Title:
WET SPRINKLER SYSTEM FOR COLD ENVIRONMENTS
Document Type and Number:
WIPO Patent Application WO2000066228
Kind Code:
A9
Abstract:
In a sprinkler system for warehouse freezers or other cold environments (11), a sprinkler system piping (17) is connected to a water supply (23) through a check valve (25) and extends through a freezing cold environment to sprinkler heads (13) positioned to discharge extinguishant. The sprinkler system piping (17) within the cold environment is filled with a solution of pottasium lactate. When a fire occurs casing one or more of the sprinkler heads to be activated, the sprinkler heads will discharge the potassium lactate onto the fire. This action will reduce the pressure in the sprinkler system piping below that of the water supply so that water flows from the water supply through the sprinkler system piping through the activated sprinkler heads (13) to be discharged upon the fire.
Inventors:
DE RIS JOHN L
HANKINS JOSEPH
WILKE WAYNE H
HANKINS JOSEPH
WILKE WAYNE H
Application Number:
PCT/US2000/011494
Publication Date:
June 13, 2002
Filing Date:
April 28, 2000
Export Citation:
Assignee:
FACTORY MUTUAL RES CORP (US)
International Classes:
A62C35/60; A62C35/64; A62C35/68; F17D5/06; (IPC1-7): A62C35/00
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