ANSI AGA B109.1-2000 Diaphragm Type Gas Displacement Meters (under 500 Cubic Feet Per Hour Capacity) (Fourth Edition XQ0008).pdf

1、ANSI B109.1 Approved April 13,2000 DIAPHRAGM-TYPE GAS DISPLACEMENT METERS (Under 500 Cubit Feet Per Hour Capacity) Secretariat 5 AGA - American Gas Association 400 North Capitol Street, NW, 4h Floor Washington, DC 20001 U.S.A. Catalog No. XQOOOS June 2000 STD-AGA BLOS-1-ENGL 2000 W 7008836 OOOL307 T

2、54 m First Edition-1973 Second Edition-1 986 Third Edition-1992 Fourth Edition-2000 American Gas Association 400 North Capitol St., NW, 4h Floor Washington, DC 20001 U.S.A. Catalog No. XQOS Approved April 13,2000 AMERICAN NATIONAL STANDARDS INSTITUTE, INC. Copyright O 2000, American Gas Association

3、All rights reserved CONTENTS CONTENTS . i DISCLAIMER AND COPYRIGHT ui PREFACE . . “ . . . iv GAS DISPLACEMENT METERS . v ACCREDITED STANDARDS COMMITTEE B109 . . . . “ vi SCOPE . 1 PART I . . 2 DEFINITIONS . . “ . 2 PART II . “ “ . 5 2.1 SCOPE . 5 2.2 DIMENSIONS 5 2.3 METER IDENTIFICATION 5 2.4 DIAPH

4、RAGM IDENTIRCATION . 7 2.5 INLET IDENTIFICATION 7 2.6 PROTECTION OF METERS 7 2.7 METER INDEX . 7 2.8 CORROSION AND CHEMICAL RESISTANCE OF INTERNAL PARTS . 8 2.9 CORROSION AND CHEMICAL RESISTANCE OF EXTERNAL PARTS OF GAS METERS 8 2.10 METER INDEX WINDOW IMPACT TEST 9 2.1 1 METER INDEX WINDOW CLEARNES

5、S TEST . 9 2.12 TEMPERATURE AND THERMAL SHOCK RESISTANCE . 9 2.1 3 STRENGTH OF METER CONNECTIONS 9 PART III . . “ 11 PERFORMANCE REQUIREMENTS FOR QUALIFYING NEW TYPE METERS . 11 3.1 SCOPE 11 3.2 METER CLASSES 11 3.3 ACCURACY OF METERS . 12 3.4 PRESSURE AND LEAK TESTS 14 3.5 NOISE AND VIBRATION 14 PA

6、RT N . . . 15 4.1 SCOPE 15 4.2 TEST REQUIREMENTS . 15 4.4 RECORDS . 16 PART V . . . “ . 17 METER INSTALLATION REQUIREMENTS . . “ . “ . 17 5.1 SCOPE 17 5.2 GENERAL REQUIREMENTS 17 5.3 LOCATION . 17 5.4 INSTALLATION . 17 5.5 METER SHUT OFF . 17 5.6 METER SUPPORT 17 5.7 METER SIZING 17 5.8 SPACING OF M

7、ETERS 17 5.9 IDENTIFICATION 17 5.1 1 SPECIAL SERVICE REQUIREMENTS . 18 PART VI . . . . 19 AUXILIARY DEVICES FOR GAS METERS . . “ . . 19 6.1 SCOPE 19 6.3 REMOTE METER READING DEVICES 20 PART W . . . .“. 22 TEST METHODS AND EQUIPMENT 22 7.1 SCOPE 22 7.2 MEASUREMENT REFERENCE BASE . 22 7.3 UNITS OF MEA

8、SURE 22 HISTORY OF THE DEVELOPMENT OF STANDARDS FOR DIAPHRAGM-TYPE CONSTRUCTION REQUIREMENTS FOR QUALIFYING NEW-TYPE METERS . . 5 IN-SERVICE PERFORMANCE . . . . 15 4.3 IN-SERVICE PERFORMANCE PROGRAMS . 15 5.1OON-SITEINSPECTION 17 6.2 CONSTANT-PRESSURE-COMPENSATING INDEX 20 1 7.4 BASE CONDITIONS 22 7

