1、 AWWA Standard SM Cold-Water Meters Turbine Type, for Customer Service Effective date: March 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 C701-15 (Revision of A
2、NSI/AWWA C701-12) 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 adminis
3、trative information 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 consti
4、tute endorsement of any product or product type, nor does AWWA test, certify, or approve any product. The use of AWWA standards is entirely voluntary. This standard does not supersede or take precedence over or displace any applicable law, regulation, or code of any governmental authority. AWWA stan
5、dards are intended 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 Associatio
6、n. The action becomes 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 provi
7、sions. An American 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, p
8、urchasing, or using 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 stat
9、e on their own responsibility 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 ind
10、icates completion 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 Nationa
11、l Standards may 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: 978-1-62576-053-1 eISBN-13, electronic: 978-1-61300-315-2DOI: h
12、ttp:/dx.doi.org/10.12999/AWWA.C701.15 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 fo
13、r review purposes, 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
14、 electronic or photocopied, 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 Current-Type Meters, which develope
15、d this standard, had the fol- lowing personnel at the time: Donald J. Kullmann, Chair R.A. Barillas, Badger Meter, Milwaukee, Wis. (AWWA) M.C. Bowen, City of Columbus, Division of Water, Columbus, Ohio (AWWA) D. Casper, Mueller Systems, Cleveland, S.C. (AWWA) G.H. De Jarlais, Badger Meter, Milwaukee
16、, Wis. (AWWA) A. Dudley, Itron, West Union, S.C. (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.F. Panek Jr., McCrometer Inc., Rowley, Iowa (AWWA) J.A. Reis
17、s, Elster AMCO Water LLC, Ocala, 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) W.J. Vetter, Master Meter Inc., Mansfield, Texas (AWWA) A.M. Watson, Elster AMCO Water LLC, Ocal
18、a, 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 June 19, 1988; Jan. 20, 2002; Jan. 21, 2007;
19、and Jan. 22, 2012. This edition was approved Jan. 24, 2015. 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 original design in that it does not use a measuring cage around the turbi
20、ne. 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 of AWWA C704-50, Standard Specifications for Cold-Water MetersCurrent T
21、ype, 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 1984 and revised in 1992 and 2002. The 1978 revision of ANSI/AWWA C701
22、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 Standards Institute, 25 West 43rd Street, Fourth Floor, New York, NY 10036
23、. Copyright 2015 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 differences are listed in Table 1 of ANSI/AWWA C701. The 2002 revision
24、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 Protection Agency (USEPA) entered into a cooperative agreement with a cons
25、ortium 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 Healt
26、h and 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
27、 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 products, state, local, and provincial agencies may use various references, including 1. An advisory program formerly adminis
28、tered 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 Water System ComponentsHealth Eff
29、ects. 4. Other references, including AWWA standards, Food Chemicals Codex, Water Chemicals Codex, and other standards considered appropriate by the state, local, or provincial agency. Various certification organizations may be involved in certifying products in accor- dance with NSF/ANSI 61. Individ
30、ual states or local agencies have authority to accept or accredit certification organizations within their jurisdictions. Accreditation of certi- fication organizations may vary from jurisdiction to jurisdiction. * Persons outside the United States should contact the appropriate authority having jurisdiction. NSF International, 789 N. Dixboro Road, Ann Arbor, MI 48105. Both publications available from National Academy of Sciences, 500 Fifth Street, N. W., Washington, DC 20001. Copyright 2015 American Water Works Association. All Rights Reserved.
