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CEN

EN 1092-1:2018/prA1

(Amendment)

Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, PN designated - Part 1: Steel flanges

Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, PN designated - Part 1: Steel flanges

This European Standard for a single series of flanges specifies requirements for circular steel flanges in PN designations PN 2,5 to PN 400 and nominal sizes from DN 10 to DN 4000.
This European Standard specifies the flange types and their facings, dimensions, tolerances, threading, bolt sizes, flange jointing face surface finish, marking, materials, pressure/ temperature ratings and approximate flange masses.
For the purpose of this European Standard, "flanges" include also lapped ends and collars.
This European Standard applies to flanges manufactured in accordance with the methods described in Table 1.
Non-gasketed pipe joints are outside the scope of this European Standard.

Flansche und ihre Verbindungen - Runde Flansche für Rohre, Armaturen, Formstücke und Zubehörteile, nach PN bezeichnet - Teil 1: Stahlflansche

Brides et leurs assemblages - Brides circulaires pour tubes, appareils de robinetterie, raccords et accessoires, désignées PN - Partie 1: Brides en acier

Prirobnice in prirobnični spoji - Okrogle prirobnice za cevi, ventile, fitinge in pribor z oznako PN - 1. del: Jeklene prirobnice - Dopolnilo A1

General Information

Status
Not Published
Publication Date
07-Mar-2024
ICS
23.040.60 - Flanges, couplings and joints
Technical Committee
CEN/TC 74 - Flanges and their joints
Drafting Committee
CEN/TC 74/WG 2 - Steel flanges
Current Stage
4060 - Closure of enquiry - Enquiry
Start Date
23-Feb-2023
Due Date
13-Jan-2023
Completion Date
23-Feb-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
Mandate
M/071 - Mandate to CEN for standardization in the field of Pressure equipment
M/601 - COMMISSION IMPLEMENTING DECISION of 1.3.2024 on a standardisation request to the European Committee for Standardization and the European Committee for Electrotechnical Standardization as regards pressure equipment and assemblies in support of Directive 2014/68/EU of the European Parliament and of the Council
Ref Project
SIST EN 1092-1:2018/oprA1:2022 - Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, PN designated - Part 1: Steel flanges

Relations

Amends
EN 1092-1:2018 - Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, PN designated - Part 1: Steel flanges
Effective Date
24-Oct-2018

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EN 1092-1:2018/oprA1:2022EN 1092-1:2018/oprA1:2022
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EN 1092-1:2018/oprA1:2022
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SLOVENSKI STANDARD
01-december-2022
Prirobnice in prirobnični spoji - Okrogle prirobnice za cevi, ventile, fitinge in pribor
z oznako PN - 1. del: Jeklene prirobnice - Dopolnilo A1
Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, PN
designated - Part 1: Steel flanges
Flansche und ihre Verbindungen - Runde Flansche für Rohre, Armaturen, Formstücke
und Zubehörteile, nach PN bezeichnet - Teil 1: Stahlflansche
Brides et leurs assemblages - Brides circulaires pour tubes, appareils de robinetterie,
raccords et accessoires, désignées PN - Partie 1: Brides en acier
Ta slovenski standard je istoveten z: EN 1092-1:2018/prA1
ICS:
23.040.60 Prirobnice, oglavki in spojni Flanges, couplings and joints
elementi
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
EUROPEAN STANDARD
EN 1092-1:2018
NORME EUROPÉENNE
EUROPÄISCHE NORM
prA1
December 2022
ICS
English Version
Flanges and their joints - Circular flanges for pipes, valves,
fittings and accessories, PN designated - Part 1: Steel
flanges
Brides et leurs assemblages - Brides circulaires pour Flansche und ihre Verbindungen - Runde Flansche für
tubes, appareils de robinetterie, raccords et Rohre, Armaturen, Formstücke und Zubehörteile, nach
accessoires, désignées PN - Partie 1: Brides en acier PN bezeichnet - Teil 1: Stahlflansche
This draft amendment is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 74.

This draft amendment A1, if approved, will modify the European Standard EN 1092-1:2018. If this draft becomes an amendment,
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for inclusion of
this amendment into the relevant national standard without any alteration.

This draft amendment 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. EN 1092-1:2018/prA1:2022 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
1 Modifications to European foreword . 4
2 Modifications to Normative references . 4
3 Modifications to Table 7 . 5
4 Modifications to Figure 5 . 10
5 Modifications to Figure 6 . 11
6 Modifications to Figure 7 . 12
7 Modifications to Figure 8 . 13
8 Modifications to Figure 9 . 14
9 Modifications to Figure 10 . 15
10 Modifications to Table 9 . 16
11 Modifications to Annex C . 18
12 Modifications to Annex D . 30
13 Modification to G.2.2 . 31
14 Modifications to G.3.1 . 31
15 Modifications to Annex I . 32

