1、AWWA Standard SM Injection-Molded Polyvinyl Chloride (PVC) Pressure Fittings, 4 In. Through 12 In. (100 mm Through 300 mm), for Water, Wastewater, and Reclaimed Water Service Effective date: Nov. 1, 2017. First edition approved by AWWA Board of Directors June 23, 1991. This edition approved June 11,
2、 2017. Approved by American National Standards Institute May 4, 2017. ANSI/AWWA C907-17 (Revision of ANSI/AWWA C907-12) Copyright 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 specificati
3、on. AWWA standards describe minimum requirements and do not contain all of the engineering and administrative 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 t
4、he user, the product or service is not fully defined. AWWA pub- lication of a standard does not constitute 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 preced
5、ence over or displace any applicable law, regulation, or code of any governmental authority. AWWA standards are intended to represent 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
6、action will be placed on the first page of 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 American Water Works Association publication of the official notice. American National Standar
7、d 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, and the general public. The existence of an American National Standard does not in any respe
8、ct preclude anyone, whether that person has approved the standard or not, from manufacturing, marketing, purchasing, or using 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 late
9、st 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 goods are produced in conformity with particular American National Standards. Caution n oti
10、 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 withdrawn at any time. ANSI procedures require that action be taken to reaffirm, revise, or wi
11、thdraw 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 National Standards Institute, 25 West 43rd Street, Fourth Floor, New York, NY 10036; 212.642.4900;
12、 or emailing infoansi.org. 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 photocopied, is illegal and hinders AWWAs mission to support the water community. This AWWA
13、content is the product of thousands of ISBN 987-1-62576-261-0 eISBN 978-1-61300-447-0 DOI: http:/dx.doi.org./10.12999/AWWA.C907.17 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,
14、or any information or retrieval system, except in the form of brief excerpts or quotations for review purposes, without the written permission of the publisher. Copyright 2017 by American Water Works Association Printed in USA Copyright 2017 American Water Works Association. All Rights Reserved. iii
15、 Committee Personnel The Standard C907 subcommittee that developed this standard had the following personnel at the time: Larry Gill, Chair John Riordan, Vice-Chair General Interest MembersL.J. Gill, IPEX Management Inc., Oakville, Ont., Canada (AWWA) J. Riordan, HARCO Fittings, Lynchburg, Va. (AWWA
16、) User Members K.S. Jeng-Bulloch, City of Houston Public Works and Engineering, Houston, Texas (AWWA) The AWWA Standards Committee on PVC Pressure Pipe and Fittings, which developed and approved this standard, had the following personnel at the time of approval: Bill Whidden, Chair Robert P. Walker,
17、 Vice-Chair General Interest Members J.P. Castronovo, Consultant, Blue Ridge, Ga. (AWWA) A. Chastain-Howley,* Black & Veatch, Frisco, Texas (AWWA) A.J. Ciechanowski, NSF International, Ann Arbor, Mich. (AWWA) S.J. Cook, Black & Veatch, Virginia Beach, Va. (AWWA) S. Ferry, PSILab Inc., Longmont, Colo
18、. (AWWA) J. Hebenstreit, UL LLC, Northbrook, Ill. (UL) S.C. Macleod, Melville, N.Y. (AWWA) M.T. Marino, Nussbaumer & Clarke Inc., Buffalo, N.Y. (AWWA) T.J. McCandless,* Standards Engineer Liaison, AWWA, Denver, Colo. (AWWA) S.A. McKelvie, HDR Engineering Inc., Boston, Mass. (AWWA) J.R. Paschal, Pasc
