BS ISO 13359-1998 密封管道中传导性液体流量的测量.法兰电磁流量计.全长.pdf
BRITISH STANDARD BS ISO 133591998 Measurement of conductive liquid flow in closed conduits Flanged electromagnetic flowmeters Overall length ICS 17.120.10 Licensed Copy Institute Of Technology Tallaght, Institute of Technology, Mon Oct 29 110815 GMT0000 2007, Uncontrolled Copy, c BSI BS ISO 133591998 This British Standard, having been prepared under the direction of the Sector Board for Materials and Chemicals, was published under the authority of the Standards Board and comes into effect on 15 September 1998 BSI 04-1999 ISBN 0 580 29383 1 National foreword This British Standard reproduces verbatim ISO 133591998 and implements it as the UK national standard. The UK participation in its preparation was entrusted by Technical Committee CPI/30, Measurement of fluid flow in closed conduits, to Subcommittee CPI/30/5, Velocity based s, which has the responsibility to aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests ined; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the ISO title page, page ii, pages 1 and 2, an inside back cover and a back cover. This standard has been updated see copyright date and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Amendments issued since publication Amd. No.DateComments Licensed Copy Institute Of Technology Tallaght, Institute of Technology, Mon Oct 29 110815 GMT0000 2007, Uncontrolled Copy, c BSI BS ISO 133591998 BSI 04-1999i Contents Page National forewordInside front cover Forewordii 1Scope1 2Normative references1 3Definitions and symbols1 4Installation dimensions1 5Designation2 Annex A inative BibliographyInside back cover Figure 1 Definition of L1 Table 1 2 Licensed Copy Institute Of Technology Tallaght, Institute of Technology, Mon Oct 29 110815 GMT0000 2007, Uncontrolled Copy, c BSI ii blank Licensed Copy Institute Of Technology Tallaght, Institute of Technology, Mon Oct 29 110815 GMT0000 2007, Uncontrolled Copy, c BSI Licensed Copy Institute Of Technology Tallaght, Institute of Technology, Mon Oct 29 110815 GMT0000 2007, Uncontrolled Copy, c BSI BS ISO 133591998 ii BSI 04-1999 Foreword ISO the International Organization for Standardization is a worldwide federation of national standards bodies ISO member bodies. The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission IEC on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 of the member bodies casting a vote. International Standard ISO 13359 was prepared by Technical Committe ISO/TC 30, Measurement of fluid flow in closed conduits, Subcommittee SC 5, Velocity-based s. Annex A of this International Standard is for ination only. Descriptors Liquid flow, pipe flow, flow measurement, electromagnetic equipment, flowmeters, dimensions, overall dimensions, length, designation, flange connections. Licensed Copy Institute Of Technology Tallaght, Institute of Technology, Mon Oct 29 110815 GMT0000 2007, Uncontrolled Copy, c BSI BS ISO 133591998 BSI 04-19991 1 Scope This International Standard specifies overall length laylength face to face for flanged electromagnetic flowmeters. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this International Standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and ISO maintain registers of currently valid International Standards. ISO 40061991, Measurement of fluid flow in closed conduits Vocabulary and symbols. ISO 68171992, Measurement of conductive liquid flow in closed conduits using electromagnetic flowmeters. ISO 91041991, Measurement of fluid flow in closed conduits s of uating the perance of electromagnetic flow-meters for liquids. 3 Definitions and symbols For the purposes of this International Standard, the definitions and symbols given in ISO 4006, ISO 6817 and ISO 9104 apply. 4 Installation dimensions 4.1 Meter size Meter size is designated by the nominal diameter DN of the flange. 4.2 Overall length For each meter size designation, there is a corresponding fixed overall length L for definition see Figure 1 and tolerance both as specified in Table 1. The length L includes lining if it covers the flange face but excludes accessories such as gaskets, grounding and protection rings. Figure 1 Definition of L Licensed Copy Institute Of Technology Tallaght, Institute of Technology, Mon Oct 29 110815 GMT0000 2007, Uncontrolled Copy, c BSI BS ISO 133591998 2 BSI 04-1999 Table 1 4.3 Flange connection Preferably flange mating dimensions should comply with ISO 7005-1. The manufacturer shall provide a reasonable clearance between the rear face of the flange and the meter housing for installation and removal. 5 Designation The flowmeter shall be designated by the following ination, in the order given. Meter sizeMeter overall length DNLtolerance mmmm 15 20 25 32 40 200 50 65 80 100250 125 150300 200350 250450 300 500 350550 400600 0– 3– 0– 5 – Licensed Copy Institute Of Technology Tallaght, Institute of Technology, Mon Oct 29 110815 GMT0000 2007, Uncontrolled Copy, c BSI BS ISO 133591998 BSI 04-1999 Annex A inative Bibliography [1] ISO 7005-11992, Metallic flanges Part 1 Steel flanges. 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Licensed Copy Institute Of Technology Tallaght, Institute of Technology, Mon Oct 29 110815 GMT0000 2007, Uncontrolled Copy, c BSI