ISO-15838-2003.pdf

INTERNATIONAL STANDARD ISO 15838 First edition 2003-11-01 Reference number ISO 15838:2003(E) © ISO 2003 Ships and marine technology Fittings for use with gasketed mechanical couplings used in piping applications Performance specification Navires et technologie maritime Raccords pour utilisation avec les accouplements mécaniques avec joints utilisés en tuyauterie Spécification des performances Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/24/2007 20:11:43 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 15838:2003(E) ii© ISO 2003 All rights reserved PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. © ISO 2003 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 permission in writing from either ISO at the address below or ISO's 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 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/24/2007 20:11:43 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 15838:2003(E) © ISO 2003 All rights reserved iii Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards 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 organizations, 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 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 % 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 15838 was prepared by Technical Committee ISO/TC 8, Ships and marine technology, Subcommittee SC 3, Piping and machinery. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/24/2007 20:11:43 MDTNo reproduction or networking permitted without license from IHS -,-,- . iv Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/24/2007 20:11:43 MDTNo reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL STANDARDISO 15838:2003(E) © ISO 2003 All rights reserved 1 Ships and marine technology Fittings for use with gasketed mechanical couplings used in piping applications Performance specification 1Scope This International Standard defines classification, materials, test requirements, inspection requirements, marking and packaging of fittings for use with gasketed mechanical couplings (GMCs) conforming to ISO 15837. 2Normative 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. ISO 15837, Ships and marine technology Gasketed mechanical couplings for use in piping systems Performance specification ASTM F 1548, Standard Specification for the Performance of Fittings for Use with Gasketed Mechanical Couplings Used in Piping Applications 3Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 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, crosses, reducers and special shapes are used as needed to fulfil system design specifications. 3.2 fabricated fitting a fitting constructed by welding together sections of pipe or tube 3.3 grooved end fitting type of fitting or pipe having a groove for use with grooved mechanical couplings (Type I) as defined in ISO 15837 3.4 plain-end fitting type of fitting or pipe end for use with gasketed mechanical couplings (Type II) that are plain end as defined in ISO 15837 3.5 tangent a section of straight pipe or tube integral to, or welded to, the end(s) of the fitting Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/24/2007 20:11:43 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 15838:2003(E) 2© ISO 2003 All rights reserved 3.6 wrought fitting a fitting made by shaping, or shaping and welding 3.7 size dimensions of the piping system or component, primarily nominal diameter () and wall thickness 4Classification Fittings are classified by the following design types: Type I, Grooved end; Type II, Plain end. 5Ordering information Orders for fittings in accordance with this International Standard shall include the following characteristics: quantity; size; description ( elbow, tee, cross, etc.); type (I or II); groove style (consult manufacturer); minimum pressure rating; material (ductile iron, steel, aluminium, copper nickel, copper, etc.); finish (painted, galvanized, bare, plated, etc.); other requirements agreed to between purchaser and fitting manufacturer. 6Materials The materials used for construction of fittings governed by this International Standard shall be as agreed upon by the manufacturer and purchaser, provided that such materials have been used to qualify the joint's performance in accordance with this International Standard. See also ASTM F 1548 for a list of applicable ISO, BSI and ASTM material specifications. 7Design and qualification requirements 7.1Design requirements The design of fittings may be qualified by mathematical analysis in accordance with piping codes agreed to by the manufacturer and purchaser, or by testing. Fittings shall be tested, where required, with gasketed mechanical couplings in accordance with the test requirements of ISO 15837. 7.2Qualification requirements 7.2.1Mathematical analysis A mathematical analysis, where appropriate, shall be performed as required by the governing piping code. Records of the analysis shall be available at the manufacturer's facility for inspection by the purchaser. Dn 90 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/24/2007 20:11:43 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 15838:2003(E) © ISO 2003 All rights reserved 3 7.2.2Test The fittings shall be tested, where appropriate, with gasketed mechanical couplings in accordance with the requirements of ISO 15837. Unless otherwise noted herein, all of the requirements of ISO 15837 apply. Records of successful tests shall be available at the manufacturer's facility for inspection by the purchaser. 7.2.3Qualification Each type, pressure class, and material of fitting offered for sale shall be qualified. Interpolation between qualified sizes is allowed as defined in ISO 15837. Qualification of the fitting requires successful completion of the analysis or required testing. Each fitting design is only qualified for use with the GMC design on which it was tested or analysed. 8Dimensions Fitting dimensions and tolerance shall be as specified by the manufacturer. 9Workmanship, finish and appearance All fitting surfaces shall be free from scale, blisters, fins, seams, laps, burrs and cracks which would affect the suitability for the intended service. 10Inspection 10.1Terms of inspection Inspection of the fittings shall be in accordance with the manufacturer's standard inspection procedure or as agreed upon between the purchaser and the manufacturer or supplier as part of the purchase contract. 10.2Raw material inspection Raw material shall be inspected for compliance with requirements. If necessary, a certificate of compliance from the material supplier shall be obtained. 10.3Quality conformance inspection Fitting samples shall be visually and dimensionally examined to verify conformance to the manufacturer's drawings. 10.4Process control inspection Fittings shall be inspected throughout the entire manufacturing and processing cycle. Methods of inspection shall be in compliance with the manufacturer's quality assurance procedures. 10.5Inspection records The manufacturer shall maintain inspection records. The length of time on file shall be in accordance with the manufacturer's quality assurance procedures. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/24/2007 20:11:43 MDTNo reproduction or networking permitted without license from IHS -,-,- . 4 11Product markings Each fitting shall be marked with the manufacturer's name or trademark, size, and markings traceable to the material and pressure rating. Additional markings, other than those specified, which are part of the manufacturer's standard practice, may also be applied to the fittings. 12Packaging The fitting shall be wrapped, boxed, crated and otherwise protected during shipment and stored in accordance with the manufacturer's standard practice. Care shall be taken to protect the fitting from damage during shipment and storage. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/24/2007 20:11:43 MDTNo reproduction or networking permitted without license from IHS -,-,- . 5 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/24/2007 20:11:43 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 15838:2003(E) ICS 47.020.30 Price based on 4 pages © ISO 2003 All rights reservedCopyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/24/2007 20:11:43 MDTNo reproduction or networking permitted without license from IHS -,-,-