ATEX Heat Tracing | Hazardous Area Zones 1 & 2 (21 & 22)

Thorne & Derrick International are the UK’s largest stockist and supplier of Heat Tracing Systems for commercial, industrial and hazardous area heating of pipework, tanks, drums and vessels in both safe, non-hazardous and hazardous area locations. Since 1985 we have been providing expert technical support, competitive prices and an international delivery service for leading manufacturers of heating cables.

Our Team of Trained Sales Engineers are available to advise and support your heat tracing enquiries – this includes design and supply of complex multi-kilometre, major-project systems to custom heat trace cable kits for the protection of winterisation against plant and factory facilities.

ATEX heat tracing is a type of heating system that is designed to prevent frost damage of pipework and maintain process temperatures. ATEX heat tracing systems comply and meet the requirements of industries that operate in hazardous environments, where explosive atmospheres may occur due to the presence of flammable gases, vapours, and dust – providing safe working conditions in hazardous areas.

ATEX is a European directive that mandates the use of equipment and systems that are certified for use in hazardous environment zones 1, 21, 2 & 22. The ATEX regulations apply to equipment and protective systems meant for use in areas where there is a risk of explosion, such as chemical plants, oil refineries, and gas distribution. The regulations aim to prevent accidents and protect workers from harm by ensuring that equipment is designed, tested, and labeled to meet specific safety standards.

Electrical Heat Tracing Systems

Heat Tracing Systems consist of electrical heating cables and controls that are installed on pipes, vessels, and other equipment to keep them at a specific temperature. The heating cables are designed to withstand harsh conditions, including corrosive chemicals, mechanical impact, and extreme temperatures. ATEX trace heating systems are classified into two types: self-regulating and constant wattage heat tracing. Self-regulating heating cables can adjust their heat output according to the temperature of the surface they are installed on, while constant wattage cables have a fixed output and require a temperature controller to regulate their heat output.

Hazardous area heat tracing is essential for preventing the potential ignition of flammable materials, which can lead to catastrophic consequences in industries such as oil & gas, chemical manufacturing, and mining. Additionally, trace heating reduces maintenance costs by extending the lifespan of pipes and equipment; also reducing damage and downtime.

ATEX approved and certified electrical heat tracing solutions provide safety and conformity in the following industries

• Chemical plants
• Saw mills
• Cement plants
• Oil refineries
• Gas distribution
• Industrial flour mills
• Paint production
• Sewage treatment plants
• Sugar plants