Longline HTP3F Heating Cables – Tmax 125 °C – L = 2 km
Longline HTP3F is a constant wattage, three-phase series resistance heating cable, designed for freeze protection or process temperature maintenance of medium-length pipelines, up to 2 km. A typical application is freeze protection of above-ground water lines.
This long-distance heating cable reduces the number of required power feeds, thereby lowering costs associated with supply cabling and distribution equipment. Circuits are often powered only at the pipeline ends.
The heating conductors are sized to deliver the required power according to the circuit length. HTP3F heating cables are connected directly to the three-phase supply or via a step-up transformer.
Thanks to its flat-tape construction, the Longline HTP3F provides an extended heating surface, resulting in lower operating temperatures compared to equivalent round conductors. This improves both system safety and service life.
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The HTP3F long-distance constant wattage heating cable provides reliable freeze protection and process temperature maintenance for pipelines up to 2 km in length. Designed for three-phase systems, it combines high thermal efficiency, simplified installation from a single power feed, and consistent performance up to 23 W/m, even at 1000 V AC.
Product Specifications – Maximum Allowable Exposure Temperature (de-energized): 125 °C
Maximum Allowable Exposure Temperature (de-energized) | 125°C |
Minimum Installation Temperature | -40°C |
Power Supply | Up to 1000 V – Three-phase |
Cable Dimensions | HTP3F-CT 25.0 x 7.0mm +/- 0.5mm |
Weight (kg/100 m) | HTP3F-CT - 65.0 kg |
Minimum Bending Radius | 75mm |
Maximum Heated Equipment Temperature (°C)
Nominal Power Output (W/m) | HTP3F | HTP3F-C | HTP3F-CT |
|---|---|---|---|
10 | 112 | 109 | 100 |
15 | 94 | 95 | 85 |
23 | 78 | 80 | 70 |
Surface Temperature Limits in accordance with EN 50014 | |||
The HTP3F constant wattage heating cable is ideal for freeze protection or temperature maintenance of medium to long pipelines, particularly above-ground or buried water lines.
Application example: Pipelines extending from several hundred metres to several kilometres (refineries, power plants, district heating networks) must be maintained at temperature to ensure fluid circulation.
Problem example: Significant heat losses, power feeds often limited to pipe ends, and the risk of circuit failure make reliability essential.
The HTP3F Solution
The HTP3F (Longline) heating cable, with its three low-resistance flat conductors in a three-phase configuration, efficiently heats pipelines up to several kilometres in length. Its flat conductor design ensures high thermal efficiency, flexibility, and optimal reliability for long and critical industrial installations.
Longline (HTP3F) Heating Cables are used in the following sectors:
-Chemical & Petrochemical
-Machine Building
-Construction
-Water Treatment and Distribution
-Food & Beverage Industry
-General Industry
This list is not exhaustive.
