C-11_Edtn_2006.pdf

AN AMERICAN NATIO NAL STANDARDMeasurement ofFluid Flow by Means of Coriolis Mass FlowmetersASME MFC-112006(Revision of ASME MFC-11M2003)Copyrighted 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 MFC-112006(Revision of ASME MFC-11M2003)Measurement ofFluid Flow byMeans ofCoriolis MassFlowmetersAN AMERICAN NATIONAL STANDARDThree Park Avenue New York,NY 10016Copyrighted 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:March 30,2007This Standard will be revised when the Society approves the issuance of a new edition.There willbe no addenda issued 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 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.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 2007 byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERSAll rights reservedPrinted in U.S.A.Copyrighted 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.vCorrespondence With the MFC Committee.vi1Scope.12Terminology,Symbols,References,and Bibliography.13Mass Flow Measurement.64Coriolis Flowmeter Selection and Application Guidelines.95Inspection and Compliance.156Density Measurement of Liquid.157Volume Flow Measurement Under Metering Conditions.178Additional Measurements.199Coriolis Flow Measurement Uncertainty Analysis Procedure.20Figures3.1.1Principle of Operation of a Coriolis Flowmeter.74.1.3-1 Examples of Coriolis Flowmeter Performance and Pressure Loss vs.FlowRate.104.1.3-2 Examples of Coriolis Flowmeter Performance and Pressure Loss vs.FlowRate.104.1.3-3 Examples of Coriolis Flowmeter Performance and Pressure Loss vs.FlowRate.114.1.3-4 Examples of Coriolis Flowmeter Performance vs.Flow Rate.11Tables2.3Symbols.32.4Abbreviations.6Nonmandatory AppendicesAFlow Calibration Techniques.23BSafety Considerations and Secondary Containment of Coriolis Flowmeters.25CCoriolis Flowmeter Sizing Considerations.26iiiCopyrighted 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.FOREWORDCoriolis flowmeters cover a family of devices with varying designs that depend on the Coriolisforce generated by the fluid(liquid or gas)flowing through oscillating tube(s).The primarypurpose of Coriolis flowmeters is to measure mass flow.However,some of these flowmeters alsomeasure liquid density and temperature of the oscillating tube wall.From the measurements,the mass flow of liquid or gas,liquid density,liquid volume flow,and other related quantitiescan be determined.This Standard was approved by the American National Standards Institute(ANSI)on July 13,2006.ivCop