1、 - STD-AECMA PREN 3081-ENGL 1797 10323LL 0033807 507 = AECMA STANDARD prEN 3081 NORME AECMA Edition P 1 December 1997 AECMA NORM PUBLISHED BY THE EUROPEAN ASSOCIATION OF AEROSPACE INDUSTRIES (AECMA) Gulledelle 94 - 8-1200 BRUXELLES - Tel. (+32) 2 775 81 10 - Fax. (+32) 2 775 81 11 ENGLISH VERSION Ae
2、rospace series Pipe coupling 8O 30 in titanium alloy Ferrules, welded, with dynamic beam seal end, for repair Srie arospatiale Luft- und Raumfahrt Raccordement 8O 30 en alliage de titane Olive souder avec lvre dtanchit, pour rparation Rohrverschraubung 8O 30 aus Titanlegierung Stutzen zum AnschweiBe
3、n mit Dichtlippe, fr Reparatur This “Aerospace Series“ Prestandard has been drawn up under the responsibility of AECMA (The European Association of Aerospace Industries). It is published on green paper for the needs of AECMA-Members. It has been technically approved by the experts of the concerned T
4、echnical Committee following comment by the Member countries. 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 s
5、ignature of the AECMA Standard Checking Centre (NPS) and formal agreement of the Official Services of the Member countries it will be submitted as a draft European Standard to CEN (European Committee for Standardization) for formal vote. I Nota - Extra copies can be supplied by B.N.A.E. - Technopoli
6、s 54 - 199, rue Jean-Jacques Rousseau - 921 38 ISSY-LES-MOULINEAUX CEDEX I Comments should be sent within six months after the date of publication to I Edition approved for publication I 1997-1 2-31 AECMA Gulledelle 94 C4 Chairman Mr Staib I B-1200 BRUXELLES I I STD*AECMA PREN YOBL-ENGL 3777 = 30123
7、L3 0033808 443 W Page 3 prEN 3081 : 1997 1 Scope This standard specifies the characteristics of welded ferrules with dynamic beam seal end of the 8“ 30 pipe coupling system in titanium alloy for aerospace application. They shall be used as repair couplings to replace EN 3243. Nominal pressure: up to
8、 28 O00 kPa Temperature range: -55 “C to 135 “C 2 Normative references This European Standard incorporates, by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dat
9、ed references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references, the latest edition of the publication referred to applies. EN 2424 Aerospace series - Marking of aerospace
10、products EN 2656 Aerospace series - Pipe couplings up to 28 O00 kPa - Fitting end, welded - Geometric configuration) EN 3243 Aerospace series - Pipe coupling 8“ 30 in titanium alloy - Ferrule, welded, with dynamic beam seal end) EN 3272 Aerospace series - Pipe coupling 8“ 30 - Dynamic beam seal end
11、for ferrule, welded - Geometric configuration) EN 3275 Aerospace series - Pipe coupling 8“ 30 - Dynamic beam seal up to 28 O00 kPa - Metric series - Technical specification) EN 3311 Aerospace series - Titanium alloy TI-P64001 - Annealed - Bar for machining - D 5 150 mm) EN 3314 Aerospace series - Ti
12、tanium alloy TLP64001 - Solution treated and aged - Bar for machining - D I 75 mm) ) Published as AECMA Prestandard at the date of publication of this standard previous Page is blank H2LZ (D/Z.F/D) STD-AECMA PREN 3081-ENGL 1997 1012311 0013807 38T W Page 4 prEN 3081 : 1997 3 Required characteristics
13、 3.1 Configuration - Dimensions - Mass According to figure 1 and table 1. 3.2 Surface roughness According to figure 1, unless otherwise specified in the design documentation. 3.3 Material According to EN 331 1 or EN 331 4 Dimensions in millimetres -0.3 y. 1 Area for marking y I / 0,05 Y According qr
14、yyAccording to EN 2656 .-.- I According to EN 2656 According to EN 3272 Figure 1 : Configuration H2LZ (D/2.F/D) - STD-AECMA PREN 308L-ENGL 1777 = LOL23Ll OOL3810 OTL Page 5 prEN 3081 : 1997 1 Mass Code) g/piece Code)2) O 42 max. 1,19 1805 1,30 1807 0504 0505 0605 21 1,73 1810 -,-“ 1813 2,38 - 2006 0
15、805 - 0806 2772 2007 3,40 2012 1005 1008 1205 -7 201 5 1206 22 3,69 2208 1209 4,55 221 2 1405 4,19 221 6 1408 25 4,39 2508 1410 6,14 2509 1 605 530 251 4 581 2518 7,76 2808 1606 1610 1612 8,70 281 O 22 21 21 - 27 Table 1: Dimensions, mass I Mass 1 Mass gpiece Code) gpiece O 0 5,99 281 6 7,14 2820 8,
16、77 321 O 10,33 3212 9,37 10,06 13,31 15,18 1 1,78 31 14,89 17,88 14,76 15,75 20,62 24,38 16,42 18,65 -0.2 rnax -0.2 max 25,21 29,40 20,95 23,60 34 35 27 29 34 34 Dimensions in millimetres Identity block EN3081-0806 ) Corresponds to the nominal outside diameter of pipe and wall thickness. ) For relationship between code and pressure classification, see EN 2656. 4 Designation EXAMPLE: Description block FERRULE, WELDED 5 Marking According to EN 2424, style A and figure 1 6 Technical specification According to EN 3275, type II. HPLZ (D/2.F/D)
