Underground Service Line Valves and Fittings

Transcription

1 SM ANSI/AWWA C (Revision of ANSI/AWWA C800-05) The Authoritative Resource on Safe Water AWWA Standard Underground Service Line Valves and Fittings Effective date: Jan. 1, First edition approved by AWWA Board of Directors Sept. 1, This edition approved June 10, Approved by American National Standards Institute Oct. 30, West Quincy Avenue Advocacy Denver, CO Communications T Conferences Education and Training Science and Technology Sections

2 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 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 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. 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 satisfactory service. 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 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 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 manufacturing, marketing, purchasing, or using products, processes, or procedures not conforming 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 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 NOTICE: 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 withdraw this standard no later than five years from the date of ANSI approval. 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) , or ing info@ansi.org. ISBN-13, print: eisbn-13, electronic: ISBN-10, print: eisbn-10, electronic: 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 review purposes, without the written permission of the publisher. Copyright 2013 by American Water Works Association Printed in USA ii

3 Committee Personnel The AWWA Standards Committee on Water Service Line Fittings, which reviewed and approved this standard, had the following personnel at the time of approval: Savas C. Danos, Chair General Interest Members T. Arnbrister, Nisqually Tribe, Rainier, Wash. (AWWA) L.E. Beck, Hawaii Department of Water Supply, Hilo, Hawaii L.R. Faulkner, Lakewood, Colo. R.L. Gardner,* Standards Council Liaison, Wannacomet Water Company, Nantucket, Mass. J.W. Hellums, Booth Hellums and Associates LLC, Lake Charles, La. K.L. Mercer,* Standards Engineer Liaison, AWWA, Denver, Colo. R.A. Waggenspack, Owen & White Inc., Baton Rouge, La. Producer Members (AWWA) (AWWA) (AWWA) (AWWA) (AWWA) (AWWA) M. Anderson, Ford Meter Box Company Inc., Wabash, Ind. (AWWA) J.L. Daghe, A.Y. McDonald Manufacturing Company, Dubuque, Iowa L.W. Fleury, Mueller Group, Smithfield, R.I. D.W. Humes, Mueller Company, Decatur, Ill. T.J. Moulton, Emco Corporation, Mississauga, Ont. (AWWA) (AWWA) (AWWA) (AWWA) C. Shanks, Ford Meter Box Company Inc., Wabash, Ind. (AWWA) S. Tefft, A.Y. McDonald Manufacturing Company, Dubuque, Iowa (AWWA) User Members T.M. Bowen, Manchester Water Works, Manchester, N.H. S.C. Danos, Littleton Water Department, Littleton, Mass. R.J. Dudas, Orange County Utilities, Orlando, Fla. R.J. Krol, South Bend Water Works, South Bend, Ind. R.G. Sykes, East Bay Municipal Utility District, Oakland, Calif. A.S. Tong, East Bay Municipal Utility District, Oakland, Calif. (AWWA) (AWWA) (AWWA) (AWWA) (AWWA) (AWWA) * Liaison, nonvoting Alternate iii

4 This page intentionally blank.

5 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 I.B II History... vii Acceptance... viii Special Issues.... ix II.A Lead Fittings... ix III Use of This Standard... ix III.A Products Intended for Waterworks Applications... ix III.B Purchaser Options and Alternatives.... ix III.C Modification to Standard... x IV V Standard Major Revisions... x Comments... x 1 General 1.1 Scope Purpose Application References Definitions Requirements 4.1 Materials General Design Detailed Design End Connections Fabrication Permeation Verification 5.1 Inspection Testing Basis for Rejection Delivery 6.1 Marking Packing and Shipping Affidavit of Compliance Appendixes A Collected Standards for Service Line Materials B Field Testing C Installation Figures 1 Curb Valve Heads Standard AWWA Corporation Stop Inlet Thread Coupling Nut for Use With Flared Copper Service Tube, Types K and L Outlet End of Corporation Stop Showing Increased-size NPT External Threads and Internal Driving Threads Flared Fitting End Showing Threads for Use With Flared Copper Service Tube v

6 6 Outlet End of Corporation Stop Showing Special-Purpose Coupling Threads and Internal Driving Threads Meter Coupling Nut Meter Flange Tables 1 Maximum Drill Sizes for Installation of Corporation Stops in Service Clamps or Saddles With a Drilling Machine Maximum Overall Body Dimensions for Corporation Stops for Use With Tapping Machine Curb Valve Head Dimensions Fitting Thread for Use With Flared Copper Service Tube Coupling Nut for Use With Flared Copper Service Tube Corporation Stop Outlet Special- Purpose Coupling Threads Standard AWWA Corporation Stop Inlet Threads and Corresponding Internal Threads for Saddles Tapered External Iron Pipe (NPT) Threads for Outlet End of Corporation Stops Internal Driving Thread for Corporation Stops Meter Coupling Nut Meter Flanges A.1 Dimensions, Weights, and Tolerances in Diameter and Wall Thickness for Nominal or Standard Copper Water Tube Sizes A.2 Dimensions, Weights, and Tolerances for Standard Sizes of Seamless Red Brass Pipe A.3 Standard Weights and Dimensions of Welded and Seamless Steel Pipe vi

