4132 International Standard (OS1) INTE RNATIONAL ORGANIZATION FOR STANDARDIZATION MEXAYHAPOAHAH OPTAHM3ALMA NO CTAHAAPTM3ALWM-ORGANISATION INTERNATIONALE DE NO RMALISATION Unplasticized polyvinyl chloride (PVC) and metal adaptor fittings for pipes under pressure - Laying lengths and size of threads - Metric series Raccords union mixtes en polychlorure de vinyle (PvC) non plastifie et métal, pour tubes avec pression -- Cotes de montage et dimension des filetages -- Serie metrique First edition -- 1979-07-15 UDC 621.643.4 : 678.743.22 Ref. No. ISO 4132-1979 (E) 0 4132-1979 (E) Descriptors : pipes (tubes), pressure pipes: pipe fttings, unionsr products made with metals, plastic products, unplasticized polyvinyf chloride, connecting dimensions, screw threads, dimensions. Copyright International Organization for Standardization Price based on 5 pages Not for Resale Foreword Jso (the International Organization for Standardization) is a worldwide federation of national Standards is carried out through IsO technical committees. Every member body interested in a subject for which a technical committee has been set up 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. Draft International Standards adopted by the technical committees are circulated to the member bodies for approval before their acceptance as International Standards by the ISO Council. International Standard ISO 4132 was developed by Technical Committee ISO/TC 138, Plastic pipes, fittings and valves for the transport of fluids, and was circulated to the member bodies in January 1978. It has been approved by the member bodies of the following countries : Australia Poland Germany, F. R. Austria Greece Romania Belgium India South Africa, Rep. of Canada Ireland Spain Czechoslovakia Italy Sweden Denmark Mexico Switzeriand Egypt, Arab Rep. of Netherlands Turkey Finland New Zealand United Kingdom France Norway USA The member body of the following country expressed disapproval of the document on technical grounds : Japan @ International Organization for Standardization, 1979 Printed in Switzerland without license from IHS Not for Resale INTERNATIONAL STANDARD ISO 4132-1979 (E) Unplasticized polyvinyl chloride (PVC) and metal adaptor fittings for pipes under pressure - Laying lengths and size of threads - Metric series Scope and field of application the nominal size of the pipe joint thread in accordance with ISO 7/1; This International Standard specifies the series of diameters to be used and the dimensions which are common to all types of the nominal size of the parallel connecting nut thread in unplasticized polyvinyl chloride (PVC) and metal adaptor fit- accordance with IS0 228/1. tings for pipes under pressure, to achieve the connection to ex- Examples : Adaptor union 25 × 3/4 threads. Socket union end and loose nut 25 × 1 1/4 The adaptor fittings have one plain socket/spigot for solvent cement jointing, and other components in metal, but the pressure-tight joint is achieved by the compression of a gasket. Extension to other types should be made by observing the prin- 4 Dimensions ciples laid down in this International Standard. NOTE - The figures illustrating this international Standard have been 4.1 Diameters and lengths arbitrarily chosen without prejudice to the design of the adaptor fit- tings. The inside diameter of the plain socket or the outside diameter of the plain spigot and their lengths shall correspond with the 2 References dimensions stated in ISO 727 or ISO 264. The threaded part of the fitting shall correspond with 'the dimensions stated in Iso 7/1, Pipe threads where pressure-tight joints are made on ISO 7/1 and ISo 228/1. Part 1 :Designation, dimensions and the threads - tolerances. 4.2 Laying lengths ISO/R 49, Malleable cast iron pipe fittings screwed in accor- When assembling a pipe system, a distance between the ends dance with /SO 7/1.1) of