ISO/DTS 22101-2.3

Polyethylene reinforced with short glass fibres (PE-sGF) piping systems for industrial applications

Systèmes de canalisations en polyéthylène renforcé de fibres de verre courtes (PE-sGF) pour les applications industrielles

General Information

• Status: Published
• ICS: 23.040.01 - Pipeline components and pipelines in general
• Technical Committee: ISO/TC 138/SC 3 - Plastics pipes and fittings for industrial applications
• Drafting Committee: ISO/TC 138/SC 3/WG 8 - Polyethylene reinforced with short glass fibres (PE-sGF) piping systems for industrial applications
• Current Stage: 4060 - Close of voting
• Start Date: 15-Oct-2020
• Completion Date: 14-Oct-2020

Standards Content (sample)

DRAFT INTERNATIONAL STANDARD
ISO/DIS 22101-2
ISO/TC 138/SC 3 Secretariat: UNI
Voting begins on: Voting terminates on:
2020-07-22 2020-10-14
Polyethylene reinforced with short glass fibres (PE-sGF)
piping systems for industrial applications —
Part 2:
Pipes
ICS: 23.040.01
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
This document is circulated as received from the committee secretariat.
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 22101-2:2020(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION. ISO 2020
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ISO/DIS 22101-2:2020(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2020

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ii © ISO 2020 – All rights reserved
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ISO/DIS 22101-2:2020(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

Introduction ..................................................................................................................................................................................................................................v

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 2

4 Symbols and abbreviated terms ........................................................................................................................................................... 3

5 Material .......................................................................................................................................................................................................................... 3

6 General characteristics .................................................................................................................................................................................. 3

6.1 Appearance ................................................................................................................................................................................................ 3

6.2 Colour .............................................................................................................................................................................................................. 3

7 Geometrical characteristics ...................................................................................................................................................................... 3

7.1 Measurements ......................................................................................................................................................................................... 3

7.2 Mean inside diameter and out-of-roundness (ovality) ........................................................................................ 3

7.3 Wall thicknesses and their tolerances ................................................................................................................................ 4

7.4 Dimensions of integrated electrofusion socket .......................................................................................................... 8

7.4.1 Diameters and lengths of electrofusion sockets ................................................................................... 8

7.4.2 Wall thicknesses ............................................................................................................................................................10

7.4.3 Out-of-roundness of the bore of a fitting (at any point) .............................................................10

7.5 Dimensions of integrated spigot end ................................................................................................................................11

8 Mechanical characteristics .....................................................................................................................................................................12

8.1 Conditioning ...........................................................................................................................................................................................12

8.2 Requirements ........................................................................................................................................................................................12

8.3 Additional characteristics ...........................................................................................................................................................15

9 Physical characteristics ..............................................................................................................................................................................15

9.1 Conditioning ...........................................................................................................................................................................................15

9.2 Requirements ........................................................................................................................................................................................15

10 Chemical characteristics ...........................................................................................................................................................................16

11 Marking .......................................................................................................................................................................................................................16

11.1 General ........................................................................................................................................................................................................16

11.2 Minimum required marking of pipes ................................................................................................................................16

Annex A (informative) Specific characteristics for ring stiffness of polyethylene reinforced

with short glass fibres (PE-sGF) piping systems for industrial applications ......................................18

Annex B (informative) Relationship between PN, MRS, Si and SIDR ................................................................................20

Bibliography .............................................................................................................................................................................................................................21

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ISO/DIS 22101-2:2020(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.

The procedures used to develop this document and those intended for its further maintenance are

described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the

different types of ISO documents should be noted. This document was drafted in accordance with the

editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).

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. Details of

any patent rights identified during the development of the document will be in the Introduction and/or

on the ISO list of patent declarations received (see www .iso .org/ patents).

Any trade name used in this document is information given for the convenience of users and does not

constitute an endorsement.

For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and

expressions related to conformity assessment, as well as information about ISO's adherence to the

World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www .iso .org/

iso/ foreword .html.

This document was prepared by Technical Committee ISO/TC 138, Plastics pipes, fittings and valves for

the transport of fluids, Subcommittee SC 03, Plastics pipes and fittings for industrial applications.