7 Foreword This foreword is for information only and is not a part of ANSI*/AWWA C800. I. Introduction. I.A. History. In 1929, the development of a standard for threads for underground service fittings was undertaken by the American Standards Association (ASA). In 1932, the subcommittee that had been appointed for the task asked to be discharged after it had submitted its proposed standards in the form of two drawings. No action was taken by ASA on these proposed standards. The American Water Works Association (AWWA) recognized the need for standardization of these threads and appointed a committee in 1940 to prepare a standard. The New England Water Works Association (NEWWA) also appointed a committee to prepare a standard for these threads. The AWWA and NEWWA committees cooperated closely in developing a tentative standard in This was approved as a standard by AWWA on Sept. 1, 1948, and by NEWWA on Sept. 14, Revisions to the standard were made effective Jan. 17, In July 1963, a committee was formed to revise C regarding the evaluation of types K and L copper tubing for water services. In the revision, published in 1966, threads representing current practice were established for those fittings generally used in the water utility field. Sizes 1 2 in. and 5 8 in. were added for inlet and outlet threads for fittings and couplings for use with flared copper service tubing. The 1966 revision introduced an appendix that was not part of the standard, but which listed standards for water service line materials. The appendix was provided for information only because the materials were covered by other standards. The appendix also contained specifications for copper water tubing, red brass pipe, cast-iron pipe, and steel pipe. In 1974, a standing committee was formed to revise and update C The committee recognized the need to expand the scope of this standard beyond being a standard covering only threads for underground service fittings. Previous versions of C800 described only the threads for fittings that were in common use in water distribution systems. Subsequently, the scope of the standard was changed to include performance standards for underground service line fittings as well as for the threads. The 1984 revision to C800 was approved by the AWWA Board of Directors on * American National Standards Institute, 25 West 43rd Street, Fourth Floor, New York, NY vii

8 Jan. 29, Subsequent revisions were approved on Jan. 1, 1990; Jan. 21, 2001; and Jan. 16, This revision was approved on June 10, I.B. 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. 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 (COSHEM). 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 requirements more stringent than those required by the state. To evaluate the health effects of products and drinking water additives from such products, state, provincial, and local agencies may use various references, including 1. An advisory program formerly administered by USEPA, Office of Drinking Water, discontinued on Apr. 7, Specific policies of the state, provincial, or local agency. 3. Two standards developed under the direction of NSF, NSF/ANSI 60, Drinking Water Treatment Chemicals Health Effects, and NSF/ANSI 61, Drinking Water System Components Health Effects. 4. 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 certifying products in accordance with NSF/ANSI 61. Individual states, provinces, or local agencies have authority to accept or accredit certification organizations within their jurisdiction. Accreditation of certification organizations may vary from jurisdiction to jurisdiction. Annex A, Toxicology Review and Evaluation 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 * NSF International, 789 N. Dixboro Rd., Ann Arbor, MI Water Research Foundation, 6666 W. Quincy Avenue, Denver, CO Persons outside the United States should contact the appropriate authority having jurisdiction. Both publications available from National Academy of Sciences, 500 Fifth St., N.W., Washington, DC viii

9 unspecified list of unregulated contaminants are based on toxicity testing guidelines (noncarcinogens) and risk characterization methodology (carcinogens). Use of Annex A procedures may not always be identical, depending on the certifier. ANSI/AWWA C800 does not address additives requirements. Users of this standard should consult the appropriate state, provincial, or local agency having jurisdic- 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. II.A. Special Issues. Lead Fittings. References to lead fittings have been removed from ANSI/ AWWA C800 and the attached appendixes. The AWWA Standards Department has available to users of ANSI/AWWA C800 copies of ANSI/AWWA C information that contains references to lead fittings. 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. Products Intended for Waterworks Applications. A variety of valves, fittings, and other water conveyance devices are available on the market for water service. For the user, it is important to distinguish between products designated plumbing style versus waterworks service style and to ensure the proper product is selected for the specific application. Waterworks products are designed and constructed for belowground installation. This helps ensure long-term performance under a variety of installation and service conditions. The specific materials established in AWWA C800 were selected to provide long-term performance and corrosion resistance from both internal and external sources. The user is cautioned that underground service line valves and fittings not compliant with AWWA C800 may result in unsatisfactory performance or failure of the product. When in doubt concerning product suitability, contact a waterworks manufacturer for assistance. III.B. Purchaser Options and Alternatives. The following information should be provided by the purchaser: 1. Standard used that is, ANSI/AWWA C800, Standard for Underground Service Line Valves and Fittings, of latest revision. 2. The purchaser should state whether compliance with NSF/ANSI 61, Drinking Water System Components Health Effects, is to be required. ix

