ISO-15837-2004.pdf
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1、INTERNATIONAL STANDARD ISO 15837 First edition 2004-04-01 Reference number ISO 15837:2004(E) ISO 2004 Ships and marine technology Gasketed mechanical couplings for use in piping systems Performance specification Navires et technologie maritime Accouplements mcaniques avec joints pour systmes de tuya
2、uteries Spcification des performances ISO 15837:2004(E) ii ISO 2004 All rights reserved PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are lice
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5、to it is found, please inform the Central Secretariat at the address given below. ISO 2004 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without p
6、ermission in writing from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ISO 15837:2004(E) ISO 20
7、04 All rights reserved iii Contents Page 1Scope 1 2Terms and definitions 1 3Classification . 3 4Ordering information . 4 5Materials . 4 6Workmanship, finish and appearance . 4 7Other requirements . 4 8Number of tests and retests for qualification testing . 6 9Specimen preparation and installation 6
8、10Test methods 7 11Inspection . 8 12Product marking 8 13Packaging . 9 Annex A (normative) Tests to be used in the qualification of GMCs . 11 ISO 15837:2004(E) iv ISO 2004 All rights reserved Foreword ISO (the International Organization for Standardization) is a worldwide federation of national stand
9、ards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International orga
10、nizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given
11、in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75
12、% of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 15837 was prepared by Technical Committee ISO/TC 8, Ships
13、and marine technology, Subcommittee SC 3, Piping and machinery. -,-,- INTERNATIONAL STANDARDISO 15837:2004(E) ISO 2004 All rights reserved 1 Ships and marine technology Gasketed mechanical couplings for use in piping systems Performance specification 1Scope This International Standard provides the p
14、erformance characteristics and qualification tests required for gasketed mechanical couplings, including grooved-type mechanical couplings for grooved-end pipe, mechanical restraint couplings for plain-end pipe and mechanical compression couplings for plain-end pipe. These couplings are for use at t
15、emperatures within the recommended temperature range of their respective gaskets. 2Terms and definitions For the purposes of this document, the following terms and definitions apply. 2.1 class differentiates joint characteristics such as rigid, flexible, restrained and unrestrained 2.2 failure any l
16、eakage or joint separation, unless otherwise determined to be due to a pipe or fitting defect 2.3 fitting a device used to change pipe direction, size or adapt to other joining methods NOTEThis device is used with pipe or other fittings to create a working system. Shapes such as elbows, tees, crosse
17、s, reducers and special shapes are used as needed to fulfil system design specifications. 2.4 flexible characteristic of a joint wherein there is available limited angular and axial pipe movement 2.5 gasketed mechanical coupling GMC a device used to join pipe-to-pipe, pipe-to-fitting, or fitting-to-
18、fitting wherein an elastomeric (gasket) is used to seal the joint NOTEA coupling may or may not provide mechanical restraint of the pipe or fitting. 2.6 working pressure grade joint working pressure as established by tests using representative pipe or tube and the gasketed mechanical coupling (GMC)
19、2.7 grooved mechanical coupling (Type 1) a device which consists of two or more housings, closure members such as sets of bolts and nuts or pins, and a pressure-responsive gasket ISO 15837:2004(E) 2 ISO 2004 All rights reserved NOTEIt is used to mechanically join and seal grooved pipe and/or fitting
20、s, forming a joint. See Figure 1. 2.8 grooved mechanical coupling housing structural parts of a grooved mechanical coupling which mechanically fit into pipe or fitting grooves providing mechanical pipe or fitting restraint and enclosure of the gasket 2.9 plain-end mechanical coupling plain-end GMCs
21、consisting of Type II Classes 1, 2 and 3 2.9.1 Type II Classes 1 and 2 device consisting of gasket(s), housing(s), sleeve(s), end rings, threaded fasteners, pipe or fitting anchoring (gripping) features and seal retainers as applicable NOTEThese devices are used to create a seal and restrain plain-e
22、nd pipe or fittings. See Figures 2 and 3. 2.9.2 Type II Class 3 device consisting of gasket(s), housing(s), sleeve, end rings and threaded fasteners as applicable NOTETightening of the fasteners compresses the gasket(s), creating a seal on the outside of the plain-end pipe. See Figure 4. 2.10 joint
23、interface formed between pipe and pipe, pipe and fitting, or fitting and fitting where a GMC is used to seal this interface within a specified working pressure and, where applicable, provide mechanical holding strength 2.11 joint pressure rating working pressure for the joint on the pipe or fitting
24、material and thickness to be used in the actual piping application 2.12 leakage escape of fluid (gaseous or liquid) from any point of the specimen 2.13 penalty run a penalty run is performed with penalty-run specimens when the original test specimen leaks or separates during testing as a result of a
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