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FIG 272HLS

Internal Emergency Valve - Locking, Brass with Shear Section

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.

WARNING: 272 Series 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

Adjustable hold open mechanism

212° UL Listed fusible link standard (165° available)


Construction Details

  • Body and plunger: Brass
  • Shaft Packing: PTFE impregnated Fiber or PTFE
  • O-ring: FKM or PTFE
  • Spring: Stainless steel
  • Shaft: Zinc plated steel

Product Ordering Instructions

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
272HLS 0900 AV 2.5” x 2” Internal Emergency Valve - Locking - Shear (PTFE) 8.5
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