SIST EN 1254-5:2021
(Main)Copper and copper alloys - Plumbing fittings - Part 5: Capillary fittings with short ends for brazing to copper tubes
Copper and copper alloys - Plumbing fittings - Part 5: Capillary fittings with short ends for brazing to copper tubes
This document specifies product characteristics, assessment methods, compliance criteria of the test results and a designation system for capillary fittings with short ends for brazing to copper tubes e.g. EN 1057, EN 13348, EN 13349, EN 12735-1, EN 12735-2, etc. These fitting ends exist in two forms: end feed fittings and integral brazing ring fittings. For the purposes of joining copper tubes, the fitting ends have a nominal diameter from 14,7 mm to 159 mm. The fittings are designed for a service lifetime up to fifty years.
The fittings are used up to the operating temperatures and corresponding maximum operating pressures as indicated in Annex A.
This document applies to copper alloy fittings. A non-exhaustive list of these copper alloys is given in CEN/TS 13388.
The capillary fittings with short ends for brazing to copper tubes are used with brazing alloys in accordance with alloys specified in EN ISO 17672.
Not all copper alloys that can be used to manufacture fittings can be brazed and those that can be brazed may require different brazing techniques (guidance is provided in in EN 1254-20:2021, Annex A).
Fittings with short ends for capillary brazing may also have threaded end connections. These threaded ends exist with metallic and with non-metallic sealing elements. For the purposes of joining with tubes, pipes, fittings or valves, the threaded ends have a size range from 1/8" to 4".
Adaptor fittings for use with copper tubes may combine short ends for capillary brazing with fitting ends defined in the other parts of EN 1254.
Capillary fittings with short ends for brazing may also have flanged end connections according to EN 1092-3.
Fittings can be produced by machining, metal forming, casting, or fabrication.
Products covered by this document are intended to be used in:
a) liquid applications:
- hot, cold or combined hot and cold water, including systems according to EN 806;
- closed heating systems according to EN 12828;
- cooling systems;
- drainage systems;
- fire protection systems including sprinkler systems according to EN 12845;
- refrigeration systems;
- supply systems for points of consumption with liquid fuels according to EN 12514.
b) gas applications:
- natural gas and liquefied petroleum gas systems with a maximum operating pressure less than or equal to 5 bar according to EN 1775;- gas line systems with an operating pressure exceeding 0,5 bar for industrial installations and exceeding 5 bar for industrial and non-industrial installations according to EN 15001-1;
- compressed air systems;
- medical gas systems according to EN ISO 7396;
- refrigeration systems.
Kupfer und Kupferlegierungen - Fittings - Teil 5: Kapillarlötfittings mit geringer Einstecktiefe zum Verbinden von Kupferrohren mittels Hartlöten
Dieses Dokument legt Produkteigenschaften, Bewertungsverfahren, Konformitätskriterien und ein Bezeichnungssystem für Kapillarfittings mit kurzen Enden zum Hartlöten von Kupferrohren fest, z. B. EN 1057, EN 13348, EN 13349, EN 12735-1, EN 12735-2 usw. Diese Fittingenden gibt es in zwei Formen: Lötfittings und Fittings mit integriertem Hartlötring. Zum Verbinden von Kupferrohren haben die Fittingenden einen Größenbereich von 14,7 mm bis 159 mm. Die Fittings sind für eine Lebensdauer von bis zu fünfzig Jahren ausgelegt.
Die Fittings werden bis zu den in Anhang A angegebenen Betriebstemperaturen und maximalen Betriebsdrücken eingesetzt.
Dieses Dokument gilt für Fittings aus Kupferlegierungen. Eine nicht vollständige Liste dieser Kupferlegierungen ist in CEN/TS 13388 enthalten.
Kapillarfittings mit kurzen Enden zum Hartlöten von Kupferrohren werden mit Hartloten nach den in EN ISO 17672 spezifizierten Legierungen verwendet.
Nicht alle Kupferlegierungen, die zur Herstellung von Fittings verwendet werden können, können hartgelötet werden, und diejenigen, die hartgelötet werden können, können andere Hartlöttechniken erfordern (Hinweise siehe prEN 1254-20:2019, Anhang A).