10 3. The size and type of fitting or valve. 4. Quantity required. 5. Details of other federal, state or provincial, and local requirements. 6. Working pressures under which the valve or fitting will be operated after installation normal or high pressure (Sec. 4.2). 7. Minimum inside diameter of waterway through corporation stops (Sec ). 8. If meter setter spacing is other than shown to accommodate meter lengths listed in Table 10 or 11 (Sec ). 9. Type of inlet thread (Sec. 4.4). 10. Size and type of outlet thread (Sec. 4.4). 11. If meter flanges other than oval are required (Sec ). 12. Whether records of factory tests are to be provided (Sec ). 13. Description of special castings or patterns, if required. Special casting markings, if required, should be stated, including location of these markings (Sec. 6.1). 14. Whether an affidavit of compliance is to be provided (Sec. 6.3). III.C. Modification to Standard. Any modification of the provisions, definitions, or terminology in this standard must be provided by the purchaser. IV. Major Revisions. Major revisions made to the standard in this edition include the following: 1. Addition of Foreword, Section III.A, Products Intended for Waterworks Applications. 2. Revision of Sec. 5.3, Basis for Rejection. 3. Revision of Sec. 6.3, Affidavit of Compliance. V. Comments. If you have any comments or questions about this standard, please call AWWA Engineering and Technical Services at , FAX at , write to the department at 6666 West Quincy Avenue, Denver, CO , or at x

11 ANSI/AWWA C (Revision of ANSI/AWWA C800-05) The Authoritative Resource on Safe Water Sec. 1.1 AWWA Standard Underground Service Line Valves and Fittings SECTION 1: GENERAL This standard covers valves, fittings, service saddles, and meter setters for use in service line from the main through the meter valve or meter-setting appurtenance. Valves, fittings, and meter setters described in this standard include 1 2 in. (12.5 mm) through 2 in. (50.8 mm). Service saddles described have outlet Scope sizes 1 2 in. (12.5 mm) through 2 in. (50.8 mm) and fit mains of 2 in. (50.8 mm) through 12 in. (304.8 mm). Valves include corporation stops and curb stops. Fittings include various types of couplings and adapters. Service saddles include various types of devices circumferentially attached to the main. Meter setters include various configurations of copper tubing, valves, and fittings for the holding of 5 8-in. ( mm) through 2-in. (50.8-mm) meters Installation. The performance of products depends on proper installation. The purchaser must follow instructions supplied by or available from the manufacturer. If these instructions are not available, good installation practices shall be followed. 1

12 2 AWWA C Sec. 1.2 Sec. 1.3 Purpose The purpose of this standard is to provide the minimum requirements for underground service line valves and fittings, including materials, design, inspection, and delivery. Application This standard or sections of this standard can be referenced in specifications for purchasing and receiving underground service line valves and fittings. The stipulations apply when this document has been referenced and then only to underground service line valves and fittings. SECTION 2: REFERENCES This standard references the following documents. In their latest editions, they form a part of this standard to the extent specified within this standard. In any case of conflict, the requirements of this standard shall prevail. ASME* B1.1 Unified Inch Screw Threads, UN and UNR Thread Form. ASME B Pipe Threads, Inch, General Purpose. ASME B Dryseal Pipe Threads, Inch. ASME B16.18 Cast Copper Alloy Solder Joint Pressure Fittings. ASTM A536 Standard Specification for Ductile-Iron Castings. ASTM A703 Standard Specifications for Steel Castings, General Requirements, for Pressure Coating Parts. (Metric). ASTM B88 Standard Specification for Seamless Copper Water Tube. ASTM B88M Standard Specification for Seamless Copper Water Tube ASTM B584 Standard Specification for Copper Alloy Sand Castings for General Applications. SECTION 3: DEFINITIONS The following definitions shall apply in this standard: 1. Adapter: A fitting used to connect pipe, tubing, or other fittings with differing characteristics, such as sizes, diameters, or material type. * American Society of Mechanical Engineers, Three Park Avenue, New York, NY ASTM International, 100 Barr Harbor Dr., West Conshohocken, PA

13 UNDERGROUND SERVICE LINE VALVES AND FITTINGS 3 2. Boss: The outlet protrusion of a service saddle that contains internal threads for the attachment of a valve, fitting, or a pipe. 3. Chamfer: A bevel made on the end of a thread to facilitate thread engagement. 4. Corporation stop (corporation valves): A valve attached to the water main to start a service connection that is used to interrupt flow during installation or maintenance of the service line. This valve is frequently installed while the main is under pressure. 5. Coupling: A fitting for connecting two pipe or tubing sections together. 6. Curb stop (curb valves): A valve installed in the water service line and accessible for operation from the surface of the ground for routinely interrupting flow through the service line. 7. Driving thread: A thread installed on the outlet end of corporation stops and used to hold the valve during installation. 8. Dryseal: A type of pipe thread described in ASME B Dryseal pipe threads are based on the USA (American) pipe thread; however, they differ from the USA (American) pipe thread in that they are designed to seal pressuretight joints without the need for sealing compounds. 9. Fitting: A part used to connect piping or tubing. 10. Inlet: The opening in a valve or fitting through which flow from the water main enters the valve or fitting. 11. Manufacturer: The party that manufactures, fabricates, or produces materials or products. 12. Meter setter: A configuration of tubing, valves, and fittings that provide for the retention of a water meter. Tail pieces are not included. 13. Multipurpose or dual purpose: A connecting design that combines flared and female iron pipe into one fitting. 14. NPS: Nominal Pipe Size, the designation of a pipe based on the approximate size of its inside diameter. 15. NPT: National Pipe Thread, as specified in ASME B Outlet: The opening in a valve or fitting through which flow from the water main leaves the valve or fitting. 17. Purchaser: The person, company, or organization that purchases any materials or work to be performed. 18. Service line check valve: A 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.

