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1、INTERNATIONAL STANDARD IS0 4422-3 First edition 1996-I 2-15 Pipes and fittings made of unplasticized poly(vinyl chloride) (PVC-U) for water SUPPlY - Specifications - Part 3: Fittings and joints Tubes et raccords en poly(chlorure de viny/e) non plastifik (PVC-U pour I adduction d eau - Spkifications
2、- Partie 3: Raccords et assemblages This material is reproduced from IS0 documents under International Organization for Standardization (ISO) Copyright License number IHSIICCIl996. Not for resale. No part of these IS0 documents may be reproduced in any form, electronic retrieval system or otherwise,
3、 except as allowed in the copyright law of the country of use, or with the prior written consent of IS0 (Case postale 56,1211 Geneva 20, Switzerland, Fax +41 22 734 10 79), IHS or the IS0 Licenser s members. Reference number IS0 4422-3:1996(E) Copyright International Organization for Standardization
4、 Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/26/2007 00:09:28 MDTNo reproduction or networking permitted without license from IHS -,-,- IS0 4422-3:1996(E) Foreword IS0 (the International Organization for Standardization) is a worldwide fed
5、eration of national standards bodies (IS.0 member bodies). The work of preparing International Standards is normally carried out through IS0 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 com
6、mittee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. IS0 collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the
7、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. International Standard IS0 4422-3 was prepared by Technical Committee ISO/TC 138, Plastics pipes, fittings and valves
8、for the transport of fluids, Subcommittee SC 2, Plastics pipes and fittings for water supplies. Together with the other parts, this part of IS0 4422 cancels and replaces IS0 4422:1990, which has been technically revised. IS0 4422 consists of the following parts, under the general title Pipes and fit
9、tings made of unplasticized polylvinyl chloride) (PVC-U) for water SUPPlY - Specifications: - Part 7: General - Part 2: Pipes (with or without integral sockets) - Part 3: Fittings and joints - Part 4: Valves and ancillary equipment - Part 5: Fitness for purpose of the system IS0 4422 is one of a ser
10、ies of system standards for plastics piping sys- tems which are being prepared within lSO/TC 138. Each system standard is based on a specific material for a specific application. They conform to a standard multi-part format, each part dealing with a specific aspect of the overall system. 0 IS0 1996
11、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 the publisher. International Organization for Standardization Cas
12、e Postale 56 l CH-1211 Geneve 20 l Switzerland Printed in Switzerland ii Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/26/2007 00:09:28 MDTNo reproduction or networking permitted witho
13、ut license from IHS -,-,- 0 1so IS0 4422-3:1996(E) NOTE 1 At the present time, the reference document for the installation code is I.SO/TR 4191, and this document will ultimately form part 6 of this International Standard. . . . III Copyright International Organization for Standardization Provided b
14、y IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/26/2007 00:09:28 MDTNo reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL STANDARD Q IS0 IS0 4422-3: 1996(E) Pipes and fittings made of unplasticized poly(vinyl chloride) (PV
15、C-U) for water supply - Specifications - Part 3: Fittings and joints 1 Scope This part of IS0 4422 specifies the characteristics and properties of fittings (injection-moulded and post- formed) and joints made of unplasticized poly(vinyl chloride) (PVC-U), to be used for buried water mains and servic
16、es and for water supplies above ground, both inside and outside buildings. The fittings and joints covered by this part of IS0 4422 are intended for the conveyance of cold water under pressure at temperatures up to approxi- mately 20 “C, for general purposes and for the supply of drinking water. Thi
17、s part of IS0 4422 is also appli- cable to water up 10 and including 45 “C (see figure 1 in IS0 4422-2:1996. Fittings made by hot-gas fusion and hot-plate fusion techniques are not covered by this part of IS0 4422. 2 Normative references The following standards contain provisions which, through refe
18、rence in this text, constitute provisions of this part of IS0 4422. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this part of IS0 4422 are encouraged to investigate the possibility of applying the most recent
19、 editions of the standards indicated below. Members of IEC and IS0 maintain registers of currently valid International Standards. IS0 264:1976, Unplasticized polyvinyl chloride IPVC) fittings with plain sockets for pipes under pressure - Laying lengths - Metric series. IS0 580: 1990, Injection-mould
20、ed unplasticized poly(vinyl chloride) (PVC-U) fittings - Oven test - Test method and basic specifications. IS0 727: 1985, Fittings of unplasticized polyvinyl chloride (PVC-U), chlorinated polyvinyl chloride (PVC-C) or actylonitrile/butadiene/styrene (ABSI with plain sockets for pipes under pressure