Kapillarfittings mit kurzen Enden zum Hartlöten von Kupferrohren dürfen auch Gewindeanschlüsse aufweisen. Diese Gewindeenden gibt es mit metallischen und mit nichtmetallischen Dichtelementen. Zum Verbinden von Rohren, Fittings oder Ventilen haben die Gewindeenden einen Größenbereich von 1/8" bis 4".
Übergangsfittings für Kupferrohre dürfen kurze Enden zum Kapillarhartlöten mit in den anderen Teilen der EN 1254 definierten Fittingenden kombinieren.
Kapillarfittings mit kurzen Enden zum Hartlöten dürfen auch Flanschendanschlüsse nach EN 1092-3 aufweisen.
Fittings können durch Bearbeiten, Metallumformen, Gießen oder Fertigen hergestellt werden.
Die unter diese Norm fallenden Produkte sind für den Einsatz bestimmt in:
a) Flüssigkeitsanwendungen:
- Warm-, Kalt- oder kombinierte Warm-/Kaltwassersysteme nach EN 806;
- geschlossene Heizsysteme nach EN 12828 und Kühlsysteme;
- Entwässerungssysteme;
- Sprinkleranlagen nach EN 12845;
- Kältetechnik.
b) Gasanwendungen:
- Erdgas- und Flüssiggasanlagen mit einem maximalen Betriebsdruck von weniger als oder gleich 5 bar nach EN 1775;
- Druckluftsysteme;
- Systeme für medizinische Gase nach EN ISO 7396;
- Kältetechnik.
Cuivre et alliages de cuivre - Raccords - Partie 5 : Raccords à emboîture courte pour brasure forte par capillarité pour tubes en cuivre
Le présent document spécifie les caractéristiques de produit, les méthodes d'évaluation, les critères de
conformité des résultats d’essais et un système de désignation pour les raccords à emboîture courte pour
brasure forte par capillarité pour tubes en cuivre conformes, par exemple, aux EN 1057, EN 13348,
EN 13349, EN 12735-1, EN 12735-2, etc. Ces extrémités de raccords existent sous deux formes : raccord
d'alimentation d’extrémité et raccords à anneau de brasure forte incorporé. Pour l'assemblage de tubes
en cuivre, les extrémités de raccords ont un diamètre nominal compris entre 14,7 mm et 159 mm. Les
raccords sont conçus pour une durée de vie en service supérieure à 50 ans.
Les raccords sont utilisés jusqu'aux températures de service et aux pressions maximales de service
correspondantes indiquées à l'Annexe A.
Le présent document s'applique aux raccords en alliage de cuivre. Une liste non exhaustive de ces alliages
de cuivre figure dans la CEN/TS 13388.
Les raccords à emboîture courte pour brasure forte par capillarité pour tubes en cuivre sont utilisés avec
des alliages de brasage fort conformément aux alliages spécifiés dans l’EN ISO 17672.
Les alliages de cuivre utilisés pour fabriquer des raccords ne peuvent pas tous être assemblés par brasage
fort, et ceux qui peuvent être assemblés par brasage fort peuvent nécessiter de différentes techniques de
brasage fort (des lignes directrices sont fournies dans le l’EN 1254-20:2021, Annexe A).
Les raccords à emboîture courte pour le brasage fort par capillarité peuvent également comporter des
extrémités filetées. Ces extrémités filetées existent avec des éléments d'étanchéité métalliques et non
métalliques. Pour l'assemblage avec des tubes, des tuyaux, des raccords ou des vannes, les extrémités
filetées ont une gamme de dimensions comprise entre 1/8" et 4".
Les raccords adaptateurs utilisés avec des tubes en cuivre peuvent combiner des emboîtures courtes
pour brasure forte par capillarité avec des extrémités définies dans les autres parties de l’EN 1254.
Les raccords à emboîture courte pour brasure forte par capillarité peuvent également comporter des
raccordements à brides conformément à l’EN 1092-3.
Les raccords peuvent être fabriqués par usinage, formage des métaux, moulage ou mécanosoudage.
