
Longline HTS1F & HTS3FM
Longline (HTS1F) is a series resistance, single conductor heating cable . It is supplied in multiples of three cables for configuring into a 3 phase heating system. It is used for freeze protection or process temperature maintenance of long pipelines up to 5km, in safe or hazardous areas. A typical application is the temperature maintenance of crude or fuel oils in above ground or buried transfer lines. Longline (HTS1F) minimises the number of electrical supplies needed and so minimises supply cabling and distribution equipment costs. Circuits are often fed at the pipe ends only.
The number of heating cables and their conductor size is varied to produce the desired heat output for the circuit length required. The Longline (HTS1F) heating cables are connected directly to the 3 phase mains voltage or to a step-up transformer.
Longline HTS3FM
Longline (HTS3FM) is a series resistance, three phase constant power heating cable used for freeze protection or process temperature maintenance of moderately long pipelines up to 2km, in safe or hazardous areas. A typical application is the temperature maintenance of crude or fuel oils in above ground or buried transfer lines.
Longline (HTS3FM) minimises the number of electrical supplies needed and so minimises supply cabling and distribution equipment costs. Circuits are often fed at the pipe ends only. Heating conductors are sized to produce the desired heat output for the circuit length required. The Longline (HTS3FM) heating cables are connected directly to the 3 phase mains voltage or to a step-up transformer.
The large heated surface of Longline (HTS3FM)'s flat foil construction results in lower operating temperatures than equivalent round conductor constructions thereby improving safety and system life. The high efficiency produces high power capability up to 50W/m.
Example of Applications
- Long pipelines
- Buried pipelines
- 3-Phase heating systems
Benefits
- Circuit lengths up to 2km (HTS3FM) and 5km (HTS1F)
- Power outputs up to 50W/m
- Available up to 600VAC (HTS1F) and1000VAC (HTS1F)
Product Specification - maximum withstand temperature 200°C (392°F)
Longline HTS1F & HTS3FM is available in 10, 20, 30, 40 and 50 W/m outputs. |
Maximum continuous exposure Temperature ( Power on ) | 200°C (392°F) |
Maximum permissable exposure Temperature ( Power off ) | 200°C (392°F) |
Minimum Operating Temperature | -80°C (-112°F) |
Minimum installation temperature | -40°C (-40°F) |
Power Supply | HTs1F: up to 600V single phase up to 1000V 3-Phase HTS3FM: up to 1000V 3-Phase |
Power Output | up to 50W/m |
Heater Nominal Output (W/m) | HTS1F-x HTS3FM-x | HTS1F-xS HTS3FM-xS | HTS1F-xF HTS3FM-xF |
|---|---|---|---|
10 | 200 | 200 | 200 |
20 | 191 | 180 | 180 |
30 | 163 | 157 | 157 |
40 | 133 | 127 | 127 |
50 | 97 | 92 | 92 |
Surface temperature limits in acordance with EN50014 | |||
Accreditations

HTS1F
19ATEX3388X


HTS1F
21UKEX31147X

HTS3FM
19ATEX3389X


HTS3FM
21UKEX31148X