9、.5 METER TESTING SYSTEMS 23 7.6 CALIBRATION OF METER TESTING SYSTEMS 24 APPENDIX A . 26 CONNECTION DIMENSIONS, NOMINAL . . 26 APPENDIX B . 27 THREAD SPECIFICATIONS . . 27 APPENDIX C 28 GENERAL SERVICE CAPACITY EQUATION . 28 APPENDIX D . 30 METER ACCURACY . “ 30 APPENDIX E . 31 PROVER BELL CALIBRATIO

10、N BY PHYSICAL MEASUREMENT . 31 APPENDIX F 34 BAR CODE FOR METERS AND AUXILIARY DEVICES 34 . 11 STD-AGA BLOS.1-ENGL 2000 I 9008836 00013LO 549 DISCLAIMERS AND COPYRIGHT Nothing contained in this ANSI standard is to be construed as granting any right, by implication or otherwise, for the manufacture,

11、sale or use in connection with any method, apparatus or product covered by letters patent, or as insuring anyone against liability for inji-ingement of letters patent. This standard may be used by anyone desiring to do so. Eflorts have been made to ensure the accuracy and reliability of the data con

12、tained in this publication; however, ANSI and AGA make no representation, warranty or guarantee in connection wirh ihis standard and hereby expressly disclaim any liability or responsibility for loss or damage resultingfrom its use; for any iiohtion of any federal, state or municipal regulation with

13、 which this standard may conflict; or for the infringement of any patent from the use of this standard. Nothing contained in this standard should be viewed as an endorsement by ANSl/AGA of any particular manufacturers products. Permission is granted to republish material herein in laws or ordinances

14、, and in regulations, administrative orders, or similar documents issued by public authorities. Those desiring permission for other publicatwn should consult the Operating and Engineering Section, American Gas Association, 400 North Capitol Street, NW, 4 Floor, Washington. DC 20001, U.S.A. Copyright

15、 0 2000 American Gas Association, Ali Rights Reserved iii PREFACE This publication represents a basic standard for safe operation and substantial and durable construction for diaphragm-type gas displacement meters having a gas flow rating of under 500 cubic feet per hour (14.16m3/h) at 0.5 inch wate

16、r column (125 Pa) differential pressure at standard conditions. This work is the result of years of experience, supplemented by extensive research. The standard is designed to help ensure efficient performance and substantial construction of equipment. It is recognized that during any transition per

17、iod to the metric system, sizes and dimensions need to be expressed in either the metric system or the inch-pound system or in both. In this document, both systems are used, with the inch-pound units given preference. In most cases, a soft conversion from existing inch-pound values is shown. Soft co

18、nversion implies a change in nomenclature only; in this document, the alternative nomenclatures (metric and inch-pound) are shown by using parentheses and can be used interchangeably. Hard conversion is used to express metric values in (closely equivalent) round inch-pound units. Bracketed values ar

19、e not to be used interchangeably with the corresponding metric values. Nothing in this standard is to be considered as in any way indicating a measure of quality beyond compliance with the provisions it contains. It is designed to allow the construction and performance of displacement meters that ma

20、y exceed the various provisions specified in any respect. In its preparation, recognition was intended to be given to the possibility of improvement through ingenuity of design. As progress takes place, revisions may become necessary. When they are believed desirable, recommendations should be forwa

21、rded to the Chairman of ANSI B 109 Committee, Operating and Engineering Section, American Gas Association, 400 North Capitol Street, NW, 4h Floor, Washington, DC 20001, U.S.A. Users of this document should consult applicable federal, state and local regulations. The American Gas Association (AGA) do

22、es not, by the publication of this document, intend to present specifications that are not in compliance with applicable rules, and this document may not be construed as doing so. NOTICE: “tis American National Standard may be revised or withdrawn at any time. The procedures of the American National