Les produits couverts par le présent document sont destinés à être utilisés dans :
a) les applications liquides :
- les systèmes d'eau chaude, d'eau froide ou d'eau chaude et d'eau froide combinées, y compris les
systèmes conformes à l’EN 806 ;
- les systèmes de chauffage fermés conformes à l'EN 12828 ;
- les systèmes de refroidissement ;
- les systèmes de purge ;
- les systèmes de protection contre l’incendie, y compris les systèmes d'extinction de type
sprinkleur conformes à l’EN 12845 ;
- les systèmes réfrigération ;
- les systèmes d'approvisionnement des points de consommation en combustibles liquides
conformes à l’EN 12514.
b) les applications de gaz :
- les systèmes fonctionnant au gaz naturel et des systèmes fonctionnant au gaz de pétrole liquéfiés
avec une pression maximale de service inférieure ou égale à 5 bar, conformément à l'EN 1775 ;
- les systèmes de conduites de gaz avec une pression de service supérieure à 0,5 bar pour les
installations industrielles et supérieure à 5 bar pour les installations industrielles et non
industrielles, conformément à l’EN 15001-1 ;
- les systèmes d’air comprimé ;
- les systèmes de distribution de gaz médicaux conformes à l’EN ISO 7396 ;
- les systèmes réfrigération.
Baker in bakrove zlitine - Fitingi - 5. del: Fitingi, ki imajo krajši konec prirejen za kapilarno trdo spajkanje na bakrene cevi
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-julij-2021
Nadomešča:
SIST EN 1254-5:2000
Baker in bakrove zlitine - Fitingi - 5. del: Fitingi, ki imajo krajši konec prirejen za
kapilarno trdo spajkanje na bakrene cevi
Copper and copper alloys - Plumbing fittings - Part 5: Capillary fittings with short ends for
brazing to copper tubes
Kupfer und Kupferlegierungen - Fittings - Teil 5: Kapillarlötfittings mit geringer
Einstecktiefe zum Verbinden von Kupferrohren mittels Hartlöten
Cuivre et alliages de cuivre - Raccords - Partie 5 : Raccords à emboîture courte pour
brasure forte par capillarité pour tubes en cuivre
Ta slovenski standard je istoveten z: EN 1254-5:2021
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 1254-5
EUROPEAN STANDARD
NORME EUROPÉENNE
May 2021
EUROPÄISCHE NORM
ICS 23.040.40 Supersedes EN 1254-5:1998
English Version
Copper and copper alloys - Plumbing fittings - Part 5:
Capillary fittings with short ends for brazing to copper
tubes
Cuivre et alliages de cuivre - Raccords - Partie 5 : Kupfer und Kupferlegierungen - Fittings - Teil 5:
Raccords à emboîture courte pour brasure forte par Kapillarlötfittings mit geringer Einstecktiefe zum
capillarité pour tubes en cuivre Verbinden von Kupferrohren mittels Hartlöten
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 1254-5:2021 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 6
3 Terms and definitions . 7
4 Product characteristics . 7
4.1 Internal pressure . 7
4.2 Tightness . 7
4.3 Release of dangerous substances . 7
4.4 Durability . 7
4.5 Dimensional tolerances of diameters . 8
4.6 Wall thickness for short ends for capillary brazing to copper tubes . 9
4.7 Wall thickness at threaded portions of adaptor fittings . 12
4.8 Dimensions of tail pipe ends for swivel fittings . 12
4.9 Dimensions of gas union connectors . 12
4.10 Threaded end dimensions . 12
4.11 Other adapter ends (not defined in EN 1254-20:2021) . 12
4.12 Length of engagement . 13
4.13 Bore dimensions . 14
4.14 Tube abutment . 15
4.15 Alignment of the fitting ends . 15
4.16 Shapes for tightening systems . 15
4.17 Surface condition . 15
4.18 Surface cleanliness for medical gases . 15
5 Testing, assessment and sampling methods . 16
5.1 General . 16
5.2 Internal pressure . 16
5.3 Tightness: Integrity of fabricated fitting bodies or having an 'as cast' microstructure . 16
5.4 Durability . 17
5.5 Dimensional tolerances of diameters . 17
5.6 Wall thickness for short ends for capillary brazing to copper tubes . 17
5.7 Wall thickness at threaded portions of adaptor fittings . 17
5.8 Dimensions of tail pipe ends for swivel fittings . 17
5.9 Dimensions of gas union connectors . 17
5.10 Threaded end dimensions . 18
5.11 Length of engagement . 18
5.12 Bore dimensions . 18
5.13 Alignment of the fitting ends . 18
6 Evaluation of conformity . 18
6.1 General . 18
6.2 Type testing . 18
6.3 Factory production control (FPC) . 21
7 Designation. 24
8 Marking, labelling and packaging . 24
Annex A (normative) Operating temperatures and corresponding maximum operating
pressures . 25
Bibliography . 26
European foreword
This document (EN 1254-5:2021) has been prepared by Technical Committee CEN/TC 133 “Copper and
copper alloys”, the secretariat of which is held by DIN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by November 2021, and conflicting national standards
shall be withdrawn at the latest by November 2021.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 1254-5:1998.