19、hal Engineering LLC, Howell, Mich. (AWWA) * Liaison, nonvoting Alternate Copyright 2017 American Water Works Association. All Rights Reserved. iv J.K. Snyder, Snyder Environmental Engineering Associates, Audubon, Pa. (AWWA) W.R. Whidden, Woolpert, Winter Park, Fla. (AWWA) Producer Members R.R. Bisho
20、p, Diamond Plastics Corporation, Grand Island, Neb. (AWWA) S.E. Cooper, Uni-Bell PVC Pipe Association, Louisville, Ky. (AWWA) L.J. Gill, IPEX Management Inc., Oakville, Ont., Canada (AWWA) G. Gundel,* Specified Fittings Inc., Bellingham, Wash. (AWWA) M. Huynh, JM Manufacturing Company Inc. DBA JM Ea
21、gle, Los Angeles, Calif. (AWWA) R. Magargal,* CertainTeed Corporation, Valley Forge, Pa. (AWWA) T. Marti,* Underground Solutions Inc., Warrendale, Pa. (AWWA) J. Riordan, HARCO Fittings, Lynchburg, Va. (AWWA) L.D. Schmidt,* Diamond Plastics Corporation, Grand Island, Neb. (AWWA) B. Sukolsky, Specifie
22、d Fittings, Bellingham, Wash. (AWWA) R.P. Walker, Underground Solutions Inc., Southlake, Texas (AWWA) User Members J.R. Barbier, Denver Water, Denver, Colo. (AWWA) L.M. Bowles, Bureau of Reclamation, Denver, Colo. (AWWA) K.S. Jeng-Bulloch, City of Houston Public Works and Engineering, Houston, Texas
23、 (AWWA) A. Korell, City of North Bay, North Bay, Ont., Canada (AWWA) J. Larson, Marshall Municipal Utilities, Marshall, Minn. (AWWA) T.E. Layton, Orange County Utilities, Orlando, Fla. (AWWA) V.B. Sandoval, Natural Resources Conservation Service, Boise, Idaho (AWWA) * Alternate Copyright 2017 Americ
24、an 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 particular standard. SEC. PAGE SEC. PAGE Foreword I Introduction vii I.A Background . vii I.B History vii I.C Acceptance
25、 vii II Special Issues viii II.A Proper Design Consideration viii II.B Gasket Materials ix III Use of This Standard ix III.A Purchaser Options and Alternatives ix III.B Modification to Standard x IV Major Revisions . x V Comments x Standard 1 General 1.1 Scope 1 1.2 Purpose . 2 1.3 Application 2 2 R
26、eferences 2 3 Definitions . 3 4 Requirements 4.1 Permeation 5 4.2 Materials . 5 4.3 Fitting Requirements . 6 4.4 Pressure Class of Fittings . 15 4.5 Pressure Class Thermal Derating Factors. 15 4.6 Surge Pressure . 16 5 Verification 5.1 Test Methods 17 5.2 Inspection . 20 6 Delivery 6.1 Marking 20 6.
27、2 Shipping and Delivery . 21 6.3 Affidavit of Compliance 21 Figures 1 Typical Bell Designs 7 2 Tees and Reducing Tees 8 3 111/4 Bends (B B) . 9 4 221/2 Bends (B B) . 9 5 45 Bends (B B) 9 6 45 Bends (B Sp). 9 7 90 Bends (B B) 10 8 Increaser/Reducer Coupling (B Sp) . 10 9 Line Coupling (B B) . 10 10 R
28、epair Coupling (B B) . 10 11 Single-Tapped Coupling (B B AWWA) 11 Copyright 2017 American Water Works Association. All Rights Reserved. vi 12 Single-Tapped Coupling (B B NPT) 11 13 Double-Tapped Coupling (B B AW WA AW WA) 12 14 Plug (Sp) . 12 15 Tapped Plug (Sp NPT). 13 16 IPS CI Adapter (B Sp) . 13
29、 17 Cap (B) . 14 18 Hydrant Tees . 14 Tables 1 Wall Thicknesses, Bell Depths, and Inside Diameters of PVC Fittings . 7 2 Tees and Reducing Tees 8 3 111/4 Bends (B B) . 9 4 221/2 Bends (B B) . 9 5 45 Bends (B B) 9 6 45 Bends (B Sp). 9 7 90 Bends (B B) 10 8 Increaser/Reducer Coupling (B Sp) . 10 9 Lin
30、e Coupling (B B) . 10 10 Repair Coupling (B B) . 10 11 Single-Tapped Coupling (B B AWWA) 11 12 Single-Tapped Coupling (B B NPT) 11 13 Double-Tapped Coupling (B B AW WA AW WA) 12 14 Plug (Sp) . 12 15 Tapped Plug (Sp NPT). 13 16 IPS CI Adapter (B Sp) . 13 17 Cap (B) . 14 18 Hydrant Tees . 14 19 Temper
31、ature Coefficients . 16 20 Allowable Maximum Occasional Surge Pressure Capacity and Allowable Sudden Changes in Water Velocity for Pipe Operating at 73F (23C) at Working Pressures Expressed as Percent of Nominal Pressure Class (PC) . 16 SEC. PAGE SEC. PAGE Copyright 2017 American Water Works Associa
32、tion. All Rights Reserved. vii Foreword This foreword is for information only and is not a part of ANSI*/AWWA C907. I. Introduction. I.A. Background. Injection-molded, gasketed PVC fittings are suitable for use exclusively with PVC pipe for underground pressure applications. I.B. History. This is th