14 4 AWWA C Service saddle: A fitting that attaches circumferentially to a pipe to provide for attachment of a corporation stop (valve), service fitting, or service line pipe. 20. Supplier: The party that supplies materials or services. A supplier may or may not be the manufacturer. SECTION 4: REQUIREMENTS Sec. 4.1 Sec. 4.2 Materials General. Materials shall comply with the requirements of the Safe Drinking Water Act or other federal regulations as applicable Castings. Materials in contact with potable water shall be specified by the purchaser and be made from copper alloy CDA* No. C83600 or copper alloy CDA No. C89520, in accordance with the chemical and mechanical requirements of ASTM B584; or copper alloy CDA No. C Service saddle cast materials can include ductile iron, in accordance with ASTM A395 or ASTM A536, alloy or ; and stainless steel, in accordance with ASTM A703, Casting Designation CF8 (18-8) Component parts. Component parts such as fasteners, seals, and packing may be of other materials selected for adequate endurance, corrosion resistance, and strength Fabrications. Stainless-steel 18-8 type (304, 304L, or 316) and mild steel with a minimum of 25,000 psi yield strength shall be used for construction of fabricated service saddles. General Design Valves, fittings, service saddles, and meter setters described in this standard shall be adequate for the purpose intended and shall be convenient to install, use, and operate. Valves, fittings, service saddles, meter setters, 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 conformance with Sec Pressure class. The purchaser may specify high-pressure or normalpressure valves and fittings. Use of valves and fittings above rated pressure must * Copper Development Association Inc., 260 Madison Ave., New York, NY

15 Sec. 4.3 UNDERGROUND SERVICE LINE VALVES AND FITTINGS 5 be at the risk of the user and authorized specifically by the manufacturer. Service saddles, fittings, and meter setters shall be for high-pressure, as defined in Sec Normal pressure. Normal-pressure service line valves and fittings shall be suitable for use with water at 100 F (38 C) 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 High pressure. High-pressure service line valves, fittings, service saddles, and meter setters shall be suitable for use with water at 100 F (38 C) and 150 psig (1,050 kpa). Detailed Design Dimensions of corporation stops. Because corporation stops are frequently used or installed with drilling or tapping machines, certain internal and external size limitations are required for their proper use Minimum inside diameter. The minimum inside diameter of the waterway through a corporation stop shall be large enough to accommodate the drill sizes shown in Table Overall body dimensions. For corporation stop to be installed by a tapping machine, overall body dimensions shall conform with the dimensions listed in Table Curb stops. Curb stops may be of an angle design or straightthrough design and shall provide a drip-tight shutoff in the closed position. The stop head shall be of the tee design or flat design. Table 1 Maximum drill sizes for installation of corporation stops in service clamps or saddles with a drilling machine Maximum Drill Size Corporation Stop Size Corporation Stop With AWWA Thread Inlet Corporation Stop With NPT Thread Inlet

16 6 AWWA C Table 2 machine Maximum overall body dimensions for corporation stops for use with tapping Corporation Stop Size Curb valve operating heads. Buried curb valves are normally provided with a curb box positioned above the valve. This box provides access for engagement of a shutoff rod to the head of the valve or to the end of a stationary rod. The shutoff rod opening must be compatible with the end of the stationary rod or valve head. Dimensional requirements for the head of valves to be compatible with shutoff rods or stationary rod attachment shall comply with Figure 1 and Table Service 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 conform 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.* Maximum Radius Minimum inside diameter. The flow passage through the service saddle outlet shall be large enough to accommodate the drill size shown in Table Overall outlet boss height. Minimum distance from the outside main surface to the end of the threaded outlet boss on the service saddle shall be as shown in Table 7 and shall not exceed 2 in. (50.8 mm). The minimum distance is from the outer end of the outlet boss to the water main Main size versus outlet size. Service saddles with a 2-in. (50.8-mm) outlet shall not be used on a 2-in. (50.8-mm) main. Maximum Length (less nut) * The materials used to produce service saddles are not limited to the alloys listed in Sec. 4.1.

