ISO 10804:2018

INTERNATIONAL ISO
STANDARD 10804
Second edition
2018-01
Restrained joint systems for ductile
iron pipelines — Design rules and
type testing
Assemblages verrouillés pour canalisations en fonte ductile — Règles
de conception et essais de type
Reference number
©
ISO 2018
© ISO 2018
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ii © ISO 2018 – All rights reserved

Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Design rules . 2
5 Type testing. 2
5.1 General . 2
5.2 Test conditions . 3
5.3 Test method for positive internal pressure . 3
5.4 Test method for negative internal pressure . 4
5.5 Test method for dynamic (cyclic) internal pressure. 4
5.6 Test report . 4
Bibliography . 5
Foreword
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URL: www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 5, Ferrous metal pipes and metallic fittings,
Subcommittee SC 2, Cast iron pipes, fittings and their joints.
This second edition cancels and replaces the first edition (ISO 10804-1:2010), which has been technically
revised. The main changes compared to the previous edition are as follows:
— the positive internal pressure type test in the configuration of minimum design radial gap has been
introduced for joints restrained by gasket with hard anchor teeth;
— the references and presentation have been reviewed and improved.
iv © ISO 2018 – All rights reserved

INTERNATIONAL STANDARD ISO 10804:2018(E)
Restrained joint systems for ductile iron pipelines —
Design rules and type testing
1 Scope
This document specifies the design rules and type testing for restrained joint systems to be used on
ductile iron pipelines complying with ISO 2531 and ISO 7186, in order to determine their mechanical
properties and leaktightness.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 6708, Pipework components — Definition and selection of DN (nominal size)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 6708 and the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp
— IEC Electropedia: available at https://www.electropedia.org/
3.1
restrained joint
joint in which a means is provided to prevent separation of the assembled joint
3.2
allowable operating pressure
PFA
maximum internal pressure, excluding surge, which a component can safely withstand in permanent
service
3.3
allowable maximum operating pressure
PMA
maximum internal pressure, including surge, which a component can safely withstand in service
3.4
type test
proof-of-design test which is performed once and repeated only after change of design
3.5
allowable angular deflection
angular deflection that a joint between two components can safely withstand in service under the
allowable operating pressure (PFA) (3.2)
4 Design rules
4.1 All restrained joints for ductile iron pipes, fittings and other components shall be designed in
accordance with this clause. If the design of a restrained joint has been tested and successfully used for a
minimum of 10 years, a type test as described in Clause 5 is only required for a significant change in the
design
...