23、 Standards Institute, Inc. (ANSI) require that action be taken to reaffirm, revise or withdraw this standard no later than five years from the date of publication. When any revisions are deemed advisable, recommendations should be forwarded to the American Gas Association. A form is included for tha

24、t purpose at the end of this standard. Purchasers of American National Standards may receive current information on ail standards by writing to the American National Standards Institute, Inc., 11 West 42nd Street, New York, NY 10036, U.S.A.; by calling (212) 642-4900, by faxing ANSI at (212) 398-002

25、3; or by visiting ANSIs World Wide Web site at http:/www.ansi.org. To purchase additional copies of this standard, contact: AGA Distribution Center, P.O. Box 79230, Baltimore, MD 21279-0230; Fax: (301) 206-9789; Phone: (301) 617-7819 or go to AGAS web page at www.aga.org/catalog. iv STD = AGA 2000 H

26、ISTORY OF THE DEVELOPMENT OF STANDARDS FOR DIAPHRAGM-TYPE GAS DISPLACEMENT METERS In response to an expressed need within the industry for standardization of diaphragm-type gas displacement meters, the Amencan Gas Association late in 1966 requested the establishment of a project within the American

27、National Standards Institute for development of suitable standards for such meters. At a General Conference held on January 31, 1967, at ANSI headquarters, approval of the project scope was obtained, which was subsequently endorsed by the Mechanical Standards Board of ANSI. The organizational meetin

28、g of ANSI Committee E109 was held on November 30, 1967. at which time five subcommittees were established to develop various sections of the standard. The first draft standard was issued in June 1970 for review and comment. This was followed by three additional drafts, each incorporating modificatio

29、ns made in the light of comments received. To ensure that the standard as published would have wide acceptance, the fourth draft was distributed on an industry-wide basis and to all known interested pariies. Comments received on the fourth draft were reviewed by the various subcommittees and indicat

30、ed revisions were made in two additional drafts. Draft Six was reviewed by Committee 9109 at its May 4, 1973, meeting and the standard approved for submittal to ANSI for endorsement as an American National Standard. Throughout all stages of development of this standard, consideration has been given

31、to the work done by the Task Committee on Standardization of Meter Purchase Specifications of the Operating Section of the American Gas Association as published in Gas Meter Specifications (OP-58-2,1963). The first edition of the diaphragm-type gas displacement meter standard (Bl9.1) was endorsed as

32、 an ANSI standard by the American National Standards Institute, Inc., on November 27, 1973. An addendum (Bl9.la) was published in 1980. Separate standards were also published in 1980 for larger gas displacement meters (500 cubic feet per hour capacity and overbBl9.2 and for rotary type gas displacem

33、ent meters-B109.3. In the second edition, auxiliary devices relating only to larger capacity meters were deleted from this standard and added to other appropriate standards. Soft metric conversions and informative appendices on prover bell calibration and bar coding were added to this standard. The

34、second edition was approved by ANSI on January 9, 1987. In the third edition, minor editorial changes and a title correction were made. The third edition was approved by ANSI on November 12,1992. This is the fourth edition of standard B109.1, in which several additionsldeletions have been made to av

35、oid any ambiguity, to make it more consistent and to improve upon some requirements. Substantive changes have been shown by a bar I I in the margin. V ACCREDITED STANDARDS COMMITTEE B109 GREGORY S. VERAA, Chairman DAVID F. KEE, Vice Chairman Ali M. Quraishi, Administrative Secretary (Non-Voting) REP

36、RESENTING AMERICAN GAS ASSOCIATION (AGA): Cathy Chang Winston Meyer Gregory S. Veraa REPRESENTING AMERICAN PUBLIC GAS ASSOCIATION (APGA): Essa Rhebi REPRESENTING AMERICAN SOCIETY OF MECHAMCAL ENGINEERS (ASME): James C. Devore REPRESENTING FEDERAL ENERGY REGULATORY COMMISSION (FERC): Chris M. erby RE

