AWWA C Dimensions for Fabricated Steel Water Pipe Fittings. standard by American Water Works Association, 12/01/ View all product details. ANSI/AWWA C (Revision of ANSI/AWWA C) This document is an American Water Works Association (AWWA) standard. It is not a specification. AWWA C – Fabricated steel pipe – Download as PDF File .pdf), Text File .txt) or read online.
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The action becomes effective on the first day of the month following the month of Journal AWWA publication of the official notice. Deflection angles up to 5″ can be taken in welded lap joints using miter-cut c280 ends, provided that bell and spigot tolerances are maintained. Minimum dimensions for reducing tees and reducing crosses are stated in Table 1.
The optimum radius for a fabricated elbow based on these considerations is 2. Minimum dimensions for 90″ wyes are stated in Table 1. Tupac, Chair John H. Submittal of shop detail and assembly drawings. This radius is recommended as a standard for water transmission lines where awws requirements permit. The stipulations of this standard apply when this document has been referenced and then only t o dimensions for fabricated steel water pipe fittings.
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. This standard is intended to serve as a dimensional guide only. 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 Satyarthi, Baker Coupling Company Inc. For elbows in plant piping, where space is limited, a radius of less than 2.
A combination of standard miter wwwa and pulled joints may also be used. The following items should be covered in the purchaser’s specifications: Other angles from 90″to 30″ may be used. In ,lock-bar pipe was introduced and, by ,had nearly supplanted riveted pipe. For angle 0 less than 30″, use 30″ lateral wye plus an elbow. The AWWA standards usually c280 options that must be evaluated by the user of the standard. In certain applications, compound elbows and reducing elbows may be used.
Spigot ends may also be miter cut, provided that bell to spigot tolerances are maintained.
The purpose of this standard is to provide the minimum requirements for the dimensions of fabricated steel water pipe fittings. The Standards Committee on Steel Pipe, which developed this standard, had the following personnel at the time of approval: AWWA has no responsibility for the suitability or compatibility of the provisions of this standard to any. Number of pieces or c20 for elbows.
The revisions consisted aww the addition of an explanatory paragraph, changes in the awwwa for fittings for service in transmission and distribution mains, and clarification of the figures detailing the various fittings. 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. All dimensions for fittings in Table 1 of this standard are based on the nominal diameter being the actual outside diameter OD of the pipe.
For an angle 8 less than 30″, use 30″ lateral wye plus an elbow. It was approved as a “tentative” standard on July 14, Producers of goods made in conformity with awwwa 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.
AWWA C 结构钢制水工业管件_图文_百度文库
Lateral Less Than 30″ Addition of a foreword to provide the history of a standard and major revisions. This represents good practice that will assist in maintaining the roundness of pipe ends.
This standard has no applicable information for this section. The use of A W A standards is entirely voluntary. Until each optional feature awqa specified by the user, the product o r service is not fully defined.
Lining and coating required. The length of reducers L, is calcu- lated by the following formula.
AWWA C208 – Fabricated steel pipe fittings.pdf
Major revisions made to this standard c20 this edition include the following: See Figures 5 and 6 for geometric relationships. This American National Standard may be revised or withdrawn at any time. Refer to Figure 1C. Refer to Figure 1A. Use of This Standard The aforementioned guidelines for dimensioning fabricated steel pipe elbows represent good practice for water transmission mains.
As welding became more universal in pipeline construction and manufacturing, varying steel shapes able to accommodate pipeline hydraulics and locations became more prevalent. This edition approved June 17, Addition of reducing tees and deletion of smooth 90″ awaw category from Figure 1 and Table 1. Minimum dimensions for tees and crosses are stated es in Xwwa 1. Refer to Figure 4. Purchaser Options and Alternatives Minimum dimensions F, G, Z1, and H, can be calculated using the following formulas: