1、CEN PREN83248 94 3404589 0064368 645 AECMA STANDARD prEN 3248 NORME AECMA Edition P 1 AECMA NORM June 1994 DIT PAR LASSOCIATION EUROPEENNE DES CONSTRUCTEURS DE MATERIEL 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 Adapters, reduced pipe end with locking ring Srie arospatiale Luft- und Raumfahrt Raccordement 8O30 en alliage de titane Raccords de rduction planter, avec bague de freinage Rohrverschraubung 8O30 aus Titanlegierung Anschluvers
3、chraubungen, reduziertes Rohrende, mit Sicherungsring This “Aerospace Series“ 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 approv
4、ed 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 interchangeability is affected, physically or functionally, without re-identification of t
5、he standard. After examination and signature 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. Nota - Extra copies can be
6、 supplied by B.N.A.E. - Technopolis 54 - 199, rue Jean-Jacques Rousseau - 921 38 ICSY-LEC-MOULINEAUX CEDEX Comments should be sent within six months after the date of publication to C4 Chairman Edition approved for publication 1994-06-30 AECMA Technopolis - 175, rue Jean-Jacques Rousseau 921 38 Issy
7、-les-Moulineaux Cedex - FRANCE Mr. Staib 0 aecma 1994 Page 2 prEN 3248 CEN PRENx3248 94 W 3404589 0064367 581 9 (C/H2LL/4.F/C/A/A) Contents list 1 Scope 2 Normative references 3 Required characteristics 4 Designation 5 Marking 6 Technical specification CEN PRENx3248 94 3404587 0064370 2T3 W (C/HZLL/
8、4.F/C/A/A) Page 3 prEN 3248 1 Scope This standard specifies the characteristics of an adapter, reduced pipe end, with locking ring, for installing in a boss. The adapter is manufactured from titanium alloy and is intended for use in aircraft fluid system pipelines. Nominal pressure: up to 28 O00 kPa
9、 Temperature range: - 55 OC to 135 OC 2 Normative references IS0 5855-3 EN 2424 EN 2491 EN 2602 EN 2603 EN 2604 EN 2645 EN 3275 EN 3314 MIL-L-460106 Aerospace - MJ threads - Part 3: Limit dimensions for fittings for fluid systems Aerospace series - Marking of aerospace products z, Aerospace series -
10、 Molybdenum disulphide dry film lubricants - Coating methods l) Aerospace series - Ports for installation of straight metric-size unions with locking ring - Dimensions 3) Aerospace series - Straight metric-size unions with locking ring - Port end - Dimensions 3) Aerospace series - Straight metric-si
11、ze unions with locking ring - 830 union interface - Dimensions 3) Aerospace series - Straight metric-size unions with locking ring - Locking ring - Dimen- sions Aerospace series - Pipe coupling 8O30 - Dynamic beam seal up to 28 O00 kPa - Metric series - Technical specification J) Aerospace series -
12、Titanium alloy TI-P64001 - Solution treated and aged - Bar for machining - d 75 mm 21 Lubricant, solid film, heat cured, corrosion inhibiting .) ) In preparation at the date of publication of this standard 2) Published as AECMA Standard at the date of publication of this standard J) Published as AEC
13、MA Prestandard at the date of publication of this standard .) Published by: Department of Defense (DOD), the Pentagon, Washington, D.C.20301. CEN PREN*3248 94 3404587 0064373 L3T M Page 4 prEN 3248 3 Required characteristics 3.1 The configuration shall be in accordance with igure 1; the dimensions a
