AWWA C800-2001 地下管道阀门和管件.pdf

AMERICAN WATER WORKS ASSOCIATION 6666 West Quincy Avenue, Denver, Colorado 80235 www. awwa.org Copyright 2001 American Water Works Association, All Rights Reserved American Water Works Association ANSI/AWWA C800-01 Revision of ANSI/AWWA C800-89 AWWA STANDARD FOR UNDERGROUND SERVICE LINE VALVES AND FITTINGS Effective date Sept. 1, 2001. First edition approved by AWWA Board of Directors Sept. 1, 1948. This edition approved Jan. 21, 2001. Approved by American National Standards Institute, Inc., July 3, 2001. ii Copyright 2001 American Water Works Association, All Rights Reserved 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 ination normally contained in specifications. The AWWA standards usually contain options that must be uated 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 AWWA standards is entirely voluntary. AWWA standards 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 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 official 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 National Standard does not in any respect preclude anyone, whether that person has approved the standard or not, from manufactur- ing, marketing, purchasing, or using products, processes, or procedures not coning 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 conity 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 conity with particular American National Standards. CAUTION NOTICEThe 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 withdraw this standard no later than five years from the date of publication. Purchasers of American National Standards may receive current ination on all standards by calling or writing the American National Standards Institute, 11 W. 42nd St., New York, NY 10036; 212 642-4900. All rights reserved. No part of this publication may be reproduced or transmitted in any or by any means, electronic or mechanical, including photocopy, recording, or any ination or retri system, except in the of brief excerpts or quotations for review purposes, without the written permission of the publisher. Copyright 2001 by American Water Works Association Printed in USA 标准分享网 w w w .b z f x w .c o m 免费下载 iii Copyright 2001 American Water Works Association, All Rights Reserved Committee Personnel The Standards Committee on Water Service Line Fittings, which reviewed and approved this standard, had the following personnel at the time of approval Lowell W. Warren, Chair Consumer Members T.M. Bowen, Manchester Water Works, Manchester, N.H.AWWA S.C. Danos,* Council Liaison, Littleton Water Department, Littleton, Mass.AWWA J.R. Doutt, Division of Water, Columbus, OhioAWWA R.J. Dudas, Orange County Public Utilities, Orlando, Fla.AWWA R.E. Jennings, City of Fairborn, Fairborn, OhioAWWA E.J. King, Connecticut Water Company, Clinton, Conn.NEWWA R.J. Krol, Department of Public Works, South Bend, Ind.AWWA P.J. Lehman, Peace River/Manasota Regional Water, Sarasota, Fla.AWWA General Interest Members C.E. Cook, Camp Dresser however, they differ from the USA American pipe thread in that they are designed to seal pressure-tight joints without the need for sealing compounds. 8.FittingA part used to connect piping or tubing. 9.InletThe opening in a valve or fitting through which flow from the water main enters the valve or fitting. 10.ManufacturerThe party that manufactures, fabricates, or produces materials or products. 11.NPTNational Pipe Thread as specified in ANSI/ASME B1.20.1. 12.OutletThe opening in a valve or fitting through which flow from the water main leaves the valve or fitting. 13.PurchaserThe person, company, or organization that purchases any materi- als or work to be pered. 14.Service line check valveA check valve used to minimize backflow and reduce the potential for contamination of water in the main line if pressure in the main is reduced or customer pressure is increased. 15.Service saddleA fitting that attaches circumferentially to a pipe to provide for attachment of a corporation stop. 16.Supplier The party that supplies materials or services. A supplier may or may not be the manufacturer. SECTION 4REQUIREMENTS Sec. 4.1Materials 4.1.1General.Materials shall comply with the requirements of the Safe Drinking Water Act and other federal, state, and local requirements. Legislation is subject to change. Therefore, it is the manufacturer’s and purchaser’s responsibility to verify the current requirements of federal, state, and local regulations. 