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FIG 346FDI

External Emergency Valve - Flanged, 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.

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.

Product Features

Standard Features

Fully open design provides full flow when the valve is in the open position

Cold, non-shock maximum operating pressure rated at 250 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)

Flanged body connection


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)
346FDI 0200 AV 2” External Emergency Valve - Ductile Iron-Flanged

15

346FDI 0300 AV 3” External Emergency Valve - Ductile Iron-Flanged 27
346FDI 0400 AV 4” External Emergency Valve - Ductile Iron-Flanged 71
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