EN 1254-20:2021

Copper and copper alloys - Plumbing fittings - Part 20: Definitions, thread dimensions, test methods, reference data and supporting information

This document contains definitions, thread dimension, reference data (minimum bore), supporting information (assembling instructions) and describes the test methods referenced by other parts of the EN 1254 series.
Thread dimensions comprise: wall thickness at threaded portions of fittings, dimensions of tail pipe ends for swivel fittings, dimensions of gas union connectors, thread dimensions and thread profile.
Test methods comprise: leak tightness under internal hydrostatic pressure, leak tightness under internal pneumatic pressure, integrity of fabricated fitting bodies or having an 'as cast' microstructure, resistance to pull out of joints to metallic tubes, resistance of joints with metallic tube to vibration, resistance of joints to static flexural force, leak tightness of joints under vacuum, the resistance of joints to temperature cycling, detecting non-pressed fitting ends, resistance to stress corrosion, detection of a carbon film on the surface of copper fittings, determination of mean depth of dezincification, resistance of joints to pressure cycling, disconnection and re-use, determining if the diameter and/or the length of engagement of a capillary end is/are within the specified tolerance, determining the minimum length of engagement of an integral solder or brazing ring socket having a formed groove.

Kupfer und Kupferlegierungen - Fittings - Teil 20: Definitionen, Gewindemaße, Prüfverfahren, Referenzdaten und ergänzende Informationen

Dieses Dokument enthält Definitionen, Gewindeabmessungen, Referenzdaten (Mindest Durchgangsquer-schnitt), hilfreiche Informationen (Montageanweisungen) und beschreibt die in anderen Teilen der Normenreihe EN 1254 zitierten Prüfverfahren.
Gewindemaße umfassen: Wanddicke an Gewindeteilen der Fittings, Maße der Endrohranschlüsse für Schwenkfittings, Maße der Gas Verschraubungsanschlüsse, Gewindemaße und Gewindeprofil.
Prüfverfahren umfassen: Dichtheit unter hydrostatischem Innendruck, Dichtheit unter pneumatischem Innendruck, Beständigkeit von Rohrverbindungen gegen statische Biegebeanspruchung, Ausziehwiderstand von Rohrverbindungen, Vakuumdichtheit von Rohrverbindungen, Temperaturwechselbeständigkeit von Verbindungen, Schwingungsbeständigkeit von Verbindungen mit Metallrohren, Integrität der Fittingkörper mit Formgussgefüge bzw. der gefertigten Fittingkörper, Spannungsrisskorrosionsbeständigkeit, Auffinden eines Kohlenstoff Films auf der Oberfläche von Kupferfittings, Bestimmung der mittleren Entzinkungstiefe, Druckwechselbeständigkeit von Verbindungen, Lösen und Wiederverwenden, Bestimmung, ob der Durchmesser und/oder die Lötlänge eines Kapillarfittings innerhalb der festgelegten Toleranz liegt, Bestimmung der Mindest Lötlänge eines Innenlötendes mit integriertem Weich  bzw. Hartlötring und ausgeformter Nut.

Cuivre et alliages de cuivre - Raccords - Partie 20 : Définitions, dimensions de filetage, méthodes d'essai, données de référence et informations complémentaires

Le présent document contient les définitions, les dimensions du filetage, les données de référence
(passage minimal), les informations supports (instructions d’assemblage) et décrit les méthodes d'essai
citées en référence par d’autres parties de la série EN 1254.
Les dimensions du filetage comprennent : l’épaisseur de paroi au niveau des parties filetées des raccords,
les dimensions des extrémités des tuyaux de sortie pour les raccords à écrou tournant, les dimensions
des rccords union pour le gaz, les dimensions du filetage et le profil du filetage.
Les méthodes d’essai comprennent : étanchéité sous pression hydrostatique interne, étanchéité sous
pression pneumatique interne, intégrité des corps de raccords ayant une microstructure « moulée » ou
mécanosoudés, résistance à la traction des raccordements des tubes métalliques, résistance des
raccordements avec tube métallique aux vibrations, résistance des raccordements à la force de flexion
statique, étanchéité des raccordements sous vide, résistance des raccordements aux cycles thermiques,
détection des extrémités de raccords non sertis, résistance à la corrosion sous contrainte, détection d’un
film de carbone sur la surface des raccords en cuivre, détermination de la profondeur moyenne de
dézincification, résistance des raccordements aux cycles de pression, déconnexion et réutilisation,
détermination si le diamètre et/ou la longueur de l’emboîtement d'une extrémité capillaire est/sont
incluses dans les tolérances spécifiées, détermination de la longueur d’emboîtement minimale d’une
extrémité femelle à anneau de brasure (tendre ou forte) incorporé pourvue d'une rainure façonnée.