17 UNDERGROUND SERVICE LINE VALVES AND FITTINGS 7 A A B B Pipe materials. Service saddles are designed for use on a variety B Measured at the Base of the Cap Figure 1 Curb valve heads Table 3 D of pipe materials. Purchasers should consult the pipe and saddle manufacturers guidelines for recommendations on service saddles that are to be used on specific pipe materials.* (1) For Stationary Rod Attachment and Operation Curb valve head dimensions C Diameter E (2) For Shutoff Rod Operation Valve Size A B C D E F 1 2 to max max. 0.22/ / min min to max max. 0.23/ / min min Component parts. Component parts of service saddles shall be designed to minimize galvanic corrosion. The purchaser must specify materials that are properly suited to perform well in local soil conditions Straps. Straps for service saddles shall be designed so that the width and material is compatible with the pipe application Seals. The seals used with service saddles shall be attached to the outlet portion prior to shipment in a ready-to-use condition. Seal materials shall be F * This is especially true for plastic pipe.

18 8 AWWA C Sec. 4.4 suitable for the intended purpose and water supply service with ph ranging from 5.5 to Service 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 Service 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 Meter setters. Meter setters can be of various designs. They normally include copper tubing soldered to a machined brass casting. The tubing is bent to various configurations to accommodate the described height and position of the meter it is to hold. The machined brass casting shall have its inlet machined to attach to the service line by compression, flare, multipurpose, or iron pipe thread connections. A similar selection of connections shall be provided on the outlet of the machined brass casting. The connection to the meter is provided by meter nuts, meter flanges, meter valves, or check valves attached to the copper tube portion of the meter setter. The meter setter shall have a spacing provided to accommodate the meter lengths listed in Table 10 or 11. End Connections This section describes the threads and other details of the threaded connections used on products described in this standard Straight threads. Straight threads for flared copper connections shall be in accordance with ASME B1.1 and as shown in Tables 4, 5, and Flared 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 Tapered threads. Tapered threads other than the inlet thread of corporation stops shall conform to ASME B Special thread consideration Standard AWWA corporation valve inlet and service saddle threads shall conform to dimensions given in Table 7. Also see Figure 2.

19 UNDERGROUND SERVICE LINE VALVES AND FITTINGS 9 Table 4 Nominal Size Fitting thread for use with flared copper service tube* Threads per Inch Major Pitch Minor Diameter Diameter Tolerance Diameter Tolerance (max.) *See ASTM B88, B88M, and Sec. A.2 of appendix A attached to this standard. Table 5 Length L (min.) Nominal Size Coupling nut for use with flared copper service tube* Threads per Inch Major Diameter (min.) Diameter Pitch Tolerance Minor Diameter (max.) Length L 2 Diameter Tolerance (min.) (max.) *See ASTM B88, B88M, and Sec. A.2 of appendix A attached to this standard. This thread is also for all internal threads in fittings used with external threads as shown in Figure 3. Table 6 Corporation stop outlet special-purpose coupling threads* Corporation Stop Outlet External Threads Nominal Size Threads per Inch Major Diameter Internal Threads of Connecting Coupling Length Pitch Diameter Pitch Diameter L 6 (min.) Minor (max.) (min.) Diameter (max.) (min.) *This thread is shown in Figure 6. The depth of internal threads on connecting coupling shall be sufficient to accommodate length L 6.

20 10 AWWA C Table 7 Standard AWWA corporation stop inlet threads and corresponding internal threads for saddles Corporation Stop External Threads Diameter at Small End Internal Threads Nominal Size Threads Per Inch Taper/Ft (Measured Across Diameter) Major Pitch Minor Length L 1 (min.) Pitch Diameter at Large End Available Length for Corp. Stop Insertion (min.)* Min. Full Thread Length *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. Figure 2 Standard AWWA corporation stop inlet thread When specified as NPT, the thread form for the inlet end of a corporation stop shall be the same as that used on American National taper pipe threads specified in ASME B If 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.

21 UNDERGROUND SERVICE LINE VALVES AND FITTINGS In gauging standard AWWA and NPT thread for corporation stop inlet threads or service saddle outlet 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 or service saddle, except as provided in Sec Starting threads for the inlet end of a corporation stop shall be chamfered Any plain extension beyond the chamfer on the inlet end of a corporation stop shall be in addition to the thread length L 1, shown in Figure 2 and dimensioned in Table Internal threads for connection Internal threads for connecting the corporation stop inlet threads to the pipe or service saddle shall be either AWWA standard threads or NPT threads, as specified by the purchaser Couplings having internal threads for connection to corporation stops having flared copper connection threads shall conform to the applicable dimensions in Table 5 and Figure Outlet external threads Corporation-stop-outlet external threads shall conform to ASME B and be sized in accordance with Table 8. Also see Figure Corporation-stop-outlet external threads for use with flared copper tubing shall conform to Table 4 and Figure 5. Figure 3 Coupling nut for use with flared copper service tube, types K and L Figure 4 Outlet end of corporation stop showing increased-size NPT external threads and internal driving threads

