1、CEN PREN*3bb3 94 3404589 O064438 TTO Edition approved for publication 1994-06-30 AECMA STANDARD NORME AECMA AECMA NORM Comments should be sent within six months after the date of publication to AECMA Technopolis - 175, rue Jean-Jacques Rousseau 921 38 Issy-les-Moulineaux Cedex - FRANCE prEN 3663 Edi
2、tion P 1 June 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 : ENGLISH VERSION Aerospace series Pipe coupling O-rings in acrylonitrile-butadiene elast
3、omer (NBR), 75 IRHD, Temperature range : - 55 OC to I35 OC Srie arospatiale Luft- und Raumfahrt Raccordement Rohrverschraubung Joints toriques en lastomre base dacrylonitrile-butadine (NBR), 75 DIDC, Gamme de tempratures : - 55 OC 135 OC O-ringe aus Acrylnitril-Butadien - Elastomer (NBR), 75 IRHD, T
4、emperaturbereich : - 55 OC bis 135 C 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 approved by the experts
5、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 the standard. After
6、 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 supplied by B.N.A
7、.E. - Technopolis 54 - 199, rue Jean-Jacques Rousseau - 921 38 ISSY-LEC-MOULINEAUX CEDEX C4 Chairman Mr. Staib Page 2 prEN 3663 CEN PREN*3bb3 94 3404589 0064439 937 (C/H2LL/4.F/C/A/A) Contents list 1 Scope 2 Normative references 3 Required characteristics 4 Oesignation 5 Marking 6 Technical specific
8、ation CEN PRENx3663 94 m 3404589 0064420 b59 m (C/HZLL/4.F/C/A/A) Page 3 prEN 3663 I Scope This standard defines high quality O-rings in acrylonitrile-butadiene elastomer (NBR), 75 IRHD, according to MIL-P-83461. O-rings are intended for demanding applications in mineral and synthetic oil systems fo
9、r operating conditions defined as follows: Temperature range: - 55 “C to 135 OC 2 Normative references IS0 3601-1 Fluid systems - Sealing devices - O-rings - Part 1: Inside diameters, cross-sections, tole- rances and size identification code Fluid systems - Sealing devices - O-rings - Part 3: Qualit
10、y acceptance criteria Aerospace series - Straight metric-size unions with locking ring - Configuration - O-ring dimensions I) IS0 3601-3 EN 2607 MIL-P-83461B Packing, preformed, petroleum hydraulic fluid resistant, improved performance at 275 “F (135 OC) z, ) Published as AECMA Prestandard at the da
11、te of publication of this standard 2, Published by: Department of Defense (DOD), the Pentagon, Washington, D.C. 20301. Page 4 prEN 3663 CEN PREN*3bb3 94 m 3404589 0064421 595 (C/H2LL/4.F/C/A/A) 3 Required characteristics 3.1 The configuration of the O-rings shall conform to figure 1 and table 1. All
12、 dimensions and tolerances shall conform to the values given in table 1. The values are taken from IS0 3601-1, series A. The masses stated in this standard are standard values and shall not be considered as a qualification criterion for joints. Configuration - Dimensions - Tolerances 3.2 Dimensions
13、and visual inspection of the appearance The inspection of dimensions, of appearance defects and surface condition shall be carried out according to IS0 3601-3, grade S. 3.3 Material Acrylonitrile-butadiene elastomer (NBR) according to MIL-P-834616, para 3.2 and 3.4, hardness 75 IRHD. +fi SECTION DIA
14、METER I I I- I Figure 1: Configuration CEN PREN*3bb3 94 = 3404589 00b4422 421 (C/HZLL/4.F/C/A/A) 1,80 2,65 3,55 5,30 A B C D Page 5 prEN 3663 Table 1: Inside diameters, cross-sections and tolerances, mass and codes Section diameter d2 Code d2 Inside di ameter dl 1,80 2,oo 2.24 2.50 2.80 3.15 3,55 3,
15、75 4,OO 4,50 4,87 5,OO 5,15 5,30 5,60 6.00 6,30 6,70 6.90 7,lO 7,50 8,OO Code dl Mass kg/lOOO pieces l) (standard value) To1 . O01 8 0020 0022 0025 0028 0031 0035 0037 0040 0045 0048 0050 0051 0053 0056 0060 0063 0067 0,03 0,04 0.04 0.04 0,04 0,05 0,05 0,05 0,06 0.06 *) 0,06 0.07 0,07 0,07 0,07 0,08
16、 *) 0,08 0,08 f 0,13 0069 0071 0075 0080 0,08 0.09 0.09 0,lO 5 0,14 0085 0087 O090 0095 O100 8,50 8,75 9.00 9,50 10,oo 0,lO 0,lO 0,11 0.11 *) 0,12 f 0,15 0106 0112 10.60 11.20 0.12 0,13 *) f 0.16 O1 18 O1 25 0132 11,80 12,50 13,20 0,13 0.14 0,14 *) f 0,17 0140 O1 50 14.00 15,OO 0,15 0.16 *) 0,35 0,3
17、7 f 0,18 O1 60 16,OO 0,17 0,39 i: 0,19 f 0,20 0170 O1 80 17,OO 18.00 0,18 *) 0,41 0,43 0,81 0190 19,oo t 0,21 0,20 *) 0,45 0,84 (continued) Page 6 prEN 3663 CEN PRENw3bb3 94 3404589 Ob4423 368 (C/H2LL/4.F/C/A/A) Table 1: (continued) Dimensions in millimetres section diameter d2 I CEN PRENu3bb3 94 D
18、3404589 O064424 2T4 Page I prEN 3663 Table 1: (continued) Dimensions in millimetres I (continued) I Page 8 prEN 3663 Section diameter d2 1 1.80 I 2.65 CEN PRENa3bb3 74 3404587 O064425 130 ( (C/H2LL/4. F/C/A/A) ) 3.55 I 5.30 Table 1: (concluded) Dimensions in millimetres Inside ri. Code dl di ame ter
19、 Tol. I Mass kg/1000 pieces (standard value) Code d2 Description block IA lB IC lo Identity block *) per EN 2607 4 Designation EXAMPLE: 5 Marking No material marking and no identification shall be indicated on the part. The identification marking shall be marked on the packing according to the technical specification. 6 Technical specification According to IS0 3601-3
