1、ASD-STAN STANDARD NORME ASD-STAN ASD-STAN NORM prEN 4552 Edition P 2 October 2013 PUBLISHED BY THE AEROSPACE AND DEFENCE INDUSTRIES ASSOCIATION OF EUROPE - STANDARDIZATION Rue Montoyer 10 - 1000 Brussels - Tel. 32 2 775 8126 - Fax. 32 2 775 8131 - www.asd-stan.org ICS: 49.080 Supersedes edition P 1
2、of September 2000 and will supersede EN 4552:2003 Descriptors: ENGLISH VERSION Aerospace series Pipe coupling 37, spherical, in heat resisting steel Straight nipples, welded end Inch series Srie arospatiale Systme de raccordement sphrique 37, en acier rsistant chaud Mamelons droits souder Srie inch
3、Luft- und Raumfahrt Rohrverschraubung mit Kugelbuchsen 37, aus hochwarmfestem Stahl Gerade Verschraubungen zum Anschweien Inch-Reihe This “Aerospace Series“ Prestandard has been drawn up under the responsibility of ASD-STAN (The AeroSpace and Defence Industries Association of Europe - Standardizatio
4、n). 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 of this Prestandard, the technical content shall not be changed to an extent that interchangeability
5、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 Standard (prEN) to CEN (European Committee for Standardization) for formal vote and transformation to f
6、ull 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 conflicting with the EN. Edition approved for publication 1 October 2013 Comments should be sent within si
7、x months after the date of publication to ASD-STAN Mechanical Domain Copyright 2013 by ASD-STAN prEN 4552:2013 (E) 2 Contents Page Foreword 2 1 Scope 3 2 Normative references 3 3 Required characteristics .3 3.1 Configuration Dimensions Tolerances Masses .3 3.2 Materials .4 4 Designation 7 5 Marking
8、.7 6 Technical specification .7 Annex A (informative) Standard evolution form 8 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 Process
9、Manual, this standard has received approval for Publication. prEN 4552:2013 (E) 3 1 Scope This standard specifies the characteristics of swivel nuts for inch series pipe couplings, 37, in heat resisting steel, for aerospace applications. Nominal pressure: Class D in accordance with ISO 6771. 2 Norma
10、tive 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 2424, Aerospace series Marking
11、 of aerospace products EN 3468, Aerospace series Steel FE-PA13 Softened 500 Rm 700 MPa Forgings De 100 mm 1)EN 3487, Aerospace series Steel FE-PA3601 (X6CrNiTi18-10) Air melted Softened Bar for machining a or D 250 mm 500 MPa Rm 700 MPa EN 4549, Aerospace series Pipe coupling, in heat resisting stee
12、l or in heat resisting nickel alloy Coupling end, welded Design configuration Inch series EN 4550-1, Aerospace series Pipe coupling, 37 Design configuration Inch series Part 1: Male sealing ends, spherical EN 4560, Aerospace series Pipe coupling 37, spherical, up to 21 000 kPa Inch series Technical
13、specification ISO 3161, Aerospace UNJ threads General requirements and limit dimensions ISO 6771, Aerospace Fluid systems and components Pressure and temperature classifications 3 Required characteristics 3.1 Configuration Dimensions Tolerances Masses See Figures 1 to 2 and Tables 1 to 4. Dimensions
14、 and tolerances are in millimetres. Table 1 Code Locking wire hole option N without locking wire hole Y with 2 locking wire holes 1) Published as ASD-STAN Prestandard at the date of publication of this standard. http:/www.asd-stan.org/ prEN 4552:2013 (E) 4 3.2 Materials EN 3468 with minimum hardness
