BS EN 1119-2009 Plastics piping systems - Joints for glass-reinforced thermosetting plastics (GRP) pipes and fittings - Test methods for leaktightness and resistance to damage of n.pdf

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1、BS EN 1119:2009ICS 23.040.20; 23.040.60NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDPlastics pipingsystems Jointsfor glass-reinforcedthermosetting plastics(GRP) pipes andfittings Test methodsfor leaktightness andresistance to damageof non-thrust resistantflex

2、ible joints withelastomeric sealingelementsThis British Standardwas published under theauthority of the StandardsPolicy and StrategyCommittee on 30 April2009 BSI 2009ISBN 978 0 580 63429 1Amendments/corrigenda issued since publicationDate CommentsBS EN 1119:2009National forewordThis British Standard

3、 is the UK implementation of EN 1119:2009. Itsupersedes BS EN 1119:1996 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee PRI/88/2, Plastics piping for pressure applications.A list of organizations represented on this committee can be obtained onrequest t

4、o its secretary.This publication does not purport to include all the necessary provisionsof a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunityfrom legal obligations.BS EN 1119:2009EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 1

5、119March 2009ICS 23.040.60 Supersedes EN 1119:1996 English VersionPlastics piping systems - Joints for glass-reinforcedthermosetting plastics (GRP) pipes and fittings - Test methodsfor leaktightness and resistance to damage of non-thrustresistant flexible joints with elastomeric sealing elementsSyst

6、mes de canalisations plastiques - Assemblages pourtubes et raccords en plastique thermodurcissable renforcde verre (PRV) - Mthodes dessai dtanchit et dersistance lendommagement des assemblages flexiblesnon rsistants la pousse avec bagues dtanchit enlastomreKunststoff-Rohrleitungssysteme - Verbindung

7、en fr Rohreund Formstcke aus glasfaserverstrkten duroplastischenKunststoffen (GFK) - Prfverfahren zur Dichtheit undWiderstandsfhigkeit gegen Beschdigung von nichtdruckbestndigen flexiblen Verbindungen mit elastomerenDichtungselementenThis European Standard was approved by CEN on 8 February 2009.CEN

8、members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on applica

9、tion to the CEN Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has t

10、he same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal

11、,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN All rights of exploitation in any form and by any means reserved

12、worldwide for CEN national Members.Ref. No. EN 1119:2009: EBS EN 1119:2009EN 1119:2009 (E) 2 Contents Page Foreword 31 Scope 42 Principle . 43 Apparatus. 54 Test pieces . 84.1 Assembly 84.2 Number 85 Conditioning 86 Test temperature . 87 Procedure. 97.1 General 97.2 Simultaneous angular deflection a

13、nd draw 97.3 Simultaneous draw and misalignment 97.4 Cyclic pressure 107.5 Negative pressure 108 Test report 11BS EN 1119:2009EN 1119:2009 (E) 3 Foreword This document (EN 1119:2009) has been prepared by Technical Committee CEN/TC 155 “Plastics piping systems and ducting systems”, the secretariat of

14、 which is held by NEN. 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 September 2009, and conflicting national standards shall be withdrawn at the latest by September 2009. Attention is drawn to

15、the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 1119:1996. The modifications are: changed title and scope to remove “reduced art

16、iculation” and clarify intent; changed testing sequence from mandatory to suggested; clarified support conditions and requirements. The material-dependent test parameters and/or performance requirements are incorporated in the referring standard. This standard is one of a series of standards on test

17、 methods which support System Standards for plastics piping systems and ducting systems. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republi

18、c, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 1119:2009EN 1119:2009 (E) 4 1 Scope This Europea

19、n Standard specifies test methods for flexible non-thrust resistant socket-and-spigot joints with elastomeric sealing elements for buried and above ground glass-reinforced thermosetting plastics (GRP) pipeline applications. It covers methods of test for the leaktightness and resistance to damage of

20、the joint only, when subject to specified combinations of longitudinal extension (draw), angular movement (angular deflection), compression (misalignment) perpendicular to the pipe axis and internal pressure. This European Standard is applicable to joints for either pressure or non-pressure applicat