The main changes to EN1254-5:1998 are:
— separation of test methods into part 20.
This part of the standard (EN 1254-5) should be read in conjunction with EN 1254-20:2021.
EN 1254 comprises the following parts under the general title “Copper and copper alloys — Plumbing
fittings”:
— Part 1: Capillary fittings for soldering or brazing to copper tubes
— Part 2: Compression fittings for use with copper tubes
— Part 3: Compression fittings for use with plastics and multilayer pipes
— Part 4: Threaded fittings
— Part 5: Capillary fittings with short ends for brazing to copper tubes
— Part 6: Push-fit fittings for use with metallic tubes, plastics and multilayer pipes
— Part 7: Press fittings for use with metallic tubes
— Part 8: Press fittings for use with plastics and multilayer pipes
— Part 20: Definitions, thread dimensions, test methods, reference data and supporting information
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: 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 the
United Kingdom.
Introduction
Products complying with this document may be used for several fluids including the transport of water
intended for human consumption if they comply with the relevant national, regional or local regulatory
provisions applicable in the place of use.
1 Scope
This document specifies product characteristics, assessment methods, compliance criteria of the test
results and a designation system for capillary fittings with short ends for brazing to copper tubes e.g.
EN 1057, EN 13348, EN 13349, EN 12735-1, EN 12735-2, etc. These fitting ends exist in two forms: end
feed fittings and integral brazing ring fittings. For the purposes of joining copper tubes, the fitting ends
have a nominal diameter from 14,7 mm to 159 mm. The fittings are designed for a service lifetime up to
fifty years.
The fittings are used up to the operating temperatures and corresponding maximum operating
pressures as indicated in Annex A.
This document applies to copper alloy fittings. A non-exhaustive list of these copper alloys is given in
CEN/TS 13388.
The capillary fittings with short ends for brazing to copper tubes are used with brazing alloys in
accordance with alloys specified in EN ISO 17672.
Not all copper alloys that can be used to manufacture fittings can be brazed and those that can be
brazed may require different brazing techniques (guidance is provided in in EN 1254-20:2021,
Annex A).
Fittings with short ends for capillary brazing may also have threaded end connections. These threaded
ends exist with metallic and with non-metallic sealing elements. For the purposes of joining with tubes,
pipes, fittings or valves, the threaded ends have a size range from 1/8” to 4”.
Adaptor fittings for use with copper tubes may combine short ends for capillary brazing with fitting
ends defined in the other parts of EN 1254.
Capillary fittings with short ends for brazing may also have flanged end connections according to
EN 1092-3.
Fittings can be produced by machining, metal forming, casting, or fabrication.
Products covered by this document are intended to be used in:
a) liquid applications:
— hot, cold or combined hot and cold water, including systems according to EN 806;
— closed heating systems according to EN 12828;
— cooling systems;
— drainage systems;
— fire protection systems including sprinkler systems according to EN 12845;
— refrigeration systems;
— supply systems for points of consumption with liquid fuels according to EN 12514.
b) gas applications:
— natural gas and liquefied petroleum gas systems with a maximum operating pressure less than
or equal to 5 bar according to EN 1775;
— gas line systems with an operating pressure exceeding 0,5 bar for industrial installations and
exceeding 5 bar for industrial and non-industrial installations according to EN 15001-1;
— compressed air systems;
— medical gas systems according to EN ISO 7396;
— refrigeration systems.
