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Lower explosion limit (LEL)

Category Definition

The concentration of a flammable gas, vapour, dust, or fibres in air above which an explosive atmosphere will not form.

Latest blog posts

Automatic Shutdown and Decompression System for Injection Moulding Machines and Extruders in the Event of Fire Risk
Eight Audits, Five ATEX Compliance Documents: Food Industry Group Chooses Explosion Safety Standardisation
Explosion Protection Without Technical Documentation of the Protected Equipment
A Grounding Controller That Keeps the Operator in Check: Earth-Rite MGV Debuts in Poland
How GRUPA WOLFF Supports Engineering and Design Companies – An Overview with Examples
AW-OZ: a novel approach to explosion risk assessment – run the application
ATEX explosion protection in a sugar factory: a consistent safety system

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Explosion Risk Assessment »
Explosion Hazard Zones »
Explosion Protection Document – EPD »
ATEX training »
HAZOP studies – safety analysis of process systems »
ATEX audits and expert opinions »

Fire safety

Fire detection and alarm system »
Spark extinguishing systems »
Extinguishing systems »
Smoke removal and ventilation system »
Sound alarm systems »
Ex-Signal and escape sign luminaires »

Explosion safety

Explosion protection »
Explosion suppression »
Explosion relief (venting) »
Explosion decoupling (isolation) »
Spark detection and extinguishing system »
Electrostatic earthing »
Flame arresters »
ATEX case studies and ATEX training »
ATEX training »
Explosion Safety Audit »
Determining Explosion Risk Zones »
Explosion Risk Assessment »
Explosion Protection Document »

CONTACT »

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info@grupa-wolff.com

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Electrical Equipment

Electrical connectivity EX ATEX »
Ex-Junction boxes and terminal enclosures ATEX »
Ex-Control units and control stations ATEX »
Ex-Safety and main current switches ATEX »
Ex-Control and distribution systems ATEX »
Ex-Cable glands ATEX »
Optical-acoustic signaling EX ATEX »

EX lighting

EX-linear light fittings ATEX »
Ex LED lighting ATEX »
EX-Ceiling pendant light fittings and floodlights ATEX »
EX-Signal and escape sign luminaires ATEX »
Portable EX-hand lamps ATEX »

EX Heating

Room heaters »
Fan heaters »
Line liquid heaters »
Process media heaters »
Cabinet and enclosure heaters »
EX Thermostats »

Industrial Equipment

Screening machines »
Mills for powders »
Valves / gates / dampers »
Sampling of loose material »
Granulators, dryers, coolers »
Magnetic separators »
Transport equipment »
Bead mills / mixers / deaerators »
Sludge and suspensions dryers / flakers »
Liquid samplers »

WOLFF GROUP provides specialised engineering works for broad industrial applications. Our activities include: explosion and process safety, “turn-key” construction of industrial systems, production and supply of process equipment and instruments as well as transfer of new technologies. Over 25 years of operation we have been trusted by hundreds of companies – thank you.

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All rights reserved.

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