22 12 AWWA C Tapered external iron pipe (NPT) threads for outlet end of corporation stops Figure 5 Flared fitting end showing threads for use with flared copper service tube (Minimum length L is from Table 4) Table 8 Corporation Stop Size NPT Threads Same Size as Corporation Stop NPT Thread Size Figure 6 Outlet end of corporation stop showing special-purpose coupling threads and internal driving threads Increased-Size NPT Threads* Available Length Corporation Stop Insertion (min.) Min. Thread Length *This corporation stop shall have internal driving threads conforming to Table 9 and Figure 4. On saddles, this is the minimum distance from the outer end of the thread to the water main outside diameter. This distance shall not be greater than 2 in. so as not to exceed the available travel of drilling machines. Length is from ASME B and is L 1 + L 3 = hand-tight thread makeup and L 3 = wrench thread makeup rounded to the nearest two decimal number.

23 UNDERGROUND SERVICE LINE VALVES AND FITTINGS 13 Table 9 Internal driving thread for corporation stops* Pitch Minor Nominal Size Threads per Inch Major Diameter Diameter Tolerance Diameter Tolerance Length L 3 (min.) *This internal driving thread is commonly used on several different types of corporation stop. See Figures 4 and 6. Table 10 Meter coupling nut Meter Size Meter Length Nominal Thread Size Coupling Nuts Pitch Diameter Min. Max SR Figure 7 Meter coupling nut

24 14 AWWA C Corporation-stop-outlet external special-purpose coupling threads shall conform to Table 6. Also see Figure Coupling nuts. Fittings connecting to special-purpose coupling threads shall have internal threads conforming to the dimensions in Table Driving threads. When specified by the purchaser or when standard with the manufacturer, the corporation stop shall have outlet ends provided with internal driving threads in accordance with Table 9. Also see Figures 4 and 6. These threads attach to tools used during corporation-stop installation Other connections. Compression connections, copper tube flare connections, and swivel connections shall be designed to provide a seal and retain water service pipe or the tube without slippage at a working pressure of 150 psig (1,050 kpa). B Table 11 Meter flanges Solder ends for copper tube. Solder ends shall conform to ASME Meter coupling nut. The nut on the meter connecting ends of meter setters, meter valves, or meter fittings, which has an inside thread that engages the outside thread on the end of the meter, is specified in Table 10. Also see Figure Meter flanges. Connections for 11 2-in. (38.1-mm) and 2-in. (50.8-mm) NPS meters shall be oval flanged on both ends unless otherwise specified. Flanges shall be faced and drilled. The drilling shall be on the horizontal axis; the number of bolt holes and the diameters of the bolt holes and bolt circle shall be as listed for oval companion flanges in Table 11. Also see Figure 8. Minimum Flange Thickness at Bolt Hole Nominal Meter Size (in. NPS) Meter Length Bolt Hole Circle Diameter * Number of Bolt Holes Bolt Hole Diameter For Flange on Meter Valves For Flange With Female Threads 11 2 oval flange (screw) 2 oval flange round flange (screw) *Oval holes are acceptable on 2-in. flanges.

25 UNDERGROUND SERVICE LINE VALVES AND FITTINGS 15 Figure 8 Meter flange Sec. 4.5 Sec. 4.6 Fabrication Workmanship. Valves, fittings, service saddles, and meter setters shall be free of metal chips and filings in the waterway. Lubricated valves shall be free of excess lubricants in the waterway. Castings shall be clean and sound and without defects that could impair their service. Permeation The selection of materials is critical for potable water, wastewater, and reclaimed water service and distribution piping in locations where there is likelihood the pipe will be exposed to significant concentrations of pollutants composed of low-molecular-weight petroleum products or organic solvents or their vapors. Documented research has shown that pipe materials (such as polyethylene and polyvinyl chloride) and elastomers, such as those used in jointing gaskets and packing glands, are subject to permeation by low-molecular-weight organic solvents or petroleum products. If a potable water, wastewater, or reclaimed water pipe must pass through such a contaminated area or an area subject to contamination, consult with the manufacturer regarding permeation of pipe walls, jointing material, and so on, before selecting materials for use in that area. SECTION 5: VERIFICATION Sec. 5.1 Inspection All work according to this standard is subject to inspection and approval by the purchaser.

