Pressure surge resistant rupture disk assembly

摘要

The present invention provides a pressure surge resistant rupture disk assembly adapted to be sealingly clamped across a pressurized fluid containing passageway. The assembly basically comprises first and second rupture members having predetermined rupture pressures, the second rupture member facing the pressurized fluid and having a predetermined rupture pressure equal to or lower than the rupture pressure of the first rupture member. At least one opening is provided in the second rupture member for allowing a restricted pressurized fluid flow therethrough.