prEN 1092-2

Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, PN designated - Part 2: Cast iron flanges

This document specifies requirements for circular flanges made from ductile, grey and malleable cast iron for DN 10 to DN 4000 and PN 2,5 to PN 100. See 4.1 and 4.2 for information regarding allowed DN and PN.
This document specifies the types of flanges and their facings, dimension and tolerances, bolt sizes, surface finish of jointing faces, marking, testing, quality assurance and materials together with associated pressure/temperature (p/T) ratings.

Flansche und ihre Verbindungen - Runde Flansche für Rohre, Armaturen, Formstücke und Zubehörteile, nach PN bezeichnet - Teil 2: Gußeisenflansche

Dieses Dokument legt die Anforderungen an runde Flansche aus duktilem Gusseisen, und aus Temperguss von DN 10 bis DN 4 000 und PN 2,5 bis PN 100 fest. Siehe 4.1 und 4.2 für Informationen über zulässige DN und PN.
Dieses Dokument legt die Flanschtypen und ihre Dichtflächen, Maße, Toleranzen, Schraubengrößen, Oberflächenbeschaffenheit der Dichtflächen, Kennzeichnung, Prüfung, Qualitätssicherung und Werkstoffe zusammen mit den zugehörigen Druck/Temperatur-Zuordnungen fest.

Brides et leurs assemblages - Brides circulaires pour tuyaux, appareils de robinetterie, raccords et accessoires, désignées PN - Partie 2 : Brides en fonte

Le présent document spécifie les prescriptions pour les brides circulaires en fonte ductile, grise et malléable pour DN 10 à DN 4000 et PN 2,5 à PN 100. Voir 4.1 et 4.2 pour les informations concernant les DN et PN autorisés.
Le présent document spécifie les types de brides et leurs portées de joints, les dimensions et tolérances, les dimensions de boulonnerie, les états de surface des portées de joints, le marquage, les essais, l’assurance qualité et les matériaux ainsi que les relations pression/température (p/T) associées.

Prirobnice in prirobnični spoji - Okrogle prirobnice za cevi, ventile, fitinge in pribor z oznako PN - 2. del: Prirobnice iz litega železa

General Information

• Status: Not Published
• Publication Date: 15-Apr-2024
• ICS: 23.040.60 - Flanges, couplings and joints
• Technical Committee: CEN/TC 74 - Flanges and their joints
• Drafting Committee: CEN/TC 74/WG 3 - Cast iron flanges
• Current Stage: 4599 - Dispatch of FV draft to CMC - Finalization for Vote
• Start Date: 31-May-2023
• Due Date: 17-Apr-2023
• Completion Date: 31-May-2023
• Directive: 2014/68/EU - Directive 2014/68/EU of the European Parliament and of the Council of 15 May 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of pressure equipment
• Directive: 305/2011 - Regulation (eu) No 305/2011 of the European Parliament and of the Council of 9 march 2011 laying down harmonised conditions for the marketing of construction products and repealing council directive 89/106/eec
• Directive: 90/531/EEC - Procurement procedures of entities operating in the water, energy, transport and telecommunications sectors
• Directive: 93/38/EEC - Procurement procedures of entities operating in the water, energy, transport and telecommunications sectors
• Mandate: M/071 - Mandate to CEN for standardization in the field of Pressure equipment
• Mandate: M/109 - Mandate to CEN/CENELEC concerning the execution of standardization work for harmonized standards on fire alarm/detection, fixed firefighting, fire and smoke control and explosion suppression products
• Ref Project: oSIST prEN 1092-2:2022 - Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, PN designated - Part 2: Cast iron flanges

Relations

• Revises: EN 1092-2:1997 - Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, PN designated - Part 2: Cast iron flanges
• Effective Date: 19-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
oSIST prEN 1092-2:2022
01-september-2022

Prirobnice in prirobnični spoji - Okrogle prirobnice za cevi, ventile, fitinge in pribor

z oznako PN - 2. del: Prirobnice iz litega železa

Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, PN

designated - Part 2: Cast iron flanges
Flansche und ihre Verbindungen - Runde Flansche für Rohre, Armaturen, Formstücke
und Zubehörteile, nach PN bezeichnet - Teil 2: Gußeisenflansche

