PE100

PE100 is a high-strength grade of polyethylene used for pressure piping. It denotes a material with a minimum required strength (MRS) of 10 MPa at 20°C, higher than earlier grades such as PE80. This higher strength allows thinner walls or higher pressure ratings, enabling cost savings and greater design flexibility. PE100 is widely used in potable water distribution, and in many regions also for gas distribution, industrial piping, and sewer networks, where long service life and corrosion resistance are valuable.

Properties include good chemical resistance, abrasion resistance, and ductility. It remains tough at low temperatures and performs well under repeated pressure changes. Continuous service temperatures are generally up to around 60°C, with design adjustments for higher temperatures. The long-term hydrostatic strength decreases with temperature, so engineers apply appropriate correction factors in design.

Manufacturing and joints: Pipes are produced by extrusion from HDPE resin and are joined by fusion-welding methods, notably butt fusion and electrofusion, which create leak-tight joints without seals.

Standards and grades: PE100 is defined by European and international standards for pressure piping, such as EN 1555 and EN 12201, and by the PE100+ Association, which promotes PE100 and higher-strength variants (PE100+). The PE100+ grades emphasize improved resistance to slow crack growth and longer service life.

Limitations: Ultraviolet light degrades unprotected PE; outdoor installations require UV-stabilized material or burial. Proper handling and installation require suitable equipment, and compatibility with certain solvents or high-temperature fluids should be checked.

Lifecycle: With proper design, installation, and burial, PE100 pipes typically provide service lives of several decades.