Maintains the fire rating of a 2-hour floor/ceiling
assembly where access is required between building floors. Features
include an optional UL Listed automatic closing system, intumescent
fire resistant coating, and a pan cover designed to accept architectural
flooring materials. New self-closing mechanism with simplified design
takes up less frame area. Specify Type FR-LC if closing mechanism is
not required by local fire authorities having jurisdiction. By Bilco.
Construction Specifications:
Material: Cover and frame are 1/4" aluminum
Cover: Aluminum plate reinforced for 150 psf (732
kg/m2) live load
Frame: Extruded aluminum frame with built in
anchor flange around the perimeter
Hinges: Continuous heavy-duty Type 316 stainless
steel hinge
Latch: Pneumatic self closing system that automatically
closes the door in the event of a fire when
heat parts a UL-listed 165°F (74°C) fusible link
Lift Assistance: Compression spring operators
enclosed in telescopic tubes.
Performance Ratings: Tested in accordance with
ASTM E119, NFPA 251, BS476: Part 22 and UL-Listed
(File R15197) as having a 2-hour fire rating
when exposed to fire from the underside.
Compliance: Self-closing mechanism complies
with ASTM E119, NFPA 80, NFPA 251 and BS476:
Part 22
Finish: Mill finish aluminum with a bituminous coating
applied to the exterior of the frame
Hardware: Engineered composite compression spring
tubes. Steel compression springs with electrocoated
acrylic finish. Type 316 stainless steel hinges. All other
hardware is zinc plated/chromate sealed.
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WB Type FR & FRLC Fire Rated Floor Hatch
