Many people viewed the frontier as a "safety valve," meaning that when hard times came, the unemployed who cluttered the city pavements would merely move west, take up farming, and prosper. In truth,

A safety valve must always be sized and able to vent any source of steam so that the pressure within the protected apparatus cannot exceed the maximum allowable accumulated pressure (MAAP). This not o

safety valve, as not only can it lead to a continuous loss of system fluid, but leakage can also cause deterioration of the sealing faces, which can lead to premature lifting of the valve. Safety va

A safety valve is a valve mechanism for the automatic release of a substance from a boiler, pressure vessel, or other system when the pressure or temperature exceeds preset limits. There is a wide ra

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