This standard covers the pressure classification of asbestos-cement pressure pipe
to use under various combinations of internal pressure (working and surge) and
external load (earth and superimposed live loads) in water distribution systems.
Combined loading curves depicting the relationship...
Back to C401-93(R98): AWWA Standard for the Selection of Asbestos-Cement Pressure Pipe, 4 In. Through 16 In. (100 mm Through 400 mm), for Water Distribution Systems
This standard covers the pressure classification of asbestos-cement pressure pipe
to use under various combinations of internal pressure (working and surge) and
external load (earth and superimposed live loads) in water distribution systems.
Combined loading curves depicting the relationship between internal pressure and
external load capabilities are included to expedite the selection of pipe class.
Appendix A contains a friction loss of head chart based on the Hazen-Williams
formula. Appendix B is a discussion of entrapped air. The major revisions in
this edition of ANSI/AWWA C401-93(R98) include the following: Sec. I.C,
Acceptance, was added to the foreword; Sec. II.C, Special Issues, was added
to the foreword, this section now includes a discussion on criteria for selecting
the type of asbestos-cement pipe, this section formerly appeared in the foreword
to ANSI/AWWA C400-80 (R86); Sec. III, Modification to Standard,
was added to the foreword; Sec. 1.4, Permeation, was added; the discussion on water
hammer and surge analysis (Sec. B.1 through Sec. B.6) was deleted from appendix
B and the title of the appendix revised to "Entrapped Air"; Appendix C,
Functional Power Requirements, was deleted in its entirety.