Daramar Special handling, inspection, or testing requirements. C certain applications, compound elbows and reducing elbows may be used. 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. Deletion of alternate Table 3. Qf is a factor to be used in formulas to calculate design dimensions.
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Samukinos Miter welds greater than Expansion of Figure 3 to include sizes to in. This edition approved June 17, 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 The use of A X A standards is entirely voluntary.
Tangent dimensions provided in Table 1 or calculated by the formulas are minimum dimensions for fittings with plain ends or beveled ends for field welding. The Standards Committee on Steel Pipe, which developed this standard, had the following personnel at the time of approval: 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.
Use of This Standard Addendum 2, was approved on June 4, In ,lock-bar pipe was introduced and, by ,had nearly supplanted riveted pipe. Warren, Tetra Tech Inc. Refer to Figure lD, Case 1 [equal diameters]. Additional length may be necessary for other types of joint connections, such as mechanical couplings, bells, spigots, flanges, etc.
Refer to Figure 1E. Some variations from this format may be found in a particular standard. Available records disclose installations of steel water pipe as early as American National Standard An American National Standard implies a consensus of those substantially concerned with its scope and provisions.
Deletion of Table 5. Number of pieces or segments for elbows. These revisions include the following: This radius is recommended as a standard for water transmission lines where space requirements permit. In small diameters 4-in. Refer to Figure 1A. Producers of goods made in conformity with a n American National Standard are encouraged to state on their own responsibility in advertising qwwa promotional materials or on tags or labels that the goods are produced in conformity with particular American National Standards.
Revision of Table 1, deleting 4-in. Minimum dimensions awwz tees and crosses are stated es in Table 1. In their latest editions, these documents form a part of this standard to the extent specified within this standard. This represents good practice to control welding stresses and dimensional tolerances. The AWWA standards usually contain options that must be evaluated by the user of the standard. Actual outside diameters may be larger than the nominal pipe diameter.
In practice, fittings are seldom provided as individual pieces as shown but are wwwa fabricated into full or special lengths of pipe or fabricated into assemblies, combining a number of fittings.
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 adwa, processes, or procedures not conforming to the standard; American National Standards are subject to periodic review, and users are cautioned to obtain the latest awa.
Table 2 was deleted from the standard. Dunham, Montgomery Watson, Bellevue, Wash. This standard is intended to serve as a dimensional guide only. AWWA has no responsibility for the suitability or compatibility of awww provisions of this standard to any. It is not intended to be a standard for wall thickness, pressure ratings, and structural or hydraulic design.
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.
Stoner, Consultant, North Plainfield, N. A combination of standard miter cuts and pulled joints may also be used. Most 10 Related.
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