LEV112: Inspection and Examination of Explosion Protection on LEV Dust Collectors

Explosion protection systems are becoming an increasingly common feature of Local Exhaust Ventilation (LEV) dust collection systems.

Yet many LEV practitioners receive little formal training in how these systems work—or, more importantly, what they should be looking for during a Thorough Examination and Test (TExT).

LEV examiners are not expected to design explosion protection systems.

They are not expected to carry out explosion vent calculations or verify DSEAR compliance.

But they are expected to recognise obvious defects, understand the purpose of the protection provided, and know when specialist advice should be recommended.

LEV112: Inspection and Examination of Explosion Protection on LEV Dust Collectors was written to bridge that gap.

Rather than teaching explosion engineering, this book provides practical guidance for LEV practitioners carrying out inspections of dust collectors fitted with explosion protection systems.

It explains how the most common protection devices work, what defects are frequently encountered during inspections, and how observations should be reported during a Thorough Examination and Test.

Understanding Explosion Protection During LEV Inspection

Combustible dust explosions are relatively rare.

When they occur, however, the consequences can be catastrophic.

Explosion vents, flameless vents and associated protection systems are designed to reduce those risks—but only if they remain correctly installed, properly maintained and free from defects.

This book explains the engineering principles behind these systems in a practical, inspection-focused manner.

Written specifically for LEV engineers, occupational hygienists and TExT practitioners, it introduces the fundamentals of dust explosion protection before moving into the inspection of explosion venting systems commonly encountered on LEV dust collectors.

Each chapter builds logically on the last, helping readers understand not only what explosion protection devices do, but why they are fitted, how they operate, and what warning signs indicate that further investigation may be required.

Inside You'll Learn About:

• The role of the LEV examiner when inspecting explosion protection
• The limits of a Thorough Examination and Test (TExT)
• When specialist explosion engineering advice should be recommended
• Explosion science and combustible dust hazards
• The Dust Explosion Pentagon
• Combustible dust characteristics, Kst, Pmax and Pred
• Explosion protection philosophy and hierarchy of controls
• Explosion venting systems
• Flameless explosion venting
• Explosion vent ducts (diversion ducts)
• Common inspection defects
• Practical inspection guidance
• Real inspection examples and case studies
• Reporting observations within an LEV Thorough Examination and Test

Throughout the book, engineering principles are continually linked back to practical LEV inspections, helping readers recognise defects and understand the purpose of explosion protection devices without stepping beyond the role of the competent LEV examiner.

Why This Matters

A Thorough Examination and Test isn't simply about measuring airflow.

It is an opportunity to identify hazards before they become incidents.

Although assessing DSEAR compliance and designing explosion protection systems falls outside the scope of a TExT, obvious deficiencies should never be ignored.

Blocked explosion vents, damaged vent panels, unsuitable vent ducts, unauthorised modifications and incorrectly installed protection systems are all defects that may indicate a significant safety concern.

LEV112 helps practitioners understand what they are looking at, recognise the limits of their own competence, and know when specialist advice should be recommended.

Its philosophy is simple:

Recognise. Inspect. Report. Recommend.

Whether you're new to LEV inspection or an experienced examiner, this guide provides the knowledge needed to confidently assess the explosion protection systems most commonly encountered on LEV dust collectors.

Who This Book Is For

LEV112 is essential reading for:

• LEV engineers and inspectors
• LEV testers carrying out Thorough Examination & Test (TExT)
• Occupational hygienists
• COSHH assessors
• Health & Safety professionals
• Maintenance engineers responsible for dust collection systems
• Duty holders responsible for combustible dust risks
• Anyone wishing to better understand explosion protection on LEV systems

Whether you're preparing for professional qualifications, carrying out statutory LEV inspections, or simply wanting to understand the explosion protection devices fitted to modern dust collectors, this book provides the practical inspection knowledge needed to carry out competent examinations.

Product Details

Title: LEV112: Inspection and Examination of Explosion Protection on LEV Dust Collectors

Series: LEV Academy Inspection Series

Format: Digital Book (PDF)

Focus: Practical inspection and examination of explosion protection systems fitted to LEV dust collectors

Author: Louise Davies Wood

Published: June 2026

Topics Covered: Dust explosion science, combustible dust characteristics, explosion venting, flameless venting, explosion vent ducts, inspection techniques, common defects, reporting and practical guidance

Ideal For: LEV practitioners, occupational hygienists, engineers, duty holders, Health & Safety professionals and anyone responsible for inspecting or managing LEV systems handling combustible dusts.