prEN 1759-4

Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, Class designated - Part 4: Aluminium alloy flanges

This document specifies requirements for Class designated circular flanges for pipes, valves, fittings and accessories made from aluminium alloy in the range of DN 15 to DN 600 (NPS 1/2 to NPS 24) and Class 150 to Class 300 (see Table 1).
This document specifies the types of flanges and their facings, dimensions and tolerances, bolt sizes, surface finish of jointing faces, marking and materials together with associated pressure temperature (p/T) ratings.
The flanges are intended to be used for piping as well as for pressure vessels.

Flansche und ihre Verbindungen - Runde Flansche für Rohre, Armaturen, Formstücke und Zubehörteile, nach Class bezeichnet - Teil 4: Flansche aus Aluminiumlegierungen

Dieses Dokument legt Anforderungen an Class-bezeichnete kreisförmige Flansche für Rohre, Armaturen, Rohrformstücke und Zubehörteile fest. Die Flansche werden hergestellt aus Aluminiumlegierung im Bereich DN 15 bis DN 600 (NPS 1/2 bis NPS 24) und Class 150 bis Class 300 (siehe Tabelle 1).
Dieses Dokument legt die Typen der Flansche und ihre Dichtflächen, die Maße und Toleranzen, die Schraubengrößen, die Oberflächengüte der Dichtflächen, die Kennzeichnung, die Werkstoffe zusammen mit zugehörigen Druck/Temperatur-Zuordnungen fest.
Die Flansche sind vorgesehen für den Einsatz sowohl bei Rohrleitungen als auch bei Druckbehältern.

Brides et leurs assemblages - Brides circulaires pour tubes, appareils de robinetterie, raccords et accessoires, désignées Class - Partie 4 : Brides en alliages d’aluminium

Le présent document spécifie les prescriptions applicables aux brides circulaires désignées Class pour tubes, appareils de robinetterie, raccords et accessoires en alliages d’aluminium dans les gammes de
DN 15 à DN 600 (NPS 1/2 à NPS 24) et pour les Class 150 à Class 300 (voir Tableau 1).
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 et les matériaux ainsi que les relations pression/température (p/T) associées.
Les brides sont prévues pour être utilisées sur les réseaux de tuyauteries ainsi que sur les appareils à pression.

Prirobnice in prirobnični spoji - Okrogle prirobnice za cevi, ventile, fitinge in pribor z oznako Class - 4. del: Prirobnice iz aluminijevih zlitin

General Information

• Status: Not Published
• Publication Date: 21-Mar-2023
• ICS: 23.040.60 - Flanges, couplings and joints
• Technical Committee: CEN/TC 74 - Flanges and their joints
• Drafting Committee: CEN/TC 74 - Flanges and their joints
• Current Stage: 4060 - Closure of enquiry - Enquiry
• Start Date: 26-Mar-2022
• Due Date: 26-Jul-2021
• Completion Date: 26-Mar-2022
• 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
• Ref Project: oSIST prEN 1759-4:2022 - Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, Class designated - Part 4: Aluminium alloy flanges

Relations

• Revises: EN 1759-4:2003 - Flanges and their joint - Circular flanges for pipes, valves, fittings and accessories, class designated - Part 4: Aluminium alloy flanges
• Effective Date: 18-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
oSIST prEN 1759-4:2022
01-januar-2022
Prirobnice in prirobnični spoji - Okrogle prirobnice za cevi, ventile, fitinge in pribor
z oznako Class - 4. del: Prirobnice iz aluminijevih zlitin
Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories,
Class designated - Part 4: Aluminium alloy flanges
Flansche und ihre Verbindungen - Runde Flansche für Rohre, Armaturen, Formstücke
und Zubehörteile, nach Class bezeichnet - Teil 4: Flansche aus Aluminiumlegierungen
Brides et leurs assemblages - Brides circulaires pour tubes, appareils de robinetterie,
raccords et accessoires, désignés Class - Partie 4 : Brides en alliages d’aluminium
Ta slovenski standard je istoveten z: prEN 1759-4
ICS:
23.040.60 Prirobnice, oglavki in spojni Flanges, couplings and joints
elementi
77.150.10 Aluminijski izdelki Aluminium products
oSIST prEN 1759-4:2022 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN 1759-4:2022


DRAFT
EUROPEAN STANDARD
prEN 1759-4
NORME EUROPÉENNE

EUROPÄISCHE NORM

December 2021
ICS 23.040.60 Will supersede EN 1759-4:2003
English Version

Flanges and their joints - Circular flanges for pipes, valves,
fittings and accessories, Class designated - Part 4:
Aluminium alloy 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, désignés Class - Partie 4 : Brides en Class bezeichnet - Teil 4: Flansche aus
alliages d'aluminium Aluminiumlegierungen
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, Turkey 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
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 1759-4:2021 E
worldwide for CEN national Members.

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oSIST prEN 1759-4:2022
prEN 1759-4:2021 (E)
Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Designations . 5
4.1 Range of nominal sizes . 5
4.2 Range of Class designations . 5
4.3 Types of flanges .
...