14、nd tolerances I values shown in figure 1 and table 1 prior to application of dry film lubricant. Configuration - Dimensions - Tolerances (C/HZLL/I.F/C/A/A) al conform with 3.2 Surface roughness See figure 1, unless other values of referenced design standards are specified. 3.3 Material (for adapter)
15、 See EN 3314. 3.4 Surface treatment (for adapter) Lubrication: see EN 2491, on threads and sealing faces. NOTE: Until EN 2491 is published, the lubricant may be applied using MIL-L-460108. Abrasive blasting ie shall be carried out using aluminium oxide within the grade 90-220 mesh at a pressure of 4
16、80 kPa max. for a time to give a clean even surface and then rinsed in clean cold water. Lubricant shall be applied within 3 h. Break all sharp edges (for adapter) v/ 0,l to 0,4 mm Port end Sealin g face ,WEN 2602 Dry Lubrication f5- Port end Locking ring EN 2603 EN 26b5 Nut end EN 2604 *) Design di
17、mension only Figure 1: configuration CEN PRENx3248 94 = 3404589 00b4372 076 (C/H2LL/4.F/C/A/A) Page 5 prEN 3248 Table 1: Dimensions. tolerances and mass Dimensions in millimetres - M 0,5 _. 17,O 17,O 18.5 17,O 18,5 20,3 a 18,5 20.3 Nut end (reduced) Thread 2 .) ON 4h 6h I D 1 Ref it t ing size :ode
18、1) 0805 1005 1006 1205 1206 1208 1405 1406 1408 1410 1606 1608 1610 1612 1808 1810 1812 1814 201 o 201 2 2014 2016 2212 2214 2216 2218 2414 2416 2418 2420 2716 2718 2720 2722 3018 3020 3022 3025 3320 3322 3325 3328 -ocki ng ring :ode 6) 098 125 136 Port end (normal ) Th;aShl *Il MJ 8x1 i: MJlOxl EF
19、J tO,2 Ref t0,15 O Mass g/piece max . 6.75 10.74 12,77 13.51 16,51 16,28 16,11 19,95 19,25 21,53 24,44 23,31 25,71 21,75 30,95 33.72 29,51 31 ,O6 40,02 35.51 37,22 35.44 42.20 44,Ol 4230 40.49 55.71 53,90 52,09 47.55 72.48 73,11 65,Ol 56,Ol 89,13 8278 75,77 76,57 101,74 91,62 94,50 83,06 mr-pz= MJlO
20、xl I 05 I I 4,40 I30,6 I 7.25 16 O 14 7 19,o 21,o 20,O 22,6 t 20.0 264 7,25 5,o 4.2 8,75 7.25 8.75 10,55 7.25 8,75 10,55 10,55 8,75 I MJlOxl MJ14x1.5 O8 MJ16x1.5 I10 MJ14x15 i l2 153 I- MJ16x1,5 14 170 192 MJ18x1,5 I12 MJ14x1,5 I O8 807 10,6 11,4 8,7 10,6 11.4 10,6 11,4 13,3 11.4 13.3 15,3 13,3 13,3
21、 15.3 18,o 12.50 42,2 I MJ22x1,5 20 I 214 10,55 20,5 _. 20.7 20,6 - 20,0 231 MJ24x15 i 22 253 43,3 MJ24x1,5 18 15.3 43,3 43J5 10.75 MJ27x1,5 20 18,O MJ30x1.5 22 20.8 43,5 MJ24x1,5 18 15,3 44,3 10.55 20,20 295 MJ27x1,5 25 I MJ27x1,5 MJ30xl.5 20 22 MJ30x1r5 I 28 23,70 - -I- 320 25 20 - MJ33x1,5 MJ27x1
22、,5 MJ33x15 i 32 MJ30x1.5 22 20,8 25,40 ;I:; MJ33x1.5 25 22,4 MJ36x1,5 28 25,6 45,5 350 l) Fitting size code: Thread diameter of port end (thread 1) and DN of nut end (thread 2) 2) Outside diameter of the corresponding normal pipe system “) DN Diameter Nominal (outside diameter of the corresponding r
23、educed pipe) “) According to IS0 5855-3 5, According to EN 2604 6) According to EN 2645 Page 6 prEN 3248 CEN PRENx3248 94 D 3404589 O064373 TO2 (C/HZLL/I.F/C/A/A) 1 Designation EXAMPLE: Identity block EN3248-1406 I Description block ADAPTER, REDUCED T Number of this standard Fitting size code (see t
24、able 1) NOTE: block. If necessary, the code I9005 shall be placed between the description block and the identity 5 Harking 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.
