ISO 16003:2008

INTERNATIONAL ISO
STANDARD 16003
First edition
2008-09-01
Components for fire-extinguishing
systems using gas — Requirements and
test methods — Container valve
assemblies and their actuators; selector
valves and their actuators; nozzles;
flexible and rigid connectors; and check
valves and non-return valves
Composants pour les systèmes d'extinction d'incendie utilisant
des agents gazeux — Exigences et méthodes d'essai — Vannes de
réservoir et leurs dispositifs d'asservissement; vannes de sélection et
leurs dispositifs d'asservissement; diffuseurs; connecteurs flexibles et
rigides; et vannes d'arrêt et clapets de retenue

Reference number
©
ISO 2008
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ii © ISO 2008 – All rights reserved

Contents Page
Foreword. v
Introduction . vi
1 Scope. 1
2 Normative references. 1
3 Terms and definitions. 2
4 Requirements. 5
4.1 General design. 5
4.2 Connection threads and flanges . 8
4.3 Valve function. 8
4.4 Temperature range. 8
4.5 Resistance to internal pressure . 8
4.6 Resistance to bursting . 8
4.7 Leakage. 9
4.8 Impact resistance, check valves . 9
4.9 Resistance to internal pressure and leakage . 9
4.10 Operational reliability. 9
4.11 Nozzle distribution characteristics . 9
4.12 Nozzle resistance to pressure and heat . 9
4.13 Nozzle protection covers . 9
4.14 Type 2 flexible connector resistance of to pressure and heat. 10
4.15 Type 2 flexible connector resistance to heat and cold shock . 10
4.16 Type 2 flexible connectors resistance to cold. 10
4.17 Type 2 flexible connector resistance to flexing. 10
4.18 Flow characteristics. 10
4.19 Corrosion. 10
4.20 Stress corrosion. 10
4.21 Vibration resistance. 11
4.22 Diptube. 11
4.23 Operating force, container-valve actuator . 11
4.24 Operating force, selector-valve actuator. 11
4.25 Functional reliability, valves and actuators . 11
4.26 Manually powered actuators . 11
4.27 Marking and data . 12
4.28 Documentation. 13
5 Test methods. 13
5.1 Test conditions . 13
5.2 Test samples and order of tests. 13
5.3 Compliance. 16
5.4 Function test . 16
5.5 Resistance to internal pressure . 18
5.6 Resistance to bursting . 19
5.7 Leakage test. 20
5.8 Nozzle cover. 22
5.9 Nozzle distribution characteristics . 22
5.10 Operational reliability. 22
5.11 Performance at temperature extremes. 22
5.12 Test for resistance to pressure and heat . 24
5.13 Test for resistance of type 2 and type 4 flexible connectors to heat and cold shock. 24
5.14 Test of type 2 flexible connectors for resistance to cold . 24
5.15 Test of type 2 flexible connectors for resistance to flexing . 24
5.16 Impact test for check valves . 25
5.17 Flow characteristics of container valves. 25
5.18 Flow characteristics of selector valves . 25
5.19 Corrosion. 26
5.20 Stress corrosion. 28
5.21 Vibration. 28
5.22 Diptube. 29
5.23 Operating force and functional reliability. 30
5.24 Other tests. 30
Bibliography . 31

iv © ISO 2008 – All rights reserved

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 16003 was prepared by Technical Committee ISO/TC 21, Equipment for fire protection and fire fighting,
Subcommittee SC 8, Gaseous media and firefighting systems using gas.

Introduction
This International Standard has been prepared by a specialist working group of ISO/TC 21/SC 8 as a
companion document to ISO 14520 (all parts) and is compatible with corresponding documents prepared by
CEN. It does not cover all components incorporated in gaseous fire extinguishing systems dealt with in
ISO 14520 (all parts); rather, it is restricted to key components only, viz., container valve assemblies, flexible
connectors, check valves and non-return valves, selector valves and associated actuators and discharge
nozzles.
CO system components are also covered by this International Standard (see ISO 6183).
NOTE The components requirements of this International Standard are also satisfied by the requirements of
EN 12094 (all parts).
vi © ISO 2008 – All rights reserved

INTERNATIONAL STANDARD ISO 16003:2008(E)

Components for fire-extinguishing systems using gas —
Requirements and test methods — Container valve assemblies
and their actuators; selector valves and their actuators;
nozzles; flexible and rigid connectors; and check valves and
non-return valves
1 Scope
This International Standard specifies requirements and describes test methods for the following components
used in gaseous fire-extinguishing systems: container valve assemblies, which include container valve,
actuator and, if applicable, a diptube; selector valves and their actuators; agent distribution nozzles; flexible
connectors; and check and non-return valves.
Container valve assemblies are designed to control the extinguishant flow from the container to the
distribution pipe work. They are normally in the closed position. The automatic control device triggers the
actuator and the valve opens. Where applicable, the requirements contained in the test methods also apply to
separate container valves.
The design of the nozzl
...