| Important training material correction: amendment to boats pipe sizing table

NICEIC Certification has issued an important amendment to its Liquefied Petroleum Gas Safety On Site Guide. Gas engineers who undertook NICEIC’s LPG boat training course or bought the Liquefied Petroleum Gas Safety Guide before May 2022 should be aware of the following addendum, published by NICEIC, in response to an error in Section 13: Boats: Table 13.1. Pipe sizing table.

Table 13.1 is reproduced from Table A.1, Annex A of BS EN ISO 10239 Small craft – Liquefied petroleum gas (LPG) systems

Prior to May 2022, the first column of Table 13.1 had the heading “Inside diameter of hose/ outside diameter of copper pipework (mm)”, which reflected the 2008 edition of BS EN ISO 10239, but which was subsequently amended in 2014, and remains unchanged in the latest 2017 edition of BS EN ISO 10239, to read “Inside diameter of hose/pipe”.

The remainder of the table, including the important pressure drop values, has not changed over the years and is correctly reflected within Table 13.1 of the Guide.

The current version of NICEIC Certification’s LPG Guide (Version 7 dated May 2022, ISBN: 978-1-83863-036-2), contains the correctly labelled table, as shown on the right.

Gas engineers are reminded when sizing gas pipework, particularly when a given size is close to its theoretical pressure

* Inside diameter of hose or pipe

Note

Note loss limit, to use the pipe/hose manufacturer’s data, which will take account of the pipe wall thickness when specifying the correct pipe size to use. ■

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