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- Self-regulating Electrical Heating Cables
- Super High Temperature Self-regulating Heating Cable
- GWK2(II) Self-Regulating Heating Cable
GWK2(II) Self-Regulating Heating Cable
Product Model:
1. Construction Type
2. Voltage class
3. Temp.control heating cable
4. Temp. grade
5. Nominal power
Temperature grade: high temperature (G) series
Structure type: basic type (J), shielded explosion-proof type (P), protective type (F) explosion-proof protection type (PF), explosion-proof and anti-corrosion type (PF2, PF46)
Voltage level: 220V, 380V
10°C nominal power: 45W/m, 55W/m, 65W/m, 75W/m
Explosion-proof mark: ExellT4 Gc
Product Description:
The Huaning GWK2(II) Self-Regulating Heating Cable is designed for freeze protection and high process temperature maintenance of metal and non-metal pipes and vessels and equipment where steam cleaning is required.
The unique PTC feature of GWK2(II) self-regulating core elements adjust its heat output in response to the surrounding temperature along the entire circuit, delivering more heat where and when required. This self-regulating feature also serves to prevent overheating, even in cases where GWK2(II) cables overlap Another benefit of the cable is the ability to cut to length in the field, completed with HUANING system connection kits for quick and convenient installations.
GWK2(II) heating cable system is certified for ordinary and hazardous areas with maximum maintain temperature of 300°F(150°C) and intermittent exposure temperature of 482°F(250°C) Use of HUANING connection kits for GWK2(II) installation is required to comply with system approval, ensuring safe operation and reliable thermal performance.
Structure of Product:
(1) Bus wire: 19 x 0.32, 19 x 0.41
(2) Heating matrix: ordinary PTC, flame retardant PTC, fluorine-containing PTC
(3) Insulation jacket: modified polyolefin, flame retardant polyolefin, fluorinated polyolefin, perfluorinated material.
(4) Braid layer: tinned copper wire braid or other metal wire braid, covering density > 75%.
(5) Out jacket: fluorinated polyolefin, perfluorinated material.
Specification:
| Max. Intermittent Exposure Temp. | 250°C |
| Max.Maintain or Continuous Exposure Temp. | 150°C |
| Supply Voltage | 100-120V or 200-277VAC |
| Output Wattage | 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65W/M (@10°C on pipe) |
| Bus wire | 16 AWG |
| Min. Bending Radius | 30mm @20°C, 50mm @-40°C |
| Min. Installation Temperature | -60°C |
| Min. Start-up Temperature | -40°C |
| Maximum Circuit Breaker Size | 40A |
| Outer Jacket Color | Red |
HUANING offers system components for power connections, splice or tee connections and end terminations to ensure proper functioning of the products and comply with warranty and approvals requirements.
For easier installation and safe operation, use of substituted parts are not recommended. Please contact HUANING for more information on system components.
Nominal Power Output Ratings on Insulated Metal Pipes at 230 V
GWK Power-Temperature Characteristics
Nominal Power Output Ratings on Insulated Metal Pipes at 230 V
[Note]
1. Thermal outputs above are tested in accordance with IEEE 515, with each model on a metallic pipe insulated with a fiberglass insulation.
2. For plastic pipe installations, the power output will be derated by 35% and use aluminum tape install method.
Max. Circuit Length based on Circuit Breaker Selection
| Catalog Number | Start-Up Temperature(°C) | Maximum Circuit Length per Circuit Breaker, meters 230V | |||
| 16A | 25A | 32A | 40A | ||
| 15GWK2(II)-PF | 10 | 143 | 216 | 216 | 216 |
| -20 | 113 | 173 | 216 | 216 | |
| -30 | 105 | 160 | 202 | 216 | |
| -40 | 98 | 149 | 187 | 216 | |
| 30GWK2(II)-PF | 10 | 85 | 130 | 153 | 153 |
| -20 | 70 | 107 | 136 | 153 | |
| -30 | 66 | 100 | 126 | 146 | |
| -40 | 62 | 94 | 118 | 137 | |
| 50GWK2(II)-PF | 10 | 62 | 95 | 122 | 122 |
| -20 | 52 | 80 | 102 | 119 | |
| -30 | 50 | 76 | 95 | 110 | |
| -40 | 47 | 72 | 90 | 104 | |
| 65GWK2(II)-PF | 10 | 46 | 71 | 91 | 106 |
| -20 | 40 | 61 | 78 | 91 | |
| -30 | 38 | 69 | 74 | 86 | |
| -40 | 37 | 56 | 70 | 81 | |
[Note]
1. The circuit lengths are based on trip current characteristics of Type 00 and Type 0CB devices. For devices with different trip characteristics please consult with Shandong Huaning.
2. Use local electrical codes to select appropriate branch circuit breakers.
3. The total length of heating cables connected to the circuit breaker is the sum of all cables that have been so iced or interconnected in parallel. Ensure that the total length do not exceed the maximum circuit length as indicated above.
4. Ground fault protection of equipment is required for heat tracing branch circuits with typical trip level of 30mA. Thermal magnetic breakers are recommended to reduce nuisance tripping.
5. It is recommended to start up the circuits at higher temperatures, when possible, to avoid large start-up or in-rush current which may trip the circuit breaker.
* Technical Information Subject to change without notification
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