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ASME B16.34 VALVES - FLANED THREADED AND WELDING END 2004

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AN AMERICAN NATIONAL STANDARD (Revision of ASME B16.34-1996) Copyright ASME International Provided by IHS under license with ASME saleNo reproduction or networking permitted without license from IHS --`,,```,-`-`,,`,,`,`,,`--- ASMEB16.34-2004 AN AMERICAN NATIONAL STANDARD (RevisionofASMEB16.34-1996) Three Park Avenue • New York, NY 10016

Text of ASME B16.34 VALVES - FLANED THREADED AND WELDING END 2004

  • A N A M E R I C A N N A T I O N A L S T A N D A R D

    ValvesFlanged, Threaded, and Welding End

    ASME B16.34-2004(Revision of ASME B16.34-1996)

    Copyright ASME International Provided by IHS under license with ASME

    Not for Resale No reproduction or networking permitted without license from IHS

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  • ASME B16.34-2004(Revision of ASME B16.34-1996)

    Valves Flanged,Threaded, andWelding End

    A N A M E R I C A N N A T I O N A L S T A N D A R D

    Three Park Avenue New York, NY 10016

    Copyright ASME International Provided by IHS under license with ASME

    Not for Resale No reproduction or networking permitted without license from IHS

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  • Date of Issuance: September 2, 2005

    The next edition of this Standard is scheduled for publication in 2007. 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 at http://www.asme.org/codes/ 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 for public review and comment that provides an opportunity for additional public input from industry, academia,regulatory agencies, and the public-at-large.

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    items 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.

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    without the prior written permission of the publisher.

    The American Society of Mechanical EngineersThree Park Avenue, New York, NY 10016-5990

    Copyright 2005 byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERS

    All rights reservedPrinted in U.S.A.

    Copyright ASME International Provided by IHS under license with ASME

    Not for Resale No reproduction or networking permitted without license from IHS

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  • CONTENTS

    Foreword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vCommittee Roster . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viiCorrespondence With the B16 Committee . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viiiIntroduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix

    1 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

    2 Pressure-Temperature Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

    3 Nominal Pipe Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

    4 Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

    5 Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

    6 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

    7 Pressure Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

    8 Requirements for Special Class Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

    Figures1 Method of Designating Location of Auxiliary Connections When Specified . . . . . . . . 132 Thread Length for Auxiliary Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143 Socket Welding for Auxiliary Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144 Butt Welding for Auxiliary Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145 Bosses for Auxiliary Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156 Gate Body (Pressure Seal Bonnet) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157 Y Pattern Globe Body (Pressure Seal Bonnet) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168 Angle Body (Pressure Seal Bonnet) Bonnet Same as Y Pattern Globe . . . . . . . . . . . . . . 169 Elbow Down (Pressure Seal Bonnet) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1710 Gate Body (Flanged Bonnet) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1711 Globe Body (Flanged Bonnet) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1812 Butterfly Body . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1813 Plug Body . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1914 Conduit Gate Body (Pressure Seal Bonnet) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1915 Dished Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2016 Flat Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2017 Butterfly Valve Body . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

    Tables1 Material Specification List: Applicable ASTM Specification . . . . . . . . . . . . . . . . . . . . . . . . 222 Pressure-Temperature Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 263 Valve Body Minimum Wall Thickness tm, mm (in.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 914 Minimum Wall Thickness for Socket Welding and Threaded Ends . . . . . . . . . . . . . . . . . 97

    Mandatory AppendicesI Radiography Examination: Procedure and Acceptance Standards . . . . . . . . . . . . . . . . . . 99II Magnetic Particle Examination: Procedure and Acceptance Standards . . . . . . . . . . . . . . 101III Liquid Penetrant Examination: Procedure and Acceptance Standards . . . . . . . . . . . . . . 102IV Ultrasonic Examination: Procedure and Acceptance Standards . . . . . . . . . . . . . . . . . . . . . 103V Requirements for Limited Class Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104VI Basis Equations for Minimum Wall Thickness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107VII Pressure-Temperature Ratings: U.S. Customary Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109VIII Reference Standards and Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172

    iii

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  • Nonmandatory AppendicesA Relationship Between Nominal Pipe Size and Inside Diameter . . . . . . . . . . . . . . . . . . . . 174B Method Used for Establishing Pressure-Temperature Ratings . . . . . . . . . . . . . . . . . . . . . . 176C Quality System Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183

    iv

    Copyright ASME International Provided by IHS under license with ASME

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  • FOREWORD

    In December 1969, American National Standards Committee B16 changed its name from Stan-dardization of Pipe Flanges and Fittings to Standardization of Valves, Fittings, and Gaskets,reflecting American National Standards In