External emergency valves shut-off flow at the outlet of an aboveground storage tank (AST) or in a liquid transfer line where product flow must be stopped in the event of a fire. Fusible link holds open spring actuated poppet in the open position. NOTE: The valve shown on this page requires periodic inspection to ensure the shutoff mechanism is operating correctly. It is not intended to be used as a “block valve” and should not be opened under pressure. Features Fully open design provides full flow when the valve is in the open position Cold non-shock pressure rated at 200 PSI W.O.G. 165° UL Listed fusible link standard (212° available) Construction Details Body, cap, poppet: Stainless steel Cap gasket: Teflon® Stem seal: Teflon® encapsulated fluorocarbon elastomers
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