1、ASD-STAN STANDARD NORME ASD-STAN ASD-STAN NORM ASD-STAN prEN 4812 Edition P 1 December 2015 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.orgICS: Descriptors: ENGL
2、ISH VERSION Aerospace series Flange couplings Gasket seal with nickel alloy C seal on heat resisting steel plate with 4 fastening holes Inch series Luft- und Raumfahrt Rohrverschraubung mit Flanschen Flachdichtung aus Nickellegierung, mit Stahlarmierung aus hochwarmfestem Stahl mit 4 Befestigungslch
3、ern Inch-Reihe Srie arospatiale Raccordement bride Joint plaque avec joint C en alliage de nickel sur plaque en acier rsistant chaud avec 4 trous de fixation Srie en inches This “Aerospace Series“ Prestandard has been drawn up under the responsibility of ASD-STAN (The AeroSpace and Defence Industrie
4、s 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 of this Prestandard, the technical content shall not be chang
5、ed 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, the ASD-STAN prEN will be submitted as a draft European Standard (prEN) to CEN (European Committee for S
6、tandardization) 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 conflicting with the EN. ASD-STAN Technical Committ
7、ee approves that: “This document is published by ASD-STAN for the needs of the European Aerospace Industry. The use of this standard is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising therefrom, is the sole responsibility of
8、 the user.” ASD-STAN reviews each standard and technical report at least every five years at which time it may be revised, reaffirmed, stabilized or cancelled. ASD-STAN invites you to send your written comments or any suggestions that may arise. All rights reserved. No parts of this publication may
9、be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission of ASD-STAN. Order details: E-mail: salesasd-stan.org Web address: http:/www.asd-stan.org/ Edition approved for pub
10、lication 1stDecember 2015 Comments should be sent within six months after the date of publication to ASD-STAN Mechanical Domain Copyright 2016 ASD-STAN prEN 4812:2015 (E) 2 Contents Page Foreword .2 1 Scope .3 2 Normative references .3 3 Required characteristics 4 4 Designation .6 5 Identification m
11、arking 6 6 Technical specification 6 7 Quality Assurance 6 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
12、 has received approval for Publication. prEN 4812:2015 (E) 3 1 Scope This standard specifies the characteristics of gasket seal with nickel alloy C seal on heat resisting steel, 4 holes, for pipe couplings for inch series aerospace applications. Nominal pressure: Up to 21 000 kPa; depends on the ass
13、ociated tube material and tube wall thickness in the assembly (see EN 4814). Temperature range: -55 C to 600 C. NOTE Assembly in accordance with TR 4815. This part should not be resuse after disassembling. 2 Normative references The following documents, in whole or in part, are normatively reference
14、d 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 2407, Aerospace series Heat resisting nickel base alloy NI-P100-HT Solution
15、 treated and precipitation treated Sheets and strips a 3 mm EN 2424, Aerospace series Marking of aerospace products EN 2516, Aerospace series Passivation of corrosion resisting steels and decontamination of nickel base alloys EN 3480, Aerospace series Steel FE-PA3601 (X6CrNiTi18-10) Air melted Softe
16、ned Plate 6 mm a 50 mm 500 MPa Rm 700 MPa EN 3488, Aerospace series Steel FE-PA3601 (X6CrNiTi18-10) Air melted Softened Sheet and strip a 6 mm 500 MPa Rm 700 MPa EN 4814, Aerospace series Flange couplings, up to 21 000 kPa Technical specification Inch series 1) EN 4816, Aerospace series Flange coupl
17、ings Gasket seal with nickel alloy C seal Technical specification Inch series 1) EN 9100, Quality Management Systems Requirements for Aviation, Space and Defense Organizations ISO 1458, Metallic coatings Electrodeposited coatings of nickel TR 4815, Aerospace series Flange couplings, up to 21 000 kPa
18、 Design standard Inch series 2) 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/) prEN 4812:2015 (E) 4 3 Required characteristics
19、 3.1 Configuration Dimensions Tolerances Masses See Figure 1 and Table 1. Dimensions and tolerances are in millimetres, except otherwise specified. 3.2 Material Plate: EN 3480 or EN 3488 Seal: EN 2407 3.3 Surface treatment Plate: Passivation EN 2516 Seal: ISO 1458 3.4 Assembly C seal shall not disas
20、sembled from the plate after a drop down from at least 200 mm height. prEN 4812:2015 (E) 5 Key 1 3D view 2 Surface geometric tolerance applies to F and R1 3 Marking 4 Hole diameter for the fluid flow equal to S 5 Form not stated are left to the manufacturers discretion with a theorical diameter of 1
21、,57 mm and a thickness of 0,15 mm min. Figure 1 Ramax 3,2 0,3 0,1 Ramax 0,8 prEN 4812:2015 (E) 6 Table 1 Dimensional code a Nominal diameter B C D E F G R1 R2 S Mass c inch mm Theo. Theo. 0,1 Theo. b Theo. 0,05 Theo. min max Theo. 10A .625 15,875 26,36 13,18 5,1 21,21 28,45 1,32 5,56 5,08 8,13 13,5
22、6,2 10B .625 15,875 28,30 14,15 6,6 21,21 31,20 1,32 6,76 5,08 8,13 13,5 8,5 12A .750 19,050 29,36 14,68 5,1 24,38 31,75 1,32 5,56 5,08 8,13 17,0 6,9 12B .750 19,050 30,48 15,24 6,6 24,38 40,23 1,32 6,76 5,08 8,13 17,0 11,0 16A 1.000 25,400 33,32 16,66 5,1 30,58 38,10 1,32 5,56 5,08 8,13 23,1 7,5 16
23、B 1.000 25,400 35,92 17,96 6,6 30,58 46,84 1,32 6,76 6,60 9,91 23,1 13,1 20B 1.250 31,750 42,06 21,03 6,6 37,90 46,84 1,32 6,76 6,60 9,91 28,9 11,5 24B 1.500 38,100 46,02 23,01 6,6 43,94 53,97 1,32 7,14 6,60 9,91 34,9 13,5 28B 1.750 44,450 52,37 26,06 6,6 51,61 60,32 1,32 7,14 6,60 9,91 41,2 14,1 32
24、C 2.000 50,800 60,32 30,17 8,2 61,01 69,85 1,32 7,92 7,87 11,68 46,8 16,8 a This code is composed with the following elements: Nominal diameter given in 16th of inches within 2 digit; Bolt nominal thread diameter A: .1900 in (4,826 mm); B: .2500 in (6,35 mm); C: .3125 in (7,938 mm). b This dimension
25、 is a design reference not directly measured but calculated by substracting average torus diameter value from average external diameter value of the C seal at free state. c Mass quoted in kg/1 000 parts 4 Designation EXAMPLE Description block SEAL, GASKET, 4 HOLES Identity block EN4812-10A Number of
26、 this standard Dimensional code (see Table 1) NOTE If necessary, the code I9005 shall be placed between the description block and the identity block. 5 Identification marking EN 2424, category A, as indicated on Figure 1. Marking shall not be embossed. 6 Technical specification EN 4816 with minimum pressure values for pressurizing tests. 7 Quality Assurance Approval of the manufactures See EN 9100
