CSA B125 5 IAPMO Z600-2011 Flexible water connectors with excess flow shut-off devices (First Edition).pdf

1、CSA B125.5-11/IAPMO Z600-11Flexible water connectors with excess flow shut-off devicesLegal Notice for Harmonized StandardJointly Developed by CSA and IAPMOIntellectual property rights and ownershipAs between Canadian Standards Association (CSA) and International Association of Plumbing and Mechanic

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15、to destroy them immediately. Use of this document constitutes your acceptance of the terms and conditions of this Legal Notice.CSA Standards Update ServiceCSA B125.5-11/IAPMO Z600-11July 2011Title:Flexible water connectors with excess flow shut-off devicesPagination:14 pages (viii preliminary and 6

16、text), each dated July 2011To register for e-mail notification about any updates to this publicationgo to www.ShopCSA.caclick on E-mail Services under MY ACCOUNTclick on CSA Standards Update ServiceThe List ID that you will need to register for updates to this publication is 2421286.If you require a

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18、y Canadian Standards AssociationA not-for-profit private sector organization5060 Spectrum Way, Suite 100Mississauga, Ontario, CanadaL4W 5N61-800-463-6727 416-747-4044Visit the CSA Online Store at www.ShopCSA.caISBN 978-1-55491-504-0 Canadian Standards Association 2011All rights reserved. No part of

19、this publication may be reproduced in any form whatsoever without the prior permission of the publisher.Commitment for AmendmentsThis Standard is issued jointly by the the Canadian Standards Association (CSA) and the International Association of Plumbing and Mechanical Officials (IAPMO). Amendments

20、to this Standard will be made only after processing according to the Standards writing procedures of both CSA and IAPMO.International Association of Plumbing and Mechanical Officials (IAPMO)5001 East Philadelphia StreetOntario, California 91761-2816USA1-909-472-4106IAPMO Standard Store athttps:/publ

21、ications.IAPMO.org/standards/default.aspCopyright 2011 by International Association of Plumbing and Mechanical OfficialsThe 2011 edition of this Standard is being issued with an automatic addenda subscription service. The use of addenda allows revisions made in response to public review comments or

22、committee actions to be published as necessary.July 2011 iiiContents Canadian Standards Association International Association of Plumbing and Mechanical OfficialsFlexible water connectors withexcess flow shut-off devicesCSA Technical Committee on Plumbing Fittings ivIAPMO Main Standards Committee vi

23、Preface viii1Scope12 Reference publications 13 Definitions 24 General requirements 25 Test methods 25.1 Intermittent impulse pressure test 25.1.1 Performance requirement 25.1.2 Procedure 25.2 Shut-off test 25.2.1 Performance requirement 25.2.2 Procedure 35.3 Flow test 35.3.1 Performance requirement

24、35.3.2 Procedure 35.4 Hydrostatic seal test 35.4.1 Performance requirement 35.4.2 Procedure 35.5 Torque test 35.6 Axial load test 35.7 Reset test 35.7.1 Performance requirement 35.7.2 Procedure 46 Markings and instructions 4AnnexesA(informative) Unit conversion and rounding criteria 6Tables1 Flow re

25、quirements, L/min (gpm) 4 Canadian Standards AssociationCSA B125.5-11/IAPMO Z600-11 International Association of Plumbing and Mechanical Officialsiv July 2011CSA Technical Committee on Plumbing FittingsK. Ernst Oakville Stamping (b) provide an explanation of circumstances surrounding the actual fiel

26、d condition; and(c) where possible, phrase the request in such a way that a specific “yes” or “no” answer will address the issue.Committee interpretations are processed in accordance with the CSA Directives and guidelines governing standardization and are published in CSAs periodical Info Update, wh

27、ich is available on the CSA website at http:/standardsactivities.csa.ca.(5) CSA Standards are subject to periodic review, and suggestions for their improvement will be referred to the appropriate committee. To submit a proposal for change to CSA Standards, please send the following information to in

28、quiriescsa.ca and include “Proposal for change” in the subject line:(a) Standard designation (number);(b) relevant clause, table, and/or figure number;(c) wording of the proposed change; and(d) rationale for the change. Canadian Standards Association International Association of Plumbing and Mechani

29、cal OfficialsFlexible water connectors withexcess flow shut-off devicesJuly 2011 1CSA B125.5-11/IAPMO Z600-11Flexible water connectors with excess flow shut-off devices1Scope1.1This Standard specifies test methods and markings for flexible water connectors with excess flow shut-off devices.1.2The de

30、vices covered by this Standard are intended to be used in water supply systems under (a)continuous pressure in accessible locations; or (b) intermittent pressure in recreational vehicles.1.3In this Standard, “shall” is used to express a requirement, i.e., a provision that the user is obliged to sati

31、sfy in order to comply with the standard; “should” is used to express a recommendation or that which is advised but not required; and “may” is used to express an option or that which is permissible within the limits of the standard.Notes accompanying clauses do not include requirements or alternativ

32、e requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.Notes to tables and figures are considered part of the table or figure and may be written as requirements.Annexes are designated normative (mandatory) or informative (nonmanda

