1、AWWA Standard SM Bolted, Split-Sleeve Couplings Effective date: Nov. 1, 2017. First edition approved by AWWA Board of Directors Jan. 21, 2007. This edition approved June 11, 2017. Approved by American National Standards Institute July 21, 2017. ANSI/AWWA C227-17 (Revision of ANSI/AWWA C227-11) Copyr
2、ight 2017 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 information nor
3、mally 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 of any
4、 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 standards are intended to r
5、epresent a consensus of the water industry that the product described will provide satisfactory ser- vice. When AWWA revises or withdraws this standard, an official notice of action will be placed on the first page of the Official Notice section of Journal American Water Works Association. The actio
6、n becomes effective on the first day of the month following 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 approved the standard or not, from manufacturing, marketing, purchasing, or using
8、 products, processes, or proce - dures not conforming to the standard. American National Standards are subject to periodic review, and users are cau- tioned to obtain the latest editions. Producers of goods made in conformity with an American National Standard are encouraged to state on their own re
9、sponsibility 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 completion
10、 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 publication. Purchasers of American National Standards may rec
11、eive 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. hours of work by your fellow water professionals. Revenue from the sales of this AWWA material sup
12、ports ongoing product development. Unauthorized distribution, either electronic or photocopied, is illegal and hinders AWWAs mission to support the water community. This AWWA content is the product of thousands of ISBN-13, print: 978-1-62576-267-2 eISBN-13, electronic: 978-1-61300-451-7 DOI:http:/dx
13、.doi.org/10.12999/AWWA.C227.17 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 revie
14、w purposes, without the written permission of the publisher. Copyright 2017 by American Water Works Association Printed in USAiii Committee Personnel The Steel Water Pipe Manufacturers Technical Advisory Committee (SWPMTAC) Task Group on C227, which updated this standard, had the following personnel
15、 at the time: Chris Shelley, Chair R.J. Card, Consultant, Sugar Hill, Ga. (AWWA) A. Collins, JCM Industries, Nash, Texas (AWWA) T. Crail, Straub Coupling, Bonsall, Calif. (AWWA) J.L. Luka, American SpiralWeld Pipe Company, Columbia, S.C. (AWWA) C. Shelley, Victaulic, Atlanta Ga. (AWWA) A. Thoemke, V
16、ictaulic, Atlanta, Ga. (AWWA) N. Thogersen, Romac Industries Inc., Bothell, Wash. (AWWA) The AWWA Standards Committee on Steel Pipe, which reviewed and approved this standard, had the following personnel at the time of approval: John H. Bambei Jr., Chair Dennis Dechant, Vice-Chair John L. Luka, Secr
17、etary General Interest Members J.H. Bambei Jr., Bambei Engineering Services, Arvada, Colo. (AWWA) W.R. Brunzell, Brunzell Associates Ltd., Skokie, Ill. (AWWA) R.J. Card, Lockwood, Andrews & Newnam, Sugar Hill, Ga. (AWWA) R.L. Coffey, HDR Engineering Inc., Omaha, Neb. (AWWA) S.N. Foellmi, Black & Vea
