Cashco, Inc.

Emergency Vents

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The 8900 Series manway pressure and pressure / vacuum relief vents provide emergency pressure relief beyond that furnished by the normal pressure vent for atmospheric and low pressure tanks, as well as a convenient access for tank cleaning, inspection and repair. Emergency relief vents provide relief from excessive internal pressure which may be caused by an abnormal condition; such as ruptured internal heating coils, an external fire, a failure of the tank blanketing system, a sudden cooling of the tank or a break in the
tank wall.

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