AWWA C701-2012 Cold-Water Meters - Turbine Type for Customer Service.pdf

1、 ANSI/AWWA C701-12 (Revision of ANSI/AWWA C701-07) AWWA Standard Effective date: March 1, 2012. First edition approved by AWWA Board of Directors May 24, 1923. This edition approved Jan. 22, 2012. Approved by American National Standards Institute Nov. 30, 2011. 6666 West Quincy Avenue Advocacy Denve

2、r, CO 80235-3098 Communications T 800.926.7337 Conferences www.awwa.org Education and TrainingScience and TechnologySections The Authoritative Resource on Safe Water Cold-Water Meters Turbine Type, for Customer Service SM Copyright 2012 American Water Works Association. All Rights Reserved. ii AWWA

3、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 information normally contained in specifi- cations. The AWWA standards usually contain o

4、ptions 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 publication of a standard does not constitute endorsement of any product or product type, nor does AWWA test, certify, or approve any pro

5、duct. The use of AWWA standards is entirely voluntary. This standard does not supersede or take precedence over or displace any applicable law, regulation, or codes of any governmental authority. AWWA standards are intended to represent a consensus of the water supply industry that the product descr

6、ibed 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 becomes effective on the first day of the month following the month of Journal -

7、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 American National Standard is intended as a guide to aid the manufacturer, the consumer

8、 and the general public. The existence of an American National Standard does not in any respect preclude anyone, whether that person has approved the standard or not, from manufacturing, marketing, purchasing, or using products, processes, or procedures not conforming to the standard. Ameri- can Na

9、tional 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 encouraged to state on their own responsibility in advertising and promotional materials or on tags or labels that the

10、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 completion of the ANSI approval process. This American National Standard may be revised or wit

11、hdrawn 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 publication. Purchasers of American National Standards may receive current information on all standards by calling or writing the American Nationa

12、l Standards Institute, 25 West 43rd Street, Fourth Floor, New York, NY 10036; (212) 642-4900, or e-mailing infoansi.org. 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 inf

13、ormation or retrieval system, except in the form of brief excerpts or quotations for review purposes, without the written permission of the publisher. Copyright 2012 by American Water Works Association Printed in USA Copyright 2012 American Water Works Association. All Rights Reserved. iii Committee

14、 Personnel The AWWA Subcommittee on Current-Type Meters, which developed this standard, had the fol- lowing personnel at the time: Donald J. Kullmann, Chair S. Bartram, Elster AMCO Water Inc., Ocala, Fla. (AWWA) T.D. Bianchi, Neptune Technology Group Inc., Tallassee, Ala. (AWWA) M.C. Bowen, City of

15、Columbus, Division of Water, Columbus, Ohio (AWWA) S. Bruneau, Master Meter Inc., Mansfield, Texas (AWWA) T. Butler, Itron, Silver Springs, Fla. (AWWA) M.D. Cole, Infinity Metering Company, Ocala, Fla. (AWWA) G.H. De Jarlais, Badger Meter Inc., Milwaukee, Wis. (AWWA) A. Dudley, Itron, Greenwood, S.C

16、 (AWWA) G. Gomez, Badger Meter Inc., Milwaukee, Wis. (AWWA) D.E. Hood, M.E. Simpson Company Inc., Valparaiso, Ind. (AWWA) J.E. Jackson, Sensus Technologies Inc., Texarkana, Texas (AWWA) R.N. Koch, Master Meter Inc., Pittsburgh, Pa. (AWWA) D.J. Kullmann, Neptune Technology Group Inc., Marietta, Ga.

