High density polyethylene (HDPE) piping systems have been used for municipal and industrial water applications for over 50 years. Within PPI's Building & Construction Division, HDPE pipes are used for ground source geothermal applications, also known as earth energy or geoexchange systems.
For other applications of HDPE piping systems, please refer to the webpages of PPI's other divisions.
HDPE is currently produced from compounds with pipe material designation codes of PE 3608 or PE 4710, and a color and ultraviolet stabilizer code of C or E, per ASTM D3350.
HDPE is available in both IPS (iron pipe size) and CTS (copper tube size) sizes. IPS sizes are more common in geothermal ground loop applications. HDPE tubing and pipe are produced in coils and straight lengths. Consult the specific HDPE manufacturer's literature and listings for appropriate pressure ratings.
High density polyethylene (HDPE) is a plastic resin made by the copolymerization of ethylene and a small amount of another hydrocarbon. The resulting base resin density, before additives or pigments, is greater than 0.941 g/cm.
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