1、A.E.C.M.A. STANDARD NORME A.E.C.M.A. A.E.C.M.A. NORM Edition approved for publication prEN 3049 Issue P 1 August 1990 Commenfs should be sent within six months C8 Chairman after the date of Dublicafion decision DIT PAR LASSOCIATION EUROPENNE DES CONSTRUCTEURS DE MATRIEL AROSPATIAL 88, boulevard Male
2、sherbes, 75008 PARIS -TEL. 45-63-82-85 UDC : Key words : ENGLISH VERSION Aerospace series O-Rings Srie arospatiale Joinfs toriques Luft- und Raumfahrt O-Ringe This Aerospace Series) pre-standard has been drawn up under the responsibility of AECMA (Association Europenne des Constructeurs de Matriel A
3、rospatial). It is published on green paper for the needs of AECMA-Members. It has been technically approved by the experts of the concerned Commission folio wing comment by the Member countries. Subsequent to the publication of this pre-standard, the technicat content shall not be changed to an exte
4、nt that interchangeability 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 Official Services of the Member countries it will be submitted as a draft European St
5、andard to CEN (European Committee for Standardization) for final vote. 1990-08-24 A.E.C.M.A. 88, Bd. Malesherbes Mr. WILLIAMS 75008 PARIS - FRANCE aecma 1990 -A-ECMA PREN3099 i0 R 1012313 0001i78 9 prEN 3049 Page 3 1 Scope and field of application This standard defines the characteristics of O-rings
6、 in fluorocarbon elastomer to PrEN 2798. The O-rings are intended for applications in air, mineral and synthetic oil and fuel systems. Operating conditions - temperature (a) Continuous operation : -2OOC to t225C. (b) static applications minimum temperature of use -500. Limitation: (a) Not to be used
7、 with phosphoric ester type hydraulic fluids (permanent or temporary immersion). 2 References IS0/3601/1 Fluid systems - Sealing devices - O-rings - Part 1: Inside diameters, cross-sections, tolerances and size identification code 1). EN 2798 Aerospace series - Fluorocarbon - Rubber (FPM) (Low compr
8、ession set) hardness 80 1). EN 3050 Aerospace series - O-rings in low compression set fluorocarbon rubber - Technical specification 2). EN 3376 Aerospace series - Limits of surface imperfections of elastomeric toroidal sealing rings (O-rings) 2). 3 Required characteristics 3.1 Configuration - dimens
9、ions - tolerances Configuration : See figure 1. imensions and tolerances : See figure 1 and tables 1 to 5. Dimensions in millimetres, 3.2 Material Fluorocarbon elastomer : See EN 2798. 1) In preparation at the aafe of publication of the present standard. 2) Published as AECMA pre standard at the dat
10、e of publication of the present standard. -1 AECMA PREN3049 90 m 1012311 0004788 0-i: prEN 3049 Page 4 3.3 Surface imperfections Inspection of surface imperfections: see EN 3376. Section Y-Y Tigure 1 . AECMA PREN30Li7 90 W L0123LL OOO 2 Wi prEN 3049 Page 5 Table 1 Section Diameter d2 - 1,8 _+ 0, : C
