AWWA C206-2011 Field Welding of Steel Water Pipe.pdf

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1、 ANSI/AWWA C206-11 (Revision of ANSI/AWWA C206-03) AWWA Standard Effective date: March 1, 2011. First edition approved by AWWA Board of Directors Jan. 10, 1946. This edition approved Jan. 23, 2011. Approved by American National Standards Institute Jan. 4, 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 WaterField Welding of Steel Water Pipe SM Copyright 2011 American Water Works Association. All Rights Reserved. ii AWWA Standard This docume

3、nt 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 options that must be

4、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 product. The use of AWW

5、A 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 described will provide sa

6、tisfactory service. When AWWA revises or withdraws this standard, an official notice of action will be placed on the first page of the classified advertising section of Journal AWWA. The action becomes effective on the first day of the month following the month of Journal AWWA publication of the off

7、icial 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, and the general public. The existence of an American

8、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 National Standards are subject to periodic review, and us

9、ers 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 goods are produced in conformity with particular Americ

10、an 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 withdrawn at any time. ANSI procedures require that action

11、 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 National Standards Institute, 25 West 43rd Street, Fourth Floo

12、r, 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 information or retrieval system, except in the form of bri

13、ef excerpts or quotations for review purposes, without the written permission of the publisher. Copyright 2011 by American Water Works Association Printed in USA Copyright 2011 American Water Works Association. All Rights Reserved. iii Committee Personnel The task group for updating ANSI/AWWA C206 h

14、ad the following personnel: B. Nash Williams, Chair S.A. Arnaout, Hanson Pressure Pipe, Dallas, Texas (AWWA) H. Bardakjian, Manufacturers Consultant, Glendale, Calif. (AWWA) B. Buchanan, Canusa-CPS, Toronto, Ont. (AWWA) J. Buratto, Lifelast Inc., Vancouver, Wash. (AWWA) B. Card, Manufacturers Consul

15、tant, Sugarhill, Ga. (AWWA) D. Dechant, Manufacturers Consultant, Aurora, Colo. (AWWA) B. Hansen, National Welding Corporation, Midvale, Utah (AWWA) B.D. Keil, Northwest Pipe Company, Portland, Ore. (AWWA) G. Kohlbeck, Felker Brothers, Marshfield, Wis. (AWWA) J. Luka, American SpiralWeld Pipe Compan

16、y, Columbia S.C. (AWWA) R. Mielke, Northwest Pipe Company, Raleigh, N.C. (AWWA) G. Ruchti, American SpiralWeld Pipe Company, Punta Gorda, Fla. (AWWA) R.N. Satyarthi, Baker Coupling Company, Los Angeles, Calif. (AWWA) H. Stoner, Consultant, North Plainfield, N.J. (AWWA) M.A. Vanderbosch, CAB Inc., Oa

17、kwood, Ga. (AWWA) D.R. Wagner, Wagner Consulting, St. Louis, Mo. (AWWA) B.N. Williams, National Welding Corporation, Midvale, Utah (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., Ch

18、air Dennis Dechant, Vice-Chair John L. Luka, Secretary General Interest Members 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) H.E. Dunham, MWH Inc., Bothell, Wash. (AWWA)

19、 Copyright 2011 American Water Works Association. All Rights Reserved. iv S.N. Foellmi, Black & Veatch Corporation, Irvine, Calif. (AWWA) M.B. Horsley,* Black & Veatch Corporation, Kansas City, Mo. (AWWA) J.K. Jeyapalan, Pipeline Consultant, New Milford, Conn. (AWWA) R.A. Kufaas, Norske Corrosion &

20、Inspection Services Ltd., Surrey, B.C. (AWWA) J.L. Mattson, Corrosion Control Technologies, Sandy, Utah (AWWA) D.L. McPherson,* MWH Americas Inc., Cleveland, Ohio (AWWA) W.J. Moncrief,* HDR Engineering Inc., San Diego, Calif. (AWWA) R. Ortega,* Lockwood Andrews & Newnam, Houston, Texas (AWWA) E.S. R