33、e third edition of ANSI/AWWA C907 . In 1966, AWWA appointed Committee 8350-D to study and report on the adaptability of plastic pipe for use within the water industry. The committee presented its report on June 7, 1967, at AWWAs annual conference. The report included a recommendation that a task gro
34、up be appointed to prepare standards for the use of plastic materials. The AWWA Standards Committee on Thermoplastic Pressure Pipe was established in 1968. Following years of very productive work, the committee was dissolved in June 1988 and replaced by two committees on plastic products: one for po
35、lyolefin and one for polyvinyl chloride (PVC) products. The AWWA Committee on PVC Pressure Pipe and Fittings, which prepared this standard, was formed at that time. The first edition of ANSI/AWWA C907 , Polyvinyl Chloride (PVC) Pressure Fittings for Water4 in. Through 8 in. (100 mm Through 200 mm),
36、was approved by the AWWA Board of Directors on June 23, 1991. The second edition, Injection-Molded Polyvinyl Chloride (PVC) Pressure Fittings, 4 In. Through 12 In. (100 mm Through 300 mm), for Water Distribution, was approved on June 13, 2004. This third edition was approved on June 11, 2017. I.C. A
37、cceptance. 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. Other member
38、s 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 United Sta
39、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 * American National Standards Institute, 25 West 43rd Street, Four
40、th Floor, New York, NY 10036. NSF International, 789 North Dixboro Road, Ann Arbor, MI 48105. Persons outside the United States should contact the appropriate authority having jurisdiction. Copyright 2017 American Water Works Association. All Rights Reserved. viii effects of products and drinking wa
41、ter additives from such products, state, provincial, and local agencies may use various references, including 1. Specific policies of the state, provincial, or local agency. 2. Two standards developed under the direction of NSF: NSF/ANSI 60, Drinking Water Treatment ChemicalsHealth Effects, and NSF/
42、ANSI 61, Drinking Water System ComponentsHealth Effects. 3. Other references, including AWWA standards, Food Chemicals Codex, Water Chemicals Codex,* and other standards considered appropriate by the state, provincial, or local agency. Various certification organizations may be involved in certifyin
43、g products in accor- dance 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 Eva
44、luation Procedures,” to NSF/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 (noncarcinogen
45、s) and risk characterization methodology (carcinogens). Use of Annex A procedures may not always be identical, depending on the certifier. ANSI/AWWA C907 does not address additives requirements. Users of this stan- dard should consult the appropriate state, provincial, or local agency having jurisdi
46、c- tion in order to 1. Determine additives 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.
47、 II.A. Proper Design Consideration. Attention should be called to the need for users of this standard to provide proper design consideration for 1. Trench support. 2. Thrust restraint at areas of unbalanced forces. 3. Long-term effect of any anticipated cyclic transient surge pressures. * Both publi
48、cations available from National Academy of Sciences, 500 Fifth Street, NW, Washington, DC 20001. Copyright 2017 American Water Works Association. All Rights Reserved. ix 4. Exact critical external or internal dimensions, which should be obtained from the manufacturer. II.B. Gasket Materials. II.B.1
49、Selection of Gasket Materials. The sel ection 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. Document research has shown that elastomers such as gaskets, seals, valve seats, and encapsulations may degrade when exposed to chlorine or chloramines. The impact of degradation is a function of the type of elastomeric material, chemical concentration, c
