AWWA C905-10 PDF Download

The AWWA C905-10 standard provides guidelines for the use of PVC pressure pipe and fittings in water transmission and distribution systems.

The standard specifies the range of nominal diameters (14 in. through 48 in.) and the corresponding outside diameter dimensions in cast-iron-pipe-equivalent (CI) and steel-pipe-equivalent (IPS) units. It also outlines the various wall thickness dimension ratios (DRs), which range from 14 to 51.

The standard covers several aspects related to PVC water transmission pipe, including permeation, materials, pipe, fabricated fittings, joints, pressure-rating designations, quality-control records, plant inspection, handling, and packaging. For example, it emphasizes the need to prevent permeation of chemicals into the water supply, specifies the materials requirements for pipe and fittings, and provides guidelines for the design and installation of joints.

Additionally, the standard includes an appendix that offers an example of working-pressure rating. This appendix serves as a practical reference for determining the appropriate pressure ratings for different pipe sizes and DRs.