Brides et leurs assemblages - Brides circulaires pour tuyaux, appareils de robinetterie,

raccords et accessoires, désignées PN - Partie 2 : Brides en fonte
Ta slovenski standard je istoveten z: prEN 1092-2
ICS:
23.040.60 Prirobnice, oglavki in spojni Flanges, couplings and joints
elementi
oSIST prEN 1092-2:2022 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN 1092-2:2022
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oSIST prEN 1092-2:2022
DRAFT
EUROPEAN STANDARD
prEN 1092-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
August 2022
ICS 23.040.60 Will supersede EN 1092-2:1997
English Version
Flanges and their joints - Circular flanges for pipes, valves,
fittings and accessories, PN designated - Part 2: Cast iron
flanges

Brides et leurs assemblages - Brides circulaires pour Flansche und ihre Verbindungen - Runde Flansche für

tuyaux, appareils de robinetterie, raccords et Rohre, Armaturen, Formstücke und Zubehörteile, nach

accessoires, désignées PN - Partie 2 : Brides en fonte PN bezeichnet - Teil 2: Gußeisenflansche

This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee

CEN/TC 74.

If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations

which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other

language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC

Management Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,

Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,

Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and

United Kingdom.

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.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without

notice and shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 1092-2:2022 E

worldwide for CEN national Members.
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oSIST prEN 1092-2:2022
prEN 1092-2:2022 (E)
Contents Page

European foreword ............................................................................................................................................ 3

Introduction .......................................................................................................................................................... 4

1 Scope .......................................................................................................................................................... 5

2 Normative references .......................................................................................................................... 5

3 Terms and definitions ......................................................................................................................... 6

4 Designation and types ......................................................................................................................... 7

4.1 Range of DN ............................................................................................................................................. 7

4.2 Range of PN designations ................................................................................................................... 7

4.3 Types of flanges ..................................................................................................................................... 7

4.4 Standard designation .......................................................................................................................... 8

4.5 Information to be supplied by the purchaser ............................................................................. 8

5 General requirements ......................................................................................................................... 8

5.1 Flange materials .................................................................................................................................... 8

5.2 Repairs by welding ............................................................................................................................... 8

5.3 Bolting ....................................................................................................................................................... 8

5.4 Gaskets ...................................................................................................................................................... 8

5.5 Pressure/Temperature ratings (p/T) ........................................................................................... 9

5.5.1 General...................................................................................................................................................... 9

5.5.2 p/T Rating of flanged joints............................................................................................................... 9

5.6 Dimensions.............................................................................................................................................. 9

5.7 Flange facings ......................................................................................................................................... 9

5.7.1 Types of facings ..................................................................................................................................... 9

5.7.2 Jointing face finish .............................................................................................................................. 10

5.8 Spot facing or back facing ................................................................................................................ 10

5.9 Tolerances ............................................................................................................................................. 11

5.10 Marking and stamping ...................................................................................................................... 11

5.10.1 Marking .................................................................................................................................................. 11

5.10.2 Stamping ................................................................................................................................................ 12

5.10.3 Omission of markings ........................................................................................................................ 12

5.11 Quality assurance ............................................................................................................................... 12

5.11.1 General.................................................................................................................................................... 12

5.11.2 Quality assurance system ................................................................................................................ 12

Annex A (normative) Information to be supplied by the purchaser ............................................. 59

Annex B (Informative) Notes to Tables 6 to 13 ..................................................................................... 60

Bibliography ....................................................................................................................................................... 61

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oSIST prEN 1092-2:2022
prEN 1092-2:2022 (E)
European foreword

This document (prEN 1092-2:2022) has been prepared by Technical Committee CEN/TC 74 “Flanges and

their joints”, the secretariat of which is held by DIN.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 1092-2:1997.

In comparison with the previous edition, the following technical modifications have been made:

— update of Normative references;
— introduction of new DN and PN;
— specification regarding repairs and face finish.
EN 1092 will consist of the following four parts:
— Part 1: Steel flanges
— Part 2: Cast iron flanges
— Part 3: Copper alloy flanges
— Part 4: Aluminium alloy flanges

This document is related to ISO 7005-2:1988 and ISO 2531:2009, as types of flanges and their mating

dimensions are compatible with those flanges of the same DN and PN.

