Velo sprinkler arrangement for protecting special occupancy haza

Fire extinguishers – Processes – Of extinguishing fire

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169 37, 169 16, A62C 200

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active

059154799

ABSTRACT:
In the typical sprinkler arrangements described in the specification, effective protection for certain special occupancy hazards is achieved with a low pressure water supply using VELO sprinklers having a K factor of at least 14 arranged in arrays in which the sprinklers are spaced by ten feet in two orthogonal directions or by ten feet in one direction and by eight feet in an orthogonal direction. The commodities to be protected are stored in racks extending parallel to one of the orthogonal directions. For most hazards, a water pressure of 7 psi (0.5 bar) is effective with sprinklers having a K factor of 14. For plastic materials, a water pressure of 12 psi (0.8 bar) is effective for sprinklers having a K factor of 14 and, using sprinklers having a higher K factor, the pressure can be reduced to 7 psi (0.5 bar).

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