Viega FostaPEX is the ideal solution for applications where expansion and overall appearance may be an issue. The Viega FostaPEX press tubing has a low coefficient of expansion compared to standard PEX products and, since the Viega PEX fitting system connects to all types of Viega PEX tubing, including FostaPEX, distributors need only one inventory and contractors need only one tool set.
The long-term strength and stability, as well as temperature and pressure ratings, allow the Viega FostaPEX to be used for potable water and hydronic radiant heating and cooling applications. Available in sizes of 1/2- to 1-inch, Viega FostaPEX exceeds all potable water certifications and standards.
The tubing is only compatible with ViegaPEX Press fittings and features form stability to keep its shape after its bent, an exterior aluminum layer, which acts as an oxygen barrier for heating applications, is color coded with a red or silver finish for easy identification of hot and cold lines.
Viega FostaPEX is an ideal option for exposed runs in a basement or under slab. It is rated at 100 psi at 180 F and 160 psi at 73 F. Viega FostaPEX is listed to ASTM standards F876/877 and ANSI/NSF standards 14 and 61.