19-8_Edtn_2007.pdf

AN AMERICAN NATIO NAL STANDARDSuction Fittingsfor Use in Swimming Pools,Wading Pools,Spas,and Hot TubsASME A112.19.8-2007Revision of ASME/ANSI A112.19.8M-1987(R1996)Copyrighted 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.ASME A112.19.8-2007Revision of ASME/ANSI A112.19.8M-1987(R1996)Suction Fittingsfor Use inSwimming Pools,Wading Pools,Spas,and Hot TubsAN AMERICAN NATIONAL STANDARDThree Park Avenue New York,NY 10016Copyrighted 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.Date of Issuance:March 30,2007The 2007 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 committeeactions to be published as necessary.This Standard will be revised when the Society approves theissuance of a new edition.ASME issues written replies to inquiries concerning interpretations of technical aspects of thisStandard.Interpretations are published on the ASME Web site under the Committee Pages athttp:/cstools.asme.org as they are issued.ASME is the registered trademark of The American Society of Mechanical Engineers.This code or standard was developed under procedures accredited as meeting the criteria 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 an 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 connection 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 assume any such liability.Users of a code or standard are expresslyadvised that determination of the validity of any such 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 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 written permission of the publisher.The American Society of Mechanical EngineersThree Park Avenue,New York,NY 10016-5990Copyright 2007 byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERSAll rights reservedPrinted in U.S.A.Copyrighted 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 Roster.vCorrespondence With the A112 Committee.vi1General.12Fitting Design,Assembly,and Material Requirements.33Physical Testing.54Hair Entrapment.75Body Entrapment.126Finger and Limb Entrapment.147Packaging and Installation Instructions.17Figures1Finger Probe“Edge”.22Field Built Sump.53Test Tank Pull Mechanism.84Test Tank Side View.85Test Tank Top View.96Test Tank Mounting Plate.107Test Tank Baffles.108Anticlastic Mounting Surface(Typical).119Hair Test Diagrams.1210Body Block Element.1311Body Block Element Dimensions.1312Finger Probe Finger and Limb Entrapment Test.1513Finger Probe.1514Finger Probe Dimensions.1615Finger Probe Knuckle Dimensions.16Table1Applicable Body Block Element Calculation of Removal Force.14Mandatory AppendicesITorso Specimen With Rectangle Superposed.19IIFitting Type Requirements.20Nonmandatory AppendixASuction Fitting Test Form.21iiiCopyrighted 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.FOREWORDThe initial work on a standard for suction fittings wasundertaken by a Committee of the International Associa-tion forPlumbing andMechanical Officials(IAPMO).Theiractivityresultedintheir ProductStandardSPS-1forsuctionfittings,which was used as a benchmark for the perform-ance of such devices.At IAPMOs suggestion,the SPS-1standard was offered to ASME for conversion into anational consensus standard.In order to undertake thischallenge,a Task