ISO 22101 consists of the following parts, under the general title Polyethylene reinforced with short glass

fibres (PE-sGF) piping systems for industrial applications:
Part 1: General
Part 2: Pipes
Part 3: Fittings
Part 5: Fitness for purpose of the system

Any feedback or questions on this document should be directed to the user’s national standards body. A

complete listing of these bodies can be found at www .iso .org/ members .html.
iv © ISO 2020 – All rights reserved
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ISO/DIS 22101-2:2020(E)
Introduction

The pipe systems which consist of pipes produced by adding short glass fibres into high density

polyethylene resins are called polyethylene reinforced with short glass fibres (PE-sGF) piping systems.

The physical and mechanical properties are influenced by short glass fibre orientation. This document

is applicable to pipe inside diameter from 200 mm to 2000 mm with integrated socket and spigot fusion

joint. The PE-sGF system is intended to be used for general purpose fluids supply (e.g.: chemical plants,

industrial sewerage engineering, power plants, agricultural production plants, water treatment).

For the material subject of this document the mechanical performances are obtained on the basis of

standards dedicated to thermoplastics, the geometrical characteristics are defined exclusively for this

[1]
material in analogy to ISO 4065 .
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DRAFT INTERNATIONAL STANDARD ISO/DIS 22101-2:2020(E)
Polyethylene reinforced with short glass fibres (PE-sGF)
piping systems for industrial applications —
Part 2:
Pipes
1 Scope

This International Standard is applicable to polyethylene reinforced with short glass fibre [PE-sGF]

pipes manufactured by spiral cross winding method used in above and below ground for the conveyance

of liquid fluids as well as solid matter in fluids for industrial applications such as the following:

— chemical plant;
— industrial sewerage engineering;
— power engineering (cooling and general-purpose water supply);
— agricultural production plants;
— water treatment.

In conjunction with the other parts of ISO 22101, it applies to PE-sGF pipes, their joints with each other,

with other PE-sGF components, and to components from other materials intended for use under the

following conditions :
a) allowable operating pressure (PFA) up to and including 25 bar ;
b) operating temperature of 20 °C as the reference temperature

NOTE 1 For other operation temperatures, guidance is given in ISO/CD 22101-1: Annex B.

NOTE 2 If needed, national regulations for specific applications (e.g. water treatment) apply. This standard is

not applicable to drinking water application.

Other application areas are permitted if the requirements of this International Standard and applicable

national requirements are fulfilled.

National regulations in respect of fire behaviour and explosion risk are applicable.

2 Normative references

The following documents, in whole or in part, are normatively referenced in this document and are

indispensable for its application. For dated references, only the edition cited applies. For undated

references, the latest edition of the referenced document (including any amendments) applies.

ISO 3, Preferred numbers — Series of preferred numbers

ISO 527-1, Plastics — Determination of tensile properties — Part 1: General principles

ISO 1167-1, Thermoplastics pipes, fittings and assemblies for the conveyance of fluids — Determination of

the resistance to internal pressure — Part 1: General method

ISO 1167-2, Thermoplastics pipes, fittings and assemblies for the conveyance of fluids — Determination of

the resistance to internal pressure — Part 2: Preparation of pipe test pieces
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ISO/DIS 22101-2:2020(E)

ISO 2505, Thermoplastics pipes — Longitudinal reversion — Test method and parameters

ISO 3126, Plastics piping systems — Plastics components — Determination of dimensions

ISO 4433-1, Thermoplastics pipes — Resistance to liquid chemicals — Classification — Part 1: Immersion

test method

ISO 4433-2, Thermoplastics pipes — Resistance to liquid chemicals — Classification — Part 2: Polyolefin pipes

ISO 6259-1, Thermoplastics pipes — Determination of tensile properties — Part 1: General test method

ISO 6259-3, Thermoplastics pipes — Determination of tensile properties — Part 3: Polyolefin pipes

ISO 9969, Thermoplastics pipes — Determination of ring stiffness

ISO 11357-6, Plastics — Differential scanning calorimetry (DSC) — Part 6: Determination of oxidation

induction time (isothermal OIT) and oxidation induction temperature (dynamic OIT)

ISO 11922-1, Thermoplastics pipes for the conveyance of fluids — Dimensions and tolerances — Part 1:

