6-12_Edtn_2009.pdf

AN AMERICAN NATIO NAL STANDARDASME B16.12-2009Revision of ASME B16.12-1998(R2006)Cast Iron Threaded Drainage FittingsCopyright 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 distribution is permitted.Uncontrolled when printed.ASME B16.12-2009Revision of ASME B16.12-1998(R2006)Cast IronThreadedDrainageFittingsAN AMERICAN NATIONAL STANDARDCopyright 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 distribution is permitted.Uncontrolled when printed.Date of Issuance:August 14,2009The next edition of this Standard is scheduled for publication in 2014.There will be no addendaissued to this 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 assumes 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 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 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 Roster.viCorrespondence With the B16 Committee.vii1Scope and General.12Size.13Marking.24Materials.25Dimensions and Tolerances.26Threading.27Ribs.38Coatings.39Face Bevel.3Figures1Identification of Reducing Fittings.22Types of Fittings Tapped to Provide 21 mm/m(0.25 in./ft)Pitch.12Tables1Inspection Limits for Diameter and Width of Band.12Inspection Limits for Center-to-End Dimensions.13Wall Thickness and Threaded End Dimensions.44Center-to-End Dimensions of Elbows.55Dimensions of Tees,Crosses,and Y-Branches.66Dimensions of Y-Branches(Reducing Sizes).77Dimensions of 45-deg Y-Branches.88Dimensions of 45-deg Y-Branches(Reducing Sizes).89Dimensions of Couplings.910Dimensions of Increasers.911Dimensions of Offsets.912Dimensions of Tucker Connections,Roof Connections,and Tucker Y-Branches.1013Dimensions of P-Traps,Bath P-Traps,and Running Traps.11Mandatory AppendicesIReferences.13IIDimensions of Fittings in U.S.Customary Units.14Nonmandatory AppendicesAQuality System Program.23BDimensions of Welded and Seamless Steel Pipe(ASME B36.10M).24iiiCopyright 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 distribution is permitted.Uncontrolled when printed.FOREWORDScrew joint drainage fit