AWWA C303-08 Concrete Pressure Pipe, Bar-Wrapped, Steel-Cylinder Type (PDF)
SKU: STC_0070772-PDF
This standard describes the manufacture of concrete pressure pipe, reinforced with a steel cylinder that is helically wrapped with mild steel bar reinforcement, in sizes ranging from 10 in. through 72 in. (250 mm through 1,830 mm), inclusive, and for working pressures up to 400 psi (2,760 kPa). Larger pipe sizes and pipe accommodating higher pressures have been manufactured based on the concepts of this standard. With agreement by the purchaser and the manufacturer, pipe may be manufactured to larger sizes and for higher pressures than indicated herein. This standard does not include requirements for design, handling, delivering, laying, field testing, or disinfecting of pipe and fittings.
Description
Major revisions made to the standard in this edition include the following: tolerance allowance for cylinder to joint ring weld assembly was added (Sec. 4.6.4.2.7); fittings maximum circumferential stress under working pressure is now defined, also, a design guideline is now provided for bends having radii less than 2? times the nominal pipe diameter (Sec. 4.7.2.1); this section also provides guidelines for permissible reinforcement to increase the stiffness of fittings (Sec. 4.7.2.1); bar reinforcement wrap was added as an alternative to welded wire reinforcement (Sec. 4.7.2.3); and, a section requiring a quality assurance program w 4. as added (Sec. 5.3).