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Flame Arrester / Pressure Vacuum Vent
One Year Manufacturer Warranty

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Morrison Brothers 351S Series Flame Arrester / Pressure Vacuum Vent

2in., 2oz/sq. in. - 16oz/sq. in.

Ships From Manufacturer

Select Model & Quantity:

Model # Description Price Qty
351S--0200 AV 2 in., 2oz/sq. in., with Vacuum Vent $818.35
351S--0300 AV 2 in., 4oz/sq. in., with Vacuum Vent $823.34
351S--0400 AV 2 in., 6oz/sq. in., with Vacuum Vent $828.82
351S--0500 AV 2 in., 8oz/sq. in., with Vacuum Vent $831.32
351SB-0500 AV 2in., 8oz/sq. in., with Vacuum Vent, BSP $831.32
351S--0600 AV 2 in., 12oz/sq. in., with Vacuum Vent $837.95
351S--0700 AV 2 in., 16oz/sq. in., with Vacuum Vent $842.61
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Morrison Bros. Co. 351S Series Flame Arrester / Pressure Vacuum Vent
Manuals and Information:
351S Series Spec Sheet

Flame arresters provide a positive barrier that keeps flames from passing through the pressure vacuum vent line into a storage tank's vapor space.

351S Flame Arrester Construction:
  • Body and cover: Cast iron
  • Arrester Plates: Stainless steel
  • Arrester grid housing: Brass
748A Pressure Vacuum Vent Construction:
  • Body and hood: Aluminum
  • Poppets: Brass
  • Seats: Aluminum
  • Screens: 30 mesh stainless steel

WARNING: Do not use with acetylene, carbon disulfide, etheleneoxide or hydrogen gases. For use with normal hydrocarbon flames such as gasoline in air.

Routine inspection is required to ensure airways are clear and free of debris. Blocked airways can cause structural deformation of the tank.