1、The Authoritative Resource on Safe WaterSMANSI/AWWA C502-05(Revision of ANSI/AWWA C502-94)AWWA StandardEffective date: Sept. 1, 2005.First edition approved by AWWA Board of Directors June 24, 1913.This edition approved June 12, 2005.Approved by American National Standards Institute June 23, 2005.Dry
2、-Barrel Fire HydrantsAdvocacyCommunicationsConferencesEducation and TrainingH17012 Science and TechnologySections6666 West Quincy AvenueDenver, CO 80235-3098T 800.926.7337www.awwa.orgCopyright 2005 American Water Works Association, All Rights Reserved.Approved by American National Standards Institut
3、e: May 21, 2002.Copyright American Water Works Association Provided by IHS under license with AWWANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-iiAWWA StandardThis document is an American Water Works Association (AWWA) standard. It is not a specification. AWWA st
4、andardsdescribe minimum requirements and do not contain all of the engineering and administrative information normallycontained in specifications. The AWWA standards usually contain options that must be evaluated by the user of thestandard. Until each optional feature is specified by the user, the p
5、roduct or service is not fully defined. AWWApublication 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. AWWA standards are intended to represent aconsensus of the water
6、supply industry that the product described will provide satisfactory service. When AWWA revisesor withdraws this standard, an official notice of action will be placed on the first page of the classified advertisingsection of Journal AWWA. The action becomes effective on the first day of the month fo
7、llowing the month of JournalAWWA publication of the official notice.American National StandardAn American National Standard implies a consensus of those substantially concerned with its scope and provisions. AnAmerican National Standard is intended as a guide to aid the manufacturer, the consumer, a
8、nd the general public. Theexistence of an American National Standard does not in any respect preclude anyone, whether that person hasapproved the standard or not, from manufacturing, marketing, purchasing, or using products, processes, or proceduresnot conforming to the standard. American National S
9、tandards are subject to periodic review, and users are cautionedto obtain the latest editions. Producers of goods made in conformity with an American National Standard areencouraged to state on their own responsibility in advertising and promotional materials or on tags or labels that thegoods are p
10、roduced in conformity with particular American National Standards.CAUTION NOTICE: The American National Standards Institute (ANSI) approval date on the front cover of this standardindicates completion of the ANSI approval process. This American National Standard may be revised or withdrawn atany tim
11、e. ANSI procedures require that action be taken to reaffirm, revise, or withdraw this standard no later than fiveyears from the date of publication. Purchasers of American National Standards may receive current information on allstandards by calling or writing the American National Standards Institu
12、te, 25 West 43rd Street, Fourth Floor, New York,NY 10036; (212) 642-4900.Science and TechnologyAWWA unites the entire water community by developing and distributing authoritative scientific and technologicalknowledge. Through its members, AWWA develops industry standards for products and processes t
13、hat advance publichealth and safety. AWWA also provides quality improvement programs for water and wastewater utilities.All rights reserved. No part of this publication may be reproduced or transmitted in any form or by any means, electronicor mechanical, including photocopy, recording, or any infor
14、mation or retrieval system, except in the form of briefexcerpts or quotations for review purposes, without the written permission of the publisher. Copyright 2005 by American Water Works AssociationPrinted in USACopyright 2005 American Water Works Association, All Rights Reserved.Approved by America
15、n National Standards Institute: May 21, 2002.Copyright American Water Works Association Provided by IHS under license with AWWANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-iiiCommittee PersonnelThe Standards Committee on Fire Hydrants, which reviewed and approve
16、d this standard,had the following personnel at the time of approval:Nelson O. Mejia, ChairLarry R. Dunn, SecretaryGeneral Interest MembersE.E. Arasmith, Arasmith Consulting Resource, Albany, Ore. (AWWA) G.E. Laverick, Underwriters Laboratories Inc., Northbrook, Ill. (UL)P.I. McGrath Jr., Consultant,
17、 Birmingham, Ala. (AWWA)E.F. Straw, Insurance Services Office Inc., Duluth, Ga. (ISO)J.M. Stubbart,*Standards Engineer Liaison, AWWA, Denver, Colo. (AWWA)M.P. Yoke, Anniston, Ala. (AWWA)Ken Zastrow,Underwriters Laboratories Inc., Northbrook, Ill. (UL)Stanley Ziobro, FM Approvals, West Glocester, R.I