Metric series

ISO 15494, Plastics piping systems for industrial applications — Polybutene (PB), polyethylene (PE),

polyethylene of raised temperature resistance (PE-RT), crosslinked polyethylene (PE-X), polypropylene

(PP) — Metric series for specifications for components and the system

ISO/CD 22101-1, Polyethylene reinforced with short glass fibres (PE-sGF) piping systems for industrial

applications — Part 1: General

ISO PWI 22101-5, Polyethylene reinforced with short glass fibres (PE-sGF) piping systems for industrial

applications — Part 5: Fitness for purpose of the system
3 Terms and definitions

For the purposes of this document, the terms and definitions given in ISO/CD 22101-1:2019 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 http:// www .electropedia .org/
3.1
electrofusion socket fitting

glass fibre reinforced polyethylene (PE-sGF) fitting which contains one or more integral heating

elements that are capable of transforming electrical energy into heat to realize a fusion joint with a

spigot end or a pipe
3.2
spigot end fitting

glass fibre reinforced polyethylene (PE-sGF) fitting where the outside diameter of the spigot end is

equal to the socket inside diameter, d , of the corresponding pipe
3.3
voltage regulation

control of energy supplied during the fusion process of an electrofusion fitting by means of the voltage

parameter
3.4
intensity regulation

control of energy supplied during the fusion process of an electrofusion fitting by means of the current

parameter
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ISO/DIS 22101-2:2020(E)
4 Symbols and abbreviated terms

For the purposes of this document, the symbols and abbreviated terms given in ISO/CD 22101-1.

5 Material

The material from which the pipe is made shall be in accordance with ISO/CD 22101-1.

6 General characteristics
6.1 Appearance

When viewed without magnification the internal surfaces of pipes, sockets and spigots shall be

smooth, clean and free from scoring, cavities, and other surface defects to an extent that would prevent

conformity of the pipe to this standard. When applicable the pipe ends shall be cut cleanly and square

to the axis of the pipe.
6.2 Colour
The pipes shall be black.
7 Geometrical characteristics
7.1 Measurements

The dimensions of the pipe, of the socket length of the pipe for welding, and of the integrated spigot

length shall be measured in accordance with ISO 3126, where applicable. In the case of dispute the

measurements of dimensions shall be made not less than 24 h after manufacture after being conditioned

for at least 4 h at (23±2 ) °C.
7.2 Mean inside diameter and out-of-roundness (ovality)

The mean inside diameters d , and the out-of-roundness (ovality) shall be in accordance with Table 1.

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ISO/DIS 22101-2:2020(E)
Table 1 — Mean inside diameter and out-of-roundness (ovality)
Dimensions in millimeters
Nominal inside
Maximum
Nominal size Mean inside diameter
out-of-roundness
Diameter
DN/ID
(ovality)
d D D
in im,min im,max
200 200 200 208 8
300 300 300 308 10
400 400 400 408 14
500 500 500 508 17
600 600 600 610 21
700 700 700 711 24
800 800 800 813 28
900 900 900 915 31
1000 1000 1000 1017 35
1100 1100 1100 1119 38
1200 1200 1200 1220 42
1300 1300 1300 1322 45
1400 1400 1400 1423 49
1500 1500 1500 1525 53
1600 1600 1600 1627 56
1800 1800 1800 1830 63
2000 2000 2000 2034 70

Tolerances for intermediate are calculated based on the following formula, rounding calculated values down to the

nearest 1 mm: d =d +(d ∙ 0,017) but ≧d + 8 mm.
im,max in in in
Out of roundness (ovality) is calculated according to ISO 11922-1.
7.3 Wall thicknesses and their tolerances

Minimum wall thicknesses, listed in Table 2, are not including non-structural layer of outer and inner

polyethylene, minimum 1,5 mm each for colouring, protection against UV and chemical degradation.

Alternatively other diameters and pressures may be used; the corresponding wall thickness is then

calculated according to the applicable formula.