Baker in bakrove zlitine - Fitingi - 20. del: Definicije, mere navojev, preskusne metode, referenčni podatki in dodatne informacije

General Information

• Status: Published
• Publication Date: 25-May-2021
• Withdrawal Date: 29-Nov-2021
• ICS: 23.040.40 - Metal fittings
• Technical Committee: CEN/TC 133 - Copper and copper alloys
• Drafting Committee: CEN/TC 133/WG 8 - Fittings
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 26-May-2021
• Due Date: 27-Nov-2020
• Completion Date: 26-May-2021
• 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: 98/83/EC - Quality of water intended for human consumption
• Mandate: M/131 - Mandate to CEN/CENELEC concerning the execution of standardization work for harmonized standards on pipes, tanks and ancillaries, not in contact with water intended for human consumption
• Mandate: M/136 - Mandate to CEN/CENELEC concerning the execution of standardization work for harmonized standards on construction products in contact with water intended for human consumption
• Ref Project: SIST EN 1254-20:2021 - Copper and copper alloys - Plumbing fittings - Part 20: Definitions, thread dimensions, test methods, reference data and supporting information

Relations

• Amended By: EN 1254-20:2021/prA1 - Copper and copper alloys - Plumbing fittings - Part 20: Definitions, thread dimensions, test methods, reference data and supporting information
• Effective Date: 17-Apr-2024

Standards Content (Sample)

SLOVENSKI STANDARD
01-julij-2021
Baker in bakrove zlitine - Fitingi - 20. del: Definicije, mere navojev, preskusne
metode, referenčni podatki in dodatne informacije
Copper and copper alloys - Plumbing fittings - Part 20: Definitions, thread dimensions,
test methods, reference data and supporting information
Kupfer und Kupferlegierungen - Fittings - Teil 20: Definitionen, Gewindeabmessungen,
Prüfverfahren, Referenzdaten und ergänzende Informationen
Cuivre et alliages de cuivre - Raccords - Partie 20 : Définitions, dimensions de filetage,
méthodes d'essai, données de référence et informations complémentaires
Ta slovenski standard je istoveten z: EN 1254-20:2021
ICS:
23.040.40 Kovinski fitingi Metal fittings
77.150.30 Bakreni izdelki Copper products
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 1254-20
EUROPEAN STANDARD
NORME EUROPÉENNE
May 2021
EUROPÄISCHE NORM
ICS 23.040.40
English Version
Copper and copper alloys - Plumbing fittings - Part 20:
Definitions, thread dimensions, test methods, reference
data and supporting information
Cuivre et alliages de cuivre - Raccords - Partie 20 : Kupfer und Kupferlegierungen - Fittings - Teil 20:
Définitions, dimensions de filetage, méthodes d'essai, Definitionen, Gewindeabmessungen, Prüfverfahren,
données de référence et informations complémentaires Referenzdaten und ergänzende Informationen
This European Standard was approved by CEN on 23 November 2020.

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. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists 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.
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. EN 1254-20:2021 E
worldwide for CEN national Members.

Contents Page
European foreword . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 7
4 Thread dimensions . 10
4.1 Wall thickness at threaded portions of fittings . 10
4.2 Dimensions of tail pipe ends for swivel fittings . 11
4.3 Dimensions of gas union connectors. 14
4.4 Threaded end dimensions . 16
4.5 Minimum bore and cross-sectional area of fittings . 22
5 Test method for leak tightness under internal hydrostatic pressure. 26
5.1 Introduction . 26
5.2 Principle . 27
5.3 Apparatus . 27
5.4 Test piece . 27
5.5 Procedure . 28
6 Test method for leak tightness under internal pneumatic pressure . 28
6.1 Introduction . 28
6.2 Principle . 28
6.3 Apparatus . 29
6.4 Test piece . 29
6.5 Procedure . 30
7 Integrity of fabricated fitting bodies or having an 'as cast' microstructure . 31
7.1 Introduction . 31
7.2 Principle . 31
7.3 Apparatus . 31
7.4 Test piece . 31
7.5 Procedure . 32
8 Test method for resistance to pull out of joints to metallic tubes . 32
8.1 Introduction . 32
8.2 Principle . 32
8.3 Apparatus . 32
8.4 Test assembly . 33
8.5 Procedure . 33
9 Test method for the resistance of joints with metallic tube to vibration . 33
9.1 Introduction . 33
9.2 Principle . 33
9.3 Apparatus . 34
9.4 Test assembly . 34
9.5 Procedure . 35
10 Test method for the resistance of joints to static flexural force . 35
10.1 Introduction . 35
10.2 Principle . 35
10.3 Apparatus . 35
10.4 Test piece . 35
10.5 Procedure . 36
11 Test method for leak tightness of joints under vacuum . 37
11.1 Introduction . 37
11.2 Principle . 37
11.3 Apparatus . 37
11.4 Test piece . 38
11.5 Procedure . 38
12 Test method for the resistance of joints to temperature cycling (liquid applications) . 39
12.1 Introduction . 39
12.2 Principle . 39
12.3 Apparatus . 39
12.4 Test assembly . 39
12.5 Procedure . 41
13 Test method for the resistance of joints to temperature cycling (fuel gas
applications) . 41
13.1 Introduction . 41
13.2 Principle . 42
13.3 Apparatus . 42
13.4 Test assembly . 42
13.5 Procedure . 42
14 Method for detecting non-pressed fitting ends. 43
14.1 Introduction . 43
14.2 Principle . 43
14.3 Apparatus . 43
14.4 Test piece . 44
14.5 Procedure . 44
14.6 Results . 44
15 Determination of resistance to stress corrosion .
...