21、ions. NOTE The joints tested in accordance with this European Standard are subjected to conditions which measure their ability to function and thereby prove the design of the joint, especially for type test purposes. These test procedures are applicable to joints for pipes and fittings of all nomina

22、l sizes. The tests are suitable for the evaluation of joints intended for applications in which the liquids are conveyed at temperatures specified in the referring standards. 2 Principle A test piece comprising two pieces of pipe jointed together, by incorporation of a socket or inclusion of a doubl

23、e-socket coupler, is subjected to specified combinations of draw, angular deflection and misalignment. In each specified combination the test piece is subjected to a series of test pressures for specified periods of time, including an internal sub-atmospheric test pressure. In addition, joints for p

24、ressure applications are subjected to a specified cyclic pressure test. When under pressure, the joint is monitored for leakage. Between each test condition (see Table 1 and Table 2) the joint is inspected for signs of damage. NOTE It is assumed that the following test parameters are set by the stan

25、dard making reference to this European Standard: a) the nominal size of the components to be connected by the joint (see 4.1); b) the pressure class of the components (see 4.1); c) the total effective length, L, of the test piece (see 4.1); d) the number of test pieces (see 4.2); e) if applicable, t

26、he conditioning to be applied (see Clause 5); f) the test temperature (see Clause 6); g) sequence of testing, if appropriate (see 7.1); h) the joint positions (see Table 1 and Table 2); i) the draw, angular deflection (see 7.2.3) and the force F (see 7.3.5); j) the permissible change in negative pre

27、ssure (see 7.5.4). BS EN 1119:2009EN 1119:2009 (E) 5 3 Apparatus 3.1 End sealing devices, of sizes and type appropriate to the components under test, anchored to take the axial end thrust and permit free longitudinal movement. 3.2 Supports and restraints 3.2.1 Straps or cradles, (100 5) mm wide supp

28、orting an 180 arc of the pipe barrel or of the socket (see Figure 1). The use is as follows: a) support R see Figure 1b) and Figure 2b), positioned at least 500 mm from the spigot end of the pipe at the point of balance (see Figure 1) to provide support during testing with misalignment; cradles shal

29、l be provided close to the ends of the pipe during testing with angular deflection and draw see Figure 1a) and Figure 2a); BS EN 1119:2009EN 1119:2009 (E) 6 Key 1 socket (or double socket coupler) 2 supports a) Arrangement for angular deflection and draw Dimensions in millimetres Key 1 additional fo

30、rce F = 20 DN 2 straps or cradles 3 supports 4 support R b) Arrangement for misalignment and draw Figure 1 Test arrangement before testing (see 3.2.1) BS EN 1119:2009EN 1119:2009 (E) 7 Key 1 rig 4 angular deflection 2 draw 5 total draw 3 end trust carried by rig 6 supports a) Joint position for angu

31、lar deflection and draw Key 1 rig 5 straps or cradles 2 total draw 6 supports 3 force F 7 support R4 end trust carried by rig b) Joint position for misalignment and draw Figure 2 Joint positions during testing for arrangements shown in Figure 1 (see 3.2.1) NOTE Figures 1 and 2 show the loading on th

32、e test assembly applied in a vertical plane. This is only for purposes of illustration and the loading and supports can be in any orientation. b) a cradle, to support the socket on a fixed base, as required for misalignment testing (see 7.3); c) a strap or cradle, positioned adjacent to the end of t

33、he joint being tested see Figure 1b) and Figure 2b), through which the force F necessary for misalignment testing (see 7.3) can be applied; BS EN 1119:2009EN 1119:2009 (E) 8 d) supports, for the pipe components of the test piece (see 4.1 and Figures 1 and 2). These can be used to apply angular defle

34、ction see 7.2 and Figure 2a). They shall allow misalignment to occur see 7.3, 7.4, 7.5 and Figure 2b). The straps or cradles shall not have a detrimental effect on the test piece, e.g. point loads. 3.2.2 Longitudinal supports, capable of supporting the end thrust induced by the internal pressure but

35、 which shall not otherwise support the joint (see Figure 2). 3.2.3 Special supports, if necessary to prevent buckling of the pipe barrel of low stiffness pipe during negative pressure testing. 3.2.4 Special restraints, to provide support for the test assembly to prevent uncontrolled movements, parti

