www bzfxw com BRITISH STANDARD BS EN 714 1995 BS 2782 11 Method 1123F 1995 Thermoplastics piping systems — Non end load bearing elastomeric sealing ring type joints between pressure pipes and moulded[.]
BRITISH STANDARD Thermoplastics piping systems — Non-end-load-bearing elastomeric sealing ring type joints between pressure pipes and moulded fittings — Test method for leaktightness under internal hydrostatic pressure without end thrust The European Standard EN 714:1994 has the status of a British Standard UDC 621.643.4-036.074:621.643.2-98:62-76:620.165.29 BS EN 714:1995 BS 2782-11: Method 1123F:1995 BS EN 714:1995 Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee PRI/61, Plastics piping systems and components, upon which the following bodies were represented: British Gas plc British Plastics Federation British Plumbing Fittings Manufacturers’ Association British Valve and Actuator Manufacturers’ Association Department of the Environment (British Board of Agrément) Department of the Environment (Building Research Establishment) Department of the Environment (Property and Buildings Directorate) Department of Transport Electricity Association Federation of Civil Engineering Contractors Health and Safety Executive Institute of Building Control Institute of Materials Institution of Civil Engineers Institution of Gas Engineers Institution of Water and Environmental Management National Association of Plumbing, Heating and Mechanical Services Contractors Pipeline Industries Guild Plastics Land Drainage Manufacturers’ Association Society of British Water Industries Water Companies Association Water Services Association of England and Wales The following bodies were also represented in the drafting of the standard, through subcommittees and panels: ERA Technology Ltd Engineering Equipment and Materials Users’ Association This British Standard, having been prepared under the direction of the Sector Board for Materials and Chemicals, was published under the authority of the Standards Board and comes into effect on 15 May 1995 Amendments issued since publication © BSI 11-1999 Amd No The following BSI references relate to the work on this standard: Committee reference PRI/61 Draft for comment 92/41354 DC ISBN 580 23967 Date Comments BS EN 714:1995 Contents Committees responsible National foreword Foreword Scope Principle Apparatus Test piece Procedure Test report Figure — Illustration of method of connection © BSI 11-1999 Page Inside front cover ii 3 3 i BS EN 714:1995 National foreword This British Standard has been prepared by Technical Committee PRI/61 and is the English language version of EN 714:1994 Thermoplastics piping systems — Non-end-load-bearing elastomeric sealing ring type joints between pressure pipes and moulded fittings — Test method for leaktightness under internal hydrostatic pressure without end thrust, published by the European Committee for Standardization (CEN) It is incorporated into BS 2782 Methods of testing plastics — Part 11: Thermoplastics pipes, fittings and valves, as Method 1123F:1995 It is a new method intended for use in conjunction with European Standards under preparation for plastics piping specifications and for any new or revised UK piping standards for which it is considered applicable WARNING This British Standard which is the English language version of EN 714:1994 does not necessarily detail all the precautions necessary to meet the requirements of the Health and Safety at Work etc Act 1974 Attention should be paid to any appropriate safety precautions and the method should be operated only by trained personnel A British Standard does not purport to include all the necessary provisions of a contract Users of British Standards are responsible for their correct application Compliance with a British Standard does not of itself confer immunity from legal obligations Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages to and a back cover This standard has been updated (see copyright date) and may have had amendments incorporated This will be indicated in the amendment table on the inside front cover ii © BSI 11-1999 EUROPEAN STANDARD EN 714 NORME EUROPÉENNE April 1994 EUROPÄISCHE NORM UDC 621.643.4-036.074:621.643.2-98:62-76:620.165.29 Descriptors: Pipelines, pressure pipes, plastics tubes, pipe fittings, thermoplastic resins, joining, sealing rings, rubber, fluid-tightness test, pressure tests, hydrostatic pressure English version Thermoplastics piping systems — Non-end-load-bearing elastomeric sealing ring type joints between pressure pipes and moulded fittings — Test method for leaktightness under internal hydrostatic pressure without end thrust Systèmes de canalisations thermoplastiques — Assemblages bague d’étanchéité en élastomère sans effet de fond entre tubes avec pression et raccords moulés — Méthode d’essai d’étanchéité sous pression hydrostatique interne sans effet de fond Rohrleitungssysteme aus Thermoplasten — Nicht zugfeste Verbindungen mit elastomeren Dichtringen zwischen Druckrohren und Formstücken — Prüfverfahren für die Dichtheit unter hydrostatischen Innendruck ohne Axialbeanspruchung ｗｗｗ．ｂｚｆｘｗ．ｃｏｍ This European Standard was approved by CEN on 1994-04-11 CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member The European Standards exist in three official versions (English, French, German) A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions CEN members are the national standards bodies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom CEN European Committee for Standardization Comité Européen de Normalisation Europäisches Komitee für Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels © 1994 Copyright reserved to CEN members Ref No EN 714:1994 E EN 714:1994 Foreword This standard was prepared by CEN/TC 155, Plastics piping systems and ducting systems This standard is based on the International Standard ISO 3603:1977 Fittings for unplasticized polyvinyl chloride (PVC) for pressure pipes with elastic sealing ring type joints — Pressure test for leakproofness, prepared by the International Organization for Standardization (ISO) It is a modification of ISO 3603:1977 for reasons of applicability to