1、ASD-STAN STANDARD NORME ASD-STAN ASD-STAN NORM prEN 3268 Edition P 3 October 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: Supersedes edition P 2
2、 of March 1995 and will supersede EN 3268:2001Descriptors: ENGLISH VERSION Aerospace series Pipe coupling 830 in titanium alloy Pressure plugs Srie arospatiale Systme de raccordement 830 en alliage de titane Obturateurs de tuyauterie Luft- und Raumfahrt Rohrverschraubung 830 aus Titanlegierung Blind
3、verschraubungen This “Aerospace Series“ Prestandard has been drawn 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
4、 of the concerned Domain following member comments. Subsequent to 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 u
5、sers and formal agreement of ASD-STAN, it will be submitted as a draft 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
6、 the status of a national standard and by withdrawing any national standards conflicting with the EN. Edition approved for publication 1 October 2012 Comments should be sent within six months after the date of publication to ASD-STAN Mechanical Domain Copyright 2012 by ASD-STAN prEN 3268:2012 (E) 2
7、Contents Page Foreword 2 1 Scope 3 2 Normative references 3 3 Required characteristics .3 4 Designation 5 5 Marking .6 6 Technical specification .6 Annex A (informative) Standard evolution form 7 Foreword This standard was reviewed by the Domain Technical Coordinator of ASD-STANs Mechanical Domain.
8、After inquiries and votes carried out in accordance with the rules of ASD-STAN defined in ASD-STANs General Process Manual, this standard has received approval for Publication. prEN 3268:2012 (E) 3 1 Scope This standard specifies the characteristics of pressure plugs for pipe couplings 830, in titan
9、ium alloy, for aerospace applications. 2 Normative references The following referenced documents are indispensable 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 amendmen
10、ts) applies. EN 2424, Aerospace series Marking of aerospace products EN 2491, Aerospace series Molybdenum disulphide dry lubricants Coating methods EN 3274, Aerospace series Pipe coupling 830 Thread end Geometric configuration EN 3275, Aerospace series Pipe coupling 830 up to 28 000 kPa Dynamic beam
11、 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 aged Bar for machining D 75 mm 1)ISO 5855-3, Aerospace MJ threads Part 3: Limit dimen
12、sions for fittings for fluid systems MIL-PRF-24635, Performance specification Coating systems, weather resistant, exterior use 2)FED-STD-595, Federal Standard: colors used in government procurement (Color FS 11136) 2)3 Required characteristics 3.1 Configuration Dimensions Mass According to Figure 1
13、and Table 1. Dimensions applied before lubricating. 3.2 Surface roughness According to Figure 1. 3.3 Materials According to EN 3311 or EN 3314. 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 D
14、efense http:/www.defenselink.mil/ prEN 3268:2012 (E) 4 3.4 Surface treatment Lubrication: according to EN 2491 on thread and sealing face, film thickness: 0.005 mm to 0.013mm. Optional, red coating FED-STD-595/11136 in accordance with MIL-PRF-24635 (see Figure 1 and Table 2). Prior to application of
15、 lubricant or coating, the surface shall be abrasive blasted using non-metallic grit. Dimensions in millimetres a Area for markingb Two holes d1(optional, see Table 1)c According to EN 3274, form Bd Threade 0,3 to 0,6 applicable to both facesf From either faceg Red coating zone (optional, see Table
16、2)Figure 1 0,3 0,1 0,3 0,1 6,3 prEN 3268:2012 (E) 5 Table 1 Dimensions in millimetres Code a Thread b d1l1l2s v1v2Mass g/piece 4g6g H13 0,2 0,4 h13 0,2 min. max. 05 MJ101 1 11,3 5,6 11 4,21 2,1 1,96 06 MJ121,25 1,5 13,5 7,1 13 4,94 2,6 3,04 08 MJ141,5 15,8 8,4 16 6,54 3,1 5,92 10 MJ161,5 16,3 7,8 17
17、 6,9 3,6 6,80 12 MJ181,5 16,8 7,3 19 7,97 3,85 10,15 14 MJ201,5 17,3 7 22 9,68 13,57 16 MJ221,5 17,8 6,5 24 10,51 17,75 18 MJ241,5 5,9 27 12,11 23,00 20 MJ271,5 18,2 5,1 30 13,77 31,01 22 MJ301,5 18,3 4,3 32 14,76 37,70 25 MJ331,5 3,9 34 15,66 43,35 28 MJ361,5 18,8 2,9 41 19,56 4,6 66,70 32 MJ391,5
18、2,1 71,81aCorresponds to the pipe nominal outside diameter. bAccording to ISO 5855-3. 4 Designation EXAMPLE Description block PRESSURE PLUG Identity block EN3268H05R Number of this standard Hole code (see Table 2) Code (see Table 1) Red coating code (see Table 2) NOTE If necessary, the code I9005 sh
19、all be placed between the description block and the identity block. prEN 3268:2012 (E) 6 Table 2 Option Code Lockwire hole H No hole (hyphen) Red coating R No red coating No code 5 Marking According to EN 2424, style A and Figure 1. WARNING Items marked with red colour reference are NON-FLIGHTWORTHY
20、 COMPONENTS and must be REMOVED BEFORE FLIGHT. 6 Technical specification According to EN 3275. prEN 3268:2012 (E) 7 Annex A (informative) Standard evolution form MODIFICATION REASON AND VALIDATION Before: Federal Standard 595B After: Federal Standard 585 Typing error: MJ18 1,8 must read MJ18 1,5 thi
21、s is a standard ISO thread For the “Red“ Colour code the standard number for the Federal Standard 585 B was changed to 585. The Letter “B“ indicates the published version. We do not quote the “issues“ of ref standards. The colour code 11156 was added. Additional information in the Standard: Optional code “R“ be careful this component shall not be used in flight condition. Was added on the standard.