The PN values in Table 2 are based on C=1,60. Higher safety coefficients may be agreed upon between

the manufacturer and the purchaser, see also Annex B.
4 © ISO 2020 – All rights reserved
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ISO/DIS 22101-2:2020(E)
Table 2 — Pressure rating and wall thickness
Dimensions in millimetres
Pipe series
SIDR 9 SIDR 10 SIDR 11 SIDR 12
S 5 S 5,5 S 6 S 6,5
i i i i
Nominal pressure, PN in bar
PE-sGF 200/20 PN 25 PN 23 PN 21 PN 19
a, b, c, d
Nominal size Wall thicknesses
e e e e e e e e
DN/ID
min max min max min max min max
200 22,6 27,9 20,3 25,4 18,5 23,4 16,9 21,7
300 33,9 40,4 30,5 36,7 27,7 33,6 25,4 31,1
400 45,0 52,6 40,5 47,7 36,8 43,6 33,8 40,2
500 56,1 64,8 50,5 58,7 45,9 53,6 42,1 49,4
600 67,8 77,7 61,0 70,2 55,5 64,1 50,8 59,0
700 78,9 89,9 71,0 81,2 64,5 74,1 59,2 68,2
800 90,0 102,1 81,0 92,2 73,6 84,1 67,5 77,4
900 101,1 114,3 91,0 114,8 82,7 94,1 75,8 86,5
1000 112,8 127,2 101,5 125,8 92,3 104,6 84,6 96,1
1100 123,9 139,4 111,5 136,8 101,4 114,6 92,9 105,3
1200 135,0 151,6 121,5 147,8 110,5 124,6 101,3 114,5
1300 146,1 163,8 131,5 159,3 119,5 134,6 109,6 123,6
1400 161,0 171,9 142,0 170,3 129,1 145,1 118,3 133,3
1500 168,9 188,9 152,0 181,3 138,2 155,1 126,7 142,4
1600 180,0 201,1 162,0 203,9 147,3 165,1 135,0 151,6
1800 202,8 226,2 182,5 225,9 165,9 185,6 152,1 170,4
2000 225,0 250,6 202,5 142,3 184,1 205,6 168,8 188,7

Minimum wall thicknesses are calculated based on SIDR values that are derived from Renard Series R20 according

to ISO 3.
Tolerances in accordance with grade V of ISO 11922-1.

For practical reasons, a minimum wall thickness of 3,9 mm included non-structural layer is recommended for

electrofusion jointing and lining applications.
See also Annex B for actual calculated values.
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ISO/DIS 22101-2:2020(E)
Table 2 (continued)
Dimensions in millimetres
Pipe series
SIDR 13 SIDR 16 SIDR 20 SIDR 24
S 7,0 S 8,5 S 10,5 S 12,5
i i i i
Nominal pressure, PN in bar
PE-sGF 200/20 PN 18 PN 15 PN 12 PN 10
a, b, c, d
Nominal size Wall thicknesses
e e e e e e e e
DN/ID
min max min max min max min max
200 15,6 20,3 12,7 17,1 10,2 14,3 8,5 12,4
300 23,5 28,9 19,1 24,1 15,3 19,9 12,7 17,1
400 31,2 37,4 25,3 30,9 20,3 25,4 16,9 21,7
500 38,8 45,8 31,6 37,8 25,3 30,9 21,0 26,2
600 46,9 54,7 38,1 45,0 30,5 36,7 25,4 31,1
700 54,6 63,2 44,4 51,9 35,5 42,2 29,6 35,6
800 62,3 71,6 50,6 58,8 40,5 47,7 33,8 40,2
900 70,0 80,1 56,9 65,7 45,5 53,2 37,9 44,8
1000 78,1 89,0 63,4 72,9 50,8 58,9 42,3 49,6
1100 85,8 97,4 69,7 79,8 55,8 64,4 46,5 54,2
1200 93,5 105,9 75,9 86,6 60,8 69,9 50,6 58,8
1300 101,2 114,4 82,2 93,5 65,8 75,4 54,8 63,4
1400 109,2 123,3 88,8 100,7 71,0 81,2 59,2 68,2
1500 116,9 131,7 95,0 107,6 76,0 86,7 63,3 72,8
1600 124,6 140,2 101,3 114,5 81,0 92,2 67,5 77,4
1800 140,4 157,5 114,1 128,6 91,3 103,5 76,0 86,7
2000 155,8 174,4 126,6 142,3 101,3 114,5 84,4 95,9

Minimum wall thicknesses are calculated based on SIDR values that are derived from Renard Series R20 according

to ISO 3.
Tolerances in accordance with grade V of ISO 11922-1.

