3,218
edits
Line 4: | Line 4: | ||
==How fire | ==How fire safe valves works== | ||
There are two kind of leak that we want to avoid when a valve is exposed to a fire (before and after fire), leakage from the seat and leakage from the stem. There are also two methods to achieve a fire safe design, by using a fire-proof component or by using a non fire proof component but supported by a special design that will prevent leakage after the component is melt. | There are two kind of leak that we want to avoid when a valve is exposed to a fire (before and after fire), leakage from the seat and leakage from the stem. There are also two methods to achieve a fire safe design, by using a fire-proof component or by using a non fire proof component but supported by a special design that will prevent leakage after the component is melt. | ||