ASD-STAN PREN 6138-2014 Aerospace series Caps protective non-metallic for flared and flareless fitting ends for fluid systems with 3 000 PSI (21 000 kPa) working pressure (Edition .pdf

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1、ASD-STAN STANDARD NORME ASD-STAN ASD-STAN NORM CORRIGENDUM - ISSUE 2: 2014-10-23 prEN 6138 Edition P 1 September 2014 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

2、 ICS: Descriptors: ENGLISH VERSION Aerospace series Caps, protective, non-metallic for flared and flareless fitting ends, for fluid systems with 3 000 PSI (21 000 kPa) working pressure Srie arospatiale Chapeau, protecteur, non mtallique pour raccord 3 000 PSI (21 000 kPa) circuits hydrauliques Luft-

3、 und Raumfahrt Kappe, nicht metallisch zum Schutz fr Endfittinge 3 000 PSI (21 000 kPa) Hydraulik Systeme 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

4、 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 is affected, physically or

5、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 full European Standard (EN).

6、 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 1st September 2014 Comments should be sent within six months after the date

7、 of publication to ASD-STAN Mechanical Domain Copyright 2014 by ASD-STAN prEN 6138:2014 (E) 2 Contents Page Foreword 2 1 Scope 3 2 Normative references 3 3 Requirements . 4 4 Technical requirement 5 5 Designation 6 6 Marking . 6 7 Packaging . 6 8 Example of installation 7 9 Technical specification .

8、 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 Process Manual, this standard has received approval for Publication. prEN 6138:2014 (

9、E) 3 1 Scope This standard specifies the dimensions, tolerances and required characteristics of protective caps to seal fluid ports during transportation and storage in order to prevent: contamination by moisture, fluids, chemicals and particles; spillage inside package or aircraft section; port and

10、 pipe end damages; port and pipe clogging due to plug ingestion. Because of the cleanliness requirements, parts shall only be used once. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dat

11、ed 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 of aerospace products EN 6079, Aerospace series Pipe coupling 24 cone Female fitting ends, flareless type Inch se

12、ries 1) EN 6102, Aerospace series Fluid, hydraulic, phosphate ester-base, fire resistant Technical specification 1) EN 9100, Quality Management Systems Requirements for Aviation, Space and Defence Organizations ISO 2768-1, General tolerances Part 1: Tolerances for linear and angular dimensions witho

13、ut individual tolerance indications ISO 3161, Aerospace UNJ threads General requirements and limit dimensions SAE-AS4059, Aerospace Fluid Power Cleanliness Classification for Hydraulic Fluids 2) SAE-AS4375, Aerospace standard Fitting end, flareless, design standard 2) SAE-AS4395, Fitting End, Flarel

14、ess, Design Standard 2) SAE-AS33514, Fitting End, Standard Dimensions for Flareless Tube Connection and Gasket Seal 2) FED-STD-595C, Colors used in government procurement 1) In preparation at the date of publication of this standard. NOTE Until publication of EN 6079 use SAE-AS4375 and EN 6102 use A

15、S1241 2) Published by: SAE National (US) Society of Automotive Engineers. http:/www.sae.org/ prEN 6138:2014 (E) 4 3 Requirements 3.1 Configuration, dimensions, tolerances and mass The configuration, dimensions, tolerances and mass shall conform with Figure 1 and Table 1. Linear tolerances not specif

16、ied, shall be in accordance with ISO 2768-m. All internal surfaces shall be free of burrs and moulding joints. Unless otherwise specified all radius shall be R = (1,0 0,2) mm. Figure 1 Configuration and dimensions Table 1 Dimensions and mass Dimensions in millimetres Size code a A B C E F G Mass Thr

17、ead per ISO 3161 g 04 .4375-20UNJF 17,0 13,9 10,1 8,6 12 0,9 06 .5625-18UNJF 20,5 17,3 10,3 8,8 15 1,3 08 .7500-16UNJF 25,5 22,1 12,4 10,9 20 2,2 10 .8750-14UNJF 28,5 25,6 13,6 12,1 23 2,7 12 1.0625-12UNJ 33,5 30,6 14,8 13,3 28 3,7 16 1.3125-12UNJ 39,5 37,2 34 4,1 20 1.6250-12UNJ 48,5 45,3 42 6,5 24

18、 1.8750-12UNJ 55,0 51,0 49 8,0 a Size code corresponds to the nominal tube diameter in 1/16 inch. Aera for marking prEN 6138:2014 (E) 5 3.2 Material, surface treatment and colour The material and colour shall be in accordance with Table 2. The caps shall be resistant to phosphate ester hydraulic flu

