Draft Details

1.1 General

This Standard covers two types of polypropylene (PP) pipe and fittings – polypropylene random copolymer (PP-R) and polypropylene random copolymer with modified crystallinity and temperature resistance (PP-RCT) intended for use in pressure applications such as hot and cold potable water distribution systems, process piping, reclaimed/recycled water systems, water service, building supply lines, hydronic heating and cooling, and geothermal systems. Piping system components covered by this Standard are classified based on dimension ratio in sizes NPS-3/8 to NPS-28, and are joined using socket-type heat-fusion joints, saddle welding joints (fusion outlet), electrofusion joints, and butt fusion.

Piping covered by this Standard with minimum hydrostatic pressure ratings of 1105 kPa at 23 °C and 690 kPa at 82 °C are intended for use in plumbing applications. Pipes with different DRs can have higher or lower pressure ratings for other applications.

1.2 Requirements

This Standard specifies requirements for materials, dimensions, hydrostatic sustained pressure performance, longitudinal reversion, apparent tensile strength, oxidative resistance, and marking.