18、tch Corporation, Irvine, Calif. (AWWA) R.L Gibson, Freese and Nichols Inc., Fort Worth, Texas (AWWA) M.D. Gossett,* HDR, Denver, Colo. (AWWA) M.B. Horsley,* Horsley Engineering LLC, Overland Park, Kan. (AWWA) R. Issa,* AECOM, McKinney, Texas (AWWA) R.A. Kufaas, Norske Corrosion & Inspection Services
19、 Ltd., Surrey, B.C., Canada (AWWA) J.L. Mattson, Corrosion Control Technologies, Sandy, Utah (AWWA) A. Murdock, CH2M, Salt Lake City, Utah (AWWA) R. Ortega,* Consultant, Spring, Texas (AWWA) * Alternate Copyright 2017 American Water Works Association. All Rights Reserved. iv E.S. Ralph,* Standards E
20、ngineer Liaison, AWWA, Denver, Colo. (AWWA) A.E. Romer, AECOM, Orange, Calif. (AWWA) J.R. Snow, MWH Americas Inc., Denver, Colo. (AWWA) W.R. Whidden, Woolpert, Winter Park, Fla. (AWWA) Producer Members S.A. Arnaout, US Pipe, Dallas, Texas (AWWA) H.H. Bardakjian, Consultant, Glendale, Calif. (AWWA) D
21、. Dechant, Dechant Infrastructure Service, Aurora, Colo. (AWWA) V. DeGra nde, Ameron Water Transmission Group, Rancho Cucamonga, Calif. (AWWA) W.B. Geyer, Steel Plate Fabricators Association, Lake Zurich, Ill. (SPFA) B.D. Keil, Northwest Pipe Company, Draper, Utah (AWWA) J.L. Luka, American SpiralWe
22、ld Pipe Company, Columbia, S.C. (AWWA) R. Mielke, Northwest Pipe Company, Raleigh, N.C. (AWWA) J. Olmos, Ameron International, Rancho Cucamonga, Calif. (AWWA) G.F. Ruchti, Consultant, Punta Gorda, Fla. (AWWA) B.P. Simpson, American Cast Iron Pipe Company, Birmingham, Ala. (AWWA) C.C. Sundberg, Victa
23、ulic, Issaquah, Wash. (AWWA) D. Walker, Avid Protective Products LTD/Tnemec Company, Oakville, Ont., Canada (AWWA) J.A. Wise, Canus International Sales Inc., Surrey, B.C., Canada (AWWA) User Members L. Adams, US Bureau of Reclamation, Denver, Colo. (AWWA) G.A. Andersen, New York City Bureau of Water
24、 Supply, Little Neck, N.Y. (AWWA) B. Cheng, Metro Vancouver, Burnaby, B.C., Canada (AWWA) M.E. Conner, San Diego County Water Authority, San Diego, Calif. (AWWA) M. Garcia,* Standards Council Liaison, Denver Water, Denver, Colo. (AWWA) S. Hattan, Tarrant Regional Water District, Fort Worth, Texas (A
25、WWA) T.J. Jordan, Metropolitan Water District of Southern California, La Verne, Calif. (AWWA) P.K. Karna, Tacoma Water, Tacoma, Wash. (AWWA) M. McReynolds, Metropolitan Water District of Southern California, Oak Park, Calif. (AWWA) K.R. Parbhoo, Los Angeles Department of Water and Power, Los Angeles
26、, Calif. (AWWA) M. Turney, Denver Water, Denver, Colo. (AWWA) * Liaison, nonvoting Alternate Copyright 2017 American Water Works Association. All Rights Reserved. v Contents All AWWA standards follow the general format indicated subsequently. Some variations from this format may be found in a partic
27、ular standard. SEC. PAGE SEC. PAGE Foreword I Introduction vii I.A Background . vii I.B History vii I.C Acceptance vii II Special Issues viii II.A Advisory Information on Product Application . viii II.B Chlorine and Chloramine Degradation of Elastomers . viii III Use of This Standard ix III.A Purcha
28、ser Options and Alternatives ix III.B Modification to Standard x IV Major Revisions . x V Comments . xi Standard 1 General Sec. 1.1 Scope 1 Sec. 1.2 Purpose . 1 Sec. 1.3 Application 1 2 References 2 3 Definitions . 3 4 Requirements Sec. 4.1 Permeation 6 Sec. 4.2 Materials of Construction . 6 Sec. 4.