The mating dimensions of the flanges of this standard are compatible with those flanges of other

materials in accordance with the other parts of EN 1092 series.
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oSIST prEN 1092-2:2022
prEN 1092-2:2022 (E)
Introduction

The product which is in permanent or temporary contact with water, intended for human consumption,

does not adversely affect the quality of the drinking water and does not contravene the EC Directives and

EFTA Regulations on the quality of drinking water.
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oSIST prEN 1092-2:2022
prEN 1092-2:2022 (E)
1 Scope

This document specifies requirements for circular flanges made from ductile, grey and malleable cast iron

for DN 10 to DN 4000 and PN 2,5 to PN 100. See 4.1 and 4.2 for information regarding allowed DN and

PN.

This document specifies the types of flanges and their facings, dimension and tolerances, bolt sizes,

surface finish of jointing faces, marking, testing, quality assurance and materials together with associated

pressure/temperature (p/T) ratings.
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.

EN 545:2010, Ductile iron pipes, fittings, accessories and their joints for water pipelines - Requirements and

test methods

EN 1092-1:2018, Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, PN

designated - Part 1: Steel flanges
EN 1370:2012, Founding — Examination of surface condition
EN 1561:2011, Founding - Grey cast irons
EN 1563:2018, Founding - Spheroidal graphite cast irons

EN ISO 4287:2005, Geometrical product specifications (GPS) — Surface texture: Profile method —

Terms, definitions and surface texture parameters (ISO 4287)

EN ISO 5458:2018, Geometrical product specifications (GPS) - Geometrical tolerancing - Pattern and

combined geometrical specification (ISO 5458:2018)
ISO 185:2005, Grey cast irons — Classification

ISO 887:2000, Plain washers for metric bolts, screws and nuts for general purposes — General plan

ISO 1083:2018, Spheroidal graphite cast irons — Classification
ISO 5922:2005, Malleable cast iron
ISO 7005-2:1988, Metallic flanges — Part 2: Cast iron flanges
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oSIST prEN 1092-2:2022
prEN 1092-2:2022 (E)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

• IEC Electropedia: available at https://www.electropedia.org/
• ISO Online browsing platform: available at https://www.iso.org/obp
3.1
flange

flat circular end of a pipe component extending perpendicular to its axis, with bolt holes equally spaced

on a circle (see Figure 1)

Note to entry A flange may be fixed (i.e. integrally cast, screwed or welded on) or adjustable; an adjustable flange

comprises a ring, in one or several parts assembled together, which bears on an end joint hub and can be freely

rotated around the pipe axis before jointing
3.2
DN (Nominal size)

alphanumeric designation of size for components of a pipework system, which is used for reference

purposes and which comprises the letters DN followed by a dimensionless whole number that is

indirectly related to the physical size, in millimetres, of the bore or outside diameter of the end

connections

Note 1 to entry: The number following the letters DN does not represent a measurable value and should not be used

for calculation purposes except where specified in the relevant standard.

Note 2 to entry: In those standards which use the DN designation system, any relationship between DN and

component dimensions should be given, e.g. DN/OD or DN/ID.
[SOURCE: EN ISO 6708:1995, 2.1]
3.3

alphanumeric designation which is used for reference purposes related to a combination of mechanical

and dimensional characteristics of a component of a pipework system and which comprises the letters

PN followed by a dimensionless number

Note 1 to entry: The number following the letters PN does not represent a measurable value and should not be used

for calculation purposes except where specified in the relevant standard.

Note 2 to entry: The designation PN is not meaningful unless it is related to the relevant component standard

number.

Note 3 to entry: The maximum allowable pressure of a pipework component depends on the PN number, the

material and the design of the component, its maximum allowable temperature, etc. The relevant European

Component standards include tables of specified pressure/temperature ratings or, in minimum, include rules how

to determine pressure/temperature ratings.

