1、7 L0323l13 - 0003837 _ _ 2 = AECMA PREN265b 89 A. E.C. M .A. STAN DARD prEN 2656 NORME A.E.C.M.A. Issue P 1 A.E.C.M.A. NORM January 1989 EDIT PAR LASSOCIATION EUROPEENNE DES CONSTRUCTEURS DE MATRIEL AEROSPATIAL 88, boulevard Malesherbes, 75008 PARIS - TL. 45-63-82-85 UDC : Key words : ENGLISH VERSIO
2、N Aerospace series Pipe couplings up to 56000 kPa . Fitting end, welded, Geometrical configuration Srie arospatiale Raccord dextrmit souder, jusqu 56000 kPa Configuration gomtrique Luft- und Raumfahrt Rohrverschraubung bis 56000 kPa Anschweipzapfen, Konstruktionsblatt This Aerospace Series pre-stand
3、ard 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 AECMA Commission following comment by the Member co
4、untries. Subsequent to the pubication of this pre-standard, 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 Centre (NPS)
5、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 final vote. t Nota - Extra copies can be supplied by B.N.A.E. - 8, rue Moreau-Vauthier - 92100 BOULOGNE-BILLANCOURT I I . C4 Cha
6、irman I Comments should be sent within six months after the date of publication decision I Edition approved for publication Mi. STAIB I A.E,C.M,A. I 88; Bd. Malesherbes 20th January 1989 75008 PARIS - FRANCE aecma 1988 I AECMA PREN2656 89 W L0323Ll 0003823 O U is blank Issue P prEN 2656 Page Scope a
7、nd field of application This standard defines the dimensions for the weld end of fittings intended for use In aircraft tubing (or fluid) systems. The fittings are to be made from corrosion resistant steel or titanium alloy with the follawing Characteristicst-. - Good welding properties - Minimum ult
8、imate tensile strength of860 MPa. - Rated pressure up to 56000 KPa. This standard shall be used for the preparation of the dimensional standard of tuDe fittings for given tube outer diameter$ irrespective of the fitting end sealing geometries. Previous page 1. Fitting1) D 1 size Pressure Nominal KPa
9、 diameter CdC . tube (4) 0404 28000 0405 56000 2. Dimensions - tkanCeS Dimensions in mrn 1. Table . S . D3 , D4 Li . L2 thick.; o- . +0,1 +OJ t0,l +o, 1 ness -0,l O O O .o . 3s2 u,7 . * i,4 017 Wall- os4 085 3 4,8 4J - - - r- 1,4 0,7 - , 5,7 58 I 64 0805 21000 , 095 7, 888 0808 56000. - 098 . 6,4 9,
10、l I005 21000 , 0,s 9 10,s _. “ 5,1 4. 28000 os4 5 O504 0505 56000 os5 0605 . 28000 0,5 . 5 1,4 OP7 6“ 6.1 0606 56000 0,6 4,s 619 - 0806 28000 . 8 . OP6 -6,8 b - 811. 8,9 1,4 - 0,7 1008 * 28000 -10 , OJ 8,4 10,l- : 11,l 1,4 OJ ioo 56000 l,o - 8,O. l1,l 14000 0,5 11 12,8 1209 28000 , 0,9 .10,2 13,l 12
11、12 . 56000 182 9,6 _I - 1205 1206 21000 OP6 12,9 13,k . 116 * 0,8 10,8 . 12,l 12 . 14,s 1405 14000 . I 095 13 - 1408 12 15,l 1410 28000 1 ,o I414 56000 14 11,2 15,2 12,t - - 15,l 14,l - 116 0,8 2 1 O00 0,8 (14) 1 3 I 1 AECMA- Issue P 1 prEN 2656 Page 4 Table, continued LOL23LL0003822 2 I Fitting11 D
12、1 S 1605 10500 . 095 size Pressure Nominal Wall4 code tube thick-. KPa diameter ness 1606 14000 0.6 14.8 1616 56000 1805 I 10500 I I 0.5 I 17 . A I 32 3210 10500 30 3212 I 29,6 Sizes in ( 1 are non-weferre. 28,l 32,l I? 2,4 I 1,2 33,2 1) Fitting size code = Code number for tube size in mm and wall thickness in 1/10 mm. .- 5 Designation I AECMA PREN2656 87 m 1012311 0003823 Y m I issue .P 1 prEN 2656 Page ti Description block WELD END Identity block EN2656-1805 II 1805 = Fitting size code (see table) Number of EN standard
