The Viega ProPress system for installing 304 stainless steel pipe in sizes 1/2″ to 2″ received UL certification of compliance for fire protection applications. Viega ProPress stainless steel fittings, with the FKM sealing element, are the only UL-approved stainless press fitting for fire protection systems. As with all Viega press systems, Viega ProPress stainless steel fittings can be prefabricated, producing a straight, clean installation that can be properly pitched back to the supply source. And the patented Smart Connect® feature, on all Viega ProPress systems, guarantees easy identification of unpressed connections. Viega ProPress for stainless uses unique press technology to secure pipe connections in less than seven seconds. The system, consisting of stainless steel pipe, valves and fittings, provides a faster, more reliable, flameless way to make water-tight and gas-tight stainless steel connections. Available in two high-quality stainless steel grades, 304 and 316, and with more than 600 fitting configurations, the Viega ProPress system for stainless steel is ideal for industrial and commercial installations. The Viega ProPress system can be installed wet or dry and can be adapted to existing piping system with adapters or flanges.