1、 AWWA Standard SM Cold-Water Meters Fire-Ser vice Ty pe Effective date: Apr. 1, 2015. First edition approved by AWWA Board of Directors May 24, 1923. This edition approved Jan. 24, 2015. Approved by American National Standards Institute Oct. 16, 2014. ANSI/AWWA C703-15 (Revision of ANSI/AWWA C703-11
2、) Copyright 2015 American Water Works Association. All Rights Reserved. ii AWWA Standard This document is an American Water Works Association (AWWA) standard. It is not a specification. AWWA standards describe minimum requirements and do not contain all of the engineering and administrative informat
3、ion normally contained in specifications. The AWWA standards usually contain options that must be evaluated by the user of the standard. Until each optional feature is specified by the user, the product or service is not fully defined. AWWA pub- lication of a standard does not constitute endorsement
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5、ed to represent a consensus of the water supply industry that the product described will provide satisfactory service. When AWWA revises or withdraws this standard, an official notice of action will be placed in the Official Notice section of Journal - American Water Works Association. The action be
6、comes effective on the first day of the month fol- lowing the month of Journal - American Water Works Association publication of the official notice. American National Standard An American National Standard implies a consensus of those substantially concerned with its scope and provisions. An Americ
7、an National Standard is intended as a guide to aid the manufacturer, the consumer, and the general public. The existence of an American National Standard does not in any respect preclude anyone, whether that person has ap - proved the standard or not, from manufacturing, marketing, purchasing, or us
8、ing products, processes, or procedures not conforming to the standard. American National Standards are subject to periodic review, and users are cautioned to obtain the latest editions. Producers of goods made in conformity with an American National Standard are encour - aged to state on their own r
9、esponsibility in advertising and promotional materials or on tags or labels that the goods are produced in conformity with particular American National Standards. Caution n oti Ce : The American National Standards Institute (ANSI) approval date on the front cover of this standard indicates completio
10、n of the ANSI approval process. This American National Standard may be revised or withdrawn at any time. ANSI procedures require that action be taken to reaffirm, revise, or withdraw this standard no later than five years from the date of ANSI approval. Purchasers of American National Standards may
11、receive current information on all standards by calling or writing the American National Standards Institute, 25 West 43rd Street, Fourth Floor, New York, NY 10036; 212.642.4900, or emailing infoansi.org. ISBN-13, print: 978-1-62576-055-5 eISBN-13, electronic: 978-1-61300-317-6DOI: http:/dx.doi.org/
12、10.12999/AWWA.C703.15 All rights reserved. No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information or retrieval system, except in the form of brief excerpts or quotations for review purpose
13、s, without the written permission of the publisher. Copyright 2015 by American Water Works Association Printed in USA hours of work by your fellow water professionals. Revenue from the sales of this AWWA material supports ongoing product development. Unauthorized distribution, either electronic or p
14、hotocopied, is illegal and hinders AWWAs mission to support the water community. This AWWA content is the product of thousands of Copyright 2015 American Water Works Association. All Rights Reserved. iii Committee Personnel The AWWA Subcommittee on Compound and Fire-Service Meters, which developed t
15、his stan- dard, had the following personnel at the time: Joe Alongi, Chair J. Alongi, Kansas City Water Services Department, Kansas City, Mo. (AWWA) M.J. Aragon, Denver Water, Denver, Colo. (AWWA) R.A. Barillas, Badger Meter, Milwaukee, Wis. (AWWA) M.C. Bowen, City of Columbus, Division of Water, Co
16、lumbus, Ohio (AWWA) D. Casper, Mueller Systems, Cleveland, S.C. (AWWA) G.H. De Jarlais, Badger Meter, Milwaukee, Wis. (AWWA) A. Dudley, Itron, West Union, S.C. (AWWA) D. Faber, Faber & Associates, Columbus, Ind. (AWWA) L. Gregory, RG3 Meter Company, Longview, Texas (AWWA) A. Hendey Sr., Hendey Meter
17、, Beaumont, Calif. (AWWA) D.E. Hood, M.E. Simpson Company Inc., Valparaiso, Ind. (AWWA) R.N. Koch, Master Meter Inc., Pittsburgh, Pa. (AWWA) D.J. Kullmann, Neptune Technology Group Inc., Marietta, Ga. (AWWA) J. Pintok, RG3 Meter Company, Sanford, Fla. (AWWA) J.A. Reiss, Elster AMCO Water LLC, Ocala,
18、 Fla. (AWWA) J.R. Scarborough III, Neptune Technology Group Inc., Tallassee, Ala. (AWWA) T. Smith, Sensus, Raleigh, N.C. (AWWA) S.M. Swanson, Sensus, Uniontown, Pa. (AWWA) M.A. Thomas, Mueller Systems, Cleveland, S.C. (AWWA) W.J. Vetter, Master Meter Inc., Mansfield, Texas (AWWA) A.M. Watson, Elster
19、 AMCO Water LLC, Ocala, Fla. (AWWA) Th e AWWA Standards Committee on Water Meters, which reviewed and approved this standard, had the following personnel at the time of approval: Thomas A. Kelly Jr., Chair Michael L. Mastic, Secretary General Interest Members D. Faber, Faber & Associates, Columbus,
20、Ind. (AWWA) R.C. Graff, Poway, Calif. (AWWA) Copyright 2015 American Water Works Association. All Rights Reserved. iv D.E. Hood, M.E. Simpson Company Inc., Valparaiso, Ind. (AWWA) M.C. Johnson, Utah State University, Logan, Utah (AWWA) M.J. Kebles, Water Industry Consultant, Las Vegas, Nev. (AWWA) F
21、.S. Kurtz,* Standards Engineer Liaison, AWWA, Denver, Colo. (AWWA) M.L. Mastic, MARS Company, Ocala, Fla. (AWWA) R.A. Richter, National Institute of Standards and Technology, Gaithersburg, Md. (AWWA) F.S. Salser Jr., Floyd S. Salser Jr. & Associates MARS Company, Ocala, Fla. (AWWA) R. San Giacomo, R
22、 & D Engineering P.C., Orchard Park, N.Y. (AWWA) J.A. Welsh, Measurement Canada, Ottawa, Ont., Canada (AWWA) Producer Members F.J. Begale, Badger Meter, Milwaukee, Wis. (AWWA) T.D. Bianchi, Neptune Technology Group Inc., Tallassee, Ala. (AWWA) D. Casper, Mueller Systems, Cleveland, S.C. (AWWA) G.H.
