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Internal Emergency Valve
One Year Manufacturer Warranty

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Morrison Brothers 272DI Internal Emergency Valve

4 x 3 in. or 6 x 4 in., Flanged, Ductile Iron

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Select Model & Quantity:

Model # Description Price Qty
272DI-0300 AV 4 in. x 3 in. Internal Emergency Valve $1,664.73
272DI-0400 AV 6 in. x 4 in. Internal Emergency Valve $2,085.69
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Morrison Brothers 272DI Internal Emergency Valve

Designed for installation at the bottom outlet of an aboveground storage tank (AST) where product flow must be stopped in the event of a fire. Fusible link holds the spring loaded valve open until activated.

NOTE: 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.

WARNING: 272 Series valves require periodic inspection to ensure the shut-off mechanism is operating. Should not be opened under pressure.

  • Adjustable hold open mechanism
  • 212° UL Listed fusible link standard (165° available)

    Construction Details:
  • Body and plunger: Ductile iron
  • Shaft: Stainless steel
  • Shaft packing: Teflon®
  • O-ring: Teflon® ecapsulated Viton® (4 in. x 3 in.)
  • Spring: Stainless steel
ModelDescription
272DI-0300 AV4 in. x 3 in. Internal Emergency Valve
272DI-0400 AV6 in. x 4 in. Internal Emergency Valve
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