Product and specification guidance

Can replacement manhole covers be supplied separately from existing frames? Our technical guidance explains why interchangeability between products and manufacturers is not generally recommended, how BS EN 124 applies to complete assemblies, and when controlled replacement cover solutions may be suitable.

A clear explanation of WIS 4-26-01, the UK Water Industry standard for testing and classifying how much water can leak through manhole covers, helping specifiers manage surface water inflow into foul sewer networks.

Ductile iron is 100% recyclable. At the end of its life, it can be melted down and reused to make new products without losing strength or performance.

Recommended materials for a flowable mortar installation in a handy checklist.

Clear opening is a critical safety and compliance measure for manhole covers. It is defined in both BS EN 124 and CD 534. 

A helpful guide to what information you will need to record on an installation in order to successfully apply for a warranty.

All of our products are packed full of features. This knowledge article explains the features and their benefits in detail.

How Armadillo SiltShield is SUDs complaint for The SuDS Manual (CIRIA C753), Design and Construction Guidance (Sewerage Sector Guidance, Appendix C, 2021)​ and Sewers for Scotland v4.

Recognising the importance of controlled access in maintaining the integrity of civil engineering projects, we offer locking options for our D400 & E600 manhole cover ranges.

It's crucial to note that this addition is purely a message of awareness; the quality and functionality of the Tristar gully gratings remain unaltered. These gratings have been steadfast in performance, offering reliability that clients have come to expect from us.

This compatibility chart highlights which manhole cover stock code references work with Clicklift

Recognising the importance of controlled access in maintaining the integrity and safety of civil engineering projects, we offer locking options for the Safeseal range.

This article provides an overview of ductile sealing options.

Our manhole covers provide multiple lifting provisions.

Guidance on the symbols and iconography displayed on Wrekin ductile ironwork.

Steel fabrication is a highly flexible process allowing all sorts of non-standard sizes and designs that are not covered by BS EN 124. This helpful guide will help you to navigate your way to choosing the right steel access cover.

The retrofittable ID badge facility supports a range of ID badging but can also house communications antennas within the cover, avoiding any need to alter the surrounding road surface. This article explores the potential applications of this technology.

A handy guide showing the information on our product labels. This information will help you identify what products you have when picking, packing or installing on-site.

See which Unite or Highway Manhole covers are compatible with our SealAble system.

Where the loss of barrier coatings has occurred, usually through trafficking and/or light corrosion, a site-applied paint coating may be successfully brush-applied to refresh the surface finish of ductile iron parts.

A complete feature comparison of our Tristar, Highway and Unite ranges of access cover.

Installation guide for the Wrekin gully chute connector with a 480 x 320mm gully grating assembly.

Guidance on surface oxidation on iron castings, including what our covers are coated with and why we do this.

This helpful guide can help you to ensure that the D400 manhole covers you choose are suitable for highway use.

Learn how to accurately measure manhole covers and gully grates with our helpful guide.

Guidance for how to prepare, mix, apply and store our UniPak product.

Convert loading codes between FACTA Class, Slow Moving Wheel Load (SMWL) Gross Laden Vehicle Weight (GLVW) and Load Duty.

Whilst BS EN 124 provides no definition for a ‘Pedestrianised’ grating, there is an allowance in the Standard to reduce drainage apertures down to 5mm wide, where these may be preferred. This knowledge base article will help you to understand more about pedestrian friendly gratings.

Learn how to safely and efficiently remove a Hercules manhole cover in just a few easy steps.

A short guide of what to do, and what not to do, when installing Clicklift.

Find out which Armadillo system is right for your next project, whether that is the protector shell for manhole covers / gully grates or SiltShield to protect the drainage network.

Find out how you can customise our Armadillo products. The customisation includes colour schemes, bespoke chequer patterns, enhanced anti-slip coating, and alternative badging.

Understand the difference between anti-slip and anti-skid, how the results are measured and the standards behind it.