Nazilkree Refer to Figure lD, Case 1 [equal diameters]. Spigot ends may also be miter cut, provided that bell to spigot tolerances are maintained. In any case of conflict, the requirements of this standard shall prevail. This represents good practice that will assist in maintaining the roundness of pipe ends. Awwwa length of awwq L, is calcu- lated by the following formula.

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This edition approved June 17, 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 o r service is not fully defined. A W A 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 A W A standards is entirely voluntary. AWWA standards are intended to represent a consensus of the water supply industry that. 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 a n 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 a n 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. This American National Standard may be revised or withdrawn at any time.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 information on all standards by calling or writing the American National Standards Institute, 25 W. 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.

Davenport, Chair R. Card, Brico Industries Inc. Satyarthi, Baker Coupling Company Inc. Shaddix, Smith-Blair Inc. Wagner, Consultant, St. Louis, Mo. The Standards Committee on Steel Pipe, which developed this standard, had the following personnel at the time of approval: George J.

Tupac, Chair John H. Bambei Jr. Laverne, Calif T. Not for Resale A. Brunzell, Brunzell Associates Ltd. Dunham, Montgomery Watson, Bellevue, Wash. Stoner, Consultant, North Plainfield, N. Tupac, G. Associates, Pittsburgh, Pa. Warren, Tetra Tech Inc.

Producer Members H. Wise, Canus Industries Inc. Some variations from this format may be found in a particular standard. A Background Special Issues Use of This Standard Purchaser Options and Alternatives B IV Modification to Standard Major Revisions Requirements Fittings Tangent-type Outlet Lateral Less Than 30" Computation Method and Formulas for Compound Elbows Steel pipe has been used for waterlines in the United States since the s.

With the development of the Bessemer process in and the open hearth process in ,steel, the strongest and most versatile refinement of iron, became available for water pipe.

Available records disclose installations of steel water pipe as early as The pipe was first manufactured by rolling steel sheets or plates into shape and riveting the seams. This method of fabrication continued with improvements into the s. In ,lock-bar pipe was introduced and, by ,had nearly supplanted riveted pipe. By the early s,both riveted and lock-bar methods were gradually phased out and welding dominated the pipe-making process. As welding became more universal in pipeline construction and manufacturing, varying steel shapes able to accommodate pipeline hydraulics and locations became more prevalent.

Over the years, rigid specifications have been developed and new product developments and improvements in manufacturing techniques and processes have been established to ensure the purchaser a product of high standards.

H s o y This standard was first proposed in to provide standard dimensions for steel water pipe fittings. It was approved as a "tentative" standard on July 14, Revisions in the text were approved on Dec. The revisions consisted of the addition of an explanatory paragraph, changes in the table for fittings for service in transmission and distribution mains, and clarification of the figures detailing the various fittings.

The standard was approved without further revision on Jan. Revisions to the text were approved on June 21, ,and incorporated in the sixth and later printings.

These revisions include the following: 1. Addition of a foreword to provide the history of a standard and major revisions. Revision of Table 1, deleting 4-in. Revision of Table 2. Expansion of Figure 3 to include sizes to in.

Deletion of Table 4. Deletion of alternate Table 3. Deletion of Table 5. Addition of reducing tees and deletion of smooth 90" elbow category from Figure 1 and Table 1. The information in Table 1 was changed from a tabular format to a formula format in order to ascertain dimensions for tees, crosses, wyes, laterals, and reducers. A factor, f, was introduced in the new Table 1 to facilitate the use of formulas for computing fitting dimensions and provided formulas for elbow layout to facilitate the design of elbows not tabulated.

Addendum 2, was approved on June 4, The addendum added a note of caution to Tables 2A through 2D concerning hoop tension concentration in elbows was with a radius of less than 2. The major revision was to clarify that the standard is a dimensional guide only and that design of fittings should be in accordance with applicable sections of AWWA Manual M Table 2 was deleted from the standard.

This standard has no applicable information for this section. Special Issues. Use of This Standard. AWWA has no responsibility for the suitability or compatibility of the provisions of this standard to any. Purchaser Options and Alternatives.

Type of fitting required i. Radius of elbows i. Number of pieces or segments for elbows. Design pressure and specifications for pipe to which the steel fitting will connect i. Type of end connection required i. Submittal of shop detail and assembly drawings. Special handling, inspection, or testing requirements.

Lining and coating required. Modification to Standard. Major Revisions. Major revisions made to this standard in this edition include the following: 1. Quincy Ave. Many configurations of fittings are possible and alternatives to this standard may be agreed upon between the purchaser and manufacturer.

The fitting dimensions shown in Figures 1, 2, 3, 4, and 6 and in Table 1 are the minimum dimensions for fittings with plain ends. In practice, fittings are seldom provided as individual pieces as shown but are shop fabricated into full or special lengths of pipe or fabricated into assemblies, combining a number of fittings.

This standard is intended to serve as a dimensional guide only.


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