EN 14423:2013+A2:2019

SLOVENSKI STANDARD
01-julij-2019
Cevne armature z objemkami za cevi za paro do 18 bar (vključno z dopolnilom A2)
Clamp type coupling assemblies for use with steam hoses rated for pressures up to 18
bar
Schlaucharmaturen mit Klemmfassung für Dampf bis 18 bar
Raccords avec colliers de serrage pour tuyaux à vapeur utilisant une pression jusqu'à 18
bar
Ta slovenski standard je istoveten z: EN 14423:2013+A2:2019
ICS:
23.040.70 Gumene cevi in armature Hoses and hose assemblies
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 14423:2013+A2
EUROPEAN STANDARD
NORME EUROPÉENNE
May 2019
EUROPÄISCHE NORM
ICS 23.040.70 Supersedes EN 14423:2013+A1:2016
English Version
Clamp type coupling assemblies for use with steam hoses
rated for pressures up to 18 bar
Raccords avec colliers de serrage pour tuyaux à vapeur Schlaucharmaturen mit Klemmfassung für Dampf bis
utilisant une pression jusqu'à 18 bar 18 bar
This European Standard was approved by CEN on 13 June 2016 and includes Amendment 2 approved by CEN on 15 January
2019.
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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, 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
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 14423:2013+A2:2019 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
1 Scope . 3
2 Normative references . 4
3 Terms and definitions . 5
4 General requirements . 6
5 Design and designation of coupling assemblies. 6
5.1 Design . 6
5.2 Ordering designation system . 8
6 Hose dimensions . 8
7 Design and dimensions . 9
7.1 General . 9
7.2 Tail end fittings . 9
7.3 Connectors . 10
7.3.1 Hose fittings with weld-neck collar (for loose flanges) (FL) . 10
7.3.2 Hose fittings with weld-neck flange (FV) . 11
7.3.3 Welding connections . 12
7.3.4 Hose fittings with union nut, thread according to EN ISO 228-1 . 12
7.3.5 Hose fittings with tapered male thread (R) . 14
7.4 Clamps . 15
8 Bolts and nuts . 18
9 Materials . 18
9.1 Tail end fittings . 18
9.2 Weld-neck collars and flanges according to EN 1092-1 . 19
9.3 Loose flanges according to EN 1092-1 . 20
9.4 Union nuts . 20
9.5 Wire ring . 20
9.6 Gaskets . 20
9.7 Clamps . 21
9.8 Bolts and nuts . 21
10 Marking . 21
10.1 Hose fittings . 21
10.2 Weld-neck collars and loose flanges . 21
10.3 Union nuts . 22
10.4 Clamps . 22
11 Type testing and quality control . 22
11.1 General . 22
11.2 Type-test . 22
11.3 Sampling . 23
12 Mounting of hose fittings . 23
Bibliography . 24
European foreword
This document (EN 14423:2013+A2:2019) has been prepared by Technical Committee CEN/TC 218
“Rubber and plastics hoses and hose assemblies”, the secretariat of which is held by BSI.
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 2019, and conflicting national
standards shall be withdrawn at the latest by November 2019.
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 includes Amendment 1, approved by CEN on 13 June 2016 and Amendment 2, approved
by CEN on 15 January 2019.
This document supersedes #EN 14423:2013+A1:2016$.
The start and finish of text introduced or altered by amendment is indicated in the text by tags !"
and #$.
In comparison to EN 14423:2004, the following changes have been made:
— In Clause 2, the normative references have been updated.
— Clause 3 “Terms and definitions” has been amended.
— The term “seals” has been replaced by “gaskets” (main gasket/thread gasket).
— Restrictions on nominal size DN 32 have been deleted.
— In 9.1, 9.2, 9.3 and 9.8, the material lists have been revised.
— In Clause 10, the requirements for marking of hose fittings and union nuts have been revised.
— Clause 11 “Type testing and quality control” has been restructured and amended.
— The Bibliography has been reviewed.
— The standard has been revised editorially.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
1 Scope
This European Standard specifies the design, materials and dimensions of fittings for clamp type
coupling assemblies for use with nominal sizes DN 15 to DN 50 steam and hot water hoses. It covers
1)
assemblies up to a maximum working pressure of 18 bar (corresponding to a saturated steam
temperature of 210 °C).
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
EN 10025-2, Hot rolled products of structural steels — Part 2: Technical delivery conditions for non-alloy
structural steels
EN 10087, Free-cutting steels — Technical delivery conditions for semi-finished products, hot-rolled bars
and rods
EN 10088-1, Stainless steels — Part 1: List of stainless steels
EN 10088-2, Stainless steels — Part 2: Technical delivery conditions for sheet/plate and strip of corrosion
resisting steels for general purposes
EN 10213, Steel castings for pressure purposes
EN 10226-1, Pipe threads where pressure tight joints are made on the threads — Part 1: Taper external
threads and parallel internal threads — Dimensions, tolerances and designation
EN 10283, Corrosion resistant steel castings
EN 12164, Copper and copper alloys — Rod for free machining purposes
EN 12168, Copper and copper alloys — Hollow rod for free machining purposes
EN 12420, Copper and copper alloys — Forgings
EN ISO 898-2, Mechanical properties of fasteners made of carbon steel and alloy steel — Part 2: Nuts with
specified property classes — Coarse thread and fine pitch thread (ISO 898-2)
EN 22768-1:1993, General tolerances — Part 1: Tolerances for linear and angular dimensions without
individual tolerance indications (ISO 2768-1:1989)
EN 22768-2:1993, General tolerances — Part 2: Geometrical tolerances for features without individual
tolerance indications (ISO 2768-2:1989)
EN ISO 228-1, Pipe threads where pressure tight joints are not made on the threads — Part 1: Dimensions,
tolerances and designation (ISO 228-1)
EN ISO 898-1, Mechanical properties of fasteners made of carbon steel and alloy steel — Part 1: Bolts,
screws and studs with specified property classes — Coarse thread and fine pitch thread (ISO 898-1)
EN ISO 3506-1, Mechanical properties of corrosion-resistant stainless steel fasteners — Part 1: Bolts,
screws and studs (ISO 3506-1)
1) 1 bar = 0,1 MPa.
EN ISO 3506-2, Mechanical properties of corrosion-resistant stainless steel fasteners — Part 2: Nuts
(ISO 3506-2)
EN ISO 4032, Hexagon regular nuts (style 1) — Product grades A and B (ISO 4032)
EN ISO 4042, Fasteners — Electroplated coatings (ISO 4042)
EN ISO 4762, Hexagon socket head cap screws (ISO 4762)
EN ISO 8330, Rubber and plastics hoses and hose assemblies — Vocabulary (ISO 8330)
EN ISO 15607, Specification and qualification of welding procedures for metallic materials — General
rules (ISO 15607)
...