ISO-13460-1998.pdf
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1、A Reference number ISO 13460:1998(E) INTERNATIONAL STANDARD ISO 13460 First edition 1998-12-01 Agricultural irrigation equipment Plastics saddles for polyethylene pressure pipes Matriel agricole dirrigation Selles de drivation en matire plastique pour le raccordement de tuyau en polythylne utilis so
2、us pression Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/22/2007 20:14:03 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 13460:1998(E) ISO 1998 All righ
3、ts 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 the publisher. International Organization for Standardization Case postal
4、e 56 CH-1211 Genve 20 Switzerland Internetisoiso.ch Printed in Switzerland ii 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 IS
5、O 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 c
6、losely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. 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
7、 75 % of the member bodies casting a vote. International Standard ISO 13460 was prepared by Technical Committee ISO/TC 23, Tractors and machinery for agriculture and forestry, Subcommittee SC 18, Irrigation and drainage equipment and systems. Annex A of this International Standard is for information
8、 only. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/22/2007 20:14:03 MDTNo reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL STANDARD ISOISO 13460:1998
9、(E) 1 Agricultural irrigation equipment Plastics saddles for polyethylene pressure pipes 1 Scope This International Standard specifies the required properties and test methods for plastics saddles for assembly on polyethylene (hereinafter, “PE”) pressure pipes used in above-ground and underground ir
10、rigation systems conveying water at temperatures not exceeding 45 C. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this International Standard. At the time of publication, the editions indicated were valid. All stand
11、ards are subject to revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and ISO maintain registers of currently valid International Standards. ISO
12、7-1:1994, Pipe threads where pressure-tight joints are made on the threads Part 1: Dimensions, tolerances and designation. ISO 1167:1996, Thermoplastics pipes for the conveyance of fluids Resistance to internal pressure Test method. ISO 2859-1:1), Sampling procedures for inspection by attributes Par
13、t 1: Sampling plans indexed by acceptable quality level (AQL) for lot-by-lot inspection. ISO 3459:1976, Polyethylene (PE) pressure pipes Joints assembled with mechanical fittings Internal under- pressure test method and requirements. ISO 4059:1978, Polyethylene (PE) pipes Pressure drop in mechanical
14、 pipe-jointing systems Method of test and requirements. ISO 4427:1996, Polyethylene (PE) pipes for water supply Specifications. ISO 8779:1992, Polyethylene (PE) pipes for irrigation laterals Specifications. ISO 9625:1993, Mechanical joint fittings for use with polyethylene pressure pipes for irrigat
15、ion purposes. ISO 12162:1995, Thermoplastics materials for pipes and fittings for pressure applications Classification and designation Overall service (design) coefficient. 1) To be published. (Revision of ISO 2859-1:1989) Copyright International Organization for Standardization Provided by IHS unde
16、r license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/22/2007 20:14:03 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 13460:1998(E) ISO 2 3 Definitions 3.1 saddle fitting used to assemble a branch outlet to a pipe through a boring in the
17、wall of the pipe See figure 1. 3.2 branch outlet outlet of a saddle the axis of which is perpendicular to the axis of the pipe on which the saddle is installed See figure 1. 3.3 nominal size numerical designation used to refer to the size of a saddle which is identical to the nominal diameter of the
18、 pipe on which it is intended for assembly 3.4 nominal pressure PN pressure used to classify a saddle which is identical to the nominal pressure of the pipe on which it is intended for assembly Without protrusion into the pipe With protrusion into the pipe Figure 1 Examples of plastics saddles 4 Mat
19、erial The metal parts of the saddle shall be manufactured from corrosion-resistant materials. All parts of the saddle coming in contact with water shall be resistant to agricultural chemicals used in irrigation, such as fertilizer solutions, plant protection materials and fluids used for removal of
20、blockages in emitters and emitting pipe systems. Plastics parts of the saddle that are exposed to ultraviolet radiation under the working conditions in which the saddle operates shall be resistant to ultraviolet radiation. Plastics parts that enclose waterways shall be opaque or shall be provided wi
21、th an opaque cover. 5 Workmanship and appearance The saddle shall be free of burrs or other features likely to damage the pipe or present a safety hazard during installation. The bore of the saddle outlet shall be free of irregularities which may restrict the water flow. Copyright International Orga
22、nization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/22/2007 20:14:03 MDTNo reproduction or networking permitted without license from IHS -,-,- ISOISO 13460:1998(E) 3 The saddle shall be designed so as to cause minimum
23、interference to the flow of water in the pipe on which it is assembled. The internal and external surfaces of the saddle shall be clean and free of grooves, pinholes, voids or other features likely to affect the performance and service of the system. The saddle shall be manufactured of such diameter
24、 and within such tolerances as will permit its use with PE pipes in accordance with ISO 8779 and ISO 4427. The branch outlet shall have a threaded outlet or an outlet suitable for connecting a PE pipe in accordance with ISO 9625. 6 Threads The threaded branch outlet of a saddle shall conform to ISO
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