18、. (FMRC)Producer MembersT.M. Alcott,Waterous Company, South St. Paul, Minn. (AWWA)Jerry Bottenfield, Clow Valve Company, Oskaloosa, Iowa (AWWA)L.R. Dunn, U.S. Pipe that is, left(counterclockwise) or right (clockwise). This direction should conform to the practicein the system where the hydrant is to
19、 be installed (Sec. 4.6.5.3).10. Size and type of inlet connection and joint accessories, such as gaskets, bolts,or nuts, if any (Sec. 4.7).11. Size of hydrant, designated by the nominal diameter of the main valve open-ing (Sec. 4.8.1.4).12. Color of the finish paint above the ground line and any sp
20、ecial paint require-ments (Sec. 4.13.2 and Sec. 4.13.3).13. Location to which hydrants are to be shipped and any special shippinginstructions or requirements (Sec. 6.2).Optional information (if required by purchaser)1. Type of shutoff, if there is a preference (Sec. 1.1).2. Special designs or featur
21、es (Sec. 4.2 and Sec. 4.5).3. Catalog and maintenance data, net weight, and drawings. Specify whetherdrawings are to be accepted before the manufacture of the hydrants (Sec. 4.3).4. Alternate materials, if the water that will be used in the hydrants promotesgalvanic corrosion (Sec. 4.4.2.5.3; also,
22、consult manufacturers).5. Outlet-nozzle cap chains and cap gasket, if not desired (Sec. 4.6.3.2).6. Operating and outlet-nozzle cap nutsif different from those specified inthis standard and if special protection of the operating nut is required (Sec. 4.6.5.5).7. Harnessing lugs (Sec. 4.7.2).8. Drain
23、 outletwhether it is to be omitted or retained and tapped for drainpipe (Sec. 4.8.2).9. Corrosion-resistant bolts and nuts (Sec. 4.11).*National Fire Protection Association, 1 Batterymarch Park, Quincy, MA 02269. Copyright 2005 American Water Works Association, All Rights Reserved.Approved by Americ
24、an National Standards Institute: May 21, 2002.Copyright American Water Works Association Provided by IHS under license with AWWANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-xi10. Records of production tests (Sec. 5.1).11. Whether inspection is required (Sec. 5.3
25、.1).12. Affidavit of compliance (Sec. 6.3).III.B. Modification to standard. Any modification of the provisions, defini-tions, or terminology in this standard must be provided by the purchaser.IV. Major Revisions. Major changes made to the standard in this revisioninclude the following:1. Edited thro
26、ughout to conform to the current AWWA recommended format.2. NSF/ANSI 61 references for fire hydrants corrected.3. Sec. 1.2, Purpose, and Sec. 1.3, Application, were added.4. Identification of copper alloys changed to refer to their respective ASTM*standard number in Table 1 in place of the letter gr
27、ade of bronzes.5. References to metric bolting added.6. Table 5 expanded to include loss of head at 1,500 gpm flow rates.7. Figure A.1 added for the “American National Fire Hose Screw Thread” con-figuration.8. Figure A.2 added for the “Nominal Dimensions of Connections.”V. Comments. If you have any
28、comments or questions about this standard,please call the AWWA Volunteer and Technical Support Group, (303) 794-7711,FAX (303) 795-7603, write to the group at 6666 West Quincy Avenue, Denver, CO80235-3098, or e-mail at standardsawwa.org.*ASTM International, 100 Barr Harbor Dr., West Conshohocken, PA
29、 19428.Copyright 2005 American Water Works Association, All Rights Reserved.Approved by American National Standards Institute: May 21, 2002.Copyright American Water Works Association Provided by IHS under license with AWWANot for ResaleNo reproduction or networking permitted without license from IHS
30、-,-,-This page intentionally blank.Copyright 2005 American Water Works Association, All Rights Reserved.Approved by American National Standards Institute: May 21, 2002.Copyright American Water Works Association Provided by IHS under license with AWWANot for ResaleNo reproduction or networking permit
31、ted without license from IHS-,-,-1AWWA StandardANSI/AWWA C502-05(Revision of ANSI/AWWA C502-94)Dry-Barrel Fire HydrantsSECTION 1: GENERALSec. 1.1 ScopeThis standard describes post-type, dry-barrel fire hydrants with compressionshutoff (opening against or with the pressure) or gate shutoff for use in
32、 water supplyservice in all climates, including those where freezing occurs.1.1.1 Exceptions. This standard does not cover the wet-barrel or flush-type ofhydrants. (For wet-barrel type, see ANSI/AWWA C503. For flush-type, see AWWAManual M17, Installation, Field Testing, and Maintenance of Fire Hydra
33、nts.) Thisstandard, ANSI/AWWA C502, does not provide instructions for installation of firehydrants. For installation information, see ANSI/AWWA C600 and AWWA ManualM17.Sec. 1.2 PurposeThe purpose of this standard is to provide the minimum requirements for dry-barrel fire hydrants for fire-protection
