1、ASD-STAN STANDARD NORME ASD-STAN ASD-STAN NORM prEN 3635 Edition P 2 December 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 edi
2、tion P 1 of August 1990 and will supersede EN 3635:2008Descriptors: ENGLISH VERSION Aerospace series Weld lip Geometrical configuration Srie arospatiale Embout souder Configuration gomtrique Luft- und Raumfahrt Rohranschlussenden geschweit Masse This “Aerospace Series“ Prestandard has been drawn up
3、under the responsibility 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
4、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 review by users and formal agreement of ASD-STAN, it will be submitted as a draft
5、 European Standard (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 sta
6、ndards conflicting with the EN. Edition approved for publication 1 December 2012 Comments should be sent within six months after the date of publication to ASD-STAN Mechanical Domain Copyright 2012 by ASD-STAN prEN 3635:2012 (E) 2 Contents Page Foreword 2 1 Scope 3 2 Normative references 3 3 Fitting
7、 dimensions .3 4 Tube end geometry 5 5 Designation 5 6 Indications on drawings 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
8、of ASD-STAN defined in ASD-STANs General Process Manual, this standard has received approval for Publication. prEN 3635:2012 (E) 3 1 Scope The purpose of this standard is to specify the dimensions and tolerances for orbital-welding fittings, intended for stainless steel fluid pipes to EN 3717. 2 Nor
9、mative references The following referenced documents are indispensable for the application 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. EN 3717, Aerospace series Tubes
10、 Selection for engines fluid systems 3 Fitting dimensions See Figure 1 and Table 1. Key 1 Break edges 0,1 max. Figure 1 1,6 prEN 3635:2012 (E) 4 Table 1 Dimensions Dimensions in millimetres Diameter code Tube outside diameter (e) a A B D S T W h12 0,1 0 0 0,1 0,1 0 0,1 0 0 0,1 0 0,1 060 6 0,6 0,8 1
11、4,7 4,3 3,9 6 6 0,4 1 0,4 080 8 0,6 0,8 1 6,7 6,3 5,9 8 8 0,6 1,4 100 10 0,6 0,8 1 8,7 8,3 7,9 10 10 120 12 0,6 0,8 1 10,7 10,3 9,9 12 12 140 14 0,6 0,8 1 12,7 12,3 11,9 14 14 160 16 0,6 0,8 1 14,7 14,3 13,9 16 16 180 18 0,6 0,8 1 16,7 16,3 15,9 18 18 200 20 0,6 0,8 1 18,7 18,3 17,9 20 20 220 22 0,6
12、 0,8 1 20,7 20,3 19,9 22 22 250 25 0,6 0,8 1 23,7 23,3 22,9 25 25 280 28 0,6 0,8 1 26,7 26,3 25,9 28 28 320 32 0,6 0,8 1 30,7 30,3 29,9 32 32 aNominal wall thickness of the tube. prEN 3635:2012 (E) 5 4 Tube end geometry See Figure 2 and Table 2. Key 1 Break edges 0,15 max. 2 tube aNominal wall thick
13、ness of the tube Figure 2 Table 2 Diameter code e 060 0,6 080 0,8 100 1 5 Designation EXAMPLE Description block Welded fitting Identity block EN3635-060-080 Number of EN standard Diameter code (see Table 1) Thickness code (see Table 2) prEN 3635:2012 (E) 6 6 Indications on drawings EXAMPLE See Figur
14、e 3. Key 1 Welded fitting EN3635-160-080 Figure 3 prEN 3635:2012 (E) 7 Annex A (informative) Standard evolution form MODIFICATION REASON AND VALIDATION Page 3: drawing Clause 3, internal radius of the welding Before: 0,5 mm After: 0,15 mm Radius back to previous PrEN value Short radius necessary to
15、allow fitting of facing pipe. Page 4: header of second column of Table1: Before: Tube h12 After: Tube outside diameter h12 Precision Page 4: footnote “a” of Table1: Before: Nominal thickness of the tube After: Nominal wall thickness of the tube Precision Page 5: paragraph 4, key “a”: Before: Nominal thickness of the tube After: Nominal wall thickness of the tube Precision Page 5: Table 2: Before: Thickness code After : Diameter code Correction
