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Internal Emergency Valves
One Year Manufacturer Warranty

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Morrison Brothers 272 Internal Emergency Valves

2 to 4 in., for General Use, with Shear Section and Locking Option, Brass

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Select Model & Quantity:

Model # Description Price Qty
272HOS0100 AV 2 in. x 2 in., Shear Section $524.62
272HOS0500 AV 3 in. x 3 in., Shear Section $759.62
272HLS0100 AV 2 in. x 2 in., Locking Style - Shear $622.65
272HLS0500 AV 3 in. x 3 in., Locking Style - Shear $858.59
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Morrison Brothers 272 Internal Emergency Valves
Manuals and Information:
Specification Sheet

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.

Standard Features
  •    Adjustable hold open mechanism
  •   212° UL Listed fusible link standard (165° available)
Construction Details
  • Body and plunger: Brass
  • Shaft Packing: Teflon® impregnated Fiber or Teflon®
  • O-ring: Viton® or Teflon®
  • Spring: Stainless steel
  • Shaft: Zinc plated steel

 

Figure Suffix Size Description Weight (lbs)
272HLS 0100 AV 2" x 2" Internal Emergency Valve - Locking Style - Shear 7
272HLS 0500 AV 3" x 3" Internal Emergency Valve - Locking Style - Shear 11.5
272HLS 0600 AV 4" x 3" Internal Emergency Valve - Locking Style - Shear 16.5
272HOS 0100 AV 2" x 2" Internal Emergency Valve - Shear Section 6.8
272HOS 0500 AV 3" x 3" Internal Emergency Valve - Shear Section 9.7
272HOS 0600 AV 4" x 3" Internal Emergency Valve - Shear Section 17
272HOS 0700 AV 4" x 4" Internal Emergency Valve - Shear Section 19.8