36、cularly when testing at high pressures. Such supports shall be positioned in a manner so as to not influence the test being conducted and shall not induce point loads. 3.3 Means for applying the required force (see Clause 7) and means for measurement of the applied force to an accuracy of 5 %. 3.4 S

37、ource of hydrostatic pressure, capable of applying the required pressures including, as necessary, pressure cycling controls (see Table 1). 3.5 Vacuum pump, capable of applying the required negative pressure (see 7.5.3 and Table 1). 3.6 Pressure gauges, capable of measuring the positive and negative

38、 pressures at the top of the pipe to an accuracy of 2 %. 4 Test pieces 4.1 Assembly The test piece shall comprise an assembly of two pieces of pipe of the same nominal size and pressure class, as specified in the referring standard, jointed by the socket/spigot, or double-socket, joint to be tested.

39、 In some cases it can be desired to test a transition coupling capable of joining two different nominal pipe sizes. In such a case both sides of the transition coupling shall satisfy the test requirements. The total effective length, L, (see Figure 1a) of the test piece shall be not less than that s

40、pecified in the referring standard. The joint under test shall be assembled in accordance with the manufacturers recommendations. 4.2 Number The number of test pieces shall be as specified in the referring standard. 5 Conditioning Unless otherwise specified by the referring standard, the test piece

41、need not be conditioned. 6 Test temperature Conduct the tests at the temperature specified in the referring standard. BS EN 1119:2009EN 1119:2009 (E) 9 7 Procedure 7.1 General Subject a test piece (see 4.1) to the tests specified in the referring standard and as given in Table 1 and Table 2 and in 7

42、.2, 7.3, 7.4 and 7.5. Each reference to hydrostatic pressure specifies an internal pressure, relative to atmospheric pressure, expressed as multiples of the nominal pressure, PN, that is relevant to the joint under test. If a test is interrupted, record the fact in the test report and repeat the par

43、ticular test before carrying on to the next in the series of tests. Failure at the end sealing devices shall not constitute failure of the joint. If the test conditions are invalidated thereby, repeat the particular test thus affected, after replacing the end sealing device as necessary. The sequenc

44、e of testing as given in 7.2, 7.3, 7.4 and 7.5 and in Table 1 and Table 2 is typical but the tests may be conducted in any sequence. WARNING It is necessary to take account of the consequences of failure of the components under pressure and/or, vacuum and to contain the test piece or apparatus accor

45、dingly. Care should be taken to provide suitable protection from flying objects resulting from catastrophic failure or movement of the test assembly. Any National Health and Safety standards shall be satisfied. 7.2 Simultaneous angular deflection and draw 7.2.1 Assemble the test arrangement as shown

46、 in Figure 1a). 7.2.2 Connect the test piece (see 4.1) to the source of hydrostatic pressure (see 3.4). 7.2.3 Apply the draw plus the angular deflection, as specified in the referring standard, to obtain the total draw as shown in Figure 2a). 7.2.4 Fill the test piece with water and vent to remove a

47、ny air. 7.2.5 Apply and maintain for at least 15 min the initial pressure specified in Table 1 or Table 2, as applicable. Inspect the joint for signs of leakage or damage. If neither are present, continue in accordance with 7.2.6. Otherwise depressurize the test piece and record the observations in

48、accordance with Clause 8. 7.2.6 Apply the positive static pressure specified in Table 1 or Table 2, as applicable, for the time specified. 7.2.7 Inspect the joint for signs of leakage or damage and then depressurize. If there are no signs of leakage or damage, continue in accordance with 7.3. Otherw

49、ise record the observations in accordance with Clause 8. 7.3 Simultaneous draw and misalignment 7.3.1 Assemble the test arrangement as shown in Figure 1b), using supports (see 3.2) and straps or cradles (see 3.2.1) as appropriate and reconnect in accordance with 7.2.2, if necessary. 7.3.2 Apply the draw conditions specified in the referring standard. 7.3.3 Fill the test piece with water and vent to remove any air. 7.3.4 Apply the initial pressure speci