Changes to CSA Z662 ‘Oil and Gas Pipeline Systems’ to Incorporate Higher Performance Plastic Pipe

Session 11B
3:50 pm

Rob Fox, Enbridge Gas Distribution

CSA Z662 is the Code for use of plastic pipe in Canadian oil and gas pipeline systems. This paper will give an overview of the recently approved revisions to CSA Z662-11 “Oil and Gas Pipeline Systems”, which will be published next year. These revisions include the following:

- RCP Requirements for PE pipe,
- MRS Design Equation and PE 100,
- HDB Design Factor of 0.45,
- Plus Performance PE materials (see Table below comparing maximum pressure ratings),
- CRS Methodology,
- Polyamide Materials and
- Reinforced Thermoplastic Pipe.

The paper will discuss the reasons why these revisions to incorporate higher performance plastic pipes were made to the CSA Z662 Code, and will serve as an introduction to several papers on the use of plastic piping for natural gas distribution in Canada that will be presented at PPXV.

Table: Maximum Operating Pressure (MOP) for HDPE SDR 11 Pipe – Gas Applications