 30/100 W/m (10℃), Working Voltage 220V, Usage Length 110m
(ZR)GWK-PF(Flame Retardant) High-Temperature Shielding Protective Type: Power 30/100W/m (at 10°C), Working Voltage 220V, Usage Length 110m
(ZR) GWK-PF46 (Flame Retardant) High Temperature Shielding Anti-Corrosion Type: Power 30/100W/m (at 10℃), Working Voltage 220V, Length of Use 110m.

For example: 45GWK2-J means: High-temperature Basic Type, 45W output power per meter at 10°C, operating voltage 220V.
ZR65GWK3-PF: Flame-retardant high-temperature shielding protective type, 65W output power per meter at 10°C, operating voltage 380V, with flame-retardant, explosion-proof, and protective features.

II. Product Structure
Copper-core wire: 7×0.50, 19×0.32, 19×0.41
(2) Conductive Plastic Layers: Standard PTC, Flame-Retardant PTC, Fluorinated PTC
(3) Insulation Layer: Modified Polyolefins, Flame Retardant Polyolefins, Fluorinated Polyolefins, Perfluorinated Materials
(4) Shielding Layer: Tin-plated soft round copper wire, coverage density 80%
(5) Jacket Layer: Modified Polyolefin, Flame Retardant Polyolefin, Fluorinated Polyolefin, Perfluorinated Material

II. Technical Specifications
1. Temperature Range: High operating temperature 135±5℃; Surface temperature 150℃; High endurance temperature: Modified polyolefin 155℃, Flame-retardant polyolefin 135℃, Fluorinated polyolefin 180℃, Perfluorinated material 205℃.
2. Application Temperature: Low -40°C, above 0°C for application.
3. Thermal Stability: After 1000 on-off cycles, for a continuous period of 30 days, the cable's heat output remains above 90%.

4. Bend Radius: 12.7mm at 20°C room temperature; 35.0mm at -30°C low temperature.
5. Insulation Resistance: At a cable length of 100m and room temperature of 20°C, using 1000VDC between the shielding layer and the conductor core, after 1-minute摇试, the minimum insulation resistance is 20MΩ.
6. Operating Voltage: 220, 380, 600 volts, etc., both AC and DC compatible; low-voltage products must not be used under high-voltage conditions.

III. Application Scope
(ZR) GWK Flame Retardant and Explosion Proof (High Temperature) Self-Limiting Temperature Electric Heat Tracing (including models in the same series such as GBR, KTV, GXW, GKW, GWK, GBW, DZL, etc.) is widely used in process pipelines, tank heating and insulation, and frost prevention in the petrochemical, steel, electric power, and other industries. It maintains a medium temperature range of 0 to 135℃.
1. The basic electric heating tape is generally used in places without explosion-proof or anti-corrosion requirements, and where the environmental humidity is low.
2. Protective electric heating tapes are generally used in environments that do not require explosion-proof or corrosion-proof protection, but have high humidity levels.
3. Explosion-proof electric heating tapes are generally used in environments that require explosion-proof but not corrosion resistance, with moderate humidity levels.
4. Explosion-proof heating cables are generally used in environments with explosion-proof requirements but no corrosion protection needs, and high humidity.
5. Explosion-proof and corrosion-resistant electric heating tapes are generally used in environments with explosion-proof and corrosion-resistant requirements, and high humidity.
6. If flame retardancy is required for the product, select the corresponding flame retardant series.