
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 spring actuated poppet in the open position.
WARNING: The valves shown on this page require periodic inspection to ensure the shut-off mechanism is operating correctly. They are not intended to be used as a block valve and should not be opened under pressure.
Standard 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.
Flanged model conforms to ANSI B16.42 specification for class 150# raised face flanges
165° UL Listed fusible link standard (212° available)
Construction Details
- Body, cap, and poppet: Ductile iron
- Cap gasket: PTFE
- Stem seal: PTFE encapsulated fluorocarbon elastomers