21、alph, Standards Engineer Liaison, AWWA, Denver, Colo. (AWWA) A.E. Romer, AECOM, Newport Beach, Calif. (AWWA) H.R. Stoner, Consultant, North Plainfield, N.J. (AWWA) C.C. Sundberg, CH2M HILL Inc., Issaquah, Wash. (AWWA) G.J. Tupac, G.J. Tupac & Associates Inc., Sun City West, Ariz. (AWWA) W.R. Whidden

22、, Post Buckley Schuh & Jernigan, Orlando, Fla. (AWWA) K.E. Wilson, Standards Council Liaison, Post Buckley Shuh & Jernigan Inc., Tampa, Fla. (AWWA) Producer Members S.A. Arnaout, Hanson Pressure Pipe Inc., Dallas, Texas (AWWA) H.H. Bardakjian, Consultant, Glendale, Calif. (AWWA) M. Bauer, Tnemec Com

23、pany Inc., North Kansas City, Mo. (AWWA) R.R. Carpenter, American SpiralWeld Pipe Company, Birmingham, Ala. (MSS) D. Dechant, Dechant Infrastructure Service, Aurora, Colo. (AWWA) W.B. Geyer, Steel Plate Fabricators Association, Lake Zurich, Ill. (SFPA) B.D. Keil, Northwest Pipe Company, Pleasant Gro

24、ve, Utah (AWWA) J.L. Luka, * American SpiralWeld Pipe Company, Columbia, S.C. (AWWA) R. Mielke,* Northwest Pipe Company, Raleigh, N.C. (AWWA) J. Olmos, Ameron International, Rancho Cucamonga, Calif. (AWWA) J.A. Wise, Canus International Sales Inc., Langley, B.C. (AWWA) User Members G.A. Andersen, Ne

25、w York City Bureau of Water Supply, Little Neck, N.Y. (AWWA) J.H. Bambei Jr., Denver Water, Denver, Colo. (AWWA) * Alternate Liaison, nonvoting Copyright 2011 American Water Works Association. All Rights Reserved. v B. Cheng, Metro Vancouver, Burnaby, B.C. (AWWA) D.W. Coppes, Massachusetts Water Res

26、ources Authority, Southborough, Mass. (NEWWA) R.V. Frisz, US Bureau of Reclamation, Denver, Colo. (BUREC) G. George, Tacoma Water, Water Supply Section, Tacoma, Wash. (AWWA) T.J. Jordan, Metropolitan Water District of Southern California, La Verne, Calif. (AWWA) M. McReynolds,* Metropolitan Water Di

27、strict of Southern California, La Mirada, Calif. (AWWA) G. Oljaca,* Metro Vancouver, Burnaby, B.C. (AWWA) G.P. Stine, San Diego County Water Authority, San Diego, Calif. (AWWA) N.A. Wigner, Los Angeles Department of Water & Power, Los Angeles, Calif. (AWWA) J.V. Young, City of Richmond, Richmond, B.

28、C. (AWWA) * Alternate Copyright 2011 American Water Works Association. All Rights Reserved. This page intentionally blank. Copyright 2011 American Water Works Association. All Rights Reserved. vii Contents All AWWA standards follow the general format indicated subsequently. Some variations from this

29、 format may be found in a particular standard. 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 Purchaser Options and Alternatives xi III.B Modification to Standard xii IV Major Revisions .xii V Comments . xiii Stand

30、ard 1 General 1.1 Scope 1 1.2 Purpose . 1 1.3 Application 2 2 References 2 3 Definitions . 2 4 Requirements 4.1 Materials . 3 4.2 General Requirements . 4 4.3 Joint Types 5 4.4 Qualification of Welding Procedures, Welders, and Welding Operators 6 4.5 Welding Electrodes . 7 4.6 Welding Procedure Deta

31、ils 7 4.7 Repair of Welds . 10 5 Verification 5.1 Inspection . 10 5.2 Testing 11 5.3 Rejection . 12 6 Delivery 6.1 Marking 12 6.2 Packaging and Shipping 13 6.3 Affidavit of Compliance 13 Figure 1 Look-Box for Vacuum Testing of Circumferential Weld Seams . 13 SEC. PAGESEC. PAGE Copyright 2011 America

