PE80

PE80 is a designation for a grade of polyethylene resin used in the manufacture of pressure-bearing piping systems. The name reflects its long-term hydrostatic strength, with PE80 corresponding to a minimum required strength of about 8 MPa (megapascals) at standard testing conditions. In the common resin family, PE63, PE80, and PE100 denote increasing levels of strength, with PE100 generally representing around 10 MPa. The exact performance for a given pipe also depends on wall thickness, diameter, temperature, and processing.

PE80 materials are used to produce pipes and fittings for a range of fluids, including potable water, irrigation, and some natural gas networks, subject to regional codes and standards. The choice between PE80 and stronger grades like PE100 is influenced by project requirements, cost, and expected service life. Pipes made from PE80 are often selected for installations where moderate pressure ratings and cost efficiency are priorities.

Manufacture and joining of PE80 products are mainly by extrusion, producing continuous pipes and molded or segmented fittings. Joints are typically created by fusion methods—butt fusion or electrofusion—and, in some cases, mechanical fittings. Proper surface preparation, cleanliness, and fusion control are essential to achieve reliable seals and long service life. PE materials offer good chemical resistance, impact flexibility at low temperatures, and ease of installation, contributing to rapid deployment in many piping projects.

Standards and regulation for PE80 piping vary by region but are generally covered by national and international plastics piping standards. These standards address resin composition, pipe and fitting dimensions, pressure ratings, installation practices, and testing requirements to ensure safety and performance in potable water, irrigation, and other applications.

See also: PE100, polyethylene piping, plastic piping standards.