CSA ASME A112 19 5-2011 Flush valves and spuds for water closets urinals and tanks (First Edition Update No 1 May 2012).pdf

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1、ASME A112.19.5-2011/CSA B45.15-11Flush valves and spuds for water closets, urinals, and tanksLegal Notice for Harmonized StandardJointly Developed by ASME and CSAIntellectual property rights and ownershipAs between The American Society of Mechanical Engineers (ASME) and Canadian Standards Associatio

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15、 Use of this document constitutes your acceptance of the terms and conditions of this Legal Notice.Update No. 1ASME A112.19.5-2011/CSA B45.15-11May 2012Note: General Instructions for CSA Standards are now called Updates. Please contact CSA Information Products Sales or visit shop.csa.ca for informat

16、ion about the CSA Standards Update Service.Title: Flush valves and spuds for water closets, urinals, and tanks originally published October 2011The following revisions have been formally approved and are marked by the symbol delta () in the margin on the attached replacement pages:Revised Preface an

17、d Clause 2New NoneDeleted None Update your copy by inserting these revised pages.Keep the pages you remove for reference.J0581QM1ASMEINTENTIONALLY LEFT BLANK The American Society of Mechanical Engineers Canadian Standards Association Flush valves and spuds for water closets, urinals, and tanksMay 20

18、12PrefaceThis is the first edition of ASME A112.19.5/CSA B45.15, Flush valves and spuds for water closets, urinals, and tanks.This Standard replaces ASME A112.19.5-2005, Trim for Water-Closet Bowls, Tanks, and Urinals and the requirements in Clauses 4.18.1, 4.18.3, and 5.8.7 of CSA B125.3-11.This St

19、andard is considered suitable for use with conformity assessment within its stated scope.This Standard was prepared by the ASME/CSA Joint Harmonization Task Group on Plumbing Fixtures, under the jurisdiction of the ASME Standards Committee on Plumbing Materials and Equipment and the CSA Technical Co

20、mmittee on Plumbing Fixtures. The CSA Technical Committee operates under the jurisdiction of the CSA Strategic Steering Committee on Water Management Products, Materials, and Systems. This Standard has been formally approved by the ASME Standards Committee and the CSA Technical Committee. This Stand

21、ard was approved as an American National Standard by the American National Standards Institute on September 1, 2011.October 2011ASME Notes:(1) This standard was developed under procedures accredited as meeting the criteria for American National Standards and it is an American National Standard. The

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26、rpretations of this document issued in accordance with the established ASME procedures and policies, which precludes the issuance of interpretations by individuals.(6) ASME issues written replies to inquiries concerning interpretation of technical aspects of this Standard. All inquiries regarding th

27、is Standard, including requests for interpretations, should be addressed to:Secretary, A112 Standards CommitteeThe American Society of Mechanical EngineersThree Park AvenueNew York, NY 10016-5990A request for interpretation should be clear and unambiguous. The request shouldcite the applicable editi

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30、ved by an interpretation may appeal to the cognizant ASME Committee.Interpretations are published on the ASME Web site under the Committee Pages at http:/cstools.asme.org/ as they are issued.xiii(Replaces p. xiii, October 2011) The American Society of Mechanical EngineersASME A112.19.5-2011/CSA B45.

31、15-11 Canadian Standards AssociationMay 2012CSA Notes:(1) Use of the singular does not exclude the plural (and vice versa) when the sense allows.(2) Although the intended primary application of this Standard is stated in its Scope, it is important to note that it remains the responsibility of the us

32、ers of the Standard to judge its suitability for their particular purpose.(3) This publication was developed by consensus, which is defined by CSA Policy governing standardization Code of good practice for standardization as “substantial agreement. Consensus implies much more than a simple majority,

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35、ossible, 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, which is available on the CSA

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37、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.(6) Attention is drawn to the possibility that some of the elements of this Standard may be the subject of p

38、atent rights. CSA is not to be held responsible for identifying any or all such patent rights. Users of this Standard are expressly advised that determination of the validity of any such patent rights is entirely their own responsibility.(Replaces p. xiv, October 2011)xiv The American Society of Mec

39、hanical Engineers Canadian Standards AssociationFlush valves and spuds for water closets, urinals, and tanksMay 2012ASME A112.19.5-2011/CSA B45.15-11Flush valves and spuds for water closets, urinals, and tanks1 Scope1.1 This Standard covers spuds and flush valves for water closet bowls, tanks, and u

40、rinals.1.2 In this Standard, “shall” is used to express a requirement, i.e., a provision that the user is obliged to satisfy 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 wh

41、ich is permissible within the limits of the standard.Notes accompanying clauses do not include requirements or alternative 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

42、 table or figure and may be written as requirements.Annexes are designated normative (mandatory) or informative (nonmandatory) to define their application.1.3 SI units are the units of record in Canada. In this Standard, the inch/pound units are shown in parentheses.The values stated in each measure

43、ment system are equivalent in application; however, each system is to be used independently. Combining values from the two measurement systems can result in non-conformance with this Standard.All references to gallons are to U.S. gallons.For information on the conversion criteria used in this Standa

44、rd, see Annex A.2 Reference publicationsThis Standard refers to the following publications, and where such reference 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

45、 A112.19.2-2008/CSA B45.1-08Ceramic plumbing fixturesASME (The American Society of Mechanical Engineers)B1.20.1-1983 (R2006)Pipe Threads, General Purpose, InchCSA (Canadian Standards Association)B125.3-11Plumbing fittings1(Replaces p. 1, October 2011) The American Society of Mechanical EngineersASME

46、 A112.19.5-2011/CSA B45.15-11 Canadian Standards AssociationMay 20123 Definitions and abbreviations3.1 DefinitionsThe following definitions shall apply in this Standard:Flush valve a valve located in a flush tank and used to flush a fixture by discharging water into the fixture.Early closure flush v

47、alve a valve in which the flush valve seal is adjustable to control the water level.Note: Usually, early closure flush valves are dependent on either a time delay or the distance that the water level drops to control the level at which the flush valve closes.Flush valve body a fitting that contains

48、a flush valve seat and a means of mounting to a fixtureNote: The means for mounting the body can be threaded or non-threaded, and can be with or without an overflow.Flush valve seal a component of the flush valve that mates against the flush valve seat to prevent leakage when the flush valve is clos

49、ed.Note: Flappers are a type of flush valve seal.Flush valve seat the sealing surface of the flush valve body which, when mated with the flush valve seal, prevents leakage through the flush valve into the fixture.Mounting seal a seal between the flush valve body and the fixture.Spud a fitting used to connect a flushometer valve to a water closet or urinal.Note: Spuds are illustrated in Tables 1 and 2.3.2 AbbreviationsThe following abbreviations shall apply in this Standard:NPS nominal pipe sizeNPSM National Pipe Straight MechanicalPVC