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What detail can I use for cast iron pipes?

Copper pipe test evidence is versatile. It covers all metal pipe materials with a thermal conductivity equal to or lower than copper and a melting point equal to or exceeding copper. This means it can be used for steel, stainless steel, or cast iron.

What we mean by thermal conductivity is the measurement of a material’s ability to essentially move heat from one object to another of a different temperature.

As per the BS EN1366-3:2021 fire-resistance test standard for service penetrations, Annex E section E.4.2.3 states:

E.4.2.3 Type of pipe material

Results of tests conducted as specified in the standard configurations, on a particular pipe material cover pipe materials with a thermal conductivity lower than that tested, subject to the material having a melting point at least equal to that of the material tested or greater than the nominal furnace temperature at the required classification period.

Tests with metal pipes do not cover specific assemblies containing also pipes of class B to F in accordance with EN 13501-1.

NOTE 1—The pictogram only illustrates the rule using examples of the most common materials and does not mean that materials not mentioned are excluded.

However, this information alone is not enough to determine the most relevant tested solution for your application. The interchangeability of test evidence may initially offer various tested solutions, but reviewing the specific project requirements is crucial to ensure you are installing what has been tested.

When it comes to service penetration sealing, the more specific information we have, the better we can determine the most appropriate tested firestopping solutions. Your input is valuable in this process, as it helps us tailor the solution to your needs.

Take a cast iron pipe. In addition to the diameter of the pipe, the details of the substrate penetrated, and the required fire rating, we would need to know whether it is insulated. This also includes the thickness of any insulation and whether the application is a single or multi-service penetration.

To collect this information efficiently, we created the Information Form (ICF) as an online and downloadable form that you can complete and return by email.

Copper pipe tested details

Please Note

The information in this article was accurate at the time of publication. As the industry evolves, information may change too. Although we aim to keep our website updated, if it has been a significant amount of time since the publish date, please verify the information and contact us if you have any questions!

Alec Purdie, Technical, with a black-and-white filter. The background is an orange gradient.

This article was written by

Alec Purdie TIFireE

As Technical Manager at Quelfire, Alec Purdie leads the technical team in providing evidence-based guidance and support for firestopping solutions. A Technician member of the Institution of Fire Engineers (TIFireE), he combines recognised qualifications with industry experience to help clients design and deliver projects with tested, compliant details from the outset.

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