Note 4 to entry: It is intended that all components with the same PN and DN designations have the same mating

dimensions for compatible flange types.
[SOURCE: EN 1333:2006, 2.1]
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oSIST prEN 1092-2:2022
prEN 1092-2:2022 (E)
3.4
ductile iron
cast iron in which graphite is present substantially in spheroidal form
3.5
grey iron
cast iron in which graphite is present substantially in lamellar form
3.6
malleable iron

cast iron in which graphite is present substantially in nodular form (temper carbon), and can be partially

or wholly decarburized
3.7
joint

connection between the flanged ends of piping systems components in which a gasket is used to effect a

seal
4 Designation and types
4.1 Range of DN

DN 10 – DN 15 – DN 20 – DN 25 – DN 32 – DN 40 – DN 50 – DN 60 – DN 65 – DN 80 – DN 100 – DN 125 -

DN 150 – DN 200 – DN 250 – DN 300 – DN 350 – DN 400 – DN 400 – DN 500 – DN 600 – DN 700 – DN 800

– DN 900 – DN 1000 - DN 1100 – DN 1200 – DN 1400 – DN 1500 – DN 1600 – DN 1800 – DN 2000 – DN

2200 – DN 2400 – DN 2500 – DN 2600 – DN 2800 – DN 3000 – DN 3200 – DN 3400 – DN 3600 – DN 3800

– DN 4000.

The range of DN applicable to each flange type and to each PN shall be as specified in Tables 2 to 4 as

appropriate.
4.2 Range of PN designations
PN 2,5 – PN 6 – PN 10 – PN 16 – PN 25 – PN 40 – PN 63 – PN 100.
4.3 Types of flanges
Figure 1 illustrates flanges identified according to type:
05: blank flange
11: weld-neck flange
12: hubbed slip-on flange for welding
13: hubbed threaded flange
14: hubbed socket welding flange
16: adjustable flange
21: integral flange

NOTE By agreement between customer and manufacturer, an integral flange, modified as follows, can be

supplied:
a) bolt hole diameters and flange facing diameter in accordance with 1092-1:2018
b) for ductile iron, flange thickness to be as grey iron flanges
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oSIST prEN 1092-2:2022
prEN 1092-2:2022 (E)
Such flanges shall be designated as type 21-2.

Figure 2 illustrates facing types A and B, which are used where applicable in conjunction with flanges

shown in Figure 1 (see 5.7.1).
4.4 Standard designation
Flanges conforming to this standard shall be designated as follows:
a) term: flange;
b) number of this standard: EN 1092-2;
c) DN (see 4.1);
d) PN (see 4.2);
e) number of flange type (see 4.3);
f) material type and grade (see 5.1);
g) flange facing type for malleable cast iron (see 5.7.1).

EXAMPLE Designation of a weld-neck flange DN100, PN 40, type 11, material designated type MI (malleable

iron), with grade B30-06 and facing type A.
Flange EN 1092-2/DN100/PN40/11/MI B30-06/A
4.5 Information to be supplied by the purchaser
The information to be supplied by the purchaser shall be as given in Annex A.
5 General requirements
5.1 Flange materials

Flanges shall be manufactured from the materials specified in Table 15. Material shall be selected

according to their field of application (environment, temperature, pressure and size).

5.2 Repairs by welding

When necessary, flanges may be repaired, in order to remove surface imperfections and localized and

visible defects. Repairs should not be accepted when metallurgy concern occurs. Repairs are carried out

according to the manufacturer’s written procedure.
5.3 Bolting

The bolting shall be chosen by the user according to the pressure, temperature, flange material and

gasket. For joints comprising at least one grey iron flange it is recommended that bolting having a yield

strength not exceeding 240 N/mm should be used.
5.4 Gaskets

The gaskets are not within the scope of this standard. For information on types, dimensions and types of

gaskets, see relevant EN 1514 standard.
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oSIST prEN 1092-2:2022
prEN 1092-2:2022 (E)
5.5 Pressure/Temperature ratings (p/T)
5.5.1 General

The pressure/temperature ratings of the flanges manufactured from the materials specified in Table 15

shall be the allowable non-surge pressure at the temperature given in Tables 16 and 17 (ductile iron), 18

(grey iron) and 19 (malleable iron). Linear interpolation is permitted for intermediate temperatures.

NOTE The p/T rating of a flange is not necessarily the p/T rating of the whole pipework system. Gasket

materials can also impose limitation on the p/T rating of a flanged joint and the gasket manufacturer is consulted

when selecting the material of the gasket.
5.5.2 p/T Rating of flanged joints

Where two flanges in a flanged joint do not have the same p/T rating, the p/T rating of the joint at any

temperature shall not exceed the lower of the two flanges ratings at that temperature.

