Heated Hoses for Hazardous Areas Zone 1 & Zone 2
Thorne & Derrick are authorised suppliers of Eltherm heated hoses—engineered to maintain precise temperatures for fluids and gases in process-critical operations. 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 heated hoses are engineered for the reliable transfer of gases and liquids in hazardous environments, maintaining process temperatures up to 200°C. Designed by Eltherm for use in explosion-proof zones 1 & 2 (gas) and zones 21 & 22 (dust), these electrically trace-heated hoses ensure safe, consistent temperature control from the extraction point to analytical measurement equipment.
Each ATEX heated hose is custom-manufactured to user specifications and delivered with a CE Declaration of Conformity, certifying compliance with stringent safety and performance standards.
Key Applications for Heated Hoses:
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Process control systems and instrumentation
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Emission monitoring and environmental analytics
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HVAC system diagnostics and air quality monitoring
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Condensation prevention and dew point stabilisation
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Critical operations in chemical, petrochemical, pharmaceutical, and cement manufacturing industries
Eltherm’s heated hose solutions are purpose-built to ensure thermal integrity, operational safety, and regulatory compliance in demanding industrial applications.
ATEX Heated Hose for Hazardous Areas Zone 1 & Zone 2 – Heat Output/Heating circuit lengths
- Power tolerances: < 200 W: +/-10 % > 200 W +5/-10 %
- Ambient temperatures from -20 °C to +45 °C
- Serial resistance heating cable type ELKM-AG is used for the heated hose type ELH/a
- Mandatory to use an appropriate safety limiter (Eltherm controller and limiter series Ex-box)
- Equipment class: II 2G Ex e IIC T3-T5 Gb II 2D Ex tb IIIC TX Db
For further specification details please see the data sheet.
| 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. |
Heated Hose Configuration – Inner Linear Options
| 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 |
CONTROLLED ANALYTIC HEATED HOSES – Outer jacket options
| Outer Jacket | Temperature Range | Description |
| Corrugated PA hose (PA-11/12) | -40 to 100 °C | Electrically conductive |
| Stainless steel braiding | -45 to 200 °C | Mat. 1.4301 highly corrosion-resistant |
| Galvanised iron braiding | -45 to 200 °C |
Our heat loss calculation services include:
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.
With over 35 years of experience, Thorne & Derrick are trusted specialists in electrical, mechanical, and process safety equipment for explosive and industrial environments. We offer:
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Innovative heating, lighting, and power systems
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Expertise in hazardous area compliance
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Support for global clients across oil & gas, petrochemicals, water treatment, and manufacturing
ATEX Heated Hose for Hazardous Areas Zone 1 & Zone 2
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