Steel Door Louvers
Adjustable "Z" Blades with fire-actuated closure mechanism
Recommended for applications were positive fire separation is required.
All units equipped with 135(strange symbol) fusible ink; tested for compliance and listed by the Underwriters Laboratories, Inc. for use in 1 ½ hour rated doors.
Louver Blades of 16 gauge cold rolled steel pivot cadmium-plated steel rivets.
SDL-FP louvers are supplied in a medium bronze backed silicone polyester powder. Other finishes available on request.
Maximum listed size: 24" x 24"
Free Area: 45%
| SDL-FP 12 x 12" | ![]() |
| SDL-FP 18 x 12" | |
| SDL-FP 20 x 12" | |
| SDL-FP 24 x 24" | |
| For Door Cut Out use above sizes (width is the first dimension listed). |
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