1、A. E. C. M .A. STAN DAR D prEN 3274 NORME A.E.C.M.A. Issue P 1 A.E.C.M.A. NORM December 1989 _ _ DIT PAR LASSOCIATION EUROPENNE DES CONSTRUCTEURS DE MATRIEL AROSPATIAL 88, boulevard Malesherbes, 75008 PARIS -TL. 45-63-82-85 UDC : ENGLISH VERSION Aerospace series Pipe coupling 8030 Thread end Geometr
2、ic configuration Luft- und Raumfahrt Rohrverschraubung 8030 Gewindeende Konstruktionsblatt This Aerospace Series. pre-standard has been drawn up under the responsibility of AECMA (Association Europenne des Constructeurs de Matriel Adrospatial). It is published on green paper for the needs of AECMA-M
3、embers. It has been technically approved by the experts of the concerned Commission following comment by the Member countries. Subsequent to the publication of this pre-standard, the technical content shall not be changed to an extent that interchangeability is affected, physically or functionally,
4、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 Standard to CEN (European Committee for Standardization) for final vot
5、e. Key words : Srie arospatiale Raccordement 8O30 Extrmit de filetage Configuration gomtrique / . AECMA - PREN3279 89 1012311 00051b:I . i: Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking pe
6、rmitted without license from IHS-,-,-AECMA PREN3aY 89 W 012311 0005170 b prEN 3274. Page 3 . 1 This standard specif ies-the characteristics of the 8“30 cone threaded end to be used for the design and manufacture of product standards for pipe fittings wherever this geometry is specified. Scope and fi
7、eld of application Nominal pressure: 28 O00 KPa 2 References IS0 585513 . I: Aerospace - MJ threads - Part 3: Limit dimensions for fittings for fluid . systems EN 2491 Aerospace series - Molybdenum disulphide solid film lubricants for application to removable fasteners in titanium, titanium alloy, c
8、orrosion resisting . steel and cadmium plating steel 1) EN 3275 Aerospace series - Pipe coupling 830 - Dynamic beam seal up to 28 O00 KPa - Metric series - Technical specification 2) 1) in preparation 2) Pub1 ished as AECMA pre-standard 3 Required characteristics 3.1 Configuration-Dimensions-Toleran
9、ces The configuration shall be in accordance with the figure; the dimensions and tolerances shall conform with the values shown in the figure and table. Threads and sealing faces shall be lubricated according to EN 2491 after surface protection. Copyright Association Europeene des Constructeurs de M
10、ateriel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AECMA PREN3274 89 m L01231L 000517L i W prEN 3274 Page 4 3.2 Thread The thread shall conform with IS0 5855/3 3.3 Surface roughness See figure. Unless other v
11、alues of referenced design standards are specified. 77 Break all sharp edges 0.1 mm to 0.4 mrn FORM A for parts wtth welding connecttng surface at oppostte end DETAIL Y Ftgure Conf (gui-at on (Dirn. see table 1) Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IH
12、S under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AECMA PREN327L1 87 W L0223Ll 0005372 T W prEN 3274 Page 5 Table 1 Table Dlrnenstons - tolerances and mass DLmensions tn mltmetres D Forr Forr DF O -0.2 6 .E 8 .E 10.: 12.c - - - - E min. 11 .
13、O5 Pipe DN wall thtckr O .4 O4 0.5 O .4 O5 0.5 06 0.5 0.5 0.6 O .5 0.8 O .5 12 0.6 o .9 O .5 14 0.8 1 .o O .5 O .6 1.0 1.2 O .5 O .7 1.0 1.3 O .6 O -7 1.2 1.5 O .8 22 . 1.2 1 .6 O .8 O .9 1 .4 1 .8 0.8, 1 .o 1 .6 2 .o 1 .o 1.2 lo l6 2o 25 28 32 B JO 0 22.0 25.0 28.0 31.0 34.0 37.0 20.0 -Oa3 0F -0.2
14、6.5 8.5 10.2 12 14 16 18 20 22 25 28 31 34 37 DG H O00 -0.3 +0.3 12 2 14 2 17 2.5 19 3.0 22 24 27 3.0 30 32 34 36 41 46 50 4.0 3.0 Tol. 5.5 6-5+0.8 7.5 0 9.5 11.5 13.5 14.5 16.5 18.5 +I .2 22 o 25 27 30.5 33.5 h13 12 l4 17 19 22 24 27 30 32 34 36 41 46 50 - - AECMA PREN327Ll 87 M 10123LL 0005378 O W
15、 1 _- prEN 3274 Page 11 Table 4 - tolerances and mass Table Dtmenslons tn mllimeires Dtmenstons - BM O -0.2 - 8 10 12 14 16 18 20 22 24 27 30 33 36 - 0N - DN 1) - 04 05 06 08 - 0D HI 1 - 3.2 4.2 5 6.7 E J 50.2 - 18.5 19.5 22.0 25.0 Thread 4ri 6ci MJ 8x1 MJ 10x1 MJ 121.25 MJ 141.5 13.2 15.5 18.9 21 .