4AWWA C800-01 Copyright 2001 American Water Works Association, All Rights Reserved 4.1.2Castings.Materials in contact with potable water shall be made from copper alloy No. C83600, in accordance with the chemical and mechanical require- ments of ASTM B62 or ASTM B584. This alloy contains nominally 85 percent copper and 5 percent each tin, lead, and zinc. 4.1.3.Component parts.Component parts such as fasteners, seals, and packing may be of other materials selected for adequate endurance, corrosion resistance, and strength. Sec. 4.2General Design Valves and fittings described in this standard shall be adequate for the purpose intended and shall be convenient to install, use, and operate. Valves, fittings, and parts thereof shall be machined to the sizes and tolerances defined in the appropriate standards. End connections may be threaded, brazed, compression, or flared, as appropriate, in conance with Sec. 4.4. 4.2.1Pressure class.The purchaser may specify high-pressure or normal- pressure valves and fittings. Use of valves and fittings above rated pressure must be at the risk of the user and authorized specifically by the manufacturer. 4.2.2Normal pressure.Normal-pressure service line valves and fittings shall be suitable for use with water at 100F 38C and 100 psig 700 kPa for 1-in. 25.4-mm and smaller sizes, and 80 psig 560 kPa for 11/4-in. 31.8-mm through 2-in. 50.8-mm sizes. 4.2.3High pressure.High-pressure service line valves and fittings shall be suitable for use with water at 100F 38C and 150-psig 1050-kPa pressure. Sec. 4.3Detailed Design 4.3.1Dimensions of corporation stops.Because corporation stops are fre- quently used or installed with drilling or tapping machines, certain internal and external size limitations are required for their proper use. 4.3.1.1Minimum inside diameter.Unless otherwise specified by the pur- chaser, the minimum inside diameter of the waterway through a corporation stop shall be large enough to accommodate the drill sizes shown in Table 1. 4.3.1.2Overall body dimensions.For corporation stop to be installed by a tapping machine, overall body dimensions shall con with the dimensions listed in Table 2. 标准分享网 w w w .b z f x w .c o m 免费下载 UNDERGROUND SERVICE LINE VALVES AND FITTINGS5 Copyright 2001 American Water Works Association, All Rights Reserved . 4.3.2Curb stops.Curb stops may be of an angle design or straight-through design and shall provide a drip-tight shutoff in the closed position. The stop head shall be of the tee design or flat design unless otherwise specified by the purchaser. 4.3.3Service saddles.The service saddle shall have a body with a threaded outlet, seal, and suitable means for attachment to the main. The body shall be made to con to the outside configuration of the main. The service saddle shall be designed to provide a drip-tight connection when used as a service connection to the main.* 4.3.4Service line fittings.The fittings used in service lines shall be designed for connection to the service line by threads, brazing, compression, or flaring. Small waterways and abrupt corners causing water turbulence and pressure drop should be minimized. Table 1Maximum drill sizes for installation of corporation stops in service clamps or saddles with a drilling machine Maximum Drill Sizein. Corporation Stop Size in. Corporation Stop With AWWA Thread Inlet Corporation Stop With NPT Thread Inlet 1/27/167/16 5/89/16 3/411/1611/16 1 15/167/8 1 1/4 1 3/16 1 1/8 1 1/2 1 7/16 1 7/16 21 7/8 1 3/4 Table 2Maximum overall body dimensions for corporation stops for use with tapping machine Corporation Stop Size in. Maximum Radius in. Maximum Length less nut in. 1/2 1.5004 5/8 5/8 1.5004 5/8 3/4 1.5004 5/8 11.5004 5/8 1 1/4 2.5009 1/16 1 1/2 2.5009 1/16 22.5009 1/16 *The materials used to produce service saddles are not limited to the cast copper alloys listed in Sec. 4.1. 6AWWA C800-01 Copyright 2001 American Water Works Association, All Rights Reserved 4.3.5Service line check valves.Check valves may be of an angle design or straight-through design, with good fluid-flow characteristics. The spring shall be strong enough to resist opening with a 1-psi pressure in the direction of flow. The check valve shall be field repairable without removing the valve body from the service line. Sec. 4.4End Connections This section describes the threads and other details of the threaded connections used on products described in this standard. 