ASD-STAN PREN 4560-2013 Aerospace Series Pipe Coupling 37 Degrees Spherical Up to 21 000 kPa Inch Series Technical Specification (Edition P 2).pdf
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1、ASD-STAN STANDARD NORME ASD-STAN ASD-STAN NORM prEN 4560 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 4560:2003 Descriptors: ENGLISH VERSION Aerospace series Pipe coupling 37, spherical up to 21 000 kPa Inch series Technical specification Srie arospatiale Systme de raccordement sphrique 37, jusqu 21 000 kPa Srie inch Spcification technique Luft- und Raumfahrt
3、Rohrverschraubung mit Kugelbuchsen 37, bis 21 000 kPa Inch-Reihe Technische Lieferbedingungen This “Aerospace Series“ Prestandard has been drawn up under the responsibility of ASD-STAN (The AeroSpace and Defence Industries Association of Europe - Standardization). It is published for the needs of th
4、e 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 is affected, physically or functionally
5、, 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 full European Standard (EN). The CEN nat
6、ional 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 six months after the date of publication
7、to ASD-STAN Mechanical Domain Copyright 2013 by ASD-STAN prEN 4560:2013 (E) 2 Contents Page Foreword 2 1 Scope 3 2 Normative references 3 3 Terms and definitions .4 3.1 Pressure 4 3.2 Coupling and assembling .4 3.3 Surface defects 5 3.4 Quality assurance 5 4 Requirements, inspection and test methods
8、 6 4.1 Test conditions and preparation of specimens for qualification 6 5 Quality assurance 12 5.1 Product qualification .12 5.2 Quality control records .12 5.3 Acceptance conditions .12 5.4 Rejection .13 5.5 Purchasers (users) quality control .13 6 Preparation for delivery 14 6.1 Cleaning 14 6.2 Pr
9、eservation and packaging .15 Annex A (informative) Standard evolution form 16 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 Ma
10、nual, this standard has received approval for Publication. prEN 4560:2013 (E) 3 1 Scope This standard specifies the required characteristics, inspection and test methods, quality assurance and procurement requirements for inch series, pipe coupling, 37, spherical, for temperature ranges from type II
11、 to type V according to ISO 6771 and nominal pressure up to 21 000 kPa. In addition to the requirements of this technical specification, the coupling assemblies shall be qualified in accordance with equipment or component specification requirements. 2 Normative references The following documents, in
12、 whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 2951, Aerospace series Metallic
13、 materials Test method Micrographic determination of content of non-metallic inclusions 1)EN 9133, Aerospace series Quality management systems Qualification procedure for aerospace standard parts EN 10204, Metallic products Types of inspection documents EN ISO 1302, Geometrical product specification
14、 (GPS) Indication of surface texture in technical product documentation (ISO 1302:2002) ISO 2685, Aircraft Environmental test procedure for airborne equipment Resistance to fire in designated fire zones ISO 2859-1, Sampling procedures for inspection by attributes Part 1: Sampling schemes indexed by
15、acceptance quality limit (AQL) for lot-by-Iot inspection (ISO 2859-1:1999) ISO 6771, Aerospace Fluid systems and components Pressure and temperature classifications ISO 6772, Aerospace Fluid systems Impulse testing of hydraulic hose, tubing and fitting assemblies ISO 7137, Aircraft Environmental con
16、ditions and test procedures for airborne equipment ISO 8625-1, Aerospace Fluid systems Vocabulary Part 1: General terms and definitions related to pressure TR 2674, Aerospace series Design and construction of pipelines for fluids in liquid or gaseous condition Rigid lines, installation 2)MIL-L-23699
17、, Lubricating Oil, Aircraft Turbine Engine, Synthetic Base, NATO Code Number O-156 3)1) Published as ASD-STAN Prestandard at the date of publication of this standard. http:/www.asd-stan.org/ 2) Published as ASD-STAN Technical Report at the date of publication of this standard. http:/www.asd-stan.org
18、/ 3) Published by : Department of Defense (DoD), the Pentagon, Washington, D.C. 20301, USA http:/www.defenselink.mil/. prEN 4560:2013 (E) 4 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 Pressure nominal pressure, proof pressure, impulse pre
19、ssure, burst pressure according to Table 1 below. Table 1 Dimensional code Nominal diameter Wall thickness 0,71 mm Wall thickness 0,89 mm Nominal pressure Proof pressure Impulse pressure Burst pressure Nominal pressure Proof pressure Impulse pressure Burst pressure mm bars bars bars bars bars bars b
20、ars bars 03 4,76 210 420 210 840 210 420 210 840 04 6,35 05 7,92 360 720 06 9,52 160 270 540 360 720 08 12,7 105 210 105 420 160 270 540 10 15,87 180 360 105 210 105 420 12 19,05 140 280 180 360 16 25,4 40 105 40 210 140 280 3.2 Coupling and assembling 3.2.1 coupling assembly assembled nut, ferrule
21、and pipe mating with e.g. nipple, union, elbow, see Figure 1 Key 1 Straight union 2 Nut 3 Ferrule Figure 1 Example of coupling assembly prEN 4560:2013 (E) 5 3.2.2 dimensional code corresponds to the nominal diameter given in 16thof inches within two digits 3.2.3 snug moment when positive resistance
22、to rotation is observed during assembling 3.3 Surface defects 3.3.1 surface irregularity nonconformity with general surface appearance, possible defect 3.3.2 crack clean (crystalline) fracture passing through or across the grain boundaries that possibly follows inclusions of foreign elements. Cracks
23、 are normally caused by overstressing the metal during forging or other forming operations, or during heat treatment. Where parts are subject to significant reheating, cracks are usually discoloured by scale. 3.3.3 fold doubling over of metal, which can occur during the forging operation. Folds can
24、occur at or near the intersection of diameter changes and are especially prevalent with non-circular necks, shoulders and heads. 3.3.4 lap fold-like machining defect 3.3.5 seam (1) usually a surface opening or crack resulting from a defect obtained during casting or forging (2) extraneous material,
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