1、CEN PRENb3b3L 93 3404589 0050593 OT5 AECMA STANDARD NORME AECMA AECMA NORM prEN 3631 August 1993 Edition P 1 DIT PAR LASSOCIATION EUROPENNE DES CONSTRUCTEURS DE MATRIEL AROSPATIAL Technopolis - 175, rue Jean-Jacques Rousseau - F-92138 Issy-les-Moulineaux Cedex - Tl. (1) 47.36.98.76 UDC : Descriptors
2、 : ENGLISH VERSION Aerospace series Fluid fittings, flanged 90 elbowed Sealing by O-ring for 0,8 mm thick tubes Srie arospatiale Raccords bride 90 tanchit par joint torique pour tubes de 0.8 mm dpaisseur Luft- und Raumfahrt Rohrverbindungen mit Flansch, 90 O-Ring-Dichtung fr Rohre mit einer Dicke vo
3、n 0.8 mm This “Aerospace Series“ Prestandard has been drawn up under the responsibility of AECMA (Association Europenne des Constructeurs de Matriel Arospatial. It is publiihed on green paper for the needs of AECMA-Members. It has been technically approved by the experts of the concerned Technical C
4、ommittee 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 signature o
5、f 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. Nota - Extra copies can be supplied by B.N.A.E. - Technopolis 54 - 199, r
6、ue Jean-Jacques Rousseau - 921 38 ISSY-LES-MOULINEAUX CEDEX C8 Chairman I Comments should be sent within six months after the date of publication to I Edition approved for publication 1993-08-31 AECMA Technopolis - 175, rue Jean-Jacques Rousseau 921 38 Issy-les-Moulineaux Cedex - FRANCE Mr. Williams
7、 I I aecrna 1993 Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-CEN PRENr363L 93 m 3404589 0050594 T3L m prEN 3631 Page 3 1 Scope The purpose of this
8、standard is to define the characteristics of the fluid fittings, flanged, 90* elbowed, sealing by O-ring, for 0.8 mm thick tubes. NOTE : Flanged fitting installation hole and assembly, see EN 3633 and TR 3634. 2 Normative references EN 2000 Aerospace series - Quality assurance - EN aerospace product
9、s - Approval of the quality system of manufacturers EN 2157-3 Aerospace series - Steel - Forging stock and forgings - Technical specification - Part 3 - Pre-production and production forgings ) EN 2424 EN 2462 Aerospace series - Identification marking of standard fasteners ) Steel FE-PA13 - Softened
10、 - Bars De I 100 mm - Aerospace series ) EN 3482 Aerospace series - Steel FE-PA13 - Annealed - Reference heat treatment : softened - Forging stock De 5 100 mm Aerospace series - Installation hole for fluid fittings, flanged EN 3633 EN 3635 TR 3634 Aerospace series - Weld lip - Geometrical configurat
11、ion Aerospace series - Flanged fitting assembly 3, 3 3.1 Req u i red c h a riic t eris t ic s Configuration - Dimensions - Tolerances 3.1.1 Configuration See figures. 3.1.2 Dimensions and tolerances See figures and tables. Dimensions are in millimetres. 3.2 Material EN 2462 or EN 348.2 Fittings can
12、be machined or forged according to EN 21 57-3. 1) Published as AECMA Standard at the date of publication of this standard 2) Published as AECMA Prestandard at the date of publication of this standard 3) In preparation at the date of publication of this standard Previous page is blank Copyright Assoc
13、iation Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-CEN PREN*3b3L 93 D 3404589 0050595 938 prEN 3631 Page 4 120 140 160 A-A 1 Figure 1 Table 1 0 tube 9,9 10 8,3 o 12 24 2
14、1 24,2 34 14 12,7 14 26 23 25.5 36 16 14 14 12.3 16 28 25 26.5 38 18 15 12 + 0,11 “ 16 I 14,3 I I 18 I 30 I 27 I 27.5 1 40 I 20 I 16 k0.15 I I + 0.351 - 0.15 23.5 9 I -0.15 25,5 I 10 I 10 1 Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with A
15、ECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-CEN PREN*363L 93 3404587 0050596 804 prEN 3631 Page 5 Break sharp edges (3,l to 0,3 34( 6/) Radius V s here II, A- A ,-4 K , See fiaure 8 II Marking / Figure 2 Table 2 mc Diameter Hole 0 tube pl 280 - 3 16.3 I - 0
16、,15 I I - 0.5 I - 0,3 30 52 62 32,5 34 70 35 36 15 24.5 16 25,5 17 26 18 26.5 19,5 27 21 28.5 23 30 25 I32 + 0,35 - 0,15 18 I 18 I Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted w
17、ithout license from IHS-,-,-CEN PREN*363L 93 m 3404589 0050597 7YO m prEN 3631 Page 6 5 Machined flanged fitting - Type B See figures 3 and 4 and tables 3 and 4. Break sharp edges O, 1 to 0,4 A- A 2 ideniil 011 spot lacings Figure 3 Table 3 Copyright Association Europeene des Constructeurs de Materi
18、el Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-CEN PREN*3b3L 93 3404589 0050598 687 = prEN 3631 Page 7 Diameter code 140 160 180 200 220 250 280 3 20 Break sharp edges 0,l to 0,3 A- A (For tube 0 = 32 these sp
19、ot facings do not 7 Q to 450 & overlap fitting body) 3 equidistant holes 0 5,4 O Markin figure 4 Table 4 Hole 0 tub code (0.8 thi 14 16 18 20 3 22 25 28 32 Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction
20、or networking permitted without license from IHS-,-,-CEN PRENr363L 93 3404589 0050599 513 prEN 3631 Page 8 6 Fitting 6.1 See figure 5. Fitting for tubes 0 I, 16 6.2 See figure 6 and table 4. Fitting for tubes 0 16 Figure 5 I Figure 6 Copyright Association Europeene des Constructeurs de Materiel Aero
21、spatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-CEN PRENx3631 93 3404589 0050600 Ob5 M prEN 3631 Page 9 7 Cone and end fitting See figures 7 and 8 and table 5. ( 7 ) R= 1,25 O + 0,15 2,7 0 at intersection f 0,l R= 0,3
22、 i 0,2 1 I L I R 0.3 to0.5 Figure 7 Weld liD to EN 3635 7- a Figure 8 Table 5 080 8 9,1 7,9 1 O0 10 10,l I 11,l 9,9 Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license
23、from IHS-,-,-DrEN 363 t-? Number of this standard Diameter code (see tables) CEN PRENx363.l 93 3404589 0050b01 TTL Page 10 8 Designation EXAMPLE : Description block FITTING Identity block EN3631 -1 40-2-A NOTE : If necessary, the code 19005 shall be placed between the description block and the identity block. 9 Marking EN 2424, style A, as indicated on the figures. 1 O Quality assurance EN 2000 Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
