1、ASD-STAN STANDARD NORME ASD-STAN ASD-STAN NORM prEN 4549 Edition P 2 October 2012 PUBLISHED BY THE AEROSPACE AND DEFENCE INDUSTRIES ASSOCIATION OF EUROPE - STANDARDIZATIONAvenue de Tervuren, 270 - B-1150 Brussels - Tel. 32 2 775 8126 - Fax. 32 2 775 8131 - www.asd-stan.orgICS: 49.080 Supersedes edit
2、ion P 1 of September 2000 and will supersede EN 4549:2003Descriptors: 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 Systme de raccordement, en acier rsistant chaud ou en
3、 alliage de nickel rsistant chaud Extrmits souder Configuration gomtrique Srie inch Luft- und Raumfahrt Rohrverschraubung, aus hochwarmfestem Stahl oder aus hochwarmfester Nickellegierung Anschweizapfen Konstruktionsblatt Inch-Reihe This “Aerospace Series“ Prestandard has been drawn up under the res
4、ponsibility of ASD-STAN (The AeroSpace and Defence Industries Association of Europe - Standardization). It is published for the needs of the European Aerospace Industry. It has been technically approved by the experts of the concerned Domain following member comments. Subsequent to the publication o
5、f 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 review by users and formal agreement of ASD-STAN, it will be submitted as a draft European Sta
6、ndard (prEN) to CEN (European Committee for Standardization) for formal vote and transformation to full European Standard (EN). The CEN national members have then to implement the EN at national level by giving the EN the status of a national standard and by withdrawing any national standards confli
7、cting with the EN. Edition approved for publication 1 October 2012 Comments should be sent within six months after the date of publication to ASD-STAN Mechanical Domain Copyright 2012 by ASD-STAN prEN 4549:2012 (E) 2 Contents Page Foreword 2 Introduction .3 1 Scope 4 2 Normative references 4 3 Dimen
8、sions Tolerances .4 4 Designation 6 Annex A (informative) Standard evolution form 7 Foreword This standard was reviewed by the Domain Technical Coordinator of ASD-STANs Mechanical Domain. After inquiries and votes carried out in accordance with the rules of ASD-STAN defined in ASD-STANs General Proc
9、ess Manual, this standard has received approval for Publication. prEN 4549:2012 (E) 3 Introduction The following dimensions and tolerances have been used on couplings, 37, spherical, in FE-PA3601 (X6CrNiTi18) or in FE-CM3901 (X10CrNiNb18) material, welded on pipe in FE-PA3601 (X6CrNiTi18) material,
10、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 in accordance with ISO 6771. They have to be confirmed for other materials or applications. prEN 4549:2012 (E) 4 1 Scope This standard de
11、fines 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 resistant steel or nickel alloy. 2 Normative references The following referenced documents are indispensable for the appl
12、ication of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 6771, Aerospace Fluid systems and components Pressure and temperature classifications 3 Dimensions Tolerances
13、See Figures 1 and 2 and Table 1. Dimensions and tolerances are in millimetres. Key 1 External conical part (if any on product standard) Key 1 Internal conical part (if any on product standard) 2 (internal diameter of the fitting) 3 See Figure 1 Figure 1 Figure 2 0,3 0,1 Ra 3,2 Ra 1,6 C prEN 4549:201
14、2 (E) 5 Table 1 Dimensional code aNominal diameter Wall thickness of tube A E F G H J 0 0,1 0,1 0 0 0,05 0,1 0 0,1 0 0,05 0 A003 4,763 0,711 3,364,85 0,35 1,40 4,93 0,70 B003 0,889 2,96 A004 6,350 0,711 4,95 6,35 06,45 B004 0,889 4,55 A005 7,924 0,711 6,52 7,95 8,02 B005 0,889 6,12 A006 9,525 0,711
15、8,12 9,55 9,62 B006 0,889 7,72 A008 12,700 0,711 011,30 12,70 0,50 1,60 12,80 0,80 B008 0,889 010,90 A010 15,875 0,711 014,48 15,90 15,98B010 0,889 014,08 A012 19,050 0,711 017,65 19,05 1,80 19,15 0,90 B012 0,889 017,25 A016 25,400 0,711 024,00 25,40 2,20 25,50 1,10 B016 0,889 023,60 A020 31,750 0,7
16、11 030,35 31,75 2,40 31,85 1,20 B020 0,889 029,95 A024 38,100 0,711 036,70 38,10 38,20B024 0,889 036,30 A028 44,450 0,711 043,05 44,45 44,55 B028 0,889 042,65 A032 50,800 0,711 049,40 50,80 50,90B032 0,889 049,00 A036 57,150 0,711 055,75 57,15 57,25 B036 0,889 055,35 A040 63,500 0,711 062,10 63,50 6
17、3,60B040 0,889 061,70 A044 69,850 0,711 068,45 69,80 69,90 B044 0,889 068,05 A048 76,200 0,711 074,80 76,20 76,30B048 0,889 074,40 A052 82,550 0,711 081,15 82,55 82,65 B052 0,889 080,75 A056 88,900 0,711 087,50 88,90 89,00B056 0,889 087,10 A064 101,600 0,711 100,20 101,60 101,70 B064 0,889 099,80 A0
18、72 114,300 0,711 112,90 114,30 114,40B072 0,889 112,50A080 127,000 0,711 125,60 127,00 127,10 B080 0,889 125,20A088 139,700 0,711 138,30 139,70 139,80B088 0,889 137,90A096 152,400 0,711 151,00 152,40 152,50 B096 0,889 150,60A104 165,100 0,711 163,70 165,10 165,20B104 0,889 163,30A112 177,800 0,711 1
19、76,40 177,80 177,90 B112 0,889 176,00A120 190,500 0,711 189,10 190,50 190,60B120 0,889 188,70a This code corresponds to: tube wall thickness (A: 0,711 mm; B: 0,889 mm); nominal diameter given in 16thof inches within three digits. prEN 4549:2012 (E) 6 4 Designation EXAMPLE Identity block EN4549A008Nu
20、mber of this standard Dimensional code (see Table 1) prEN 4549:2012 (E) 7 Annex A (informative) Standard evolution form MODIFICATION REASON AND VALIDATION Figure 2 page 4 Before: No definition, no dimension for the welded end area. After: Added nota “see Figure 1” for the definition of the welded en
21、d. Dimensions of welded end area are the same for both cases (Internal configuration with straight hole or with conical area). Table 1 (dimensions) Before: Dimension H (internal diameter of welded end) was 4,86 for A003 and B003. After: Dimension H is 4,93 for A003 and B003. Accordance with standard DT45-01.
