prEN 10344
(Main)Malleable cast iron fittings with compression ends for steel pipes
Malleable cast iron fittings with compression ends for steel pipes
This document specifies the requirements for the design, performance and testing of fittings made of malleable cast iron (see also Clause 5 Materials) with compression ends for steel pipes.
This document applies to steel piping systems for different application fields, such as supply and distribution of gas, water for general purposes (e.g. irrigation) as well as for human consumption, aqueous liquids and pressurized air.
This document contains requirements and tests relating to compression fittings which can be connected to smooth walled steel pipes. The fittings can also incorporate other types of connection, such as threaded ends in conformance with EN 10226-1, flanged ends, compression ends for connection for pipes other than steel, and can also take on various structural shapes, such as, straight adaptor piece, elbow or T-piece. Their range of sizes covers nominal sizes DN 10 to DN 100 (fitting size 3/8 to 4).
Tempergussfittings mit Klemmanschlüssen für Stahlrohre
Dieses Dokument legt die Anforderungen an die Konstruktion, Gebrauchseigenschaften und Prüfung von Fittings aus Temperguss (siehe auch Abschnitt 5, Werkstoffe) mit Klemmanschlüssen für Stahlrohre fest.
Dieses Dokument ist anwendbar für Rohrleitungssysteme aus Stahl für unterschiedliche Anwendungsbereiche, z. B. Verteilung und Versorgung mit Gas, Wasser für allgemeine Zwecke (z. B. Bewässerung) sowie für den menschlichen Gebrauch, wässrige Flüssigkeiten und Druckluft.
Dieses Dokument enthält Anforderungen und Prüfungen in Bezug auf Fittings mit Klemmanschluss, die mit glattendigen Stahlrohren verbunden werden können. Die Fittings können auch andere Verbindungsarten umfassen, z. B. Gewindeverbindungen nach EN 10226-1, sowie Flansch- und Klemmverbindungen für den Anschluss an Rohre aus anderen Werkstoffen als Stahl und können auch in unterschiedlichen Formen ausgeführt sein, z. B. als gerader Übergang, Winkel oder T-Stück. Der Größenbereich umfasst die Nennweiten DN 10 bis DN 100 (Fittinggröße 3/8 bis 4).
Raccords à compression en fonte malléable pour tubes en acier
Le présent document spécifie les exigences relatives à la conception, aux performances et aux essais des raccords en fonte malléable (voir également l'Article 5, Matériaux) avec extrémités à compression pour les tubes en acier.
Le présent document s'applique aux systèmes de canalisation en acier utilisables dans différents domaines, comme l'alimentation et la distribution en gaz, l’eau à des fins générales (par exemple l’irrigation), ainsi que pour la consommation humaine, les liquides aqueux et l'air sous pression.
Le présent document contient des exigences et des essais relatifs aux raccords à compression qui peuvent être raccordés à des tubes en acier à paroi lisse. Les raccords peuvent également inclure d'autres types de raccordements, tels que des extrémités filetées conformes à l'EN 10226-1, des extrémités à brides, des extrémités à compression pour les tubes autres qu'en acier et ils peuvent également prendre différentes formes de structure, telles que la pièce d’adaptateur droite, le coude ou la pièce en T. Leur gamme de dimensions couvre les dimensions nominales DN 10 à DN 100 (dimension des raccords 3/8 à 4).
Fitingi iz temprane železove litine s prižemnimi priključki za železne cevi
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-junij-2024
Fitingi iz temprane železove litine s prižemnimi priključki za železne cevi
Malleable cast iron fittings with compression ends for steel pipes
Tempergussfittings mit Klemmanschlüssen für Stahlrohre
Raccords à compression en fonte malléable pour tubes d'acier
Ta slovenski standard je istoveten z: prEN 10344
ICS:
23.040.40 Kovinski fitingi Metal fittings
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
DRAFT
EUROPEAN STANDARD
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2024
ICS 23.040.40
English Version
Malleable cast iron fittings with compression ends for steel
pipes
Raccords à compression en fonte malléable pour tubes Tempergussfittings mit Klemmanschlüssen für
d'acier Stahlrohre
This draft European Standard is submitted to CEN members for second enquiry. It has been drawn up by the Technical
Committee CEN/TC 459/SC 10.
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
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 10344:2024 E
worldwide for CEN national Members.
Contents Page
European foreword . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 6
4 Types of fittings . 9
5 Materials . 9
5.1 General . 9
5.2 Material of the fitting body . 9
5.3 Elastomers . 9
6 Corrosion protection. 9
6.1 General . 9
6.2 Hot dip galvanizing .10
6.2.1 General .10
6.2.2 Chemical composition of the hot dip zinc coating .10
6.2.3 Coating mass per surface unit and layer thickness.10
6.2.4 Surface conditions of the hot dip zinc coating .10
6.3 Non-metallic coating .10
6.4 Dangerous substances .11
6.4.1 General .11
6.4.2 Hot dip zinc coating .11
6.4.3 Dispatch conditions of finished fittings .11
6.4.4 Non-metallic coating .11
7 Design .11
7.1 General .11
7.2 Geometrical characteristics .11
7.3 Minimum bore .12
7.4 Pipe threads .12
7.5 Surfaces .12
7.6 Transition fittings .12
7.6.1 Transition with jointing thread .12
7.6.2 Transition for polyethylene pipe .12
7.6.3 Transition for other pipes .12
7.7 Load transmission .12
8 Performance requirements .13
8.1 Yield strength .13
8.2 Tightness .13
8.2.1 Internal pressure strength .13
8.2.2 Leak tightness .13
8.3 Pressure and temperature limits .13
8.4 Dimensional tolerances .13
8.5 Reaction to fire .14
8.6 Durability .14
8.6.1 Durability of fittings .14
8.6.2 Durability of elastomeric seals .14
8.7 Dangerous substances .14
9 Test requirements .14
9.1 General . 14
9.2 Component test . 16
9.2.1 Testing of malleable cast iron . 16
9.2.2 Testing of plastic components . 16
9.2.3 Testing of sealing materials . 17
9.2.4 Testing of hot dip zinc coating . 17
9.2.5 Analysis of polycyclic aromatic hydrocarbons . 17
9.2.6 Testing of non-metallic coating . 17
9.2.7 Material tests . 17
9.2.8 Visual inspection . 18
9.2.9 Geometrical characteristics . 18
9.2.10 Leak tightness of fitting body . 18
9.3 Assembly tests . 18
9.3.1 General . 18
9.3.2 Leak tightness under internal pressure . 18
9.3.3 Leak tightness under pressure cycling . 19
9.3.4 Leak tightness after repeated movements . 19
9.3.5 Resistance to pull-out. 22
9.3.6 Resistance to vibrations . 23
9.3.7 Leak tightness after temperature changes . 23
9.3.8 Behaviour in case of negative pressure (vacuum) . 23
9.3.9 Leak tightness under high temperature for gas installation inside of buildings . 24
9.3.10 Surface protection – Testing by salt spray test . 24
10 Assessment of conformity . 24
11 Designation of fittings . 24
11.1 Elements of the designation for ordering . 24
11.2 Additional notes on designation of size . 25
11.3 Examples of designation . 25
12 Marking . 25
Annex A (normative) Surface protection - Salt spray test . 27
Bibliography . 28
European foreword
This document (prEN 10344:2024) has been prepared by Technical Committee CEN/TC 459 “ECISS —
European Committee for Iron and Steel Standardization” , the secretariat of which is held by AFNOR.
This document is currently submitted to the second CEN Enquiry.
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