37、PRESENTING GAS APPLIANCE MANUFACTURERS ASSOCIATION (GAMA): David F. Kee REPRESENTING GAS METER MANUFACTURERS: Donald A. Jones Paul Adams Richard A. Sallee Dane L. Ehrich Jerry Kamalieh Vacant REPRESENTING NATIONAL ASSOCIATION OF REGULATORY UTILITY COMMISSIONERS (NARUC): Donald J. Sturma John P. Zeko

38、ll REPRESENTING NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY (NIST): George Mattingly REPRESENTING NATIONAL PROPANE GAS ASSOCIAIION (NPGA): Bruce Swieciki INDIVIDUAL MEMBER: Thomas J. Coates vi STDeAGA BLO9-1-ENGL 2000 m 9008836 00013Lir 194 E SCOPE This standard applies to diaphragm-type gas disp

39、lacement meters, designed for revenue measurement of fuel gas, having a flow rating of less than 500 cubic feet per hour (14.16m3/h) capacity at 0.5 inch water column (125 Pa) differential pressure at standard conditions. Part 1 comprises a list of definitions and tem used throughout the standard. P

40、art II covers the construction requirements for qualifying new-type meters in the designated flow-rate ranges. Part III covers the performance requirements for qualifying new-type meters in the designated flow-rate ranges. Part IV covers the “in-service” performance requirements for diaphragm-type m

41、eters in the designated flow-rate ranges. Part V addresses installation requirements for these meters. Part VI pertains to auxiliary devices used with gas meters covered by this standard. Part VI1 covers test methods and equipment. 1 STD-AGA BLOSmL-ENGL 2000 E 900883b 0003335 020 PART I DEFINITIONS

42、1.1 ACCURACY, METER. The degree to which a meter correctly measures the volume of gas passing through it, detemned by comparing the volume registered by the meter with that registered by the prover. (See Appendix D for methods of expressing meter accuracy.) 1.2 ADAPTOR PLATE, INSTRUMENT. A specially

43、 designed plate mounted between a meter and an instrument to provide for a proper drive to the instrument. 1.3 AUXILIARY DEVICES. Devices used with a meter to provide an adjustment of the meter reading, to permit obtaining special information, or to transmit information to a remote location. 1.4 BAD

44、GE. A permanent plate, affixed in a conspicuous place on a meter, containing basic meter information. 1.5 BASE CONDITIONS. The standard base conditions of pressure and temperature for the volumetric measurement of natural gas, ANSVAPI 2562-1969, has established 60F (156C) and 14.73 psi (101.56 kPa)

45、as the base temperature and pressure to which all volumes are commonly referred. 1.6 BOTTLE, CUBIC FOOT. A specially constructed and calibrated bottle, usually immersion type, complete with an immersion tank containing a light oil of low vapor pressure, with the bottle suspended over the tank by mea

46、ns of a suitable cord and pulley so that the bottle may be immersed in the oil between two graduations, top and bottom. The bottle is constructed so that exactly 1 cubic foot of air is displaced when the bottle is immersed between the two marks. The calibration of the bottle must be traceable to the

47、 National Bureau of Standards. 1.7 CAPACITY, RATED. The capacity obtained by rounding to the nearest multiple of 5 cfh. The average readings of 1 O randomly chosen production-type meters representing a particular meter model. 1.8 CIRCLE(S), READING. Graduated index circles with hands that register t

48、he accumulated volume of gas passed through the meter. 1.9 CIRCLE(S), TEST. A graduated circle provided with a rotating pointer (proving hand) on the meter index, used for testing the meter and for indicating gas flow. Also referred to as index test dial or proving circle. 1.10 CONNECTIONS, METER. T

49、he integral parts of the meter designed for attachment to meter swivels, pipe, or other piping components. 1.11 CONSTANT-PRESSURE-COMPENSATING INDEX. An index used in conjunction with a gas meter operated at a constant pressure, other than the contract base pressure, to indicate gas volume corrected to a contract base pressure. 1.12 CUBIC FOOT, METERED. The quantity of gas that occupies 1 cubic foot when under pressure and temperature conditions existing in the meter. 1.13 CUBIC FOOT, STANDARD. (See ANSI Zi32.) That quantity of gas that und