16、I 10 12 14 16 18 MJ 161.5 MJ 181.5 MJ 201.5 MJ 221.5 MJ 241.5 8.7 10.6 11.4 13.3 15.3 24.5 26.7 30.1 33.5 35.7 26.0 27.0 27.0 27.0 27.0 20 22 25 28 32 - - MJ 271.5 MJ 301.5 MJ 331.5 MJ 361.5 18 20.8 22.4 25.6 37.7 39.9 45.6 51.2 27.0 27.0 27.0 20.5 MJ 39x1 .5 28.3 - 55.8 - 28.5 39 i) DN = Diameter N
17、ominal (outside diameter of the corresponding pipe) Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AECMA PREN327Li 7 1012311 0005179 2 _ _.- prEN 3274
18、 Page 12 Break all sharp edges 0.1 rnm to 0.4 mm FORM L bulkhead wtth O-rlng seallng grlplength for bulkheadwall and washer : max. 7.5rnm DETAIL Y R 0.20max. Ftgure-Configuratton (Dtm. see table 5) Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under licens
19、e with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,- AECMA PREN327Li 87 m LOL23LL 0005LO 7 = . PrEN 3274 Page i3 MJ ) 04 05 06 O8 10 12 14 16 18 20 22 25 28 32 Table -5 Thread 40 60 MJ 8x1 MJ 10x1 MJ 121.25 MJ 14x1 .5 MJ 16x1 .5 MJ 18x1 .5 MJ 20x1 .5 MJ 22x
20、1 .5 MJ 24x1 .5 MJ 27x1 .5 UJ 30x1 .5 MJ 33x1 .5 MJ 36x1 .5 MJ 39x1 .5 Table Dlmenslons - tolerances 0P 10.1 19 21 24 26 28 30 32 34 36 39 42 45 48 51 s h13 22 24 27 30 32 34 36 41 41 46 46 50 55 55 _I B O -0.1 - 2.9 3.2 24.5 6.5 2 4.2 26.7 8.5 23 2 5 30.1 10.2 27 2.6 6.7 33.5 12 30 3.0 8.7 35.7 14
21、32 10.6 37.7 16 34 11.4 39.9 18 36 3.0 13.3 45.6 20 38 15.3 45.6 22 40 18 51 .2 25 43 20.8 51.2 28 46 22.4 55.8 31 50 25.6 61 .3 34 52 28.3 61.3 37 55 4.0 3 .O an mass Dtmenslons n mllltmetres - 5.5 6.5 7.5 9.5 Il .5 13.5 14.5 16.5 18.5 22 25 27 30.5 33.5 - - - Tot. - k0.8 O i.1 .2 o - - T k0.2 5 5
22、5 6 6 6 6 6 6 6 6 7 7 7 - - - - - T) DN = D(ameter Nominal (outaide diameter of the correepondinp pipe) Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,
23、-LAECMA PREN327L1 87 I LOL233l 0005383 O I prEN 3274 Page 14 4 Designation 4.1 Designation for form A Each thread end shall only be designated as in the following example: Description block 8“30 CONE THREADED END -r ,- t -7 I - ci Number of EN standard. _ - ._ J Form - II Fitting size code (see tabl
24、e): :I _-_._I._ - - ._ - I - - - -J , 4.2 Designation for form B, C, D, E, F, G, H, I, K and L Description block i Identity block 8“30 CONE THREADED END f EN3274B05 T- I-!- Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