15、 HB 140 or EN 3487 with minimum hardness HB 140. Threads surface will be achieved by normalmethods of manufacture. Key 1 Style A 2 Section A-A 3 R 2,5 to R 4,1 4 D except dimension B 5 Thread 6 ( E per EN 4550-1) 7 3 positions 7 Marking 9 3 D view Figure 1 Hexagonal larger than thread 0,3 0,1,see EN
16、 4550-1 Ra3,2 prEN 4552:2013 (E) 5 Key 1 Style B otherwise same as style A 2 Section B-B 3 R 0,80 to R 1,80 4 Detail V 5 3 D view Figure 2 Hexagonal smaller than thread prEN 4552:2013 (E) 6 Table 2 Dimensional code aNominal diameter Wall thickness of tube Thread b A B C D E J Style K L Mass c 0,25 0
17、,25 0,05 0,25 min. 0,25 min. max. A03 4,763 0,711 375 0-24UNJ-3A 21,60 11,45 EN4549A003 EN 4550-1-03 8,70 9,50 A ,2,54 5,90 7,20 6,80 B03 0,889 EN4549B003A04 6,350 0,711 437 5-20UNJF-3A 22,80 12,65 EN4549A004 EN 4550-1-04 11,10 12,24 7,50 8,80 9,55 B04 0,889 EN4549B004A05 7,924 0,711 500 0-20UNJF-3A
18、 23,40 13,20 EN4549A005 EN 4550-1-05 12,70 14,02 9,00 10,30 11,80 B05 0,889 EN4549B005A06 9,525 0,711 562 5-18UNJF-3A 25,80 13,10 EN4549A006 EN 4550-1-06 14,30 15,80 5,08 10,60 11,90 16,35 B06 0,889 EN4549B006A08 12,700 0,711 750 0-16UNJF-3A 27,10 14,40 EN4549A008 EN 4550-1-08 15,90 17,63 B 13,80 15
19、,00 24,50 B08 0,889 EN4549B008A10 15,875 0,711 875 0-14UNJF-3A 29,45 16,75 EN4549A010 EN 4550-1-10 19,05 21,23 17,00 18,20 34,50 B10 0,889 EN4549B010A12 19,050 0,711 1.062 5-12UNJ-3A 31,10 18,40 EN4549A012 EN 4550-1-12 20,65 23,06 20,10 21,40 42,70 B12 0,889 EN4549B012A16 25,400 0,711 1.312 5-12UNJ-
20、3A 32,60 19,90 EN4549A016 EN 4550-1-16 27,00 30,25 26,50 27,70 59,50 B16 0,889 EN4549B016aThis code corresponds to: tube wall thickness (A: 0,711 mm; B: 0,889 mm); nominal diameter given in 16thof inches within two digits. bQuoted in inches in accordance with ISO 3161. cMass quoted in kg/1 000 parts
21、. Table 3 (For style B only) Dimensional code aNominal diameter H F T 0,25 0,10 A08 12,700 2,55 15,80 16,75 B08 A10 15,875 3,05 18,90 19,65 B10 A12 19,050 3,30 20,50 24,00 B12 A16 25,400 3,30 26,85 30,35 B16 aThis code corresponds to: tube wall thickness (A: 0,711 mm; B: 0,889 mm); nominal diameter
22、given in 16thof inches within two digits. prEN 4552:2013 (E) 7 Table 4 (When locking wire hole option code is “Y“) Dimensional code a Nominal diameter N P S 0,25 A03 04,775 03,20 1,451,25 B03 03,45 1,55 A04 06,350 04,30 1,45B04 04,55 1,55 A05 07,925 05,20 1,65B05 05,45 1,90 A06 09,525 06,10 1,652,55
23、 B06 06,35 1,90 A08 12,700 07,25 1,65B08 07,50 1,90 A10 15,875 08,65 1,65B10 08,90 1,90 A12 19,050 10,05 1,65B12 10,30 1,90A16 25,400 12,90 1,65 B16 13,40 1,90aThis code corresponds to: tube wall thickness (A: 0,711 mm; B: 0,889 mm); nominal diameter given in 16thof inches within two digits. 4 Desig
24、nation EXAMPLE Description block NIPPLE, STRAIGHT Identity block EN4552A10N Number of this standard Dimensional code (see Tables 2 and 4) Locking wire hole option code (see Table 1) NOTE If necessary, the code I9005 shall be placed between the description block and the identity block. 5 Marking Acco
25、rding to EN 2424, style A and Figure 1. 6 Technical specification According to EN 4560. prEN 4552:2013 (E) 8 Annex A (informative) Standard evolution form MODIFICATION REASON AND VALIDATION Table 4 page 8. Before: Dimensions P A03 was 1,15 B03 was 1,30 A04 was 1,15 B04 was 1,30 A05 was 1,45 B05 was 1,60 After: Dimensions P A03 is 1,45 B03 is 1,55 A04 is 1,45 B04 is 1,55 A05 is 1,65 B05 is 1,90 Accordance with standard EN 4551.