NOTE 1 Temperature is that of the contained fluid. Use of a temperature other than that of the contained fluid is

the responsibility of the user, subject to the requirements of any applicable code or regulation.

NOTE 2 Application of the p/T ratings given in this standard to flange joints, takes into consideration the risk of

leakage due to forces and moments developed in the connecting pipework.

NOTE 3 Owing to the nature of any thread sealing method used, additional limitations can be placed on a

threaded flange.
NOTE 4 These notes on service considerations are not intended to be exhaustive.
5.6 Dimensions

Dimensions of flanges shall be in accordance with the following Tables and Figures as appropriate:

— flanges PN 2,5: Table 6 and Figure 3;
— flanges PN 6: Table 7 and Figure 4;
— flanges PN 10: Table 8 and Figure 5;
— flanges PN 16: Table 9 and Figure 6;
— flanges PN 25: Table 10 and Figure 7;
— flanges PN 40: Table 11 and Figure 8;
— flanges PN 63: Table 12 and Figure 9;
— flanges PN 100: Table 13 and Figure 10

NOTE 1 Dimensions which are not given in this standard are determined by the manufacturer for his design of

flange.

NOTE 2 Details of attachment for welded, threaded and adjustable flanges are not within the scope of this

standard.
5.7 Flange facings
5.7.1 Types of facings

The flange facings specified (flat face type A and raised face type B) are illustrated in Figure 2 and their

raised face dimensions shall be as given in Table 5.
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oSIST prEN 1092-2:2022
prEN 1092-2:2022 (E)
Flanges made of ductile iron shall have raised faces.

Flanges made of grey iron shall have raised faces. See 5.3 for the limitations on bolting due to this

material.
Flanges made of malleable iron shall have either flat faces or raised faces.

NOTE The transition from the outside diameter of the raised face to the flange face is at the option of the

manufacturer (i.e. either a radius or chamfer can be used).
5.7.2 Jointing face finish

All flange jointing faces shall be finished in accordance with Table 1. These faces shall be compared by

visual or tactile means with reference specimens which conform with the Ra, and Rz roughness values

given in Table 1.

Flange connections, for example in drinking water applications, may usually be equipped with coated

flange surfaces for corrosion protection reasons. Table 1 does not include roughness relative to coated

surfaces.

An appropriate combination of flanges with an adequate gasket to compensate for the settling of the

coating shall be selected, e.g. rubber coated sealing ring with metal insert.

NOTE 1 It is not intended that instrument measurements are taken on the flange jointing faces: Ra and Rz values

as defined in EN ISO 4287:2005 relate to the reference specimens.

NOTE 2 Other finishes can be agreed between the manufacturer and purchaser. Table A.1 — Numerical values

of the surface finish parameters (Ra and Rz) of flange jointing faces
Table 1
Values in micrometers
Manufacturing process R R
a z
Turning 3,2 to 12,5 12,5 to 50
Other machining processes 3,2 to 6,3 12,5 to 25
As cast 3,2 to 25 -

“Turning” covers any method of machine operation producing either serrated concentric or serrated spiral

grooves.

Machining processes other than turning are permissible provided that they give a surface finish in compliance

with the Ra and Rz values specified.

“As cast” covers surfaces produced by moulding processes where the resultant casting may or may not be

subjected to shot or grit blast cleaning operations. Their roughness is assessed by comparison with reference

specimens complying with EN 1370: 2012. As cast surfaces may have serrated concentric grooves to enhance

gasket sealing efficiency. They are normally used for application where joints incorporate gaskets of readily

deformable material, e.g. rubber, application for which the above surface characteristics may also apply to the

other manufacturing processes.
5.8 Spot facing or back facing

Any spot facing or back facing required shall not reduce the flange thickness to less than the thickness

specified. When spot facing is used, the diameter shall be large enough to accommodate the outside

diameter of the equivalent normal series of washers complying with ISO 887:2000, for the bolt size being

fitted. When a flange is back faced, it is permissible for the fillet radius to be reduced but it shall not be

eliminated entirely. The bearing surfaces for the bolting shall be parallel to the flange face within 2°.

