AWWA C208 PDF
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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Add additional length to these dimensions when necessary for flanged, mechanical couplings, or bell and spigot joints, or as aewa to meet other design conditions. The AWWA standards usually contain options that must be evaluated by the user of the 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 c028 fittings. Refer to Figures 1A and 1B. Refer to Awws lD, Case 1 [equal diameters]. Warren, Tetra Tech Inc. Expansion of Figure 3 to include sizes to in. This edition approved June 17, If necessary to enable the valve operator to clear the outside diameter of the run pipe, a flanged spool should be used to extend the connection as required.
90 Degree Mitred Bend, ASTM A WPB, DN, AWWA C – Landee Pipe Fitting
As welding became more universal in pipeline construction and manufacturing, awda steel shapes able to accommodate pipeline hydraulics and locations became more prevalent. Major revisions made to this standard in this edition include the following: Radius of elbows i.
Minimum dimensions for laterals of equal diameters and suitable for angle 6 of 30″ to 70″ are stated in Table 1. AWWA standards describe minimum requirements and do not contain all of the engineering and administrative information normally contained in specifications. Dimensions A and B can be calculated using the following formulas: Refer to Figure 4.
ANSI procedures awaw that action be taken to reaffirm, revise, or withdraw this standard no later than five years from the date of publication. The standard was approved without further revision on Jan. Refer to Figure 1E.
Minimum dimensions for reducing tees and reducing crosses are stated in Table 1. If the radius is less than 2. See Figures 5 and 6 for geometric relationships. Miter welds greater than These revisions include the following: Refer to Figure 1A.
The stipulations of this standard apply when this document has been referenced and then only t o dimensions for fabricated steel water pipe fittings. Revisions to the text were approved on June 21, ,and incorporated in the sixth and later printings.
The optimum radius for a fabricated elbow based on these considerations is 2. awwa
Revision of Table 1, deleting 4-in. 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.
AWWA C208-12 DIMENSIONS FOR FABRICATED STEEL WATER PIPE FITTINGS (43208-12)
H s o y This standard was first proposed in to provide standard dimensions for steel water pipe fittings. Use of This Standard. Reinforcement of fittings, which may include increased wall thickness, collars, wrapper plates, or crotch plates, is not covered in this standard.
Table 2 was deleted from the standard. Spigot ends may also be miter cut, provided that bell to spigot tolerances are maintained. For angles greater than 70″,use the dimension given for tees. 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.
Recommended dimensions are shown in Figure 3. Qf is a factor to be used in formulas to calculate design dimensions. This method of fabrication continued with improvements into the s. Deflection angles up to 5″ can be taken in welded butt joints using miter end cuts of one or both pipe ends, provided that the difference in circumference of the true circle and 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.
90 Degree Mitred Bend, ASTM A234 WPB, DN750, AWWA C208
In ,lock-bar pipe was introduced and, by ,had nearly supplanted riveted pipe. Wise, Canus Industries Inc. In their latest editions, these documents form a part of this standard to the extent specified within this standard.
Special handling, inspection, or testing requirements.
A W A publication of a standard does not constitute endorsement of any product or product type, nor does AWWA test, certify, or approve awwz product.
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. Steel pipe has been used for waterlines in the United States since the s. By the early s,both awqa and lock-bar methods were gradually phased out and welding dominated the pipe-making process.
AWWA C 结构钢制水工业管件_图文_百度文库
Many configurations of fittings are possible and alternatives to this standard may be agreed upon between the purchaser and manufacturer. Deletion of alternate Table 3. The pipe was first manufactured by rolling steel sheets or plates into shape and riveting the seams. 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. It is not a specification.
This radius is recommended as a standard for water transmission lines where space requirements permit. Accordingly, each user of this standard is responsible for determining that adwa standard’s provisions are suitable for and compatible with that user’s intended application. 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.