Patent ID: 7273064

Claim:
A temperature-sensitive safety valve assembly comprising: a first region for a first pressurised fluid, the region having a first outlet, a second region for a second pressurized fluid, the second region comprising a heat-sensitive sealing means, wherein the first pressurized fluid is different from the second pressurized fluid, a separating means arranged between the first region and the second region so as to prevent mixing of the first pressurized fluid and the second pressurized fluid, a valve between the first and second regions which is arranged to be actuated by the pressure of the second pressurized fluid in the second region against a biasing means to open the first outlet, wherein the heat-sensitive sealing means in the second region is arranged to fail at high temperature so to de-pressurise the second region, thereby actuating the valve to move under the biasing means to close the first outlet and seal the first region, and wherein the heat-sensitive sealing means is designed to shatter when exposed to the temperature of a fire.