For practical reasons, a minimum wall thickness of 3,9 mm included non-structural layer is recommended for

electrofusion jointing and lining applications.
See also Annex B for actual calculated values.
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ISO/DIS 22101-2:2020(E)
Table 2 (continued)
Dimensions in millimetres
Pipe series
SIDR 28 SIDR 32 SIDR 36 SIDR 40
S 14,5 S 16,5 S 18,5 S 20,5
i i i i
Nominal pressure , PN in bar
PE-sGF 200/20 PN 9 PN 8 PN 7 PN 6
a, b, c, d
Nominal size Wall thicknesses
e e e e e e e e
DN/ID
min max min max min max min max
200 7,3 11,1 6,3 10,1 5,6 9,3 5,1 8,7
300 10,9 15,1 9,5 13,6 8,5 12,4 7,6 11,5
400 14,5 19,0 12,7 17,0 11,3 15,5 10,1 14,2
500 18,0 22,9 15,8 20,5 14,0 18,5 12,6 17,0
600 21,8 27,1 19,1 24,1 16,9 21,7 15,3 19,9
700 25,4 31,0 22,2 27,5 19,7 24,8 17,8 22,6
800 28,9 34,9 25,3 30,9 22,5 27,9 20,3 25,4
900 32,5 38,9 28,4 34,4 25,3 30,9 22,8 28,1
1000 36,3 43,0 31,7 38,0 28,2 34,1 25,4 31,0
1100 39,8 46,9 34,8 41,4 31,0 37,2 27,9 33,8
1200 43,4 50,8 38,0 44,9 33,8 40,2 30,4 36,5
1300 47,0 54,8 41,1 48,3 36,5 43,3 32,9 39,3
1400 50,7 58,9 44,4 51,9 39,4 46,5 35,5 42,2
1500 54,3 62,8 47,5 55,4 42,2 49,5 38,0 44,9
1600 57,9 66,7 50,6 58,8 45,0 52,6 40,5 47,7
1800 65,2 74,8 57,0 65,8 50,7 58,9 45,6 53,3
2000 72,3 82,7 63,3 72,7 56,3 65,0 50,6 58,8

Minimum wall thicknesses are calculated based on SIDR values that are derived from Renard Series R20 according

to ISO 3.
Tolerances in accordance with grade V of ISO 11922-1.

For practical reasons, a minimum wall thickness of 3,9 mm included non-structural layer is recommended for

electrofusion jointing and lining applications.
See also Annex B for actual calculated values.
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ISO/DIS 22101-2:2020(E)
Table 2 (continued)
Dimensions in millimetres
Pipe series
SIDR 44 SIDR 48 SIDR 52
S 22,5 S 24,5 S 26,5
i i i
Nominal pressure, PN in bar
PE-sGF 200/20 PN 5,5 PN 5 PN 4,5
a, b, c, d
Nominal size Wall thicknesses
e e e e e e
DN/ID
min max min max min max
200 4,6 8,2 4,2 7,8 3,9 7,4
300 6,9 10,7 6,4 10,1 5,9 9,6
400 9,2 13,2 8,4 12,4 7,8 11,7
500 11,5 15,7 10,5 14,7 9,7 13,8
600 13,9 18,4 12,7 17,1 11,7 16,0
700 16,1 20,9 14,8 19,4 13,7 18,1
800 18,4 23,4 16,9 21,7 15,6 20,2
900 20,7 25,9 19,0 24,0 17,5 22,4
1000 23,1 28,5 21,1 26,4 19,5 24,6
1100 25,3 31,0 23,2 28,7 21,4 26,7
1200 27,6 33,5 25,3 30,9 23,4 28,8
1300 29,9 36,0 27,4 33,2 25,3 30,9
1400 32,3 38,6 29,6 35,6 27,3 33,1
1500 34,5 41,1 31,7 37,9 29,2 35,3
1600 36,8 43,6 33,8 40,2 31,2 37,4
1800 41,5 48,7 38,0 44,9 35,1 41,7
2000 46,0 53,7 42,2 49,5 38,9 45,9

Minimum wall thicknesses are calculated based on SIDR values that are derived from Renard Series

R20 according to ISO 3.
Tolerances in accordance with grade V of ISO 11922-1.

