1、 - - STD-AECMA PREN 4547-ENGL 2000 W LOI12311 00LBb70 2b0 AECMA STANDARD prEN 4549 NORME AECMA Edition P 1 AECMA NORM September 2000 PUBLISHED BY THE EUROPEAN ASSOCIATION OF AEROSPACE INDUSTRIES (AECMA) Gulledelle 94 - 8-1200 BRUXELLES - Tel. (+32) 2 775 81 10 - Fax. (t32) 2 775 81 11 I 1 aecrna 201
2、 ICs: 49.080 Edition approved for publication 2000-09-29 Descriptors: aircraft industry, hydraulic system, fluid circuit, pipe fitting, heat resistant steel, nickel alloy, heat resistant material, characteristic, dimension, dimensional tolerance, designation Comments should be sent within six months
3、 after the date of publication to Gulledelle 94 C4 Chairman AECMA Mr Staib 8-1200 BRUXELLES ENGLISH VERSION Aerospace series Pipe coupling, in heat resisting steel or in heat resisting nickel alloy Coupling end, welded Design configuration Inch series Srie arospatiale Luft- und Raumfahrt Systme de r
4、accordement, Rohrverschraubung, en acier rsistant chaud ou en alliage de nickel rsistant chaud aus hochwarmfestem Stahl oder aus hochwarmfester Nickellegierung Extrmits souder Anschweizapfen Configuration gomtrique Konstruktionsblati Srie inch Inch-Rei he 1 This %Aerospace Series“ Prestandard has be
5、en drawn up under the responsibility of AECMA (The European Association of Aerospace Industries). It is published on green paper for the needs of AECMA- Members. It has been technically approved by the experts of the concerned Technical Commiifee following comment by the Member countries. Subsequent
6、 to the publication of this Prestandard, the technical content shall not be changed to an extent that interchangeabilify 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
7、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-Jacques Rousseau - 92138 ISSY-LES-MOULINEAUX CEDEX Co
8、pyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Page 3 prEN 4549: 2000 O Introduction The following dimensions and tolerances have been used on couplings
9、, 37“, spherical, in FE-PA3601 (X6CrNiTil8) or in FE-CM3901 (X1 OCrNiNbl8) material, welded on pipe in FE-PA3601 (X6CrNiTi18) material, or on couplings in NI-PH3601 (NiCr22MoNb) material, welded on pipe in NI-PH3601 (NiCr22MoNb) material, for aerospace applications with nominal pressure of class D i
10、n accordance with IS0 6771. They have to be confirmed for other materials or applications. I Scope This standard defines the dimensions and tolerances for the weld end of fluid system components mating with pipe. Both shall be: - from inch series; - of the same dimensional code; - made of corrosion
11、resistant steel or nickel alloy. 2 Normative references IS0 6771 Aerospace - Fluid systems and components - Pressure and temperature classifications 3 Dimensions - Tolerances See figures 1 and 2 and table 1. Dimensions and tolerances are in millimetres. -0,3 External conical part G External conical
12、part Tif any on product 7“k 1“ ! R6+1 , R 6 f 1 - Figure 1 Figure 2 a a NOTE diameter of the fitting is lower than diameter A. Figure 2 is applicable in addition with the dimensions and tolerances of figure I when the internal Previous page is blank Copyright Association Europeene des Constructeurs
13、de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-STD-AECMA PREN qSqS-ENGL 2000 1012311 001b72 O33 M 0,711 8,12 0.889 7.72 0,711 0,889 0,711 0,889 12,700 I 15,875 A008 BO08 A01 O BO10 1130 12,70 10,90 14
14、48 15.90 14,08 Page 4 prEN 4549: 2000 Table 1 F O - 0,05 G -t 0,l 0 H + 0,l 0 J i 0,05 0 0,351 0,70 12,80 1598 1,60 0.80 I 17965 0,711 0,889 17.25 1 19,05 1,80 I 19,151 0,90 2550 i- 31,85 1,10 I 38.20 4435 t 50,90 57,25 63,60 F 69,90 I 68845 0,71 I 0.889 68.05 I 69,80 0,50 76,30 82,65 89,00 I 01,70
15、2,40 1,20 1 14,40 127,O 139,80 152,50 165,20 * This code corresponds to: - tube wall thickness (A: 0,711 mrn; 8: 0,889 mm); - nominal diameter given in 16th of inches within three digits. Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AEC
16、MANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-4 Designation EXAMPLE: Identity block EN4549AOOS -r- Number of this standard 1 Dimensional code (see table 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-,-,-
