1、Metallic Gaskets for Pipe FlangesRing-Joint,Spiral-Wound,and JacketedAN AMERICAN NATIO NAL STANDARDASME B16.20-2007(Revision of ASME B16.20-1998)Copyright 2008 by the American Society of Mechanical Engineers.No reproduction may be made of this material without written consent of ASME.cCopyrighted ma
2、terial 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 B16.20-2007(Revision of ASME B16.20-1998)Metallic Gasketsfor Pipe FlangesRing-Joint,Spiral-Wound,an
3、dJacketedAN AMERICAN NATIONAL STANDARDCopyright 2008 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 Univer
4、sity User.No further reproduction or distribution is permitted.Uncontrolled when printed.Date of Issuance:May 19,2008The next edition of this Standard is scheduled for publication in 2013.There will be no addendaissued to this edition.ASME issues written replies to inquiries concerning interpretatio
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11、rwise,without the prior written permission of the publisher.The American Society of Mechanical EngineersThree Park Avenue,New York,NY 10016-5990Copyright 2008 byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERSAll rights reservedPrinted in U.S.A.Copyright 2008 by the American Society of Mechanical Engine
12、ers.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.CONTENTS
13、Foreword.ivCommittee Roster.vCorrespondence With the B16 Committee.viImportant Information Concerning Use of Asbestos or Alternative Materials.vii1Scope.12Ring-Joint Gaskets.13Spiral-Wound Gaskets.24Jacketed Gaskets.3Tables1Maximum Hardness for Ring Gaskets.12Ring Gasket Markings.23Type R Ring Gaske
14、t Dimensions and Tolerances.44Pipe Sizes for Type R Ring Gaskets Suitable for Referenced Standards.75Type RX Ring Gasket Dimensions and Tolerances.96Pipe Sizes for Type RX Ring Gaskets Suitable for Referenced Standards.117Type BX Ring Gasket Dimensions and Tolerances.128Pipe Sizes for Type BX Ring G
15、askets Suitable for Referenced Standards.139Dimensions for Spiral-Wound Gaskets Used With ASME B16.5 Flanges.1410Dimensions for Spiral-Wound Gaskets Used With ASME B16.47 Series A Flanges.1611Dimensions for Spiral-Wound Gaskets Used With ASME B16.47 Series B Flanges.1812Inner-Ring Inside Diameters f
16、or Spiral-Wound Gaskets for Use With ASME B16.5Flanges.2013Inner-Ring Inside Diameters for Spiral-Wound Gaskets Used Between ASMEB16.47 Series A Flanges.2114Inner-Ring Inside Diameters for Spiral-Wound Gaskets Used Between ASMEB16.47 Series B Flanges.2215Minimum Pipe Wall Thickness Suitable for Use of Spiral-Wound Gaskets WithInner Rings for ASME B16.5 Flanges.2316Maximum Bore of ASME B16.5 Flanges for Use With Spiral-Wound Gaskets.2417Maximum Bore of ASME B16.47 Series A Flanges for Use WithSpi