32、n Water Works Association. All Rights Reserved. This page intentionally blank. Copyright 2011 American Water Works Association. All Rights Reserved. ix Foreword This foreword is for information only and is not a part of ANSI*/AWWA C206. I. Introduction. I.A. Background. The provisions of this standa

33、rd describe the requirements for welding steel water pipe joints in water transmission and distribution lines. The purchaser for each project is responsible for determining if any unusual circumstances related to the project require additional provisions that are not included in the standard. The de

34、sign of field-welded joints is not discussed in this standard. Useful informa - tion on this subject may be found in AWWA Manual M11, Steel PipeA Guide for Design and Installation, and in Useful Information on the Design of Plate Structures. After the welded field joint has been completed, if the pi

35、pe has been coated or lined, the joint shall be coated and lined with a coating system compatible with that on the body of the pipe, in accordance with the requirements for field repairs stated in the appropriate AWWA coating or lining standard. For lap-welded pipe with an inside diameter equal to o

36、r exceeding 48 in. (1,200 mm) and where the purchaser deems single welding to be acceptable, inside welding is recommended. Safety precautions shall be utilized in all pipe sizes, although when pipe with inside diameters less than 48 in. (1,200 mm) down to 27 in. (675 mm) are welded from the inside,

37、 additional safety precautions shall be observed. Interior welding on pipe diameters less than 27 in. (675 mm) is not recommended. Pipe requiring inside welds with limited access should be supplied with 3-in. (75-mm) diameter weld lead pass holes at approximately 400-ft (122-m) centers to allow pass

38、age of welding leads to the joint location. Shorter distances between pass holes may be required, depending on actual project conditions. Pass holes in the pipe will permit shorter welding leads and thus avoid erratic voltage drops caused by excessively long welding leads. The pass hole is fabricate

39、d using a weldable-grade, inside-threaded pipe half coupling welded to a hole cut through the pipe wall. After using the pass hole, a weldable grade plug shall be threaded into the opening and seal-welded to secure. * American National Standards Institute, 25 West 43rd Street, Fourth Floor, New York

40、, NY 10036. Steel PipeA Guide for Design and Installation, AWWA Manual M11, AWWA, Denver, Colo. (2004). Useful Information on the Design of Plate Structures, Steel Plate Engineering Data, Vol. 2, American Iron and Steel Institute, 1101 17th St. NW, Ste. 1300, Washington, DC 20036. Copyright 2011 Ame

41、rican Water Works Association. All Rights Reserved. x I.B. History. This standard was first approved as tentative by AWWA in January 1946 and by the American Welding Society (AWS) in October 1945. It was advanced to standard status by AWWA in 1950 and by AWS in 1951. The joint AWWAAWS activity conti

42、nued through revisions in 1957 (AWWA C206-57 , AWS D7 .0-57) and 1962 (AWWA C206-62, AWS D7 .0-62a). The joint committee was dissolved in 1971, and the standard was assigned to the AWWA Standards Committee on Steel Pipe. Subsequent editions of the standard were published in 1975, 1982, 1988, 1991, 1

43、997 , and 2003. This edition was approved by the AWWA Board of Directors on Jan. 23, 2011. 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 st

44、andards and a certification program for direct and indirect drinking water additives. Other members of the original consortium included the American Water Works Association Research Foundation (AwwaRF, now Water Research Foundation ) and the Conference of State Health and Environmental Managers (COS

45、HEM). 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 agencies may choose to impose req

46、uirements 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, disco

47、ntinued 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 Effects. 4. Other references, including AWWA stand

48、ards, Food Chemicals Codex, Water Chemicals Codex, and other standards considered appropriate by the state or local agency. * NSF International, 789 N. Dixboro Road, Ann Arbor, MI 48105. Water Research Foundation, 6666 W. Quincy Avenue, Denver, CO 80235. Persons outside the United States should cont

49、act the appropriate authority having jurisdiction. Both publications available from National Academy of Sciences, 500 Fifth St. NW, Washington, DC 20418. Copyright 2011 American Water Works Association. All Rights Reserved. xi 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 or accredit certification organizations within their jurisdiction. Accreditation of certi- fication organizations may vary from jurisdictio