other plastics materials and/or other test conditions and alignment with texts of other standards on test methods The modifications are: — no specific material is mentioned; — test parameters, except those common to all plastics, are omitted; — no material-dependent requirements are given; — editorial changes have been introduced The material-dependent parameters and/or performance requirements are incorporated in the System Standard(s) concerned No existing European Standard is superseded by this standard This standard is one of a series of standards on test methods which support System Standards for plastics piping systems and ducting systems This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by October 1994, and conflicting national standards shall be withdrawn at the latest by October 1994 According to the CEN/CENELEC Internal Regulations, the following countries are bound to implement this European Standard: Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, United Kingdom ｗｗｗ．ｂｚｆｘｗ．ｃｏｍ © BSI 11-1999 EN 714:1994 Scope This European Standard specifies a method for testing the leaktightness, under internal hydrostatic pressure without end thrust, of assemblies between fittings with elastomeric sealing rings and thermoplastics components for pressure piping systems Principle The length(s) of the section(s) of pipe to be connected shall be such that the free length, L, of pipe between sockets and between a socket and the test equipment(s) or terminal seal(s) shall be at least equal to the nominal outside diameter of the pipe with a minimum of 250 mm unless otherwise specified in the referring standard (see Figure 1) The assembly of the joints shall be carried out in accordance with the manufacturer’s instructions A test piece consisting of a pipe and fitting assembly having at least one joint of the type to be tested is exposed at a specified temperature to a specified internal hydrostatic pressure without associated end thrust The leaktightness of the assembled joint in air is checked during the test period, when the pressure is higher than the nominal pressure for which the pipe is rated NOTE It is assumed that the following test parameters are set by the standard making reference to this standard: a) the free length, L, of the pipe in the test assembly (see clause and Figure 1); b) the test temperature, T, in degrees Celsius (see clause 5); c) the test pressure, p (see clause 5) Apparatus 3.1 Pressure source, connected to the test piece, capable of maintaining a specified internal water pressure to an accuracy of ± % 3.2 Compensating device, to prevent longitudinal forces being imposed on the test piece by end thrust induced by internal hydrostatic pressure 3.3 Pressure measuring device, capable of checking conformity of the test pressure to 3.1 and clause Means may be necessary for control of temperature Test piece The test piece shall consist of an assembly of pipe-section(s) and fitting(s) or socketed pipe(s) including at least one joint of the type to be tested Components for the test piece shall not be assembled until at least 24 h after their production The assembly shall comprise the combination, within the applicable tolerances, of the smallest available spigot diameter, the largest available socket diameter in the zone of the sealing ring housing and, if not anchored, a seal of the smallest available cross section © BSI 11-1999 L is the free length of the pipe Figure — Illustration of method of connection ｗｗｗ．ｂｚｆｘｗ．ｃｏｍ WARNING It is necessary to take account of the consequences of failure of the components under pressure and to contain the test piece or apparatus accordingly NOTE Key Procedure Set up the test piece in the test equipment, with seals and supports such that longitudinal stresses will be compensated (see 3.2) Fill the test piece with water at the specified temperature T ± °C Ensure that all air is removed and excluded from the test piece for the remainder of the procedure Secure the test piece to the apparatus Wait at least 20 min, to ensure equalization of temperature Remove any moisture from the outside surface of the test piece Apply pressure at a steady rate so as to achieve the specified hydrostatic test pressure, p [see item c) of the note to clause 2], in (30 ± 5) s, except for testing fittings for pipes of nominal outside diameters greater than 630 mm EN 714:1994 In such cases, achieve the specified hydrostatic test pressure, p, in the shortest time practicable between 30 s and 300 s, depending on the size of the test piece components and capabilities of the pressurizing equipment Record the time taken to achieve the test pressure Maintain the specified temperature, T, within ± °C, and pressure, p, within ± %, while monitoring the apparatus for any indication of a loss of pressure and the test piece for any signs of leakage for a period of at least h or until prior failure as follows: a) terminate the test and record the observations if the pressure cannot be maintained and the losses occurred at or within one pipe diameter of the joint under test; b) repeat the test if the pipe(s) fail(s) at a position further than one diameter from the joint(s) under test Test report The test report shall include the following information: a) a reference to this standard and to the referring standard; b) the identity of the components [e.g fitting(s), pipe(s), seal(s)] comprising the joints under test and their measured dimensions; c) the free length(s), L, of the pipe component(s) of the test piece, in millimetres; d) the test temperature, T, in degrees Celsius; e) the test pressure, p, in bars1); f) the time taken to achieve the test pressure, p, and the time under pressure, t, in minutes; g) a report of any signs of leakage observed or otherwise a statement that the joint(s) did not leak; h) any factors which may have affected the results, such as any incidents or any operating details not specified in this standard; i) the date of test ｗｗｗ．ｂｚｆｘｗ．ｃｏｍ 1) bar = 105 N/m2 © BSI 11-1999 ｗｗｗ．ｂｚｆｘｗ．ｃｏｍ blank BS EN 714:1995 BS 2782-11: Method 1123F:1995 BSI — British Standards Institution BSI 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