Polypropylene (PP-R & PP-RCT) pipe and fittings for pressure applications
Scope:
Note: The scope for this NOI (originally published on June 20, 2023) was updated by the responsible SDO on February 4, 2025.
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.
Project need:
To update the current standard due to user experience/feedback/new technology (new edition). This proposed New Edition is being developed at the request of the B137 Technical Committee. It will provide the industry with up to date performance specifications for thermoplastic pressure piping. This will meet the strategic needs of the following key interests: a) ensuring that the latest innovative/technology/safety features are available for users, b) addressing needs of regulators by providing suitable requirements; and c) supporting certification bodies.
Note: The information provided above was obtained by the Standards Council of Canada (SCC) and is provided as part of a centralized, transparent notification system for new standards development. The system allows SCC-accredited Standards Development Organizations (SDOs), and members of the public, to be informed of new work in Canadian standards development, and allows SCC-accredited SDOs to identify and resolve potential duplication of standards and effort.
Individual SDOs are responsible for the content and accuracy of the information presented here. The text is presented in the language in which it was provided to SCC.