26 16 AWWA C Sec. 5.2 Sec. 5.3 Sec. 6.1 Sec. 6.2 Sec. 6.3 Testing A purchaser who intends to use or test service line valves, fittings, service saddles, and meter setters at pressures in excess of those stated in this standard should consult the manufacturer in advance Factory tests. The manufacturer shall factory-test valves, fittings, service saddles, and meter setters to meet the pressure requirements as outlined in Sec and Sec Service saddles are tested for casting integrity between seal and outlet surface. The purchaser may request copies of factory tests. Basis for Rejection Material not complying with the requirements of this standard and the purchaser s documents may be rejected. Repairs, replacements, and retesting shall be accomplished in accordance with the purchaser s documents. SECTION 6: Marking DELIVERY The manufacturer s name or trademark shall appear on the body of valves and fittings. When appropriate and possible, it is recommended that markings on valves also include size, pressure rating, and direction of flow. The pressure rating shall be marked on high-pressure service valves as defined in this standard. Service saddles shall have the manufacturer s name or trademark and outside diameter range or pipe designation marked on them. The type of outlet size and thread on service saddles shall be identified. Packing and Shipping Valves, fittings, service saddles, and meter setters shall be complete and ready to install when shipped. The manufacturer shall use care in preparing them for shipment to avoid damage during handling or transit. Affidavit of Compliance The purchaser may require an affidavit from the manufacturer or supplier stating that the material provided complies with all applicable requirements of this standard.

27 APPENDIX A Collected Standards for Service Line Materials This appendix is for information only and is not a part of ANSI/AWWA C800. Sec. A.2.1 Sec. A.2.2 Sec. A.2.3 The following standards for various types of service line materials are included for reference. The suitability of the materials referenced for any particular application must be determined by the user. SECTION A.1: MATERIALS COVERED References included in this appendix describe the following materials: Copper water tube (Sec. A.2) Red brass pipe (Sec. A.3) Steel pipe (Sec. A.4) Plastic pipe and tube (Sec. A.5) SECTION A.2: COPPER WATER TUBE Scope This reference describes seamless copper tubing suitable for underground water services. Tube is designated as type K and type L. Standard Specifications This material shall be supplied in conformance with ASTM* B88 Standard Specification for Seamless Copper Water Tube, type K or type L; or ASTM B88M Standard Specification for Seamless Copper Water Tube (Metric), type A or type B, as designated. Dimensions For reference, Table A.1 lists the dimensions derived from ASTM B88 and ASTM B88M. * ASTM International, 100 Barr Harbor Dr., West Conshohocken, PA

28 18 AWWA C Table A.1 Dimensions, weights, and tolerances in diameter and wall thickness for nominal or standard copper water tube sizes Nominal or Standard Size Outside Diameter Average Outside Diameter* Tolerance SECTION A.3: RED BRASS PIPE Annealed Drawn Nominal Wall Thickness and Tolerances Type K (A) Wall Thickness Tolerance Type L (B) Wall Thickness Tolerance Theoretical Weight (lb/ft) Type K (A) Type L (B) Source: Extracted from Table 4 ASTM/ANSI B88 Standard Specification for Seamless Copper Water Tube; and Table 4. See ASTM/ANSI B88M Standard Specification for Seamless Copper Water Tube (Metric) for metric dimensions, weights, and tolerances. NOTE: Tolerances are plus and minus except as otherwise indicated. *The average outside diameter of a tube is the average of the maximum and minimum outside diameter, as determined at any one cross section of the tube. Maximum deviation at any one point. Sec. A.3.1 Sec. A.3.2 Sec. A.3.3 Scope This reference describes seamless red brass pipe suitable for use in water service lines and plumbing. Standard Specifications The pipe shall be supplied in conformance with ASTM B43 Standard Specification for Seamless Red Brass Pipe, Standard Sizes. Dimensions For reference, Table A.2 lists the dimensions derived from ASTM B43.

29 UNDERGROUND SERVICE LINE VALVES AND FITTINGS 19 Table A.2 Standard Pipe- Size Dimensions, weights, and tolerances for standard sizes of seamless red brass pipe Nominal Outside Diameter Average Outside Diameter Tolerances* (All Minus) Nominal Wall Thickness Tolerance Regular Theoretical Weight (lb/ft) Extra Strong Source: Extracted from Table 1, ASTM/ANSI B43 Specification for Seamless Red Brass Pipe, Standard Sizes. NOTE: Tolerances are plus and minus except as otherwise indicated. *The average outside diameter of a tube is the average of the maximum and minimum outside diameters as determined at any one cross section of the tube. Maximum deviation at any one point. Sec. A.4.1 SECTION A.4: STEEL PIPE Scope These specifications describe the supplying of steel pipe, either plain or galvanized, for use in underground water service lines.

30 20 AWWA C Table A.3 Standard weights and dimensions of welded and seamless steel pipe Schedule 40 Standard-Weight Pipe Schedule 80 Extra-Strong Pipe Double-Extra-Strong Pipe NPS Designator Outside Diameter Threads per Inch Wall Thickness Nominal Weight in lb/ft Plain End Threaded Wall Thickness Nominal Weight per Foot Plain End (lb) Wall Thickness Nominal Weight per Foot Plain End (lb) Sec. A.4.2 Sec. A.4.3 Standard Specifications Source: Extracted from Tables X2.2, X2.3, and X3.1 of ASTM A53, Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless. This material shall be supplied in conformance with ASTM A53/A53M Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated Welded and Seamless. Dimensions For reference, Table A.3 lists the dimensions derived from ASTM A53/A53M. SECTION A.5: PLASTIC PIPE AND TUBE Sec. A.5.1 Sec. A.5.2 Scope The following documents describe plastic pipe and tubing commonly used for underground water service lines. Standard Specifications The following standards specifically describe this type of pipe and tubing: ANSI/AWWA C901 Polyethylene (PE) Pressure Pipe and Tubing, 1 2 In. (13 mm) Through 3 In. (76 mm), for Water Service.

