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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Use of This Standard 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.

Many configurations of fittings are possible and alternatives to this standard may be agreed upon between the purchaser and manufacturer. Submittal of awwaa detail and assembly drawings. AWWA standards describe minimum requirements and do not contain all of the engineering and administrative information normally contained in specifications.

This American National Standard may be revised or withdrawn at any time. American National Standard An American National Standard implies a consensus of those substantially concerned with its scope and provisions.

AWWA C208 – Fabricated steel pipe fittings.pdf

awaa Steel pipe has been used for waterlines in the United States since the s. The following guidelines for dimensioning fabriReferring to Figure 2, 1. Reinforcement of fittings, which may include increased wall thickness, collars, wrapper plates, or crotch plates, is not covered in this standard.

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 purpose of this standard is to provide the minimum requirements for the dimensions of fabricated steel water pipe fittings.

The optimum radius for a fabricated elbow based on these considerations is 2. As welding became more universal in pipeline construction and manufacturing, varying steel shapes able to accommodate pipeline hydraulics and locations became more prevalent.


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 Accordingly, awsa user of this standard is responsible for determining that the standard’s provisions are suitable for and compatible with that user’s intended application. Refer to Figure 1C.


Expansion of Figure 3 to include sizes to in. Revisions in the text were approved on Dec. Deflection angles up to 5″ can be taken in welded butt joints using miter end cuts of one xwwa both pipe ends, provided that the difference in circumference of the true circle c20 the ellipse formed by the miter end cut does not result in a joint fit-up that would exceed the allowable plate edge offset see Figure 2A.

ANSI procedures require that action be taken to reaffirm, revise, or withdraw this standard no later than five years from the date of publication. Refer to Figures 1A and 1B.

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Minimum dimensions for laterals of equal diameters and suitable for angle 6 of 30″ to 70″ are stated in Table 1. By the early s,both riveted and lock-bar methods were gradually phased out and welding dominated the pipe-making process. Other angles from 90″to 30″ may be used.

Deletion of Table 5. Refer to Figure 4. It was approved as a “tentative” standard on July 14, Addendum 2, was approved on June 4, Deflection angles up to 5″ can be taken in welded lap joints using miter-cut bell ends, provided that bell and spigot tolerances are maintained.

Minimum dimension L, can be calculated using the following formulas: Qf is a factor to be used in formulas to calculate design dimensions. Actual outside diameters may be larger than the nominal pipe diameter.


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. This represents good d208 to control welding stresses and dimensional tolerances.

Spigot ends may also be miter cut, provided that bell to spigot tolerances are maintained. Recommended dimensions are shown in Figure awqa. This method of fabrication continued with improvements into the s. The stipulations of this standard apply when this document has been referenced and then only t o dimensions for fabricated steel water pipe fittings.

The following items should be covered in the purchaser’s specifications: Refer to Figure 1A.

Dimensions G, Go, and HL can be calculated for other outside diameters and a specific angle between run and outlet using the following formulas: In this procedure, the pipe end is miter cut, and then the bell is expanded square with the face of the miter cut see Figure 2B.

In ,lock-bar pipe was introduced and, by ,had nearly supplanted riveted pipe. A W A publication of a standard does not constitute endorsement aewa any product or product type, nor awa AWWA test, certify, or approve any product. This edition approved June 17, It is not a specification.


Minimum dimensions for tees and crosses are stated es in Table 1. Deletion of alternate Table 3. This represents good practice that will assist in maintaining the roundness of pipe ends. Add additional length to these dimensions when necessary awa flanged, mechanical couplings, or bell and spigot joints, or as needed to meet other design conditions.

Revision of Table 1, deleting 4-in.