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Free Flow Louver™, Inverted Y Steel with INTUMET™ Fire Seal

Free Flow Louver™, Inverted Y Steel with INTUMET™ Fire Seal

This product has been discontinued.

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Price: $110.00
Size (W" x H")
Qty Out of stock
SKU A200AIL_G1212
Options Standard or Galvanized Steel, 1.75" or 1.375" Door Thickness

Vision proof louvers are great for allowing air ventilation while preventing visual contact between rooms.

This Vision-Proof Fire Rated Louver is comprised of an inverted "Y" design with concealed INTUMET™ fire seal. It is designed to achieve fire ratings in wood composite and hollow metal doors up to 90 minutes, when ordering louvers that are up to 24" x 24" in size(to acheive a 4 hours rating, a Fire Block Insert can be added for additional fee, see option tab for details). The intumescent material expands at 550ºF and is suitable for hot or cold weather. The louver free area is 48% of order size (52% obstructions). Louvers that are more than 24" x 24" in size will void this rating.

It is constructed from 20 gauge cold rolled steel, thus lending a smooth finish that is durable and built to last. It can be mounted on doors with a thickness of 1-3/8" or  1-3/4" (select from options above) or as an application on walls. The front frame is attached to the lower core with concealed screws which provides a very clean look.

This product can be ordered with a standard or galvanized steel (add 20%). Galvanized steel is recommended for exterior or high humidity applications.

  • High fire rating with INTUMET™ fire seal
  • INTUMET™ activated at 550ºF
  • Allows air circulation, without visual contact
  • 48% louver free area
  • For metal or wooden doors
  • 1.75" or 1.375" doors
  • 20 gauge aluminum alloy
  • Concealed installation screws
  • Custom built to size

#10 x 3/8" Sheet Metal Screws provided for istallation.

Order Size: Dimensions of nominal size, see product specs.

Fire Block Insert can be added to acheive greater ratings. See option tab for more details.

Additional Sizing Available: Additional sizes up to 24" x 24" are available. For details and pricing, contact us or call us at 845-388-1300.

Please note, images are for illustrative purposes only. They are not actual photos. Therefore, actual colors may vary slightly and size many be enlarged to show detail. See product specs for exact measurements.

Please allow 7-14 business days for this product to ship.

This product has a 3 year guarantee against defects in material and workmanship.

For another fire rated louver option, see our Fusible Link Louver.

Product Specs
Fire Block Option

FB Intumescent Block can be used to achieve fire ratings for door louvers in metal doors of 1.750" (44mm) or greater thickness. The 0.55"(14mm) thick FB Intumescent Block is designed to layer inside a two-part metal louver set attached to both sides of the door. A reinforcing inverted channel is required at the bottom of the cut-out to support the FB Intumescent Block. There is no limit on door thickness; additional lateral support is needed for louvers in doors with greater thickness.

The FB Intumescent Block has been assessed up to four-hour fire rating by UK Warrington Fire Research Centre as part of the Fire Block Louver System (FBLS) for fire-rated steel doors with apertures up to 18" x 60" (0.46 x 1.5m).

Please contact us or call us at 845-352-3200 for purchases and pricing.


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