1、BSI Standards PublicationBS EN 4550-1:2014Aerospace series Pipecoupling, 37 Designconfiguration Inch seriesPart 1: Male sealing ends, sphericalBS EN 4550-1:2014 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 4550-1:2014. Itsupersedes BS EN 4550-1:2003 which is
2、withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee ACE/69, Aerospace hydraulic systems, fluids andcomponents.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necess
3、aryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2014. Published by BSI StandardsLimited 2014ISBN 978 0 580 87290 7ICS 49.080Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was publi
4、shed under the authority of theStandards Policy and Strategy Committee on 31 December 2014.Amendments issued since publicationDate Text affectedBS EN 4550-1:2014EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 4550-1 December 2014 ICS 49.080 Supersedes EN 4550-1:2003English Version Aerospace ser
5、ies - Pipe coupling, 37 - Design configuration - Inch series - Part 1: Male sealing ends, spherical Srie arospatiale - Systme de raccordement 37 - Configuration gomtrique - Srie inch - Partie 1: Extrmit dtanchit mles, sphriques Luft- und Raumfahrt - Rohrverschraubungen 37 - Konstruktionsblatt - Inch
6、-Reihe - Teil 1: Steckdichtungsenden mit Kugelbuchsen This European Standard was approved by CEN on 11 November 2014. 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 a
7、ny 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 langu
8、age 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
9、, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FO
10、R STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 4550-1:2014 EBS EN 4550-1:2014EN
11、4550-1:2014 (E) 2 Contents Page Foreword 3 1 Scope 4 2 Normative references 4 3 Dimensions Tolerances .4 4 Designation 5 Annex A (informative) Standard evolution form .6 BS EN 4550-1:2014EN 4550-1:2014 (E) 3 Foreword This document (EN 4550-1:2014) has been prepared by the Aerospace and Defence Indus
12、tries Association of Europe - Standardization (ASD-STAN). After enquiries and votes carried out in accordance with the rules of this Association, this Standard has received the approval of the National Associations and the Official Services of the member countries of ASD, prior to its presentation t
13、o CEN. 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 June 2015, and conflicting national standards shall be withdrawn at the latest by June 2015. Attention is drawn to the possibility that some
14、of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 4550-1:2003. According to the CEN-CENELEC Internal Regulations, the national standards organizations of th
15、e 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, Netherl
16、ands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 4550-1:2014EN 4550-1:2014 (E) 4 1 Scope This European Standard defines the dimensions and tolerances for the male sealing end of inch series pipe couplings, 37, spherical, fo
17、r aerospace applications. Matched fluid system component shall have a female sealing end in accordance with EN 4550-4. 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, onl
18、y the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 4550-4, Aerospace series Pipe coupling, 37 Design configuration Inch series Part 4: Female sealing ends ISO 3161, Aerospace UNJ threads General requirements and l
19、imit dimensions 3 Dimensions Tolerances See Figure 1 and Table 1. Dimensions and tolerances are in millimetres. Key 1 Thread NOTE All outer surfaces shall be concentric with a tolerance of diameter 0,1 mm relative to the inner diameter A. Figure 1 BS EN 4550-1:2014EN 4550-1:2014 (E) 5 Table 1 Dimens
20、ional code a Nominal diameter Thread b A B C D E F G H J K L R S + 0,35 0, 0,10 0,10 0, 0,1 0,50 0,10 0,25 0,13 03 04,763 .375 0-24UNJF-3A 02,65 02,90 4,4 07,00 03,30 04,53 07,90 0,5 1,3 4,06 12,20 5,50 1,80 07,90 0,74 04 06,350 .437 5-20UNJF-3A 04,25 04,50 4,8 09,00 04,80 06,25 09,25 3,20 14,00 5,5
21、5 2,00 0,80 05 07,924 .500 0-20UNJF-3A 05,80 06,10 10,50 06,50 07,77 10,80 2,45 5,50 0,74 06 09,525 .562 5-18UNJF-3A 07,35 07,70 4,9 11,90 08,10 09,61 12,20 1,50 5,65 2,30 0,87 08 12,700 .750 0-16UNJF-3A 09,75 10,10 6,3 16,50 10,80 12,66 16,75 0,8 1,8 3,30 16,50 8,35 2,55 12,05 1,10 10 15,875 .875 0
22、-14UNJF-3A 12,15 12,50 6,6 19,30 13,70 15,50 19,65 1,88 19,00 8,30 3,05 1,05 12 19,050 1.062 5-12UNJ-3A 15,30 15,70 7,8 23,60 16,90 19,34 24,00 3,15 21,80 11,10 3,30 16,05 1,43 16 25,400 1.312 5-12UNJ-3A 21,20 21,70 30,00 23,25 25,64 30,35 0,00 22,90 1,42 aThis two digit quantitative code correspond
23、s to the tube nominal diameter as the number of 1/16 inch increments it contains i.e. divided by 1/16 (.0625) inch. bQuoted in inches in accordance with ISO 3161. 4 Designation EXAMPLE Identity block EN4550-1-08 Number of this standard Dimensional code (see Table 1) BS EN 4550-1:2014EN 4550-1:2014 (
24、E) 6 Annex A (informative) Standard evolution form MODIFICATION REASON AND VALIDATION Figure 1 Before: dimension L (groove width) was represented up to top of thread. After: dimension L (groove width) is represented up to the bottom of thread. Wrong representation of dimension L (groove width). Acco
25、rdance with standard DT45-02. Figure 1 Before: Dimension R was indicated as an absolute dimension (boxed dimension). After: Dimension R is indicated as a dimension with tolerance and tolerance 0,13 is added in Table 1. Incompatibility with another absolute dimension. Accordance with standard DT45-02
26、. Figure 1 Before: Dimension K was indicated as an absolute dimension (boxed dimension). After: Dimension K is indicated as a dimension with tolerance and tolerance 0,10 is added in Table 1. Incompatibility with another absolute dimension. Accordance with standard DT45-02. This page deliberately lef
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