23、De Jarlais, Badger Meter, Milwaukee, Wis. (AWWA) A. Dudley, Itron, West Union, S.C. (AWWA) L. Gregory, RG3 Meter Company Inc., Longview, Texas (AWWA) A. Hendey Sr., Hendey Meter, Beaumont, Calif. (AWWA) M.J. Keilty, Endress + Hauser Flowtec AG, Estes Park, Colo. (AWWA) R.N. Koch, Master Meter Inc.,
24、Pittsburgh, Pa. (AWWA) D.J. Kullmann, Neptune Technology Group Inc., Marietta, Ga. (AWWA) M. Laird, Metron-Farnier LLC, Boulder, Colo. (AWWA) J.F. Panek Jr., McCrometer Inc., Rowley, Iowa (AWWA) J. Pintok, RG3 Meter Company Inc., Sanford, Fla. (AWWA) J.A. Reiss, Elster AMCO Water LLC, Ocala, Fla. (A
25、WWA) M. Shamley, Metron-Farnier LLC, Boulder, Colo. (AWWA) T. Smith, Sensus, Raleigh, N.C. (AWWA) S.M. Swanson, Sensus, Uniontown, Pa. (AWWA) M.A. Thomas, Mueller Systems, Cleveland, N.C. (AWWA) W.J. Vetter, Master Meter Inc., Mansfield, Texas (AWWA) G.M. Voss, McCrometer Inc., Hemet, Calif. (AWWA)
26、A.M. Watson, Elster AMCO Water LLC, Ocala, Fla. (AWWA) * Liaison, nonvoting Alternate Copyright 2015 American Water Works Association. All Rights Reserved. v User Members M.L. Aigen, Boston Water and Sewer Commission, Roxbury, Mass. (NEWWA) J. Alongi, Kansas City Water Services Department, Kansas Ci
27、ty, Mo. (AWWA) M.J. Aragon, Denver Water, Denver, Colo. (AWWA) M.C. Bowen, City of Columbus, Division of Water, Columbus, Ohio (AWWA) W.F. Dunnill, Consolidated Utility District of Rutherford County, Murfreesboro, Tenn. (AWWA) W.M. Garfield, Arizona Water Company, Phoenix, Ariz. (AWWA) D. Griffin, C
28、ity of Winnipeg Water and Waste Department, Winnipeg, Man., Canada (AWWA) P.A. Hayes, Mammoth Community Water District, Mammoth Lakes, Calif. (AWWA) N.D. Kaufman, Truckee Donner Public Utility District, Truckee, Calif. (AWWA) T.A. Kelly Jr., Washington Suburban Sanitary Commission, Laurel, Md. (AWWA
29、) M.S. Krause, Desert Water Agency, Palm Springs, Calif. (AWWA) A. Land, Dallas Water Utilities, Dallas, Texas (AWWA) S.U. Mills-Wright,* Standards Council Liaison, City of Arlington, Arlington, Texas (AWWA) K.C. Molli, Veolia Water North America, Chicago, Ill. (AWWA) J.A. Novak, Milwaukee Water Wor
30、ks, Milwaukee, Wis. (AWWA) J.H. Standi Jr., Golden State Water Company, Fontana, Calif. (AWWA) * Liaison, nonvoting Copyright 2015 American Water Works Association. All Rights Reserved. This page intentionally blank. Copyright 2015 American Water Works Association. All Rights Reserved. vii Contents
31、All AWWA standards follow the general format indicated subsequently. Some variations from this format may be found in a particular standard. SEC. PAGE SEC. PAGE Foreword I Introduction. ix I.A Background ix I.B History . x I.C Acceptance x II Special Issues xi III Use of This Standard xi III.A Purch
32、aser Options and Alternatives xi III.B Modification to Standard xii IV Major Revisions . xii V Comments . xiii Standard 1 General 1.1 Scope 1 1.2 Purpose . 2 1.3 Application 2 2 References 2 3 Definitions . 4 4 Requirements 4.1 Materials . 4 4.2 General Design . 8 4.3 Detailed Design 10 5 Verificati
33、on 5.1 Rejection . 16 6 Delivery 6.1 Marking 16 6.2 Packaging and Shipping 16 6.3 Affidavit of Compliance 16 Appendix A Supplemental Information A.1 Units of Measurement . 17 A.2 Register Types . 17 A.3 Tests 17 A.4 Testing Equipment 18 A.5 Registration Accuracy . 19 A.6 Periodic Tests 21 A.7 Meter
34、Storage 21 A.8 Installation 22 Tables 1 Operating Characteristics (Flow-Rate Information in gpm) . 8 1M Operating Characteristics (Flow-Rate Information in m 3 /hr) . 9 2 Meter Dimensions . 10 3 Physical Characteristics of Companion Flanges 11 4 Register Characteristics . 12 A.1 Average Recommended
35、Intervals Between Meter Tests . 21 Copyright 2015 American Water Works Association. All Rights Reserved. This page intentionally blank. Copyright 2015 American Water Works Association. All Rights Reserved. ix Foreword This foreword is for information only and is not a part of ANSI*/AWWA C703. I. Int
36、roduction. I.A. Background. Fire-service meters were developed in 1908 to assure water agencies that water was not being taken from fire-service lines by unauthorized persons and was not being used at unauthorized flow rates for purposes other than fire protection. The meters were designed to regist
