Thorne & Derrick are leaders in the development and distribution of Product Innovations that deliver significant improvements to clients plant, people and operational safety in the explosive atmosphere industries.
Your proactive problem solvers experienced in succession planning for the replacement of obsolete, non-conformant and legacy equipment in hazardous areas.
Your first-choice provider of innovative and competitive solutions to ensure ATEX & IECEx Compliance for Hazardous Area Electrical, HVAC & Process Instrumentation Equipment to your UK and international projects.
Control Panels | Plugs | Isolators | Enclosures & Junction Boxes | Lighting | Control Stations | Motor Starters | Heat Trace | Gas Detection | Flame Detection | Process Instrumentation | Process Heating | Ventilation Fans | Security Access Control
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Published 10 Aug 2026
LED and xenon are two of the principal light-source technologies used in hazardous area visual signalling. Both can provide an effective warning, but they produce different signal patterns and are selected using different performance criteria. An LED ATEX beacon can provide continuous or electronically controlled signalling, depending on the...
Published 03 Aug 2026
Selecting an ATEX beacon involves more than choosing a lens colour or deciding between an LED and xenon light source. The product must be suitable for the complete hazardous area classification, environmental conditions, electrical system and required visual signal. The selection process should begin with the hazardous area documentation....
Published 28 Jul 2026
Electrical Heat Tracing Inspection, Testing & Troubleshooting Quick Navigation Testing, Maintenance & Fault Finding Overview Why Preventive Maintenance Matters When Should Trace Heating Be Tested? Safety & Preparation Visual Inspection Electrical Testing Controllers, Sensors & Limiters Insulation & Weatherproofing Common Trace Heating Faults Fault-Finding Process Preventive Maintenance Schedule Testing...
Published 27 Jul 2026
An ATEX beacon is a visual signalling device designed and certified for use where flammable gas, vapour, mist or combustible dust could create a potentially explosive atmosphere. Depending on its design, the beacon may produce a steady, flashing, strobe, blinking or rotating visual signal. It can communicate an emergency...
Published 14 Jul 2026
Electrical Heat Tracing Design & Cable Output Quick Navigation Trace Heating Heat Loss Calculation Overview Why Is a Heat Loss Calculation Required? Information Required for the Calculation Required Maintain Temperature Minimum Ambient Temperature Temperature Difference Pipe Diameter & Material Insulation Material & Thickness Indoor, Outdoor & Weather Conditions Valves,...