European foreword
This document (EN 1092-1:2018/prA1:2022) 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.
In comparison with the previous edition, the following technical modifications have been made:
— Editorial modifications
— Modification and update the clause “Normative references”
— Modifications to Table 7 “Synoptic table”
— Modifications on some figures
— Modifications to Annex C “Masses of flanges”
— Modifications to Annex D “Table D.1”
— Modifications to Annex G “G.3.1 General”
— Modifications to Annex I “Table I.3”
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of EU Directive(s).
For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of
EN 1092-1:2018.
1 Modifications to European foreword
Change d) to the following:
“d) flanges Type 05 for PN 160 to PN 400 were implemented.”
2 Modifications to Normative references
Add the following:
EN 10222-4:2017+A1, Steel forgings for pressure purposes - Part 4: Weldable fine grain steels with high
proof strength
EN 10216-2:2013+A1:2019, Seamless steel tubes for pressure purposes - Technical delivery conditions -
Part 2: Non-alloy and alloy steel tubes with specified elevated temperature properties
EN 10216-5:2021, Seamless steel tubes for pressure purposes - Technical delivery conditions - Part 5:
Stainless steel tubes
EN 10217-3:2019, Welded steel tubes for pressure purposes - Technical delivery conditions - Part 3: Electric
welded and submerged arc welded alloy fine grain steel tubes with specified room, elevated and low
temperature properties
EN 10217-7:2021, Welded steel tubes for pressure purposes - Technical delivery conditions - Part 7:
Stainless steel tubes
EN 13445-3:2021, Unfired pressure vessels - Part 3: Design
EN ISO 3452-1:2021, Non-destructive testing - Penetrant testing - Part 1: General principles (ISO 3452-
1:2021)
EN ISO 6892-1:2019, Metallic materials - Tensile testing - Part 1: Method of test at room temperature (ISO
6892-1:2019)
EN ISO 11666:2018, Non-destructive testing of welds - Ultrasonic testing - Acceptance levels (ISO
11666:2018)
EN ISO 17640:2018, Non-destructive testing of welds - Ultrasonic testing - Techniques, testing levels, and
assessment (ISO 17640:2018)
3 Modifications to Table 7
Replace Table 7:
Table 7 — Synoptic table
DN
Flange type or collar type
PN
dimensions identical with PN 6 X
2,5
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
dimensions identical with dimensions identical with
10 X X X X X X X X X X X X X
PN 40 PN 16
dimensions identical with
16 X X X X X X X X X X X X X X X X X
PN 40
a) Type 01
25 dimensions identical with PN 40 X X X X X X X  X X X
40 X X X X X X X X X X X X X X X X X
dimensions identical with
63 X X X X X X X X X X X
PN 100
100 X X X X X X X X X X X X X X X X
2,5  dimensions identical with PN 6
6 X X X X X X X X X X X X X X X X X X X  X
dimensions identical with dimensions identical with
10 X X X X X X X X
PN 40 PN 16
dimensions identical with
16 X X X X X X X X X X X X X X
PN 40
b) Types 02 and 32
25 dimensions identical with PN 40 X X X X X X X  X
40 X X X X X X X X X X X X X X X X X X X  X
2,5  dimensions identical with PN 6
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
dimensions identical with dimensions identical with
10 X X X X X X X X X X X X X
PN 40 PN 16
1 000
1 200
1 400
1 600
1 800
2 000
2 200
2 400
2 600
2 800
3 000
3 200
3 400
3 600
3 800
4 000
DN
Flange type or collar type
PN
dimensions identical with
16 X X X X X X X X X X X X X X X X X
X
PN 40
25 dimensions identical with PN 40 X X X X X X X X  X X X

40 X X X X X X X X X X X X X X X X X
c) Types 02 and 35
2,5 dimensions identical with PN 6
6 X X X X X X X X X X X X X X X X X X X
10 dimensions identical with PN 16 X X X X X

16 X X X X X X X X X X X X X X X X X
d) Type 02 and 36
dimensions
dimensions identical with PN 16 identical with
2,5
PN 10
dimensions
6 dimensions identical with PN 16 identical with
PN 10
e) Type 02 and 33/37
10 dimensions identical with PN 16 X X X
16 X X X X X X X X X X X X X
dimensions identical with dimensions identical with
10 X X X X X X X X
PN 40 PN 16
dimensions identical with
16 X X X X X X X X X X X X X X
PN 40
25 dimensions identical with PN 40 X X X X X X X  X
f) Type 04 and 34
40 X X X X X X X X X X X X X X X X X
1 000
1 200
1 400
1 600
1 800
2 000
2 200
2 400
2 600
2 800
3 000
3 200
3 400
3 600
3 800
4 000
DN
Flange type or collar type
PN
2,5  dimensions identical with PN 6 X
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
dimensions identical with dimensions identical with
10 X X X X X X X X X X X X X
PN 40 PN 16
dimensions identical with
16 X X X X X X X X X X X X X X X X X X
PN 40
25 dimensions identical with PN 40 X X X X X X X  X
40 X X X X X X X X X X X X X X X X X X X  X
63 Use PN 100 X X X X X X X X X X X
100 X X X X X X X X X X X X X X X X
160 X X  X  X X X X X X X X X X
g) Type 05
250 X  X  X X X X X X X X X
320 X X  X  X X X X X X X X X
400 X X  X  X X X X X X X X
2,5  dimensions identical with PN 6 X X X X X X X X X X X X X X X X X
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
dimensions identical with dimensions identical with
10 X X X X X X X X X X X X X X X X X X X X X X
PN 40 PN 16
h) Type 11
dimensions identical with
16 X X X X X X X X X X X X X X X X X X X X X X
X
PN 40
dimensions identical with PN 10

1 000
1 200
1 400
1 600
1 800
2 000
2 200
2 400
2 600
2 800
3 000
3 2
...

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