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 723, Copper and copper alloys — Combustion method for determination of the carbon content on the
inner surface of copper tubes or fittings
EN 1057:2006+A1:2010, Copper and copper alloys — Seamless, round copper tubes for water and gas in
sanitary and heating applications
EN 1254-20:2021, Copper and copper alloys — Plumbing fittings — Part 20: Definitions, thread
dimensions, test methods, reference data and supporting information
EN 10226-3, Pipes threads where pressure tight joint are made on the threads — Part 3: Verification by
means of limit gauges
EN 12502-2, Protection of metallic materials against corrosion — Guidance on the assessment of
corrosion likelihood in water distribution and storage systems — Part 2: Influencing factors for copper
and copper alloys
EN ISO 6506-1, Metallic materials — Brinell hardness test — Part 1: Test method (ISO 6506-1)
EN ISO 6507-1, Metallic materials — Vickers hardness test — Part 1: Test method (ISO 6507-1)
ISO 7-2, Pipe threads where pressure-tight joints are made on the threads — Part 2: Verification by means
of limit gauges
ISO 228-2, Pipe threads where pressure-tight joints are not made on the threads — Part 2: Verification by
means of limit gauges
ISO 2859-1:1999, Sampling procedures for inspection by attributes — Part 1: Sampling schemes indexed
by acceptance quality limit (AQL) for lot-by-lot inspection
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 1254-20:2021 apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at https://www.iso.org/obp
4 Product characteristics
4.1 Internal pressure
When tested according to the method in 5.2 fittings shall show no signs of leakage or permanent
distortion.
4.2 Tightness
4.2.1 Leak tightness under internal hydrostatic pressure
Fittings assessed as indicated in 4.1 are considered to be leak tight under internal hydrostatic pressure.
4.2.2 Integrity of fabricated fitting bodies or having an 'as cast' microstructure
This requirement only applies to fitting bodies with an 'as cast' microstructure (excluding continuously
cast materials) or fabricated by welding or brazing.
When tested according to the method in 5.3 fitting bodies shall show no visual indication of leakage.
4.3 Release of dangerous substances
National regulations on dangerous substances may require verification and declaration on release, and
sometimes content, when construction products covered by this document are placed on those markets.
In the absence of European harmonized test methods, verification and declaration on release/content
should be done taking into account national provisions in the place of use.
NOTE An informative database covering European and national provisions on dangerous substances is
available at the Construction website on EUROPA accessed through: http://ec.europa.eu/growth/tools-
databases/cp-ds
4.4 Durability
4.4.1 Durability of internal pressure: Resistance to stress corrosion
Fittings manufactured from copper and copper-tin-zinc alloys (CuSnZnPb) shall be considered to be
resistant to stress corrosion according to EN 12502-2 and copper-zinc-silicon alloys containing ≥ 2 % Si
are also considered to be resistant.
Fittings manufactured from CuZn-alloys shall be considered to be resistant to stress corrosion when the
product has a hardness HBW 2,5/62,5 ≤ 110 measured according to EN ISO 6506-1 or a hardness
HV ≤ 134 measured according to EN ISO 6507-1.
Fittings manufactured from copper alloys with a zinc content of 10 % or greater not mentioned above
shall be tested and assessed according to 5.4.1, and shall show no evidence of cracking.
4.4.2 Durability of tightness: Residual carbon contamination in the bore
4.4.2.1 General
This requirement only applies for copper fittings. This requirement does not apply for copper alloy
fittings.
4.4.2.2 Carbon film
When tested according to 5.4.2.1 there shall not be any visible carbon film.
4.4.2.3 Total carbon
When tested according to 5.4.2.2 the maximum total carbon level on internal surfaces shall not exceed
1,0 mg/dm .
4.5 Dimensional tolerances of diameters
In order to achieve the capillary flow of a brazing alloy when making a connection, the dimensions of a
socket or male end shall be tightly controlled.
When assessed according to the method specified in 5.5, the diameter shall be within the tolerances
expressed in Table 1 for the relevant diameters.