17、AWWA) G.G. Land, Dallas Water Utilities, Dallas, Texas (AWWA) J. Panek Jr., McCrometer Inc., Rowley, Iowa (AWWA) J.A. Reiss, Elster AMCO Water Inc., Ocala, Fla. (AWWA) S.M. Swanson, Sensus Technologies Inc., Uniontown, Pa. (AWWA) The AWWA Standards Committee on Water Meters, which reviewed and appr

18、oved this standard, had the following personnel at the time of approval: Michael J. Kebles, Chair Thomas Gwynn, Secretary* General Interest Members R.C. Graff, Poway, Calif. (AWWA) D.E. Hood, M.E. Simpson Company Inc., Valparaiso, Ind. (AWWA) * Nonvoting Copyright 2012 American Water Works Associati

19、on. All Rights Reserved. iv M.C. Johnson, Utah State University, Logan, Utah (AWWA) M.J. Kebles, Water Industry Consultant, Las Vegas, Nev. (AWWA) F.S. Kurtz,* Standards Engineer Liaison, AWWA, Denver, Colo. (AWWA) R.A. Richter, National Institute of Standards and Technology, Gaithersburg, Md. (AWWA

20、) F.S. Salser Jr., Floyd S. Salser Jr. June 19, 1988; Jan. 20, 2002; and Jan. 21, 2007 . This edition was approved Jan. 22, 2012. Between 1923 and 1947 , the propeller-type current meter was developed for pump- station discharge, irrigation, and main-line measurement. This meter differs from the ori

21、ginal design in that it does not use a measuring cage around the turbine. The pro- peller operates directly within the pipeline itself or within the main meter body. The propeller-type meters had operating characteristics different from current-type meters. These differences led to the development o

22、f AWWA C704-50, Standard Specifications for Cold-Water MetersCurrent Type, Propeller Driven. This standard was revised in 1970 and designated as ANSI/AWWA C704-70, Standard for Cold-Water Meters Propeller Type for Main Line Applications. The 1970 version was reaffirmed without revision in 1975 and 1

23、984 and revised in 1992 and 2002. The 1978 revision of ANSI/AWWA C701 included an added distinction between class I and class II types of turbine meters. Class I meters are those previously covered by ANSI/AWWA C701-70, and class II meters are the newer in-line high-velocity * American National Stan

24、dards Institute, 25 West 43rd Street, Fourth Floor, New York, NY 10036. Copyright 2012 American Water Works Association. All Rights Reserved. x type characterized by lower head loss, greater low-flow sensitivity, and tighter accu- racy tolerances over a wider flow range. Details of the performance d

25、ifferences are listed in Table 1 of ANSI/AWWA C701. The 2002 revision of ANSI/AWWA C701 expanded Table 1 for class I meters to show the operating characteristics for low-velocity horizontal-type meters and vertical shaft-type meters separately. I.C. Acceptance. In May 1985, the US Environmental Prot

26、ection Agency (USEPA) entered into a cooperative agreement with a consortium 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 America

27、n Water Works Association Research Foundation (AwwaRF, now Water Research Foundation) and the Conference of State Health and Environmental Managers (COSHEM). The American Water Works Association (AWWA) and the Association of State Drinking Water Administrators (ASDWA) joined later. In the United Sta

28、tes, authority to regulate products for use in, or in contact with, drinking water rests with individual states.* Local agencies 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 produc

29、ts, state, local, and provincial 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

30、/ANSI 60, Drinking Water Treatment ChemicalsHealth Effects, and NSF/ANSI 61, Drinking Water System ComponentsHealth Effects. 4. Other references, including AWWA standards, Food Chemicals Codex, Water Chemicals Codex, and other standards considered appropriate by the state, local, or provincial agenc

31、y. Various certification organizations may be involved in certifying products in accor- dance with NSF/ANSI 61. Individual states or local agencies have authority to accept * Persons outside the United States should contact the appropriate authority having jurisdiction. NSF International, 789 N. Dix

32、boro Road, Ann Arbor, MI 48105. American National Standards Institute, 25 West 43rd Street, Fourth Floor, New York, NY 10036. Both publications available from National Academy of Sciences, 500 Fifth Street, N. W., Washington, DC 20001. Copyright 2012 American Water Works Association. All Rights Reserved.