33、tory) to define their application.1.4SI units are the units of record in Canada. In this Standard, the inch/pound units are shown in parentheses.The values stated in each measurement system are equivalent in application; however, each system is to be used independently. Combining values from the two

34、 measurement systems can result in non-conformance with this Standard.All references to gallons are to U.S. gallons.For information on the unit conversion criteria used in this Standard, see Annex A.2 Reference publicationsThis Standard refers to the following publications, and where such reference

35、is made, it shall be to the edition listed below, including all amendments published thereto.ASME/CSA (The American Society of Mechanical Engineers/Canadian Standards Association)ASME A112.18.1-2011/CSA B125.1-11Plumbing supply fittiingsASME A112.18.6-2009/CSA B125.6-09Flexible water connectors Cana

36、dian Standards AssociationCSA B125.5-11/IAPMO Z600-11 International Association of Plumbing and Mechanical Officials2 July 20113 DefinitionsExcess flow shut-off device a device that shuts off the supply of water to a plumbing supply fitting or appliance when it detects a flow of water in excess of t

37、he preset flow rate.Note: Water flow through a shut-off device is usually limited to a factory preset flow rate, which is the flow rate necessary to operate the supply fitting or appliance. Any flow through the shut-off device in excess of the preset flow rate will automatically activate the device

38、and shut off the water. Shut-off devices normally reset once normal flow is restored.Flexible water connector (flexible connector) a non-rigid tube or hose with end connections used for connecting a water supply to a fixture, fitting, or appliance.Maximum allowable system flow rate the flow rate of

39、the piping system at the point of discharge from the supply fitting or appliance to which the flexible connector is connected.4 General requirementsIn addition to the requirements of this Standard, flexible connectors with excess flow shut-off devices shall comply with Clauses 4 and 5.3 of ASME A112

40、.18.6/CSA B125.6.5 Test methods5.1 Intermittent impulse pressure test5.1.1 Performance requirementWhen a flexible connector with excess flow shut-off device is tested in accordance with Clause 5.1.2, the shut-off flow rate shall be as specified in Table 1. In addition, the flexible connector with ex

41、cess flow shut-off device shall(a) withstand intermittent impulse pressure not exceeding 1.280 KPa (185 psi); and(b) not leak.5.1.2 ProcedureThe intermittent impulse pressure test shall be conducted as follows:(a)Before testing, determine the specimen shut-off flow rate with the water flow throttled

42、 downstream at a static supply pressure of 550 35 kPa (80 5 psi) by increasing the flow rate until the shut-off device closes.(b) Test the specimen in accordance with Clause 5.2.2 of ASME A112.18.6/CSA B125.6 at the following flow rates:(i) 3.8 1.9 L/min (1.0 0.5 gpm) for flexible connectors for ice

43、 makers; and(ii) 7.6 1.9L/min (2.0 0.5 gpm) for flexible connectors for all other applications.(c) Test the specimen in accordance with Clause 5.2.2 of this Standard every 10 000 cycles and at the end of the 100 000 cycles.(d) Test the specimen in accordance with Clause 5.3.1.3 of ASME A112.18.1/CSA

44、 B125.1.5.2 Shut-off test5.2.1 Performance requirementWhen a flexible connector is tested in accordance with Clause 5.2.2, it shall not leak more than 10 mL/min (0.34 fl oz/min). Canadian Standards Association International Association of Plumbing and Mechanical OfficialsFlexible water connectors wi

45、thexcess flow shut-off devicesJuly 2011 35.2.2 ProcedureThe shut-off test shall be conducted as follows:(a)Install the specimen in accordance with the manufacturers instructions.(b) Apply a static water pressure of 310 35 kPa (45 5 psi) with water at 82 3 C (180 5F) for 1 min.(c) Activate the shut-o

46、ff device of the specimen by increasing the flow rate and allow excess water to drain for 30 s.(d) Place a pan or bucket under the specimen to collect the remaining water for 1 h after the shut-off device has been activated.(e) Measure the amount of water collected during the period specified in Ite

47、m (d).(f) Repeat the procedure using a static water pressure of 550 35 for kPa (80 5 psi).5.3 Flow test5.3.1 Performance requirementWhen a flexible connector is tested in accordance with Clause 5.3.2, the minimum flow rate shall be as specified in Table 1.5.3.2 ProcedureThe flow test shall be conduc

48、ted as follows:(a)Bend the specimen 180 around a 127 mm (5.0 in) mandrel.(b) Measure the flow through the specimen with water flowing at a pressure of 210 35 kPa (30 5 psi).Note: The specimen should be connected to a fitting that will allow at least the minimum flow listed in Table1 at the test pres

49、sure while avoiding activation of the shut-off device.5.4 Hydrostatic seal test5.4.1 Performance requirementWhen a flexible connector is tested in accordance with Clause 5.4.2, it shall not leak more than 20 mL/min (0.68 oz/min).5.4.2 ProcedureThe hydrostatic seal test shall be conducted as follows:(a)Activate the shut-off device of the specimen.(b) Pressurize the inlet of the specimen to 860 35 kPa (125 5 psi) with water at 82 3 C (180 5F).(c) Maintain the pressure for 5 min and collect any water lea