1、CEN PREN*:4019 94 3404589 0062553 LTL AECMA STANDARD NORME AECMA AECMA NORM prEN 4019 Edition P 1 Avril 1994 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 Pipe coupling 8O30 in titanium alloy Elbows 90, welded Luft- und Raumfahrt Rohrverschraubung 8O30 aus Titanlegierung Winkelverschraubungen 90 O zum Anschweien Srie arospatiale Raccordement 8O30 en alliage de titane Raccords couds 90 souder This “Aerospace Series“
3、Prestandard has been drawn up under the responsibility of AECMA (Association Europenne des Constructeurs de Matriel Arospatial). It is published on green paper for the needs of AECMA-Members. It has been technically approved by the experts of the concerned Technical Committee following comment by th
4、e 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 of the AECMA Standard Checking Ce
5、ntre (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, rue Jean-Jacques Rousseau - 921
6、38 ICSY-LES-MOULINEAUX CEDEX I Comments should be sent within six months after the date of Dublication to I Edition approved for publication 1994-04-29 AECMA Technopolis - 1 75, rue Jean-Jacques Rousseau 921 38 Issy-les-Moulineaux Cedex - FRANCE C 4 Chairman Mr. Staib 0 aecma 1994 CEN PREN+irOLS 94
7、m 340i)589 00b2554 O38 m prEN 4019 Page 2 Contents list 1 Scope 2 Normative references 3 Required characteristics 4 Designation 5 Marking 6 Tech nical specification CEN PREN*4017 74 3404589 O062555 T74 prEN 4019 Page 3 1 Scope This standard specifies the characteristics of elbows go, welded, in tita
8、nium alloy intended for use in aircraft fluid system pipelines. Nominal pressure: up to 28 O00 kPa NOTE: Check pressure class before use. Temperature range: -55 “C to 135 C 2 Normative references IS0 5855-3 EN 2424 EN 2491 EN 2656 EN 3274 EN 3275 EN 3314 EN 3315 MIL-L-46010B Aerospace - MJ threads -
9、 Part 3: Limit dimensia fa fittings fa fluid systems Aerospace series -Marking of aerospace products ) Aerospace series - Molybdenum disulphide dry film lubricants - Coating methods Aerospace series - Pipe couplings up to 56000 kPa - Fitting end, welded - Geometrical configuration 31 Aerospace serie
10、s - Pipe coupling 830 - Thread end - Geometric configuration 31 Aerospace series - Pipe coupling 830 - Dynamic beam seal up to 28 O00 kPa - Metric series - Technical specification 31 Aerospace series - Titanium alloy TI-P63 - Solution treated and aged - R, 1 1070 MPa - Bar for machining - De I 50 mm
11、 3, Aerospace series - Titanium alloy TI-P63 - Solution treated and aged R, 2 1070 MPa - Forgings - De I 50 mm 3, Lubricant solid film, heat cured, corrosion inhibiting 41 - I Published as AECMA Standard at the date of publication of this standard In preparation at the date of publication of this st
12、andard Published as AECMA Prestandard at the date of publication of this standard Published by: Department of Defense (DOD), the Pentagon, Washington, D.C. 20301 31 ) CEN PREN+4019 94 m 3404589 006255b 900 m prEN 4019 Page 4 3 Required characteristics 3.1 Configuration - Dimensions - Tolerances The
13、configuration shall be in accordance with figure I. The dimensions and tolerances shall conform to the values shown in table 1, prior to application of the dry film lubricant. The dimensions quoted are those required by the design to meet installation and system requirements. Dimensions and toleranc
14、es not quoted are at the manufacturers option subject to meeting the qualification and acceptance requirements of EN 3275. 3.2 Surface roughness See figure 1, unless other values of referenced design standards are specified. 3.3 Material See EN 3314 or EN 3315. 3.4 Surface treatment Lubrication: see
15、 EN 2491, on threads and sealing faces. NOTE: Until EN 2491 is published the lubricant may be applied using MIL-L-46010B. 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 to give a clean surface and then rinsed in clea
16、n cold water. Lubrication shall be applied within 3 h. Break al i sharp edges O. 1 mm to O. 4 mm Mark i ng Thread end pe/r EN 3274 form C Detai i X Corner to be removed by a process giving a radius of 0.3 mm to 1.0 mm and a surface finish of 0.8 vm. (Hand deburring is not permitted) *) Also drill de
17、pth dimension Figure 1 : Configuration CEN PREN*4019 94 D 3404587 0062557 847 I 24 27 30 44.1 6 44.70 47.1 9 48.63 59.01 61,33 63,56 79,33 80,07 83.66 86,44 34 97.25 99.95 105.02 108.26 prEN 4019 Page 5 Table 1: Dimensions, tolerances and mass Dimensions in millimetres Fitting size code C I 0.2 H 0,
18、3 Thread 2 MJ10x1 MJ 12x 1,25 R O -0,l 1 .o glpieca 4,08 4,17 0504 0505 19 14 1 15 I 1,0 9 I 5.99 0605 21 0805 0806 I 208 MJ 14x 1.5 24 1005 1008 I 218 MJ 16 x 1.5 25 12.55 l3 I 13.16 1205 1206 1209 16,60 16,86 17.62 25.96 27.90 28.63 MJ 18 x 1.5 23.8 27 1405 1408 1410 28 1605 1606 1610 1612 1805 18
19、07 1810 1813 MJ 22 x 1.5 25.8 30 MJ 24 x 1,5 27.8 32 - 27.8 2006 2007 201 2 201 5 MJ 27 x 1,5 35 - 30.8 32.8 2208 221 2 221 6 MJ 30 x 1,5 37 2508 2509 251 4 251 8 MJ 33 x 1.5 40 MJ 36 x 1.5 34.8 43 2808 2810 281 6 2820 321 O 321 2 MJ 39 x 1,5 45 1 14.32 1) Fitting size code: Diameter Nominal (outsid
20、e diameter of the corresponding pipe) and pipe wall thickness. 2) According to IS0 5855-3 3) Across flats CEN PRENx4019 94 3404589 0062558 783 D prEN 4019 Page 6 4 Designation EXAMPLE: Description block Identity block ELBOW 90. WELDED EN 401 9-0806 11 Number of this standard 1 I Fitting size code (s
21、ee table 1) i NOTE: if necessary, the code 19005 shall be placed between the description block and the identity block. 5 Marking Each part shall be marked in the position shown in figure 1 in accordance with EN 2424, style A. 6 Technical specification Parts supplied to this standard shall conform to the requirements of EN 3275, type II.
