Heated HosesHeated Hose – Standard Liquid & Gas Hoses Isopad IHH-ST4A/ST4D (to 400°C)
The Thermocoax Isopad IHH-ST4A/ST4D is a flexible heated hose for liquid and gaseous media with a maximum operating temperature of 400°C.

Designed for use across a wide range of industrial sectors, Eltherm heated hose assemblies deliver performance, flexibility, and compliance with international safety standards, including ATEX and IECEx.
Designed for use across a wide range of industrial sectors, Eltherm heated hose assemblies deliver performance, flexibility, and compliance with international safety standards, including ATEX and IECEx.
Eltherm-controlled analytic heated hoses are suitable for transporting gas from the point of withdrawal to an analytic measuring device. Eltherm ELHAa sb is has a self regulating sample gas line that has a range from low (frost protection) up to 120ºC.
The main functionality is emission monitoring; however, in recent years there has been an increase in process analytics by industries such as chemical and petrochemical looking to monitor and control combustion processes and further process analysis.
1. Inner Liners – See table below
For further specification details please see the data sheet.
IBC & Drum Heating
Maintain optimal temperatures for viscous fluids such as bitumen, oils, and chemicals — preventing crystallisation or degradation.
Pipework & Valve Trace Heating
Protect pipelines from freezing and maintain flow during cold conditions.
Tank & Vessel Heating
Ensure critical storage tank temperatures in sectors like food processing, pharmaceuticals, and petrochemicals.
Hazardous Area Heating
ATEX/IECEx certified heat tracing for safe operation in explosive gas and dust environments.
Our team of trained sales engineers is available to support your heat tracing service needs — from designing complex, multi-kilometre systems for major projects to supplying custom heating cable kits for plant winterisation and factory applications.
We offer:
Innovative heating, lighting, and power systems
Expertise in hazardous area compliance
Support for global clients across oil & gas, petrochemicals, water treatment, and manufacturing
| Category | Heated Hoses |
|---|
| Component | Description |
|---|---|
| 1. Inner Liners | Material and specifications vary—refer to the detailed selection table below. |
| 2. Sensor | Integrated temperature sensor for precise thermal regulation and monitoring. |
| 3. Heating Cable | Electrically trace-heated cable with a spacer for uniform heat distribution. |
| 4. Insulation | High-performance thermal insulation minimises heat loss and improves efficiency. |
| 5. Outer Jacket | Durable protective jacket designed for mechanical and environmental protection. |
| 6. End Caps | Securely sealed end fittings to ensure containment and operational safety. |
| Part Number | Temperature | Description |
| Eltherm ELH/a | 200 °C | fixed PTFE or PFA core |
| Eltherm ELH/ai | 200 °C | fixed PTFE core replaceable PTFE or PFA core |
| Eltherm ELH/ad | 250 °C | fixed PTFE core with VA braiding and RSL pipe stubs |
| Eltherm ELH/adi | 250 °C | fixed PTFE core with VA braiding and RSL pipe stubs replaceable PTFE or PFA core |
| Eltherm ELH/adi-SP | 250 °C | fixed PTFE core with VA braiding and RSL pipe stubs replaceable PTFE or PFA core |
| Eltherm/ae | 600 °C | fixed stainless steel pipe |
| Outer Jacket | Temperature Range | Description |
| Corrugated PA hose (PA-11/12) | -40 to 80 °C | Standard |
| Corrugated TPRI-B hose | -30 to 150 °C | Highly flexible at high ambient temperatures |
| Corrugated hose with PVC outer jacket / ANACONDA | -25 to 70 °C | Tread-resistant, robust design Can also be used outdoors |
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Heated HosesThe Thermocoax Isopad IHH-ST4A/ST4D is a flexible heated hose for liquid and gaseous media with a maximum operating temperature of 400°C.
Heated HosesThe Thermocoax Isopad IHH-ST2A/ST2D is a flexible heated hose for liquid and gaseous media with a maximum operating temperature of 200°C.
Heated HosesThe Thermocoax Isopad IHH-ST1A/ST1D is a flexible heated hose for liquid and gaseous media with a maximum operating temperature of 100°C.
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