31 UNDERGROUND SERVICE LINE VALVES AND FITTINGS 21 ANSI/AWWA C903 Polyethylene-Aluminum-Polyethylene and Crosslinked Polyethylene-Aluminum-Cross-linked Polyethylene Composite Pressure Pipes, ½ In. (12 mm) Through 2 In. (50 mm), for Water Service. ANSI/AWWA C904 Cross-Linked Polyethylene (PEX) Pressure Pipes, 1 2 In. (12 mm) Through 3 In. (76 mm) for Water Service. ASTM D1785 Standard Specification for Poly (Vinyl Chloride) (PVC) Plastic Pipe, Schedules 40, 80, and 120. ASTM D2239 Standard Specification for Polyethylene (PE) Plastic Pipe (SIDR-PR) Based on Controlled Inside Diameter. ASTM D2241 Standard Specification for Poly (Vinyl Chloride) (PVC) Pressure-Rated Pipe (SDR Series). ASTM D2447 Standard Specification for Polyethylene (PE) Plastic Pipe, Schedules 40 and 80 Based on Outside Diameter. ASTM D2466 Standard Specification for Poly (Vinyl Chloride) (PVC) Plastic Pipe Fittings, Schedule 40. ASTM D2467 Standard Specification for Poly (Vinyl Chloride) (PVC) Plastic Pipe Fittings, Schedule 80. ASTM D2609 Standard Specification for Plastic Insert Fittings for Polyethylene (PE) Plastic Pipe. ASTM D2683 Standard Specification for Socket-Type Polyethylene Fittings for Outside Diameter-Controlled Polyethylene Pipe and Tubing (Rev. A). ASTM D2737 Standard Specification for Polyethylene (PE) Plastic Tubing. ASTM D3035 Standard Specification for Polyethylene (PE) Plastic Pipe (SDR-PR) Based on Controlled Outside Diameter. ASTM D3261 Standard Specification for Butt Heat Fusion Polyethylene (PE) Plastic Fittings for Polyethylene (PE) Plastic Pipe and Tubing. Tubing. ASTM F876 Standard Specification for Crosslinked Polyethylene (PEX)

32 This page intentionally blank.

33 APPENDIX B Field Testing This appendix is for information only and is not a part of ANSI/AWWA C800. Should purchasers choose to conduct field tests, the following recommenda- tions are available for general information. SECTION B.1: FIELD TESTS Field tests by the purchaser shall be in accordance with the pressures specified in Sec , as appropriate. External leakage through the valve body is not allowed. During testing of ground key stops, the outlet may be capped to eliminate leakage through the stop s closed port opening. Test pressures shall not exceed 150 percent of the maximum working pressure specified in Sec and Sec It is recommended that stop outlets be capped and tested in the open position. When testing a water main, if capping the corporation stop is impractical, the recommended alternative is to test to the curb stop with the corporation stop in the open position. Test pressures on service saddles for attachment to plastic pipe should be limited to 150 percent of the lower-rated component. Service line pressure testing should be performed prior to backfilling to facilitate leak detection and repair. 23

34 This page intentionally blank.

35 APPENDIX C Installation This appendix is for information only and is not a part of ANSI/AWWA C800. Should purchasers choose to conduct field tests, the following recommenda- tions are available for general information. SECTION C.1: INSTALLATION REQUIREMENTS For installing corporation and curb stops, the following recommendations are available for general information. The manufacturer s installation instructions should be followed for best performance. Use a smooth-jawed adjustable wrench that fully and evenly engages the stop wrenching flats. Loose-fitting wrenches and pipe wrenches may distort the stop and result in leakage. Place the wrench only on the stop body wrench flats. Do not use the rounded areas of the stop body for tightening into the main or saddle. Wrenching on other areas of the body may distort the valve and result in leakage. When connecting the outlet service line, always use two wrenches to make the connection. Use one wrench to support the corporation stop and/or curb stop and the other wrench to tighten the service connection. Service line pressure testing should be performed prior to backfilling to facilitate leak detection and repair. Backfill and compact soil carefully around the corporation stop, curb stop, and service line to prevent ground settling and damage to the valve or service line. 25

36 This page intentionally blank.

37 This page intentionally blank.

38 AWWA is the authoritative resource for knowledge, information, and advocacy to improve the quality and supply of water in North America and beyond. AWWA is the largest organization of water professionals in the world. AWWA advances public health, safety, and welfare by uniting the efforts of the full spectrum of the entire water community. Through our collective strength, we become better stewards of water for the greatest good of people and the environment. 1P 2.1M (12/12) FM Printed on Recycled Paper