ISO/TR 7035-2:2024

Design and asset management of DIP for water application — Part 2: Design, installation and operation

The objective of this document is to assist conceptors, engineering offices, water companies or project owners in the design, installation and operation of the ductile iron pipeline systems for water supply: — introduce practices for design, installation and operation of new ductile iron pipe water supply systems, rehabilitation or renovation; — refers to existing standards that specify products’ design, installation and site testing, materials and coatings. This document gives efficient support to ISO/TR 7035-1 which indicates chapters here for readers’ reference.

Conception et gestion des actifs des tuyaux en fonte ductile pour l'alimentation en eau potable — Partie 2: Conception, installation et exploitation

General Information

• Status: Published
• Publication Date: 29-Sep-2024
• ICS: 23.040.10 - Iron and steel pipes
• Technical Committee: ISO/TC 5/SC 2 - Cast iron pipes, fittings and their joints
• Drafting Committee: ISO/TC 5/SC 2/WG 26 - Design and asset management
• Current Stage: 6060 - International Standard published
• Start Date: 30-Sep-2024
• Due Date: 11-Jan-2026
• Completion Date: 30-Sep-2024

Standards Content (Sample)

Technical
Report
ISO/TR 7035-2
First edition
Design and asset management of
2024-09
DIP for water application —
Part 2:
Design, installation and operation
Conception et gestion des actifs des tuyaux en fonte ductile pour
l'alimentation en eau potable —
Partie 2: Conception, installation et exploitation
Reference number
© ISO 2024
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
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or ISO’s member body in the country of the requester.
ISO copyright office
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Published in Switzerland
ii
Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 General . 2
5 Practices to set targets for water supplying system . 2
5.1 Water quality .2
5.1.1 Materials .2
5.1.2 Prevention of back flow .2
5.1.3 Stagnation .2
5.1.4 Cross-connection with other systems .3
5.2 Design life . .3
5.3 Demand for water .3
5.3.1 General .3
5.3.2 Water demand estimate .3
5.3.3 Water for fire-fighting .4
5.4 System security .4
6 Design . 4
6.1 Hydraulic design .4
6.1.1 Sizing .4
6.1.2 Mains .5
6.1.3 Local main .6
6.1.4 Service pipes .6
6.2 Structural design .6
6.3 System layout design .6
6.3.1 Mains .6
6.3.2 Service pipes .7
6.3.3 Valves .7
6.3.4 Reservoirs .7
6.3.5 Pump stations .7
6.4 Protection against aggressive environment .8
6.4.1 General .8
6.4.2 External protection.8
6.4.3 Internal protection .8
7 Hydraulic thrust restraint design . 9
7.1 Hydraulic thrust force and restraint principles .9
7.2 Thrust blocks solutions .9
7.3 Restrained joints solution .9
7.3.1 General .9
7.3.2 Restrained joint systems.10
8 Design of trenchless method . 10
8.1 Pipe jacking . .11
8.1.1 Survey .11
8.1.2 Pipe protection .11
8.1.3 Jacking procedure . . .11
8.2 Horizontal directional drilling . 12
8.2.1 General . 12
8.2.2 Site investigation . 12
8.2.3 Pilot bore design . 12
8.2.4 Upsize the bore . 13
8.2.5 Pulling in. 13

iii
8.2.6 Drilling fluid usage .14
8.3 Design of casing method .14
8.3.1 General .14
8.3.2 Casing design .14
8.3.3 Carrier design . 15
8.3.4 Installation . 15
8.4 Pipe bursting . 15
8.4.1 General . 15
8.4.2 Parameters . 15
8.4.3 Replacement pipe .17
9 Design of pipelines on supports . 17
9.1 Pipelines on land .17
9.1.1 Support design .17
9.1.2 Loading and forces . .
...