BS ISO 9393-1-2004 工业用热塑性阀门.压力试验方法和要求.第1部分 总则.pdf

BRITISH STANDARD BS ISO 9393-12004 Thermoplastics valves for industrial applications Pressure test s and requirements Part 1 General ICS 23.060.01; 83.140.30 BS ISO 9393-12004 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 13 July 2004 BSI 13 July 2004 ISBN 0 580 44041 9 National foreword This British Standard reproduces verbatim ISO 9393-12004 and implements it as the UK national standard. The UK participation in its preparation was entrusted by Technical Committee PRI/88, Plastic piping systems, to Subcommittee PRI/88/2/Panel 4, Industrial and valves, which has the responsibility to A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests ined; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the ISO title page, pages ii to iv, pages 1 to 7 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments 标准分享网 w w w .b z f x w .c o m 免费下载 w w w . b z f x w . c o m Reference number ISO 9393-12004E OSI 4002 INTERNATIONAL STANDARD ISO 9393-1 Second edition 2004-07-01 Thermoplastics valves for industrial applications Pressure test s and requirements Part 1 General Robinets en matires thermoplastiques pour les applications industrielles Mthodes dessai de pression et exigences Partie 1 Gnralits BS ISO 9393−12004 w w w . b z f x w . c o m ISO 9393-12004E DPlcsid Fremia ihTs PDF file may ctnoian emdebt dedyfepcaes. 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ISO 4002 All irthgs erse.devr lnUeto sswrehise specified, on trap fo this lbupictaion maeb y cudorperro de tuilizi den yna ro na ybm ynae,s lecetrinoc ro mecinahcal, inclidung tohpcoiypodna gn micrfoilm, wittuoh repmissii non writign from ietI rehSa Ot tsserdda eh ebolw or ISOs memreb i ydobn the cnuotrfo y ttseuqer ehe.r ISO cirypothg fofice saCe tsopale 65 eneG 1121-HC 02 av leT. 4 10 947 22 1 11 xaF0 947 22 14 9 74 E-mail coirypthgiso.o gr We bwww.is.o gro Pulbisdehi n Switlrez dna ii ISO– 4002 Allr ithgsr esedevr BS ISO 9393−12004 标准分享网 w w w .b z f x w .c o m 免费下载 w w w . b z f x w . c o m IS-3939 O14002E I SO – 4002 All irthgs ersedevr iii Contents Page Foreword............................................................................................................................................................iv 1 Scope......................................................................................................................................................1 2 Normative references ...........................................................................................................................1 3 Terms and definitions...........................................................................................................................1 4 Classification of pressure tests...........................................................................................................2 5 Test specimens .....................................................................................................................................2 5.1 Test specimens for materials tests.....................................................................................................2 5.2 Test specimens for shell tests.............................................................................................................3 5.3 Test specimens for long-term behaviour of a complete valve.........................................................3 5.4 Test specimens for seat and packing tests........................................................................................3 5.5 Conditioning..........................................................................................................................................3 6 Test apparatus.......................................................................................................................................4 7 Procedure...............................................................................................................................................4 7.1 Materials test .........................................................................................................................................4 7.2 Shell test ................................................................................................................................................4 7.3 Long-term behaviour test of complete valves ...................................................................................5 7.4 Seat and packing test...........................................................................................................................5 8 Interpretation of results........................................................................................................................6 8.1 Materials tests .......................................................................................................................................6 8.2 Shell tests ..............................................................................................................................................6 8.3 Long-term behaviour tests of complete valves .................................................................................6 8.4 Seat and packing tests.........................................................................................................................7 9 Test report..............................................................................................................................................7 BS ISO 9393−12004 w w w . b z f x w . c o m IS-3939 O14002E iv I SO – 4002 All irthgs ersedevr 