EN 14423:2004
(Main)Clamp type coupling assemblies for use with steam hoses rated for pressures up to 18 bar
Clamp type coupling assemblies for use with steam hoses rated for pressures up to 18 bar
This document 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 assemblies up to a maximum working pressure of 18 bar (corresponding to a saturated steam temperature of 210 °C).
Schlaucharmaturen mit Klemmfassung für Dampf bis 18 bar
Diese Norm legt die Ausführung, Werkstoffe und Maße für Schlaucharmaturen mit Klemmfassung für
Schläuche für Dampf und Heißwasser DN 15 bis DN 50 fest, die für Drücke bis 18 bar (entsprechend einer
Sattdampftemperatur von 210 °C) ausgelegt sind.
Raccords avec colliers de serrage pour tuyaux à vapeur utilisant une pression jusqu'à 18 bar
La présente norme européenne prescrit les exigences applicables à la conception, aux matériaux et aux dimensions des raccords pour des accouplements de type à demi-coquille destinés à être utilisés avec des flexibles pour vapeur et eau chaude de diamètres nominaux DN 15 à DN 50. Elle couvre les raccordements utilisés à des pressions de service maximales allant jusqu'à 18 bar (correspondant à une température de vapeur saturée de 210 °C).
Cevne armature z objemkami za cevi za paro do 18 bar
General Information
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Cevne armature z objemkami za cevi za paro do 18 barSchlaucharmaturen mit Klemmfassung für Dampf bis 18 barRaccords avec colliers de serrage pour tuyaux a vapeur utilisant une pression jusqu'a 18 barClamp type coupling assemblies for use with steam hoses rated for pressures up to 18 bar23.040.70Gumene cevi in armatureHoses and hose assembliesICS:Ta slovenski standard je istoveten z:EN 14423:2004SIST EN 14423:2005en01-marec-2005SIST EN 14423:2005SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 14423November 2004ICS 23.040.70English versionClamp type coupling assemblies for use with steam hoses ratedfor pressures up to 18 barRaccords avec colliers de serrage pour tuyaux à vapeurutilisant une pression jusqu'à 18 barSchlaucharmaturen mit Klemmfassung für Dampf bis 18barThis European Standard was approved by CEN on 30 September 2004.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2004 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 14423:2004: ESIST EN 14423:2005
Key a Connector end b Tail end For 1 to 5 see Table 1 Figure 1 — Coupling assembly Table 1 — Coupling assembly components Item number Number Denomination 1 1 Tail end fitting 2 2 Clamp 3 4 Hexagon socket head cap screw 4 4 Hexagon nut 5 1 Connector
A distinction is made between the connector end and the tail end of coupling assemblies. The former is the part by which the coupling is connected to an appliance or pipe (for various types of connectors, see Table 2), while the latter (including the tail end fitting and clamp) is fastened to a hose (see 7.2 and 7.4). SIST EN 14423:2005
≈≈≈≈ mm Details
FL PN 40 loose flange with weld-
neck collar as in EN 1092-1
See 7.3.1
FV PN 40 weld-neck flange as in EN 1092-1 15 20 25 (32)40 50
110 115 115 125 140 155 See 7.3.2
G Union nut with gasket, with parallel thread according to
EN ISO 228 a 15 20 25 (32)40 50
G ½
G ¾
G 1
G 1¼
G 1½
G 2 80
90 105 115 See 7.3.4
GA Tapered male thread with external thread according to EN 10226-1 a 15 20 25 (32)40 50
R ½
R ¾
R 1
R 1¼
R 1½
R 2 95
95 100 110 125 140 See 7.3.5 a Other threads may be agreed between the purchaser and manufacturer.
characteristics Coupling assembly EN 14423 — FL
20 — 1.4571 — 1.0038— CW614N EN number Type of connector FL Weld-neck collar for loose flange FV Weld-neck flange G Union nut with parallel thread according
to EN ISO 228-1 GA Tapered stud end according to
EN 10226-1 DN (nominal size) Material designation for tail end fittings: (according to 9.1) for type FL only: for loose flanges: (according to 9.3) for clamps: (according to 9.7) EXAMPLE 1 The designation for a type FL coupling assembly for use with DN 20 hoses, consisting of a stainless steel tail end fitting with collar (1.4571), a carbon steel (1.0038) loose flange and a wrought copper alloy (CW614N) clamp, with bolts and nuts, shall read:
Coupling assembly EN 14423 — FL 20 — 1.4571 — 1.0038 — CW614N EXAMPLE 2 The designation for a type G coupling assembly for use with DN 20 hoses, consisting of a stainless steel tail end fitting, a carbon steel (1.0038) union nut secured by a wire ring, and a wrought copper alloy (CW614N) clamp, with gasket, bolts and nuts, shall read:
Coupling assembly EN 14423 — G 20 — 1.0038 — CW614N 6 Hose dimensions Careful selection of the hose fittings should be made to ensure that the ID, OD of the hose are within the limits and tolerances of the tails and clamps detailed in this document. Also that the materials for the couplings have been tested to withstand the temperature and pressure medium being conveyed. SIST EN 14423:2005
Key a Deburred b Ribs Figure 2 — Tail end fitting SIST EN 14423:2005
Nominal size DN ±±±± 0,2 ±±±± 0,2 ±±±± 0,3 ±±±± 1,0 ±±±± 0,1 5,00+02,0−±±±± 1
Number or ribs
15 13
9 20 13 6 4 62
9 4
8 40
2 20 19
21 14 26 19 6 4 62
9 4
8 40
2 25 25
27 20 33 25 6 4 62
9 4
8 40
2 (32) 32
34 27 40 32 7 5 72
9 5
8 48
2 40 38
40,5 33 46 38 7 5 84 13 5 10 60
2,5 50 50
52,5 44 59 50 8 6 89 12 5 10 60
2,5 Avoid using DN 32
7.3 Connectors 7.3.1 Hose fittings with weld-neck collar (for loose flanges) (FL) The weld-neck collar may either be integral to the tail end fitting or welded to it (for welding requirements, see 7.3.3).
Type FL Key a Weld-neck collar PN 40 according to EN 1092-1 b Loose flange PN 40 according to EN 1092-1 c Tail end fitting (see 7.2) d Weld (optional, see 7.3.3) Figure 3 — Hose fitting with weld-neck collar SIST EN 14423:2005
max. 151082011025110(32)1224013750149Avoid using DN 32.
Example for an ordering designation for a type FL hose fitting (SFL), (without loose flange), for use with DN 20, in carbon steel (1.0038), hoses: Hose fitting EN 14423 — SFL 20 — 1.0038 7.3.2 Hose fittings with weld-neck flange (FV)
Key a Weld-neck flange PN 40 (see EN 1092-1) b Tail end fitting (see 7.2) c Welding connection (see 7.3.3) Figure 4 — Hose fitting with weld-neck flange Example for an ordering designation for a type FV hose fitting (SFV) for use with DN 20 hoses, in carbon steel (1.0038) shall read: Hose fitting EN 14423 — SFV 20 — 1.0038 SIST EN 14423:2005
Key a Flange or weld-neck b Tail end fitting Figure 5 — Example of welded joint Table 5 — Weld details
Dimensions in millimetres Nominal size DN d6 l8 s1 15 21,3 20 26,9 25 33,7
3,2 (32) 42,4
3,6 40 48,3
3,6 50 60,3 10
4 Avoid using DN 32.
SIST EN 1
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