1、ASD-STAN STANDARD NORME ASD-STAN ASD-STAN NORM prEN 4686 Edition P 1 June 2012 PUBLISHED BY THE AEROSPACE AND DEFENCE INDUSTRIES ASSOCIATION OF EUROPE - STANDARDIZATIONAvenue de Tervuren, 270 - B-1150 Brussels - Tel. 32 2 775 8126 - Fax. 32 2 775 8131 - www.asd-stan.orgICS: Descriptors: ENGLISH VERS
2、ION Aerospace series Pipe coupling 830 in titanium alloy Equipped blind ferrules Srie arospatiale Systme de raccordement 830 en alliage de titane Obturateurs quips Luft- und Raumfahrt Rohrverschraubung 830 aus Titanlegierung Ausgerstete Blindstutzen This “Aerospace Series“ Prestandard has been drawn
3、 up under the responsibility of ASD-STAN (The AeroSpace and Defence Industries Association of Europe - Standardization). It is published for the needs of the European Aerospace Industry. It has been technically approved by the experts of the concerned Domain following member comments. Subsequent to
4、the publication of this Prestandard, the technical content shall not be changed to an extent that interchangeability is affected, physically or functionally, without re-identification of the standard. After examination and review by users and formal agreement of ASD-STAN, it will be submitted as a d
5、raft European Standard (prEN) to CEN (European Committee for Standardization) for formal vote and transformation to full European Standard (EN). The CEN national members have then to implement the EN at national level by giving the EN the status of a national standard and by withdrawing any national
6、 standards conflicting with the EN. Edition approved for publication 30 June 2012 Comments should be sent within six months after the date of publication to ASD-STAN Mechanical Domain Copyright 2012 by ASD-STAN prEN 4686:2012 (E) 2 Contents Page Foreword 2 1 Scope 3 2 Normative references 3 3 Requir
7、ed characteristics .3 4 Designation 5 5 Marking .6 6 Technical specification .6 Foreword This standard was reviewed by the Domain Technical Coordinator of ASD-STANs Mechanical Domain. After inquiries and votes carried out in accordance with the rules of ASD-STAN defined in ASD-STANs General Process
8、Manual, this standard has received approval for Publication. prEN 4686:2012 (E) 3 1 Scope This standard specifies the characteristics of equipped blind ferrules for pipe couplings 830, in titanium alloy, for aerospace applications. 2 Normative references The following referenced documents are indisp
9、ensable for the application 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 3269, Aerospace series Pipe coupling 830 in titanium alloy Ferrules, blind, with dynamic be
10、am 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 Solution treated and
11、aged Bar for machining D 75 mm 1)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 resistant, exterior use 2)
12、FED-STD-595, Federal Standard: colors used in government procurement (Color FS 11136) 2)DIN 471, Retaining rings for shafts Normal type and heavy type3)3 Required characteristics 3.1 Configuration Dimensions Mass According to Figure 1 and Table 1. Dimensions applied before lubricating. See EN 3269 a
13、nd EN 4031 for missing dimensions. 3.2 Surface roughness According to Figure 1. 1) Published as ASD-STAN Prestandard at the date of publication of this standard (www.asd-stan.org). 2) Published by: DoD National (US) Mil. Department of Defense http:/www.defenselink.mil/ 3) To be obtained from: Beuth
14、Verlag, Burggrafenstr. 6, 10787 Berlin, www.beuth.de prEN 4686:2012 (E) 4 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. 3.4 Surface treatment Lubrication: PTFE coating on the 110 Nut contact area, see EN
15、4031. Optional, red coating FED-STD-595/11136 in accordance with MIL-PRF-24635 (see Figure 1 and Table 2). Dimensions in millimetres 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
16、 0,1 prEN 4686:2012 (E) 5 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 3020 MJ271,5 21 32 22 MJ301,5 36 25 MJ331,5 14 41 28 MJ361,5 46 32 MJ391,5 22,5 17 50 aCorrespon
17、ds to the pipe 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 descript
18、ion block and the identity block. Table 2 Option Code Red coating R No red coating No code prEN 4686:2012 (E) 6 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-FLIGHTWORTHY COMPONENTS and must be REMOVED BEFORE FLIGHT. 6 Technical specification According to EN 3275.