34、 service, including materials, general design,and testing.Sec. 1.3 ApplicationThis standard can be referenced in specifications for purchasing and receivingdry-barrel fire hydrants for water supply service and can be used as a guide forCopyright 2005 American Water Works Association, All Rights Rese
35、rved.Approved by American National Standards Institute: May 21, 2002.Copyright American Water Works Association Provided by IHS under license with AWWANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-2 AWWA C502-05evaluating materials and designing, testing, and ins
36、pecting dry-barrel fire hydrants.The stipulations of this standard apply when this document has been referenced andthen only to dry-barrel fire hydrants for water supply service.SECTION 2: REFERENCESThis standard references the following documents. In their latest revision, theyform a part of this s
37、tandard to the extent specified within the standard. In any caseof conflict, the requirements of this standard shall prevail.ANSI*AS568BAerospace Size Standard for 0-rings.ANSI/AWWA C110/A21.10American National Standard for Ductile-Ironand Gray-Iron Fittings, for Water.ANSI/AWWA C111/A21.11American
38、National Standard for Rubber-GasketJoints for Ductile-Iron Pressure Pipe and Fittings.ANSI/AWWA C115/A21.15American National Standard for Flanged Ductile-Iron Pipe With Ductile-Iron or Gray-Iron Threaded Flanges.ANSI/AWWA C151/A21.51American National Standard for Ductile-IronPipe, Centrifugally Cast
39、, for Water or Other Liquids.ANSI/AWWA C503Wet-Barrel Fire Hydrants.ANSI/AWWA C550Protective Interior Coatings for Valves and Hydrants.ANSI/AWWA C600Installation of Ductile-Iron Water Mains and TheirAppurtenances.ASMEB18.2.1Square and Hex Bolts and Screws, Inch Series.ASME B18.2.3.1MMetric Hex Cap S
40、crews.ASME B18.2.4.1MMetric Hex Nuts, Style 1.ASTMA47Standard Specification for Ferritic Malleable Iron Castings.ASTM A48Standard Specification for Gray Iron Castings.ASTM A108Standard Specification for Steel Bar, Carbon and Alloy, Cold-Finished.*American National Standards Institute, 25 West 43rd S
41、treet, Fourth Floor, New York, NY 10036.Available from Society of Automotive Engineers, 400 Commonwealth Drive, Warrendale, PA 15096. ASME International, Three Park Avenue, New York, NY 10016.ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428.Copyright 2005 American Water Works A
42、ssociation, All Rights Reserved.Approved by American National Standards Institute: May 21, 2002.Copyright American Water Works Association Provided by IHS under license with AWWANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-DRY-BARREL FIRE HYDRANTS 3ASTM A126Stan
43、dard Specification for Gray Iron Castings for Valves,Flanges, and Pipe Fittings.ASTM A153Standard Specification for Zinc Coating (Hot-Dip) on Iron andSteel Hardware.ASTM A197Standard Specification for Cupola Malleable Iron.ASTM A220Standard Specification for Pearlitic Malleable Iron.ASTM A242Standar
44、d Specification for High-Strength Low-Alloy StructuralSteel.ASTM A307Standard Specification for Carbon Steel Bolts and Studs,60,000 psi Tensile Strength.ASTM A395Standard Specification for Ferritic Ductile Iron Pressure-Retaining Castings for Use at Elevated Temperatures.ASTM A536Standard Specificat
45、ion for Ductile Iron Castings.ASTM A575Standard Specification for Steel Bars, Carbon, MerchantQuality, M-Grades.ASTM A576Standard Specification for Steel Bars, Carbon, Hot-Wrought,Special Quality.ASTM B154Standard Test Method for Mercurous Nitrate Test for Copperand Copper Alloys.ASTM B633Standard S
46、pecification for Electrodeposited Coatings of Zinc onIron and Steel.ASTM B766Standard Specification for Electrodeposited Coatings ofCadmium.ASTM D2000Standard Classification System for Rubber Products inAutomotive Applications.AWWA Manual M17, Installation, Field Testing, and Maintenance of FireHydr
47、ants.Federal Specifications.*TT-C-494bCoating Compound, Bituminous, SolventType, Acid Resistant.Federal Standard 595BColor. NFPA1963Standard for Fire Hose Connections. *US Government Defense Printing Service Detachment Office, Customer Service, Building 4D,700 Robbins Ave., Philadelphia, PA 19111.Na
48、tional Fire Protection Association, 1 Batterymarch Park, Quincy, MA 02269.Copyright 2005 American Water Works Association, All Rights Reserved.Approved by American National Standards Institute: May 21, 2002.Copyright American Water Works Association Provided by IHS under license with AWWANot for Res
49、aleNo reproduction or networking permitted without license from IHS-,-,-4 AWWA C502-05SECTION 3: DEFINITIONSThe following definitions shall apply in this standard:1. Cosmetic defect: A blemish that has no effect on the ability of acomponent to meet the structural design and production test requirements of thisstandard. Should the blemish or the activity of plu