21、- Dimensions of sockets - Metric series. IS0 1628-2:1988, Plastics - Determination of vis- cosity number and limiting viscosity number - Part 2: Poly(vinyl chloride) resins. IS0 2045:1988, Single sockets for unplasticized poly(vinyl chloride) (PVC-U) and chlorinated polylvinyl chloride) (PVC-C) pres
22、sure pipes with elastic sealing ring type joints - Minimum depths of engagement. IS0 2048:1990, Double-socket fittings for unplasticized poly(vinyl chloride) (PVC-U) pressure pipes with elastic sealing ring type joints - Minimum depths of engagement. IS0 2507-I :1995, Thermoplastics pipes and fittin
23、gs - Vicat softening temperature - Part 1: General test method. 1 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/26/2007 00:09:28 MDTNo reproduction or networking permitted without lice
24、nse from IHS -,-,- IS0 44223:1996(E) 0 IS0 IS0 2507-2: 1995, Thermoplastics pipes and fittings - Vicat softening temperature - Part 2: Test con- ditions for unplasticized polyfvinyl chloride) (PVC-U) or chlorinated poly(vinyl chloride) (PVC-C) pipes and fit- tings and for high impact resistance poly
25、fvinyl chlor- ide) (PVC-HI) pipes. and designation - Overall service (design) coefficient. 3 Definitions For the purposes of this part of IS0 4422, the defi- IS0 2536: 1974, Unplasticized polyvinyl chloride (PVC) pressure pipes and fittings, metric series - Dimen- sions of flanges. nitions given in
26、IS0 4422-l apply. 4 Material IS0 4132:1979, Unplasticized polyvinyl chloride (PVC) and metal adaptor fittings for pipes under pressure - Laying lengths and size of threads - Metric series. 4.1 The material from which fittings are made shall conform to the requirements specified in IS0 4422-l in addi
27、tion to those specified in 4.2 and 4.3. IS0 4422-l :I 996, Pipes and fittings made of unplasticized polyfvinyl chloride) (PVC-U) for water supply - Specifications - Part 1: General. IS0 4422-2:1996, Pipes and fittings made of unplasticized polyfvinyl chloride) (PVC-U) for water supply - Specificatio
28、ns - Part 2: Pipes (with or without integral sockets). IS0 4422-5:-l), Pipes and fittings made of unplasticized polylvinyl chloride) (PVC-U) for water supply - Specifications - Pat-t 5: Fitness for purpose of the system. IS0 4434: 1977, Unplasticized polyvinyl chloride (PVC) adaptor fittings for pip
29、es under pressure - Laying length and size of threads - Metric series. I SO 6455: 1983, Unplasticized polyvinyl chloride (PVC) fittings with elastic sealing ring type joints for pipes under pressure - Dimensions of laying lengths - Metric series. ISO/TR 9080:1992, Thermoplastics pipes for the transp
30、ofl of fluids - Methods of extrapolation of hydrostatic stress rupture data to determine the long-term hydrostatic strength of thermoplastics pipe materials. IS0 9853: 1991, Injection-moulded unplas ticized polyfvinyl chloride) (PVC-U) fittings for pressure pipe systems - Crushing test. 4.2 The fitt
31、ing materials shall be unplasticized poly(vinyl chloride), designated PVC-U. Where the material has an MRS equal to or greater than 25 MPa, determined in accordance with lSO/lR 9080 and IS0 12162, this material shall be designated PVC-U H. 4.3 An injection-moulded test piece in the form of a pipe, w
32、ith an outside diameter d, of not less than 50 mm and a wall thickness of not less than series SlO, nor greater than S6,3, appropriate to the diam- eter of the test piece, when subjected at 60 “C to a hydrostatic pressure test at a calculated induced stress level of IO MPa, shall not fail by leaking
33、 or bursting in less than 1 000 h. 5 General characteristics of fittings 5.1 Appearance When viewed without magnification, the internal and external surfaces of fittings shall be smooth, clean and free from scoring, cavities and other surface de- fects which would prevent conformity with this part o
34、f IS0 4422. The end(s) of fittings made from pipe shall be square to their axis. 5.2 Temperature derating The temperature derating factor for working tempera- tures between 25 “C and 45 “C shall be the same as IS0 12092: -l), Fittings, valves and other piping svs- tern components of b) the fitting m
35、aterial, i.e. PVC-U, and, if applicable, the classification, i.e. PVC-UH; c) the size(s); d) the number IS0 4422; e) the nominal pressure PN. NOTE 4 Other information, such as the pipe series des- ignation, may be added. Copyright International Organization for Standardization Provided by IHS under
36、license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/26/2007 00:09:28 MDTNo reproduction or networking permitted without license from IHS -,-,- IS0 4422-3:1996(E) Q IS0 ICS 83.140; 91.140.60 Descriptors: piping, water supply, plastics products, unplasticized polyvinyl c
37、hloride, pipe fittings, pipe joints, specifications, geometric characteristics, mechanical properties, physical properties, marking. Pnce based on 4 pages Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/26/2007 00:09:28 MDTNo reproduction or networking permitted without license from IHS -,-,-