29、3 Design of Couplings 8 Sec. 4.4 Performance 9 Sec. 4.5 Coating . 11 Sec. 4.6 Installation 12 5 Verification Sec. 5.1 Inspection . 13 Sec. 5.2 Tests 14 Sec. 5.3 Notice of Nonconformance . 14 6 Delivery Sec. 6.1 Marking 14 Sec. 6.2 Packing and Shipping 15 Sec. 6.3 Affidavit of Compliance 15 Figures 1
30、 Typical Bolted, Split-Sleeve Couplings 4 2 Typical Nonrestrained Bolted, Split-Sleeve Coupling Cross Sections . 5 3 Typical Restrained Bolted, Split-Sleeve Coupling Cross Sections . 5 Tables 1 Minimum Physical Properties of Gasket Material . 7 2 Maximum Allowable Angular Deflection . 10 3 Recommend
31、ed Centerline Gaps for Nonrestrained Couplings 10 4 Pipe-End Diameter Tolerances . 12 Copyright 2017 American Water Works Association. All Rights Reserved. This page intentionally blank.vii Foreword This foreword is for information only and is not a part of ANSI*/AWWA C227. I. Introduction. I.A. Bac
32、kground. This standard describes bolted, split-sleeve couplings used to join pipe. It also includes materials of construction, inspection, and testing. These couplings have been used on water pipe since 1981. I.B. History. In October 1999, the AWWA Standards Council authorized the AWWA Standards Com
33、mittee for Steel Pipe to develop a new standard for the use of bolted, split-sleeve couplings for plain-end pipe. The first edition of that standard was approved by the AWWA Board of Directors on Jan. 21, 2007. The second edition was approved on Jan. 23, 2011. This edition was approved on June 11, 2
34、017. I.C. Acceptance. In May 1985, the US Environmental Protection 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. O
35、ther members of the original consortium included the Water Research Foundation (formerly AwwaRF) 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
36、 United States, 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 s
37、uch products, state and local agencies may use various references, including 1. Specific policies of the state or local agency. 2. Two standards developed under the direction of NSF : NSF/ANSI 60, Drinking Water Treatment ChemicalsHealth Effects, and NSF/ANSI 61, Drinking Water System ComponentsHeal
38、th Effects. * American National Standards Institute, 25 West 43rd Street, Fourth Floor, New York, NY 10036. Persons outside the United States should contact the appropriate authority having jurisdiction. NSF International, 789 North Dixboro Road, Ann Arbor, MI 48105. Copyright 2017 American Water Wo
39、rks Association. All Rights Reserved. viii 3. Other references, including AWWA standards, Food Chemicals Codex, Water Chemicals Codex,* and other standards considered appropriate by the state or local agency. Various certification organizations may be involved in certifying products in accor- dance
40、with NSF/ANSI 61. Individual 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. Annex A, “Toxicology Review and Evaluation Procedures,” to NSF
41、/ANSI 61 does not stipulate a maximum allowable level (MAL) of a contaminant for substances not regulated by a USEPA final maximum contaminant level (MCL). The MALs of an unspecified list of “unregulated contaminants” are based on toxicity testing guidelines (noncarcinogens) and risk characterizatio
42、n methodology (carcinogens). Use of Annex A procedures may not always be identical, depending on the certifier. ANSI/AWWA C227 does not address additives requirements. Thus, users of this standard should consult the appropriate state or local agency having jurisdiction in order to 1. Determine addit
43、ives requirements, including applicable standards. 2. Determine the status of certifications by parties offering to certify products for contact with, or treatment of, drinking water. 3. Determine current information on product certification. II. Special Issues. II.A. Advisory Information on Product
44、 Application. Although details differ, all couplings of this type work in a similar fashion and have similar components as depicted in the standard. Coupling manufacturers should be contacted for detailed design information regarding the capabilities of the couplings supplied and proper methods of f
45、ield installation. II.B. Chlorine and Chloramine Degradation of Elastomers. The selection of materials is critical for water service and distribution piping in locations where there is a possibility that elastomers will be in contact with chlorine or chloramines. Documented research has shown that e
46、lastomers such as gaskets, seals, valve seats, and encapsulations may be degraded when exposed to chlorine or chloramines. The impact of degradation is a function of the type of elastomeric material, chemical concentration, contact surface area, elastomer cross section, and environmental conditions
47、as well as * Both publications available from National Academy of Sciences, 500 Fifth Street, NW, Washington, DC 20001. Copyright 2017 American Water Works Association. All Rights Reserved. ix temperature. Careful selection of and specifications for elastomeric materials and the specifics of their a
48、pplication for each water system component should be considered to provide long-term usefulness and minimum degradation (swelling, loss of elasticity, or softening) of the elastomer specified. II.B.1 Gasket Degradation Study. A pipe gasket, having the hardness of a compressed elastomer with a large
49、mass relative to the small exposed surface area, experiences minimal degradation. This was validated in a research paper reported in Journal AWWA,* in which the pipe gasket degradation in a 110 mg/L chloramine solution was found to degrade just the exposed surface. III. Use of This Standard. It is the responsibility of the user of an AWWA standard to determine that the products described in that standard are suitable for use in the particular application being considered. III.A. Purchaser Options and Alternatives. The following information should be prov
