In-rack fire protection sprinkler system including at least one unitary horizontal barrier that covers racks of adjoining racks and at least one rack level fire protection sprinkler disposed below the at least one horizontal barrier
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United States of America Patent
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Jan 21, 2025
Grant Date -
Dec 28, 2023
app pub date -
Sep 1, 2023
filing date -
Aug 10, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
A fire protection sprinkler system includes a horizontal barrier that covers two adjacent racks, and the vertical flue space between the racks. The horizontal barrier is provided at a predetermined height, and has a width that is at least equal to a width of the rack, and a depth that is at least equal to a sum of a depth of the rack, a depth of the other rack, and a depth of the vertical flue space. In addition, the horizontal barrier can be a sheet having one or more apertures. The system also includes a rack level fire protection sprinkler connected to a fluid supply conduit, and being disposed in the vertical flue space below the horizontal barrier. The rack level sprinkler has a K-factor of 11.2 gpm/(psi)1/2 or greater, and is vertically spaced from commodities stored on the rack and the other rack covered by the horizontal barrier.
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