ISO 17775:2006

INTERNATIONAL ISO
STANDARD 17775
First edition
2006-12-01

Aircraft — Ground-service connections —
Potable water, toilet-flush water and toilet
drain
Aéronefs — Raccords de service au sol — Eau potable, rinçage et
vidange des toilettes




Reference number
ISO 17775:2006(E)
©
ISO 2006

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ISO 17775:2006(E)
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ii © ISO 2006 – All rights reserved

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ISO 17775:2006(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 17775 was prepared by Technical Committee ISO/TC 20, Aircraft and space vehicles, Subcommittee
SC 10, Aerospace fluid systems and components.
ISO 17775 revises ISO/R 47:1957 and ISO 450:1976, cancelled in 1983 and 1998, respectively:
⎯ ISO/R 47:1957, Aircraft toilet flushing and drawing connections
⎯ ISO 450:1976, Aircraft — Connection for water of drinkable quality
© ISO 2006 – All rights reserved iii

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ISO 17775:2006(E)
Introduction
The ground-service interfaces and the mating ground connectors used on most commercial aircraft, as well as
on some military and private aircraft, are generally considered interchangeable since the designs used are all
based on the same original design. This was originally provided by the Roylyn Company in the 1950s and
then later used as the basis for other suppliers without the detail dimensions. As a result, there are minor
variations in some current products that may have some adverse affects on their performance when mated
with parts made by others. This International Standard provides the necessary detail dimensions to ensure
that all interface dimensions will be compatible, especially as new suppliers enter the market around the
world.
iv © ISO 2006 – All rights reserved

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INTERNATIONAL STANDARD ISO 17775:2006(E)

Aircraft — Ground-service connections — Potable water,
toilet-flush water and toilet drain
1 Scope
This International Standa
...