1、CEN PRENa3b90 94 3404589 0064436 Tlb Edition approved for publication Comments should be sent within six months after the date of publication to AECMA STANDARD NORME AECMA AECMA NORM C4 Chairman prEN 3690 Edition P 1 June 1994 DIT PAR LASSOCIATION EUROPENNE DES CONSTRUCTEURS DE MATRIEL AROSPATIAL Te
2、chnopolis - 175, rue Jean-Jacques Rousseau - F-92138 Issy-les-Moulineaux Cedex - Tl. (1) 47.36.98.76 UDC : Descriptors : ENGLISH VERSION Aerospace series Pipe coupling 8O30 in titanium alloy Unions, bulkhead, long Srie arospatiale Luft- und Raumfahrt Raccordement 8O30 en alliage de titane traverse d
3、e cloison, type long Rohrverschraubung 8O30 aus Titanlegierung lange Ausfhrung Raccords droits, Gerade Schott-Verschraubungen, This “Aerospace Series I Prestandard has been drawn up under the responsibility of AECMA (Association Europenne des Constructeurs de Matriel Arospatial). It is published on
4、green paper for the needs of AECMA-Members. It has been technically approved by the experts of the concerned Technical 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 interchangeabili
5、ty is affected, physically or functionally, without re-identification of the standard. After examination and signature of the AECMA Standard Checking Centre (NPS) and formal agreement of the Officiai Services of the Member countries it will be submitted as a draft European Standard to CEN (European
6、Committee for Standardization) for formal vote. 1994-06-30 AECMA Technopolis - 175, rue Jean-Jacques Rousseau 921 38 Issy-les-Moulineaux Cedex - FRANCE Mr. Staib aecma 1994 CEN PREN83690 94 m 3404589 0064437 952 Page 2 prEN 3690 Contents list 1 Scope 2 Normative references 3 Required characteristics
7、 4 Designation 5 Marking 6 Technical specification CEN PREN+3b90 94 3404589 0064438 899 = A 1 Page 3 prEN 3690 1 Scope This standard specifies the characteristics of a bulkhead union in titanium alloy with a thread end for a maximum bulkhead wall thickness of 6 mm intended for use in aircraft fluid
8、system pipelines. Nominal pressure: up to 28 O00 kPa Temperature range: - 55 OC to 135 OC 2 Normative references IS0 5855-3 EN 2424 EN 2491 EN 3274 EN 3215 EN 3314 MIL-L-46010B Aerospace - MJ threads - Part 3: Limit dimensions for fittings for fluid systems Aerospace series - Marking of aerospace pr
9、oducts *) Aerospace series - Molybdenum disulphide dry film lubricants - Coating methods l) Aerospace series - Pipe coupling 8“30 - Thread end - Geometrical configuration “) Aerospace series - Pipe coupling 830 - Dynamic beam seal up to 28 O00 kPa - Metric series - Technical specification 3, Aerospa
10、ce series - Titanium alloy TI-P64001 - Solution treated and aged - Bar for machining - D 6 75 mm “) Lubricant, solid film, heat cured, corrosion inhibiting .) I) In preparation at the date of publication of this standard *) Published as AECMA Standard at the date of publication of this standard “) P
11、ublished as AECMA Prestandard at the date of publication of this standard Published by: Department of Defense (DOD), the Pentagon, Washington, D.C. 20301. CEN PREN*3690 94 3404589 0064439 725 U O a, L I- J” L Page 4 prEN 3690 3 Required characteristics 3.1 The configuration shall be in accordance wi
12、th figure 1; the dimensions and tolerances shall conform with the values shown in figure 1 and table 1 prior to application of dry film lubricant. Configuration - Dimensions - Tolerances 3.2 Surface roughness See figure 1, unless other values of referenced design standards are specified. 3.3 Materia
13、l See EN 3314. 3.4 Surface treatment Lubrication: EN 2491, on threads and sealing faces. NOTE: Until EN 2491 is published the lubricant may be applied using MIL-L46010B. Abrasive blasting shall be carried out using aluminium oxide within the grade 90-220 mesh at a pressure of 480 kPa max. for a time
14、 to give a clean even surface and then rinsed in clean cold water. Lubricant shall be applied within 3 h. J Break all sharp edges 0,l mrn to 0,4 rnm t Across flat S Installation: Drr - lub Thr (wt per ca Thread end w .i t h hexagon Marklng EN 3274 Form eod end thout hexagon) EN 3274 Form B Griplengt
15、h 7,5 mrn mcx, -, t ion Figure l: Configuration A 1 I CEN PREN*3bSO 74 3404589 0064440 447 (C/HZLL/3.F/C/A) I I Page 5 prEN 3690 Table 1: Dimensions, tolerances and mass Dimensions in millimetres 05 06 O8 MJ 10 x 1 MJ 12 x 1,25 MJ 14 x 1,5 10 12 14 16 18 MJ 16 x 1,5 MJ 18 x 1,5 MJ 20 x 1,5 MJ 22 x 1
16、5 MJ 24 x 1.5 I 20 22 25 28 MJ 27 x 1,5 MJ 30 x 1.5 MJ 33 x 1,5 MJ 36 x 1,5 32 1 MJ 39 x 1,5 F Ref 33,6 38.0 43,6 44,6 46,6 46,6 46,6 46,6 46,6 46,6 46,6 49.1 49,l L 2 0.2 s hl 3 Mass g/piece max . 14.1 16,O 18,6 14 17 19 11.39 17,91 25,04 18,6 19,6 19,6 19.6 19,6 22 24 27 30 32 31,56 39,27 50,51 6
17、2.89 65,76 19,6 19,6 19.6 20,6 34 36 Al A6 76,98 83,69 109,43 134,47 L I 20.6 I 50 I 153,58 I I l) ON Diameter Nominal (outside diameter of the corresponding pipe) 2) According to IS0 5855-3 4 Designation EXAMPLE : Description block Identity block EN3690-05 T UNION, BULKHEAD, LONG I Number of this s
18、tandard ON (see table 1) NOTE: block. If necessary, the code I9005 shall be placed between the description block and the identity 5 Marking Each part shall be marked in the position shown in figure 1 in accordance with EN 2424, style G. 6 Technical specification Parts supplied to this standard shall conform with the requirements of EN 3275 type II.
