The ULTRX® Rupture Disc is a scored, reverse acting rupture disc. It is a differential pressure relief device that provides an instantaneous full-open, non-reclosing design for protecting equipment, vessels and systems from an overpressure condition. The ULTRX® Rupture Disc has Continental Disc's patented precision controlled indentation to initiate reversal when the specified burst pressure is achieved, and a semicircular score to provide a clean, consistent opening pattern. The ULTRX® Rupture Disc excels in fully liquid systems as well as gaseous or partial gas/liquid systems. Full opening occurs in liquid or gaseous systems.