19、ids according to EN 6102. The surface of the parts shall be free of burrs and moulding joints. Table 2 Material Code Material Density Melt Flow Index (MFI) Colour Polyethylene (HD-PE) 0,940 to 0,970 7,5 to 15,0 Red (e.g. FED-STD-595C No. 11302 or No. 11310) 3.3 Sealing areas Contact surface mates wi

20、th the dimensions and tolerances of the fitting part (see Figure 2). 3.4 Proof pressure 100 kPa (1 bar). 3.5 Temperature range 3.5.1 Storage and transportation temperature 54 C to 85 C. 3.5.2 Installation and removal At room temperature (25 10) C. 3.5.3 Cleanliness Parts shall be in accordance with

21、SAE-AS4059 class 7 or better. 4 Technical requirement 4.1 General For qualification, three specimens per size shall be tested at a temperature of (25 10) C. The requirements given in 3.3 have to be fulfilled. On the sealing area there shall be a consistently good contact between cap and end fitting

22、when hand tightened. After removal of the plugs, chips inside the equipment/tube/hose are not allowed. 4.2 First article inspection For first article inspection the test assembly shall withstand a pressure equal the proof pressure (see 3.4) without leakage, evidence of permanent deformation or other

23、 malfunction, a period of 3 min after pressure stabilization. Six specimens shall be tested at a temperature of (25 10) C. prEN 6138:2014 (E) 6 5 Designation This type of standard shall be designated according to the philosophy of the following example: Description block CAP Identity block EN613808

24、Number of this standard Material code (see Table 2) Size code (see Table 1) 6 Marking The caps shall be legibly and permanently marked per EN 2424 style A with the following: the full standard part designation; manufacturers name, or trademark, or CAGE code 7 Packaging All parts shall be delivered i

25、ndividually in suitable bags, which are marked per EN 2424 style G. The standard parts shall be protected against humidity, embitterment, impact, contamination and other negative influences by suitable approved materials, so that no damage or deterioration will occur under normal transport and stora

26、ge conditions. The packaging materials used shall conform with national health and safety requirements and shall not affect the appearance or quality of the packaged items. Cleanness requirements shall be kept up to package opening. Chlorine free package shall be used. prEN 6138:2014 (E) 7 8 Example

27、 of installation See Figure 2 and Figure 3. Key 1 Sealing surface 2 Fitting end per EN 6079 or SAE-AS33514 Figure 2 Sealing surface for flareless fitting ends and hose ends Key 1 Sealing surface 2 Fitting end per SAE-AS4395 Figure 3 Sealing surface for flared fitting ends 9 Technical specification 9

28、.1 Simple standard part Caps are defined as Simple Standard parts, which do not need a specific technical specification. 9.2 Production lot (batch) A production lot according to this specification consists of parts or assemblies, which shall have the same physical characteristics (dimensions, materi

29、als, manufacturing methods, heat treatment, surface finish, etc.), being manufactured under the same conditions and submitted together for inspection. prEN 6138:2014 (E) 8 9.3 Materials Materials shall conform to the specifications as specified or described in detail in the product standard. Other m

30、aterials not specified or described in the product standard, may be introduced by the manufacturer to ensure compliance with technical requirements. The suitability of materials not specified in the product standard shall be verified by qualification test. Any changes to materials shall be approved

31、by the customer prior to the next delivery. 9.4 Approval of manufacturers The manufacturers quality system shall conform to EN 9100 or equivalent. The purpose of these procedures is to ensure that a manufacturer has a quality system and the capability for continuous manufacture and release of parts

32、complying with the specified quality requirements. The granting of an approval of the manufacturer is a function of the Certification Authorities, or their appointed representative, who is a prime contractor. 9.5 Responsibility for inspection Unless otherwise specified in the contract or purchase or

33、der, the supplier is responsible for the completion of all inspection requirements as specified in this specification. The supplier may use his own or other approved facilities and inspection methods to achieve satisfactorily the inspection requirements as covered by this specification. The customer

34、 reserve the right to perform counter-acceptance tests to ensure performance attains the required characteristics. 9.6 Labelling All packages shall be permanently and legibly marked with the following: the full standard part designation; manufacturers name and address; order or purchase number. 9.7 Unit and transport packages The products shall be packed in unit or transport packages that comply with the customers requirements.