For practical reasons, a minimum wall thickness of 3,9 mm included non-structural layer is

recommended for electrofusion jointing and lining applications.
See also Annex B for actual calculated values.
7.4 Dimensions of integrated electrofusion socket
7.4.1 Diameters and lengths of electrofusion sockets

When measured in accordance with 7.1, the diameters and lengths of electrofusion sockets (see

Figure 1) shall conform to Tables 3 and Table 4.
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ISO/DIS 22101-2:2020(E)
Key

D is the “mean inside diameter in the fusion zone” measured in a plane parallel to the plane of the mouth at a

distance of L + 0,5 L
3 2
D is the DN/ID of the pipe
L is the “socket length” of the pipe end equal to spigot length
L is the length of the fusion zone

L is the distance > 20mm, between the mouth entrance and the beginning of the fusion zone

Figure 1 — Dimensions of electrofusion socket fittings
Table 3 — Dimensions of electrofusion socket fittings
Dimensions in millimetres
Nominal DN/ID Socket length Fusion zone
diameter
of the fitting
D D L L
2,min 2,max 1,min 2,min
200 200 205 147 24
300 300 308 152 36
400 400 408 157 47
500 500 508 162 57
600 600 610 168 68
700 700 711 172 77
800 800 813 177 85
900 900 915 183 93
1000 1000 1017 188 102
1100 1100 1119 193 110
1200 1200 1220 198 118
1300 1300 1322 203 125
1400 1400 1423 208 132
1500 1500 1525 213 138
1600 1600 1627 218 145
1800 1800 1830 228 160
2000 2000 2034 238 173
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ISO/DIS 22101-2:2020(E)
Table 4 — Electrofusion socket dimensions
Dimensions in millimetres
SIDR of the electrofusion socket
9 11 13 16 20 24 28 32 36 44 52
Nominal
diameter Design socket
of the fitting
200 254 246 240 235 235 235 235 235 235 235 235
300 379 366 360 360 360 360 360 360 360 360 360
400 501 485 473 462 461 461 461 461 461 461 461
500 623 603 589 574 571 571 571 571 571 571 571
600 752 727 710 692 677 672 672 672 672 672 672
700 874 845 825 805 787 784 784 784 784 784 784
800 996 963 941 917 897 888 888 888 888 888 888
900 1118 1081 1056 1030 1007 992 990 990 990 990 990
1000 1247 1206 1177 1148 1123 1106 1102 1102 1102 1102 1102
1100 1369 1324 1293 1260 1233 1214 1201 1201 1201 1201 1201
1200 1491 1442 1408 1373 1343 1322 1308 1299 1299 1299 1299
1300 1613 1560 1523 1485 1453 1431 1415 1403 1394 1381 1378
1400 1748 1684 1644 1604 1568 1544 1527 1515 1505 1491 1488
1500 1864 1802 1760 1716 1678 1653 1635 1621 1617 1617 1617
1600 1991 1926 1880 1834 1793 1766 1747 1732 1721 1705 1704
1800 2237 2163 2112 2059 2014 1983 1961 1945 1933 1933 1933
2000 2481 2399 2343 2284 2234 2200 2176 2158 2144 2124 2124

For joint connecting reason with other piping system, SIDR shall be provided.

The mean inside diameter of the fitting in the middle of the fusion zone, D shall not be less than d .

1 n

The manufacturer shall declare minimum and maximum values of D and determine their suitability

for joint assembly and fitness for purpose of the system testing in accordance with ISO PWI 22101-5.

In the case of a fitting having sockets of differing sizes, each one shall conform to the requirements for

the corresponding nominal diameter.
7.4.2 Wall thicknesses

In order to prevent stress concentrations, any changes in wall thickness of the fitting body shall be

gradual.

The wall thickness of the body of the fitting at any point, e, shall be greater than or equal to e of the

min

corresponding pipe when inserted inside the fitting with the same MRS at a depth greater than 2L /3.

In case of wall thickness design different from as indicated above, fittings and associated fusion joints

shall additionally meet the requirements given in 8.2.
7.4.3 Out-of-roundness of the bore of a fitting (at any point)

When a fitting leaves the site of the manufacturer, the out-of-roundness of the bore of a fitting at any

point shall not exceed 0,015 dn.
10 ©
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