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 9393-1 was prepared by Technical Committee ISO/TC 138, Plastics pipes, fittings and valves for the transport of fluids, Subcommittee SC 7, Valves and auxiliary equipment of plastics materials. This second edition cancels and replaces the first edition ISO 9393-11994, which has been technically revised. ISO 9393 consists of the following parts, under the general title Thermoplastics valves for industrial applications Pressure test s and requirements  Part 1 General  Part 2 Test conditions and basic requirements BS ISO 9393−12004 标准分享网 w w w .b z f x w .c o m 免费下载 w w w . b z f x w . c o m INTENRATIONAL TSANDADR IS-3939 O14002E I SO – 4002 All irthgs ersedevr 1 Thermoplastics valves for industrial applications Pressure test s and requirements Part 1 General 1 Scope This part of ISO 9393 specifies the test s for the resistance to internal pressure and the leaktightness of thermoplastics valves for use in industrial applications with cold water or with industrial fluids, but excluding gas applications covered by thermoplastics-valve product standards. Part 2 of this International Standard specifies the test conditions and requirements. 2 Normative 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 1167-1, Thermoplastics pipes, fittings and assemblies for the conveyance of fluids Determination of the resistance to internal pressure Part 1 General ISO 109311, Plastics piping systems for industrial applications Polyvinylidene fluoride PVDF Specifications for components and the system ISO 154932003, Plastics piping systems for industrial applications Acrylonitrile-butadiene-styrene ABS, unplasticized polyvinyl chloride PVC-U and chlorinated polyvinyl chloride PVC-C Specifications for components and the system Metric series ISO 154942003, Plastics piping systems for industrial applications Polybutene PB, polyethylene PE and polypropylene PP Specifications for components and the system Metric series 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 nominal pressure PN alphanumerical designation of pressure, used for reference purposes, which is related to the mechanical strength of the valve NOTE Usually it corresponds to the maximum allowable pressure of water at 20 C, in bars, for which the valve is designed. 1 To be published. Revision of ISO 10931-11997, ISO 10931-21997, ISO 10931-31996, ISO 10931-41997 and ISO 10931-51998 BS ISO 9393−12004 w w w . b z f x w . c o m ISO 9393-12004E 2 I SO – 4002 All irthgs ersedevr 3.2 test pressure internal pressure to which a valve is subjected during a test NOTE It is usually expressed in bars 1 bar 0,1 MPa. 3.3 closing torque torque required to close a valve to full tightness at the maximum allowable pressure NOTE Closing torque is usually expressed in newton metres. 3.4 materials test test intended to determine the long-term behaviour, under internal hydrostatic pressure, of thermoplastics materials in the of injection-moulded pipe 3.5 shell test test intended to check the design strength of a valve shell, under internal hydrostatic pressure, against known hydrostatic curves 3.6 long-term behaviour test of a complete valve test intended to determine the pressure-resistance capability of a complete valve assembly 3.7 seat and packing test test on a valve to determine  the leaktightness of the valve seat when the valve is closed in one direction for unidirectional valves, and in each of the directions for bi- or multidirectional valves;  the leakproofness of the complete valve assembly when the valve is open 4 Classification of pressure tests There are four categories of valve pressure test, as follows a Tests intended to establish the long-term internal-pressure resistance of the thermoplastics materials from which the valve components were manufactured materials tests. b Tests intended to verify the perance of the pressure-sustaining components of the valve shell tests. c Tests intended to verify that the design of the valve and its connections does not adversely affect the long-term perance of the valve long-term behaviour tests of complete valves. d Tests intended to verify the leaktightness of the completely assembled valve seat and packing tests. 5 Test specimens 5.1 Test specimens for materials tests Test specimens shall be prepared in accordance with Clause 5 of ISO 154932003, ISO 154942003 or ISO 10931, as applicable for the particular material concerned. BS ISO 9393−12004 标准分享网 w w w .b z f x w .c o m 免费下载 w w w . b z f x w . c o m IS-3939 O14002E I SO – 4002 All irthgs ersedevr 3 For connection of the test specimens to the test apparatus and for other features, see ISO 1167-1. 5.2 Test specimens for shell tests For component pressure testing on a valve body shell test, ISO 1167-1 can be used. 5.3 Test specimens for long-term behaviour of a complete valve Test specimens for long-term behaviour testing of a complete valve shall comprise a complete valve with all connecting elements assembled in accordance with the valve manufacturers instructions, as follows a Valves with flanges or unions Test specimens shall be connected by means of flanges or unions to the test apparatus. b Valves with threaded ends male and/or female Test specimens shall be connected by means of threaded fittings to the test apparatus. c Valves with ends for fusion or solvent-cement jointing Test specimens shall consist of a valve jointed by fusion or solvent-cementing to one or more thermoplastics-pipe sections. The free length of the pipe section connected to the valve shall be at least equal to the outside diameter of the pipe. The pipe shall be cut