1、BSI Standards PublicationBS EN 4686:2014Aerospace series Pipecoupling 830 in titanium alloy Equipped blind ferrulesBS EN 4686:2014 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 4686:2014.BSI, as a member of CEN, is obliged to publish EN 4686 as a British Stand
2、ard. However, attention is drawn to the fact that during the development of this European Standard, the UK committee voted against its approval as a European Standard. The UK committee considers that while the technical content of the standard appears to be correct, the title of the standard does no
3、t match the common industry terms used for the item described. The items described in the standard are neither couplings nor ferrules, blind or otherwise. The UK committee considers these items to be Removable Blanking Cap Assemblies.The UK participation in its preparation was entrusted to Technical
4、 Committee ACE/69, Aerospace hydraulic systems, fluids and com-ponents.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct appl
5、ication. The British Standards Institution 2014.Published by BSI Standards Limited 2014ISBN 978 0 580 67366 5ICS 49.080Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committ
6、ee on 30 November 2014.Amendments/corrigenda issued since publicationDate Text affectedEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 4686 October 2014 ICS 49.080 English Version Aerospace series - Pipe coupling 830 in titanium alloy - Equipped blind ferrules Srie arospatiale - Systme de racco
7、rdement 830 en alliage de titane - Obturateurs quips Luft- und Raumfahrt - Rohrverschraubung 830 aus Titanlegierung - Ausgerstete Blindstutzen This European Standard was approved by CEN on 4 January 2014. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the c
8、onditions 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 ex
9、ists 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 s
10、tandards 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, Slovakia,
11、 Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR 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 res
12、erved worldwide for CEN national Members. Ref. No. EN 4686:2014 EBS EN 4686:2014EN 4686:2014 (E) 2 Contents Page Foreword 3 1 Scope 4 2 Normative references 4 3 Required characteristics .4 3.1 Configuration Dimensions Mass 4 3.2 Surface roughness 4 3.3 Materials .4 3.4 Surface treatment 5 4 Designat
13、ion 6 5 Marking .7 6 Technical specification .7 BS EN 4686:2014EN 4686:2014 (E) 3 Foreword This document (EN 4686:2014) has been prepared by the Aerospace and Defence Industries Association of Europe - Standardization (ASD-STAN). After enquiries and votes carried out in accordance with the rules of
14、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 to CEN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by
15、 endorsement, at the latest by April 2015, and conflicting national standards shall be withdrawn at the latest by April 2015. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for ide
16、ntifying any or all such patent rights. 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 Yug
17、oslav 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 the United Kingdom. BS EN 4686:2014EN 4686:2014 (E) 4 1 Scope This
18、European Standard specifies the characteristics of equipped blind ferrules for pipe couplings 830, in titanium alloy, for aerospace applications. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application
19、. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. DIN 471, Retaining rings for shafts Normal type and heavy type1)EN 3269, Aerospace series Pipe coupling 830 in titanium alloy Ferrules, bl
20、ind, with dynamic beam seal end EN 3275, Aerospace series Pipe coupling 830 up to 28 000 kPa Dynamic beam seal Metric series Technical specification EN 3311, Aerospace series Titanium alloy TI-P64001 (Ti-6Al-4V) Annealed Bar for machining D 110 mm EN 3314, Aerospace series Titanium alloy TI-P64001 S
21、olution treated and aged Bar for machining D 75 mm 2)EN 4031, Aerospace series Pipe coupling 830 in titanium alloy Nuts for welded ferrule ISO 5855-3, Aerospace MJ threads Part 3: Limit dimensions for fittings for fluid systems MIL-PRF-24635, Performance specification Coating systems, weather resist
22、ant, exterior use 3)FED-STD-595, Federal Standard: colors used in government procurement (Color FS 11136) 3)3 Required characteristics 3.1 Configuration Dimensions Mass According to Figure 1 and Table 1. Dimensions applied before lubricating. See EN 3269 and EN 4031 for missing dimensions. 3.2 Surfa
23、ce roughness According to Figure 1. 3.3 Materials According to EN 3311 or EN 3314 for nuts and blind ferrules. Stainless steel for external retaining rings according to DIN 471. 1) To be obtained from: Beuth Verlag, Burggrafenstr. 6, 10787 Berlin (www.beuth.de).2) Published as ASD-STAN Prestandard a
24、t the date of publication of this standard (www.asd-stan.org).3) Published by: DoD National (US) Mil. Department of Defense http:/www.defenselink.mil/BS EN 4686:2014EN 4686:2014 (E) 5 3.4 Surface treatment Lubrication: PTFE coating on the 110 Nut contact area, see EN 4031. Optional, red coating FED-
25、STD-595/11136 in accordance with MIL-PRF-24635 (see Figure 1 and Table 2). Dimensions in millimetres Key a Blind ferrule according to EN 3269b Diameter threadc Red coating zone d Nut coating zonee Axial mounting external type retaining ringFigure 1 Ra max. 6,3 0,3 0,1 0,3 0,1 BS EN 4686:2014EN 4686:
26、2014 (E) 6 Table 1 Code a Thread b L1S H 4H5H 0,3 h13 h13 05 MJ101 18 5 14 06 MJ121,25 16 08 MJ141,5 18,5 6 18 10 MJ161,5 8 21 12 MJ181,5 10 22 14 MJ201,5 12 24 16 MJ221,5 27 18 MJ241,5 20 30 20 MJ271,5 21 32 22 MJ301,5 36 25 MJ331,5 14 41 28 MJ361,5 46 32 MJ391,5 22,5 17 50 aCorresponds to the pipe
27、 nominal outside diameter. bAccording to ISO 5855-3. 4 Designation EXAMPLE Description block EQUIPPED BLIND FERRULE Identity block EN4686-05R Number of this standard Code (see Table 1) Red coating code (see Table 2) NOTE If necessary, the code I9005 shall be placed between the description block and
28、the identity block. Table 2 Option Code Red coating R No red coating No code BS EN 4686:2014EN 4686:2014 (E) 7 5 Marking According to EN 3269 and EN 4031. Optional code R, for information: EN 4031 marking will be hidden by red painting. WARNING Items marked with red colour reference are NON-FLIGHTWO
29、RTHY COMPONENTS and must be REMOVED BEFORE FLIGHT. 6 Technical specification According to EN 3275. This page deliberately left blankThis page deliberately left blankBSI is the national body responsible for preparing British Standards and other standards-related publications, information and services
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