1、CEN PREN*374b 94 3404589 0080973 b2 D AECMA STANDARD NORME AECMA AECMA NORM prEN 3746 Edition P 1 November 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 : Descript
2、ors : ENGLISH VERSION Aerospace series O-rings, in fluorosilicone rubber (FVMQ) Hardness 80 IRHD Srie arospatiale Joints toriques, en lastomre fluorosilicone (FVMQ) Duret 80 DIDC Luft- und Raumfahrt O-Ringe, aus Fluorosilikon (FVMQ) Hrte 80 IRHD This “Aerospace Series“ Prestandard has been drawn up
3、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 the Member countries. Subsequent
4、 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 Centre (NPS) and formal agreemen
5、t 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-Jacaues Rousseau - 921 38 ICSY-LEC-MOULINEAUX CEDEX C
6、8 Chairman Edition approved for publication Comments should be sent within six months after the date of oublication to 1994-11-18 AECMA Technopolis - 175, rue Jean-Jacques Rousseau 921 38 Issy-les-Moulineaux Cedex - FRANCE Mr Williams aecma 1994 CEN PREN*3746 94 m 3404589 0080972 7T9 m Page 3 prEN 3
7、746 : 1994 1 Scope This standard specifies the characteristics of O-rings in fluorosilicone rubber (FVMQ), hardness 80 IRHD for aerospace applications. 2 Normative references IS0 3601-1 Fluid systems - Sealing devices - O-rings - Part 1 : inside diameters, cross-sections, tolerances and size identif
8、ication code EN 3376 Aerospace series - Limits of surface imperfections of elastomeric toroidal sealing rings (O-rings) 1) EN 3747 Aerospace series - O-rings, in fluorosilicone rubber (FVMQ) - Technical specification 1 EN 3827 Aerospace series - Fluorosilicone rubber (FVMQ) - Hardness 80 IRHD 2, 3.
9、Application 3.1 Typical use These O-rings are intended to be used in air, mineral and synthetic oil and fuel systems. NOTE : Not to be used with phosphoric ester type hydraulic fluids (permanent or temporary immersion). 3.2 Temperature range - Continuous service : from - 55 OC to + 150 OC ; - Interm
10、itent service : from - 55 OC to + 200 OC. 4 Required characteristics 4.1 Configuration - Dimensions - Tolerances - Masses Dimensions and tolerances are in millimetres. 1) PuMished as AECMA Prestandard at the date of publication of this standard 2) In preparation at the date of publication of this st
11、andard Previous page is blank CEN PRENt374b 94 3404589 0080973 635 O100 0106 0112 0118 0125 0132 0140 0150 10,O 0,15 0,135 lor6 0,16 0,14 11,2 0,15 11,8 0,16 12,5 0,17 . 0,165 13,2 0,17 14,O 0,18 , 0,18 15,O 0,19 0375 0387 37,5 I 0,32 I 0,46 38,7 I 0,32 I 0,47 0412 0425 0437 0450 0475 0500 41,2 0,34
12、 0,50 42,5 0,35 0,51 43,7 0,525 45,O 0,36 0,54 47,5 0,38 0,57 50,O 0,39 0,60 0530 0560 53,O 0,41 0,63 56,O 0,42 0,67 0345 0355 34,5 0,30 0,42 35,5 0,31 0,43 Page 4 prEN 3746 : 1994 4.1.1 Configuration code A Section diameter d2 = 1,8 k 0,08 3, See figure 1 and table 1. di Figure 1 Table 1 7FF7 Code
13、Nom. TOI rt I d, IMass dl IMass ) I Code I Nom. I TOI f I Code Nom. I Tolf I 0365 I 36,5 I 0,31 I 0,45 I a 40,O 1 0,33 I 0,49 I 0,055 Oll3 F 10051 I 5,15 1 0053 5,3 0056 5,6 0060 6,O 0063 6,3 0067 6,7 0069 6,9 0071 7,l 0075 7.5 07501 75,O 1 0,53 I 1 0800 80,O 0,56 0,95 0850 85,O 0,59 O900 90,O 0,62
14、1,07 02581 2518 1 0,25 I E;: 0265 26,5 0280 28,O 0,26 0,345 0300 30,O 0,27 0,37 0,14 09501 95,O 1 0,64 I 1,12 1 %pfEp-l 1120 112,O 0,74 1,32 o, 1 25 Oll 5 11801118,O I 0,77 I 1,39 1250 1125.0 I 0.81 I 1.47 100951 9,5 I I 1 I I MaSc N kgll uuu parts A 3) Conforms to IS0 3601-1 - CEN PRENx3746 94 m 34
15、04589 0080974 571 m 0258 0265 0280 0300 Page 5 prEN 3746 : 1994 25,8 0,71 0630 63,O 0,46 1,65 26,5 0,73 0650 65,O 0,48 1,70 28,O 0,26 0,77 0670 67,O 0,49 1,75 30,O 0,27 0,82 0690 69,O 0,50 1,80 4.1.2 Configuration code B Section diameter d2 = 2,65 f 0,09 4, See figure 2 and table 2. Figure 2 Table 2
16、 I , d, I IMarr 1)11 , d, I IMars 1 Code Nom. Tolf Code Nom. Tolf 0500 50,O 0,39 1,32- 0515 513 0,40 1,36 ,0530 53,O 0,41 1,39 0545 54,5 1,43 0560 56,O 1,47 ,0580 58,O 0,44 133 0600 60,O 1,57 0615 61.5 1.61 0,42 o,45 =: 1 0387 38,7 4/42 0925 92,5 0,63 0400 40,O 0,33 4/55 0950 95,O 0,64 10,07 0412 41
17、,2 0,34 4,67 0975 97,5 0,66 10,32 10425 1 42,5 I 0,35 I :8; / 1000 1100,O 1 0,67 1 10,57 1 0437 43,7 1030 103,O 0,69 10,87 0450 45,O 0,36 5,05 1060 106,O 0,71 11,18 I0630 I 63,O I 0,46 I 6,86 II 1500 I150,O I 0,95 1 15,59 I 10710 I 71,O 1 0,51 1 7,66 11 1700 1170,O I 1,06 1 17,59 1 0730 73,O 0,52 7,
18、86 1750 175,O 1,09 18,09 0750 75,O 0,53 8,06 1800 180,O 1/11 18/60 I0775 1 77,5 I 0,55 1 8,32 /j 1850 1185,O 1 1,14 1 19,ll I 0800 80,O 0,56 8,57 1900 190,O 1,17 19,61 0825 82,5 0,57 8,82 1950 195,O 1,20 20,ll Page 7 prEN 3746 : 1994 I 1 i Mass N ka/l O00 Darts 1 6) Conforms to IS0 3601-1 CEN PRENr3
19、74b 94 = 3404589 0080977 280 Page 8 prEN 3746 : 1994 4.1.5 Configuration code E Section diameter d2 = 7.00 f O, 15 7, See figure 5 and table 5. Figure 5 Table 5 1) Mass N kg/l O00 parts I 7) Conforms to IS0 3601-1 - CEN PREN*3746 94 = 3404589 0080978 117 Description block Page 9 prEN 3746 : 1994 Identity block 4.2 Material EN 3827 5 Surface imperfections EN 3376 6 Designation EXAMPLE : NOTE : If necessary the code 19055 shall be placed between the identity block. 7 Marking EN 3747 75 - description block and the 8 Technical specification EN 3747
