1、AN AMERICAN NATIO NAL STANDARDASME B16.5-2009(Revision of ASME B16.5-2003)Pipe Flanges andFlanged FittingsNPS 1/2 Through NPS 24 Metric/Inch StandardCopyright 2009 by the American Society of Mechanical Engineers.No reproduction may be made of this material without written consent of ASME.cCopyrighte
2、d 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 B16.5-2009(Revision of ASME B16.5-2003)Pipe Flanges andFlanged FittingsNPS12Through NPS 24Metri
3、c/Inch StandardAN 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
4、University User.No further reproduction or distribution is permitted.Uncontrolled when printed.Date of Issuance:June 30,2009The next edition of this Standard is scheduled for publication in 2012.There will be no addendaissued to this edition.ASME issues written replies to inquiries concerning interp
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11、 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 AMER
12、ICAN 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
13、 on Oct-05-2010 by Stanford University User.No further reproduction or distribution is permitted.Uncontrolled when printed.CONTENTSForeword.viCommittee Roster.ixCorrespondence With the B16 Committee.x1Scope.12PressureTemperature Ratings.23Component Size.34Marking.35Materials.76Dimensions.97Tolerance
14、s.128Pressure Testing.14Figures1Method of Designating Location of Auxiliary Connections WhenSpecified.152Method of Designating Outlets of Reducing Fittings in Specifications.163Thread Length for Connection Tapping.174Socket Welding for Connections.175Butt Welding for Connections.176Bosses for Connec
15、tions.177End Flange Facings and Their Relationship to Flange Thickness andCenter-to-End and End-to-End Dimensions.188Bevel for Wall Thicknesses t From 5 mm to 22 mm Inclusive.199Bevel for Wall Thicknesses t Greater Than 22 mm.2010Inside Contour for Use With Rectangular Backing Ring.2011Inside Contou
16、r for Use With Taper Backing Ring.2112Bevel for Outside Thickness.2113Bevel for Inside Thickness.2114Bevel for Combined Thickness.2215Straight Hub Welding Flanges.22Tables1AList of Material Specifications.41BList of Bolting Specifications Applicable ASTM Specifications.81CFlange Bolting Dimensional Recommendations.122-1.1PressureTemperature Ratings for Group 1.1 Materials.232-1.2PressureTemperature Ratings for Group 1.2 Materials.242-1.3PressureTemperature Ratings for Group 1.3 Materials.252-1.4
