ANSI/AWWA C906-99

AWWA C906-99 - AWWA Standard for Polyethylene (PE) Pressure Pipe and Fittings, 4 In. (100 mm) Through 63 In. (1,575 mm), for Water Distribution and Transmission

June, 1999

American Water Works Association

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This standard describes polyethylene (PE) pressure pipe made from materials conforming to standard PE code designations PE 2406, PE 3406, and PE3408. The pipe is primarily intended for use in transporting potable water in either buried or aboveground installations. The standard describes 10 dimension ratios (DRs) for nominal pipe sizes ranging from 4 in. (100 mm) through 63 in. (1,575 mm). Pipe outside diameters (ODs) conform to the outside diameter dimensions of iron pipe sizes (OD-based, IPS), to those established by the International Organization for Standardization (ISO), or to those established for DI equivalent ODs (DIOD).

Keywords :Standards, Polyethylene, Pipes, Fittings, Distribution Systems, Design, Pressure


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Contents
All AWWA standards follow the general format indicated subsequently. Some variations from this format may be
found in a particular standard.
SEC. PAGE SEC. PAGE
Foreword
I Introduction........................................ vii
I.A Background......................................... vii
I.B History ................................................ vii
I.C Acceptance .......................................... vii
II Special Issues .................................... viii
II.A Advisory Information on
Production Application.................. viii
III Use of This Standard........................... ix
III.A Purchaser Options and
Alternatives....................................... ix
III.B Modification of Standard...................... x
IV Major Revisions..................................... x
V Comments.............................................. x
Standard
1 General
1.1 Scope ...................................................... 1
1.2 Purpose .................................................. 1
1.3 Application............................................. 2
2 References........................................... 2
3 Definitions........................................... 3
4Requirements
4.1 Permeation ............................................ 5
4.2 Materials .............................................. 5
4.3 Pipe Requirements................................ 6
4.4 Fusion Fittings Requirements ........... 10
4.5 Joining Methods.................................. 12
4.6 Pipe Classification and Working
Pressure Rating ............................... 14
5 Verification
5.1 General ................................................ 18
5.2 Material Testing Requirements......... 18
5.3 Manufacturer Qualification................ 18
5.4 Pipe Testing Requirements................ 18
5.5 Fitting Testing Requirements............ 19
5.6 Provision for Test Sample
Failure ............................................ 19
5.7 Bend-Back Test ................................... 19
5.8 Rejection ........................................... 20
5.9 Plant Inspection by Purchaser .......... 20
6 Delivery
6.1 Marking............................................... 21
6.2 Shipping .............................................. 22
6.3 Affidavit of Compliance...................... 22
Appendixes
A Bibliography........................................ 23
B Working Pressure Rating
and Pressure Class ......................... 25
Figure
1 Cross Section of Polyethylene
Flange Assembly ............................. 13
Tables
1 PE Pipe and Fittings Materials .......... 5
2 Elevated-Temperature [176±3.6°F
(80±2°C)] Sustained-Pressure
Test..................................................... 6
3 Outside Diameters (ODs) and
Tolerances, IPS Sizing System
(ANSI B36.10) ................................... 7
4 Outside Diameters and
Tolerances, ISO Sizing
System (ISO 161/1) ........................... 8
5 Minimum Wall Thickness
(inches), IPS Sizing System.............. 9
6 Minimum Wall Thickness
(millimeters), ISO Sizing
System.............................................. 10
7 DI: Outside Diameter (ODs)
and Tolerances for Ductile-
Iron Sizing System (DIOD) ............ 11
8 DI: Minimum Wall Thickness
(inches) for Ductile-Iron
Sizing System (DIOD)..................... 12
9 Pressure Class/Maximum
Working Pressure Rating .............. 14
Copyright © 1999 American Water Works Association, All Rights Reserved
vi
SEC. PAGE SEC. PAGE
10 Temperature Compensation
Multipliers (F
T
) ................................ 15
11 Allowable Maximum Pressure
Surges Above Working Pressure
(WP) and Corresponding
Estimated Maximum Allowable
Sudden Change in Water
Velocity for Pipe Operating at
80°F (27°C) and at a Maximum
Working Pressure (WP) Equal To
the Pipe’s Nominal Pressure
Class (PC) ........................................ 16
B.1 Pressure Surge per Foot of
Extinguished Velocity by Pipe
DR for PE 3908 Materials ............ 25
B.2 Working Pressure Rating by DR for
Velocity Changes for PE 3408
Materials.......................................... 27
Copyright © 1999 American Water Works Association, All Rights Reserved