Williams Brothers Corporation of America Defining Quality One Access Door at a Time

Toll Free: 800-255-5515

Toll Free: 800-255-5515

WB FD-P 8550 Series Fire-Rated Recessed Floor Hatch (Concrete/Tile)

In subways, skyscrapers and everything in between, the WB FD incorporates the latest fire-resistant technology to protect floors above from fire below. Independently tested to NFPA 288 (ASTM E 119).

Construction Specifications:

Cover: Aluminum, with 1" (concrete) or 1/8" (tile) recess, reinforced for 150 psf [732 kg/m2] live load, fitted with thermal-rated composite fire panel
Frame: Thermal-break frame with aluminum upper frame and stainless steel lower frame.
Finish: Cover and frame are mill finish aluminum. Hardware is stainless steel
Latch: Two-point slam latch
Hinge: Type 316 stainless steel
Spring Actuators: Stainless steel compression springs contained within the door assembly.
Automatic Hold-open and Closing Mechanism: Stainless steel hold-open arm to automatically hold the cover in the 90° position. Hold-open arm incorporates a mechanism to automatically close and latch the cover when heat breaks a UL-listed 165° F fusible link
Installation: Door is designed for installation in dry, interior locations only. Installation shall be in accordance with the manufacturer’s instructions
Flooring: Recessed for thicker architectural flooring (ceramic, stone, terrazzo, etc.)
Fire Rated: Warnock Hersey tested to 2 hours rating, tested to NFPA 288 (ASTM E119)

OPTIONS:
• Special Sizes - available on request

Model No. Door Size Material Shipping Wt Lbs.
FD-P 8550 24 x 24 Aluminum 80
FD-P 8550 24 x 36 Aluminum 140
FD-P 8550 24 x 48 Aluminum 160
FD-P 8550 30 x 30 Aluminum 130
FD-P 8550 30 x 36 Aluminum 160
FD-P 8550 36 x 36 Aluminum 190
FD-P 8550 36 x 48 Aluminum 240
FD-P 8550 42 x 42 Aluminum 250
FD-P 8550 48 x 48 Aluminum 280

Williams Brothers Corporation
Corporate Office
1330 Progress Drive
Front Royal, Virginia 22630

Western Distribution Center
Reno Nevada 

Toll Free Phone 800 255-5515
Phone 540 636-4444
Toll Free Fax 800 822-5001
Fax 540 636-4455

Toll Free Phone 800 255-5515
Phone 540 636-4444
Toll Free Fax 800 822-5001
Fax 540 636-4455

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