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FIG 346DI

External Emergency Valve - Ductile Iron

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.

Product Features

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

Product Ordering Instructions

Figure Suffix Size Description Weight (lbs)
346DI 0400 AV 1.5” External Emergency Valve - Ductile Iron 4.5
346DI 0500 AV 2” External Emergency Valve - Ductile Iron 6.5
346DI 0600 AV 3” External Emergency Valve - Ductile Iron 15
346DI 1000 AV* 0.75” External Emergency Valve - Ductile Iron 7.3
346DI 1100 AV* 1” External Emergency Valve - Ductile Iron 7.3
346DI 1200 AV* 1.25” External Emergency Valve - Ductile Iron 7.0
*1½″ valve with factory-installed reducer bushing.
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