37、er the amount of water used for fires and domestic purposes at the lowest possible loss in pressure. Some of the earlier meters were equipped with valves, referred to as atmospheric valves, in the mainline section. An opening from the atmosphere led to a groove in the face of the seat ring. When the
38、 rubber seat ring was in the closed position, it bore against this groove and opened a small lever-actuated needle valve located within the groove. This lowered the pressure in the groove to atmospheric, increasing the valve closing force. When the main valve opened and the rubber seat ring moved aw
39、ay from the groove, the small needle valve closed the groove to the atmosphere, thereby pre- venting the flow of water from within the meter. Rather than measuring the water that passed through the mainline section by measuring chamber and register, as is currently the case, the first fire-service m
40、eters used a time meter to indicate how long the mainline valve was in the open position. The time registered in hours and minutes. The displacement-type time meter had a cap with a small orifice placed over the outlet end of the meter and was connected at the inlet end of the seat-ring groove menti
41、oned above. When the mainline valve opened, a small amount of water was discharged from the groove and passed through the displacement meter to the atmosphere. The small discharge of water was carefully regulated to pass a relatively definite amount of water per hour and would be registered on the m
42、eter dial as 1-hr duration. In the ensuing years, many design changes have been made to fire-service meters to improve their performance at different flow rates, from the lowest up to the torrents encountered under firefighting conditions, as well as heavy city and industrial loads. Fire-service met
43、ers are also used as master meters to measure widely variable flow rates from reservoirs and other water services. * American National Standards Institute, 25 West 43rd Street, Fourth Floor, New York, NY 10036. Copyright 2015 American Water Works Association. All Rights Reserved. x I.B. History. The
44、 first s tandard covering fire-service meters was adopted by the New England Water Works Association (NEWWA) in March 1923 and by the American Water Works Association (AWWA) on May 24, 1923. The second and third editions, with the interim designations 7M.4-T and 7M.4-1949, were approved on Oct. 24,
45、1946, and Jan. 18, 1949, respectively. The fourth edition, designated as C703-49, was approved on Jan. 18, 1949. Subsequent editions of ANSI/AWWA C703 were approved on Jan. 26, 1970, Feb. 3, 1979, and June 22, 1986. ANSI/ AWWA C703-96 was approved by the Board of Directors on June 23, 1996, and reaf
46、firmed without revision on Jan. 18, 2004. A subsequent edition of the standard was approved on June 12, 2011. This edition of the standard was approved on Jan. 24, 2015. I.C. Acceptance. In May 1985, the US Environmental Protection Agency (USEPA) entered into a cooperative agreement with a consortiu
47、m led by NSF International (NSF) to develop voluntary third-party consensus standards and a certification program for direct and indirect drinking water additives. Other members of the original consortium included the Water Research Foundation (formerly AwwaRF) and the Conference of State Health and
48、 Environmental Managers (COSHEM). The American Water Works Association (AWWA) and the Association of State Drinking Water Administrators (ASDWA) joined later. In the United States, authority to regulate products for use in, or in contact with, drinking water rests with individual states.* Local agen
49、cies may choose to impose requirements more stringent than those required by the state. To evaluate the health effects of products and drinking water additives from such products, state and local agencies may use various references, including 1. An advisory program formerly administered by USEPA, Office of Drinking Water, discontinued on Apr. 7, 1990. 2. Specific policies of the state or local agency. 3. Two standards developed under the direction of NSF : NSF/ANSI 60, Drinking Water Treatment ChemicalsHealth Effects, and NSF/ANSI 61, Drinking W
