1、Pipe Flanges and Flanged Fittings NPS 1/2 Through NPS 24 Metric/Inch StandardAN AM E R IC AN NAT IO NAL STANDARDASME B16.5-2013(Revision of ASME B16.5-2009)Copyright 2013 by the American Society of Mechanical Engineers.No reproduction may be made of this material without written consent of ASME.cCop
2、yright 2013 by the American Society of Mechanical Engineers.No reproduction may be made of this material without written consent of ASME.cASME B16.5-2013(Revision of ASME B16.5-2009)Pipe Flanges andFlanged FittingsNPS12Through NPS 24Metric/Inch StandardAN AMERICAN NATIONAL STANDARDTwo Park Avenue Ne
3、w York,NY 10016 USACopyright 2013 by the American Society of Mechanical Engineers.No reproduction may be made of this material without written consent of ASME.cDate of Issuance:April 29,2013The next edition of this Standard is scheduled for publication in 2015.ASME issues written replies to inquirie
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12、tten permission of the publisher.The American Society of Mechanical EngineersTwo Park Avenue,New York,NY 10016 5990Copyright 2013 byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERSAll rights reservedPrinted in U.S.A.Copyright 2013 by the American Society of Mechanical Engineers.No reproduction may be ma
13、de of this material without written consent of ASME.cCONTENTSForeword.viCommittee Roster.ixCorrespondence With the B16 Committee.xSummary of Changes.xi1Scope.12PressureTemperature Ratings.23Component Size.34Marking.35Materials.76Dimensions.97Tolerances.138Pressure Testing.14Figures1Bevel for Outside
14、 Thickness.152Bevel for Inside Thickness.153Bevel for Combined Thickness.154Straight Hub Welding Flanges.155Method of Designating Outlets of Reducing Fittings in Specifications.166End Flange Facings and Their Relationship to Flange Thickness andCenter-to-End and End-to-End Dimensions.177Bevel for Wa
15、ll Thicknesses t From 5 mm to 22 mm Inclusive.198Bevel for Wall Thicknesses t Greater Than 22 mm.199Inside Contour for Use With Rectangular Backing Ring.2010Inside Contour for Use With Taper Backing Ring.2011Thread Length for Connection Tapping.2112Socket Welding for Connections.2113Bosses for Conne
16、ctions.2114Butt Welding for Connections.2115Method of Designating Location of Auxiliary Connections WhenSpecified.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.252-1.4PressureTemperature Ratings for Group 1.4 Materia