4.4.1Straight threads.All straight threads for flared copper connections shall be in accordance with ANSI/ASME B1.1 and as shown in Tables 3, 4, and 5. Table 3Fitting thread for use with flared copper service tube* Nominal Size in. Threads per Inch MajorPitch Minor Diameter max. in. Length L min. in. Diameter in. Tolerance in. Diameter in. Tolerance in. 1/2 141.004–0.0100.958–0.0060.911 9/16 5/8 141.160–0.0101.114–0.0061.067 9/16 3/4 141.259–0.0101.213–0.0061.171 5/8 111 1/2 1.593–0.0151.536–0.0081.486 3/4 1 1/4 11 1/2 2.055–0.0151.998–0.0081.9481 1 1/2 11 1/2 2.465–0.0152.408–0.0082.3581 1/16 211 1/2 3.185–0.0153.128–0.0083.0781 5/16 * See ASTM B88, B88M, and Sec. A.2 of appendix A attached to this standard. Table 4Coupling nut for use with flared copper service tube** * See ASTM B88, B88M, and Sec. A.2 of appendix A attached to this standard. NominalThreads per Inch Major DiameterPitchMinorLength L2† † This thread is also for all internal threads in fittings used with external threads as shown in Figure 4. Size in. min. in. Diameter in. Tolerance in. Diameter in. Tolerance in. min. in. max. in. 1/2 141.0160.9700.0060.9330.008 9/165/8 5/8 141.1731.1270.0061.0890.008 5/811/16 3/4 141.2661.2200.0061.1890.008 5/811/16 111 1/2 1.6031.5460.0081.5090.010 3/413/16 1 1/4 11 1/2 2.0652.0080.0081.9710.010 15/16 1 1 1/2 11 1/2 2.4752.4180.0082.3810.01011 1/8 211 1/2 3.1953.1380.0083.1010.0101 1/4 1 3/8 标准分享网 w w w .b z f x w .c o m 免费下载 UNDERGROUND SERVICE LINE VALVES AND FITTINGS7 Copyright 2001 American Water Works Association, All Rights Reserved 4.4.2Flared copper connection ends.The combined length of the rounded nose and the external threads on fittings with male ends for connections shall be sufficient to accommodate the copper flare nuts dimensioned in Table 4. 4.4.3Tapered threads.Tapered threads other than the inlet thread of corporation stops shall con to ANSI/ASME B1.20.1. 4.4.4Special thread consideration. 4.4.4.1Standard AWWA corporation valve inlet threads shall con to dimensions given in Table 6. Also see Figure 1. Table 5Corporation stop outlet special-purpose coupling threads** Corporation Stop Outlet External ThreadsInternal Threads of Connecting Coupling† Nominal Size Threads per Major DiameterPitch Diameterin. Length L6 min. Minor DiameterPitch Diameterin. in.Inchin.max.min.in.in.max.min. 1/2 14 31/32 0.9130.907 1/257/64 0.9260.920 5/8 141 3/32 1.0531.049 1/2 11.0661.060 3/4 141 1/4 1.2131.207 9/16 1 3/16 1.2261.220 1121 1/2 1.4561.450 9/16 1 13/32 1.4671.461 * This thread is shown in Figure 5. † The depth of internal threads on connecting couplings shall be sufficient to accommodate length L6. Table 6Standard AWWA corporation stop inlet threads and corresponding internal threads for saddles Corporation Stop External Threads Internal Threads Nominal Size in. Threads per Inch Taper per Foot Measured Across Diameter in. Diameter at Small End Length L1 min in. Pitch Diameter at Large End in. Available Length for Corp. Stop Insertion min.* * On saddles, this is the minimum distance from the outer end of the thread to the water main. This distance shall not be greater than 2 in. so as not to exceed the available travel of drilling machines. Major in. Pitch in. Minor in. 1/2 141 3/4 0.8190.7620.7051 5/64 0.8481 1/16 5/8 141 3/4 1.0160.9590.9021 5/32 1.0551 1/16 3/4 141 3/4 1.1041.0470.9901 1/8 1.1451 1/16 1121 3/4 1.3321.2631.1981 3/16 1.3601 1/16 1 1/4 11 1/2 11.7281.6581.5881 3/8 1.7171 1/4 1 1/2 11 1/2 12.0041.9341.8641 1/2 2.0041 1/4 211 1/2 12.5772.5072.4371 17/32 2.5801 1/4 8AWWA C800-01 Copyright 2001 American Water Works Association, All Rights Reserved Figure 1Standard AWWA corporation stop inlet thread 4.4.4.2When specified as NPT, the thread for the inlet end of a corporation stop shall be the same as that used on American National taper pipe threads specified in ANSI/ASME B1.20.1. 4.4.4.3If the purchaser specifies NPT threads for the inlet end of corporation stops, extra threads shall be added at the large end of the corporation stop inlet. 4.4.4.4In gauging standard AWWA and NPT thread for corporation stop inlet threads, the thread is within tolerances when the gauge is within one full turn in either direction of the extreme end or face of the inlet of the stop, except as provided in Sec. 4.4.4.6 4.4.4.5All starting threads for the inlet end of a corporation stop shall be chamfered. 4.4.4.6Any plain extension beyond the chamfer on the inlet end of a corporation stop shall be in addition to the thread len