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18-8_Edtn_2009.pdf

1、AN AMERICAN NATIO NAL STANDARD ASME A112.18.8-2009In-Line Sanitary Waste Valves for Plumbing Drainage SystemsCopyright 2009 by the American Society of Mechanical Engineers.No reproduction may be made of this material without written consent of ASME.cCopyrighted material licensed to Stanford Universi

2、ty by Thomson Scientific(),downloaded on Oct-05-2010 by Stanford University User.No further reproduction or distribution is permitted.Uncontrolled when printed.ASME A112.18.8-2009In-Line Sanitary WasteValves for PlumbingDrainage SystemsAN AMERICAN NATIONAL STANDARDCopyright 2009 by the American Soci

3、ety of Mechanical Engineers.No reproduction may be made of this material without written consent of ASME.cCopyrighted material licensed to Stanford University by Thomson Scientific(),downloaded on Oct-05-2010 by Stanford University User.No further reproduction or distribution is permitted.Uncontroll

4、ed when printed.Date of Issuance:July 17,2009This Standard will be revised when the Society approves the issuance of a new edition.There willbe no addenda or written interpretations of the requirements of this Standard issued to this edition.Periodically certain actions of the ASME A112 Committee ma

5、y be published as Cases.Cases arepublished on the ASME Web site under the Committee Pages at http:/cstools.asme.org as they areissued.ASME is the registered trademark of The American Society of Mechanical Engineers.This code or standard was developed under procedures accredited as meeting the criter

6、ia for American NationalStandards.The Standards Committee that approved the code or standard was balanced to assure that individuals fromcompetent and concerned interests have had an opportunity to participate.The proposed code or standard was madeavailable forpublic review andcomment thatprovides a

7、n opportunityfor additional publicinput from industry,academia,regulatory agencies,and the public-at-large.ASME does not“approve,”“rate,”or“endorse”any item,construction,proprietary device,or activity.ASME does not take any position with respect to the validity of any patent rights asserted in conne

8、ction with anyitems mentioned in this document,and does not undertake to insure anyone utilizing a standard against liability forinfringement of any applicable letters patent,nor assumes any such liability.Users of a code or standard are expresslyadvised that determination of the validity of any suc

9、h patent rights,and the risk of infringement of such rights,isentirely their own responsibility.Participation by federal agency representative(s)or person(s)affiliated with industry is not to be interpreted asgovernment or industry endorsement of this code or standard.ASME accepts responsibility for

10、 only those interpretations of this document issued in accordance with the establishedASME procedures and policies,which precludes the issuance of interpretations by individuals.No part of this document may be reproduced in any form,in an electronic retrieval system or otherwise,without the prior wr

11、itten permission of the publisher.The American Society of Mechanical EngineersThree Park Avenue,New York,NY 10016-5990Copyright 2009 byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERSAll rights reservedPrinted in U.S.A.Copyright 2009 by the American Society of Mechanical Engineers.No reproduction may be

12、 made of this material without written consent of ASME.cCopyrighted material licensed to Stanford University by Thomson Scientific(),downloaded on Oct-05-2010 by Stanford University User.No further reproduction or distribution is permitted.Uncontrolled when printed.CONTENTSForeword.ivCommittee Roste

13、r.vCorrespondence With the A112 Committee.vi1General.12General Requirements.13Testing.24Marking,Identification,and Instructions.6Figures1Typical Cross-Section(for Illustrative Purposes Only).22Waterway Flow-Rate Test Apparatus.33Inversion Recovery Test Apparatus.44Life-Cycle Test Apparatus.6iiiCopyr

14、ight 2009 by the American Society of Mechanical Engineers.No reproduction may be made of this material without written consent of ASME.cCopyrighted material licensed to Stanford University by Thomson Scientific(),downloaded on Oct-05-2010 by Stanford University User.No further reproduction or distri

15、bution is permitted.Uncontrolled when printed.FOREWORDThe initial work on a standard for Self-Sealing Waterless Waste Valves was undertaken bya Committee of the International Association of Plumbing and Mechanical Officials(IAPMO).The results of their activity resulted in their Interim Guide Criteri

16、a IGC 203-2004,which wasused as a benchmark for performance of such devices,which are now known as“SanitaryWaste Valves.”IGC 203-2004 was submitted to the ASME Standards Committee A112,PlumbingMaterials and Equipment,for conversion into an American National Standard.A112 Project Team18.8 was established for the purpose of undertaking this task.The purpose of this Standard is to establish a generally acceptable standard for sanitary wastevalves for installation on tubing.Its purpose is to serve a

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