Table 1 — Tolerances on the nominal diameter
Values in millimetres
a
Nominal Tolerances on the mean diameter Resulting diametrical
diameter with respect to the nominal diameter difference
D D
Outside diameter Inside diameter max. min.
of male end of socket
14,7
15 +0,04 +0,15
0,20 0,02
16 −0,05 +0,06
+0,05 +0,18
25 0,24 0,02
−0,06 +0,07
27,4
b
b
b
+0,06 +0,23
b
40,5 0,30 0,03
−0,07 +0,09
b
b
53,6
b
b
b
66,7
b
b
+0,07 +0,33
76,1
0,41 0,03
b
80 −0,08 +0,10
b
88,9
b
b
b
+0,20 +0,70
0,90 0,03
b
−0,20 +0,23
a
Arithmetical mean of two diameters at right angles in a cross-section taken anywhere on the length of the
socket or of the male end except under indented marking or in the solder or brazing alloy groove.
b
The brazing of tubes and fittings for these diameters requires more skilled techniques (further information is
available in in EN 1254-20:2021, Annex A).
4.6 Wall thickness for short ends for capillary brazing to copper tubes
When measured according to the method specified in 5.6, the minimum wall thickness shall be as
expressed in Table 2 for the relevant diameters and different forms of the material.
The minimum wall thickness requirements do not apply under embossed marking on the socket end.
In the case of integral brazing ring fittings where a groove is made within the brazing length, the
minimum wall thickness measured within or immediately adjacent to the brazing groove (see Figure 1)
shall be in accordance with dimension e' in Table 2.
end feed fitting integral brazing ring fitting integral brazing ring fitting
Key
D nominal diameter
e minimum wall thickness
e' minimum wall thickness within or immediately adjacent to the brazing ring groove
Figure 1 — Minimum wall thickness
Table 2 — Minimum wall thickness
Dimensions in millimetres
Nominal Minimum wall thickness
diameter
Wrought coppers Wrought copper alloys Cast coppers and copper
and continuous cast bar alloys
D e e' e e' e e'
14,7 0,7 0,63 1,2 0,66 1,2 0,78
15 0,7 0,63 1,2 0,66 1,2 0,78
16 0,7 0,63 1,2 0,66 1,2 0,78
18 0,8 0,72 1,4 0,77 1,4 0,91
21 0,9 0,81 1,4 0,77 1,4 0,91
22 0,9 0,81 1,4 0,77 1,5 0,97
25 0,9 0,81 1,4 0,77 1,6 1,04
27,4 0,9 0,81 1,5 0,82 1,6 1,04
28 0,9 0,81 1,5 0,82 1,8 1,17
34 1,0 0,90 1,6 0,88 1,8 1,17
35 1,0 0,90 1,6 0,88 1,8 1,17
40 1,1 0,99 1,8 0,99 2,0 1,30
40,5 1,1 0,99 1,8 0,99 2,0 1,30
42 1,1 0,99 1,8 0,99 2,0 1,30
53,6 1,2 1,08 1,9 1,04 2,3 1,49
54 1,2 1,08 1,9 1,04 2,3 1,49
64 1,4 1,26 2,0 1,10 2,4 1,56
66,7 1,4 1,26 2,0 1,10 2,4 1,56
70 1,4 1,26 2,3 1,26 2,6 1,69
76,1 1,6 1,44 2,6 1,43 2,8 1,82
80 1,8 1,62 2,8 1,54 2,9 1,88
Nominal Minimum wall thickness
diameter
Wrought coppers Wrought copper alloys Cast coppers and copper
and continuous cast bar alloys
D e e' e e' e e'
88,9 1,8 1,62 2,9 1,59 3,1 2,01
106 2,1 1,89 3,3 1,80 3,5 2,27
108 2,1 1,89 3,3 1,80 3,5 2,27
133 2,3 2,07 4,2 2,31 4,5 2,92
159 2,6 2,34 5,2 2,86 5,5 3,57
4.7 Wall thickness at threaded portions of adaptor fittings
This requirement only applies to fittings with an interface thread.
When assessed according to the method specified in 5.7 the minimum wall thickness at the interface
thread shall be as expressed in EN 1254-20:2021, 4.1 for the relevant diameters.
4.8 Dimensions of tail pipe ends for swivel fittings
This requirement only applies to tail pipe ends for swivel fittings.
When assessed according to the method specified in 5.8 the dimensions shall be as expressed in
EN 1254-20:2021, 4.2 for the thread size.
4.9 Dimensions of gas union connectors
This requirement only applies to fittings
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.
Loading comments...