
REHAU leverages its global expertise to deliver cutting-edge, dependable solutions for the biogas industry and beyond. As a privately held, family-owned company, the REHAU Group develops, manufactures, and markets polymer-based systems across construction, millwork, medical, and industrial sectors. Operating in over 160 locations with more than 13,000 employees worldwide, REHAU is driven by a passion for innovation and sustainability. Our teams are dedicated to engineering progress and enhancing lives—values that are reflected in our advanced piping technologies for biogas applications, including INSULPEX and RAUBIO, which help optimize heat transfer and system reliability in renewable energy projects.
REHAU is a global leader in polymer-based solutions, with over 70 years of innovation across construction, automotive, and industrial sectors. As a privately held company operating in more than 50 countries, REHAU is known for its commitment to quality, efficiency, and sustainability. In the biogas industry, REHAU offers advanced piping systems designed to optimize thermal energy transfer and system reliability. The INSULPEX pre-insulated PEXa piping system is engineered for efficient supply and return of fluid to the digester, minimizing energy loss and simplifying installation. Complementing this, the RAUBIO system features a continuous loop of PEX piping mounted on rails along the digester’s concrete wall, eliminating the need for internal fittings and joints—enhancing durability and reducing maintenance. Together, these solutions reflect REHAU’s expertise in delivering high-performance, integrated systems for renewable energy applications.
To learn more, visit INSULPEX | Mecanical & Plumbling | REHAU.

A system specifically designed for digesters, featuring PE-Xa pipes with SDR 13 for enhanced and safe heat transfer.
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Specially designed to minimize the heat loss of fluid through buried pipelines, REHAU pre-insulated PEXa piping is ideal for hydronic distribution in…
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