11、ode A i I 1 Dia 1 dl I to1 I t Codel I o100 I 10,o 1 a,15 0,05 0,06 0.06 0.10 0.13 0.14 I 0.15 1 0,16 to1 . Mass I? + - 0,16 0,18 0.16 0,19 0,17 0,20 0,17 O,21 0,17 0,22 0,18 0,23 0,18 0,25 0,19 0,26 0,20 0,28 0,20 0,29 0,21 0,31 0,2i 0,32 0,22 0,34 0.20 0.36 - - 0387 0400 0412 0425 0437 0450 0475 0
12、500 0530 0560 0600 0630 0670 0710 0750 iP.4 1 0,321 0,60 0,33 0,62 0,34 0,64 42.5 0.35 0.65 TcJmp%- 0,36 0,69 106.0 0.71 1.59 1180 118,O 0,77 1,77 1250 125,O 0,81 1,87 : 1) Mass : Kg/l00 pieces AECMA PREN3097 90 M 3032333 0009770 7 M-1 prEN 3049 Page 6 Table 2 Section Diameter = d2 2,65 +O,W : Code
13、B I Dia Id1 I to1 I Mass 1) I Code I I PI .I 1 0140 114.0 10.18 10.53 I .l. I. I I I I 1) Mass: Kg/lOOO pieces 0437 43,7 0450 45,O 0,36 1,53 1400 140,0 0,89- prEN 3049 Page 7 Table 3 Section Diameter = d2 3.55 3,l : Code C Dia dl to1 Mass 1) Dia dl to1 Mass I) Dia dl to1 Mass 1) + Code - Code - Code
14、 - + + 0515 51.5 0,40 3,18 0530 53.0 0,41 3,26 0545 54.5 0.42 I 3.35- 1280 128.0 0.83 7.59 1320 132,O 0,85 7.82 1360 136.0 0.87 8.05 I 0345 i 3415 i 0.30 2.19 I I 0450 145.0 10.36 I 2.80 1) Mass: Kg/100 pieces I 0560 i 56;O i 0.42 i 3143 I 0710 171.0 0.51 I4,30 0730 t 73.0 I 0.52 I 4.42 0875 87,5 0.
15、60 5,25 O900 90,O 0,62 5.40 0950 95.0 0.64 5.68 6,32 2580 258,O 1.54 15.07 2650 265,O 1.57 15.44 2800 280,O 1.65 16,36 2900 290.0 1.71 16.94 3000 300.0 1,76 17,51 3070 307.0 1.80 17.93 3150 315,O 1.84 18.37 3350 . 335,O 1,95 19.53 3550 355.0 2.06 20,68 I I AECMA PREN3047 90 LOL23LL OOOLi92_ 2 W-i i
16、prEN 3049 Page 8 Table 4 Section Diameter - 5,30 +0,13 ; Code D Dia I dl I to1 1 Code I I+ I Dia dl to1 Mass 1) + Code - I 0425 i 4215 i 0.35 i 6,12 1 0437 43,7 O135 6126 0450 4510 . 0,36 6144 0462 46,2 Ot37 6t60 I 0475 4715 O138 6t76 0487 48t7 O138 6192 0500 50,O 0,39 7108 , 0515 I 51,5 I o140 I 7t
17、26 0530 I 53.0 I 0.41 I 7.47 I , - I 1450 r 145.0 10.92 I 19.25 1) Mass: Kg/1000 pieces 1 1500 I 150.0 10.95 I 8. _, . - .- I.9t89 1550 155r0 Ot98 20,53 1600 160,O 1100 2I.t17 1650 165,o 1,03 , 21181 1700 17010 1,06 22 t 45 1750 17510 1,O9 23r09 1800 180.0 1.11 23.74 I I l I prEN 3049 Page 9 Table 5
18、 2360 2430 2500 2580 2650 2720 I Section Diameter - 7,O +Qt15 : Code E I .- 23610 1142 54/30 243tO 1146 55 1 86 250,O 1,49 57 1 42 . 25alo i154 59 1 21 26510 1157 60 I78 27210 1161 62,34 I I Dia I d. I to1 I Mass 1) 1 Code I li I I I I ! 0190 I 109.0 10.72 I 25 92 2120 21210 1129 48 93 50I27 - 3150
19、. 3250 3450 3550 3650 3750 3350 - I 2ao;o I 65 I 64.13 I I I I I - 1) Mass: Kg/1000 pieces I I AECMA PREN3049 90 M LOL23LL 0004794 b W-1 .- . prEN 3049 Page 10 4 Designation Each O-ring shall only be designated as in the following example. Description block . Identity block 0-r ing , EN30,49IO“ Reference of the EN standard Section diameter code, see tables Diameter code, see tables. Note: If necessary, the desing code I9055 may be included between O the description block and the identity block. 5 Marking See EN 3050. 6 Technical specification See EN 3050.