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oSIST prEN 1092-2:2022
prEN 1092-2:2022 (E)
5.9 Tolerances
The tolerances or dimensions are as specified in Table 14.
5.10 Marking and stamping
5.10.1 Marking

Blank flanges and flanges which are supplied not attached to pipeline components shall be marked as

follows:
a) DN (nominal size);
b) PN designation;
c) material identification;
d) manufacturer’s name or trade-mark
EXAMPLE DN 300 PN 16 420-5 XXX

Where a flange is subsequently used to form an integral part of a component and the component has a

lower pressure rating than that of the flange, the lower rating should be clearly marked on the component

and the lower p/T rating applies.
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oSIST prEN 1092-2:2022
prEN 1092-2:2022 (E)
5.10.2 Stamping

Where steel stamps are used, the marking shall be positioned on the outer rim of the flange. Low stress

round nose stamps shall be used.
5.10.3 Omission of markings

If a flange is too small to enable all the markings required in 5.10.1 to be marked on the flange, then

marking of nominal size may be omitted.
5.11 Quality assurance
5.11.1 General

The following quality assurance requirement applies to all types of flanges except for those delivered

attached to a pipeline component. The quality assurance requirements for those flanges are given in the

appropriate component standards.
5.11.2 Quality assurance system

The manufacturer shall operate a quality assurance system, see EN ISO 9001:2015 for further

information.
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oSIST prEN 1092-2:2022
prEN 1092-2:2022 (E)
Type 05
Blank flange
Type 11 Type 12
Weld-neck flange Hubbed slip-on flange for welding
Type 13 Type 14
Hubbed threaded flange Hubbed socket welding flange
Type 16 Type 21
Adjustable flange Integral flange
Figure 1 — Types of flanges

NOTE 1 The transition from the edge of the raised face to the flange jointing face is either by radius or chamfer

(see 5. 7.1)
NOTE 2 Type 21 flange is an integral part of some other product or component.
NOTE 3 Flanges can be designated by type number or by description.
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oSIST prEN 1092-2:2022
prEN 1092-2:2022 (E)
Table 2 — Synoptic table for ductile iron flanges
DN
Type Table PN
8 10 ←Use PN 16→ X X X X X X X X X X X X X X X X X X X
9 16 X X X X X X X X X X X X X X X X X X X X X X X X X X X
10 25 ←Use PN 40→ X X X X X X X X X X X X X X X X X X X X X
11 40 X X X X X X X X X X X X X X X X X X X X X X X X X
12 63 X X X X X X X X X X X X X X X X X X X X X X
13 100 X X X X X X X X X X X X X X X

7 6 X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X

8 10 ←Use PN 16→ X X X X X X X X
9 16 X X X X X X X X X X X X X X X X
10 25 ←Use PN40→ X X X X X X X X X X
11 40 X X X X X X X X X X X X X
12 63 X X X X X X X X X X X X X
12 8 10 ←Use PN 16→ X X X X X X X X X X X X X X X X X X X
9 16 X X X X X X X X X X X X X X X X X X X X X X X X X X X
10 25 ←Use PN 40→ X X X X X X X X X X X X X X X X X X X X X
11 40 X X X X X X X X X X X X X X X X X X X X X X X X X
12 63 X X X X X X X X X X X X X X X X X X X X X X
13 100 X X X X X X X X X X X X X X X
100
125
150
200
250
300
350
400
450
500
600
700
800
900
1000
1100
1200
1400
1500
1600
1800
2000
2200
2400
2500
2600
2800
3000
3200
3400
3600
3800
4000
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oSIST prEN 1092-2:2022
prEN 1092-2:2022 (E)
DN
Type Table PN
8 10 ←Use PN 16→ X X X X X X X X X X X X
9 16 X X X X X X X X X X X X X X X X X X X X
10 25 ←Use PN 40→ X X X X X X X X X X X X X X
11 40 X X X X X X X X X X X X X X X X
12 63 X X X X X X X X X X X X X
8 10 ←Use PN 16→ X X X X X X X X X X X X X X X X X X X
9 16 X X X X X X X X X X X X X X X X X X X X X X X X X X X
10 25 ←Use PN 40→ X X X X X X X X X X X X X X X X X X X X X
11 40 X X X X X X X X X X X X X X X X X X X X X X X X X
12 63 X X X X X X X X X X X X X X X X X X X X X X
13 100 X X X X X X X X X X X X X X X
8 10 ←Use PN 16→ X X X X X X X X
9 16 X X X X X X X X X X X X X X X X
...