Abstract: A kinetic antifreeze device for preventing a dry sprinkler system from freezing is disclosed. The kinetic antifreeze device contains a longitudinal pipe for guiding air and water flow connected to a dry sprinkler system pipe at a junction adjacent to a drain valve. The longitudinal pipe provides a pressure gauge, an isolation valve, a bleed off valve and a relief disc for providing over pressure relief. The relief disc is either a bursting disc device or a rupture disc device which remains closed when the dry sprinkler system is contains only air. The relief disc exits or opens upon fire suppression fluid entering the system after a main supply of fire suppression fluid is actuated by the dry sprinkler system and the pressure increases due to the presence of fire suppression fluid in the dry sprinkler system.

Abstract: A kinetic antifreeze device for preventing a dry sprinkler system from freezing is disclosed. The kinetic antifreeze device contains a longitudinal pipe for guiding air and water flow connected to a dry sprinkler system pipe at a junction adjacent to a drain valve. The longitudinal pipe provides a pressure gauge, an isolation valve, a bleed off valve and a relief disc means for providing over pressure relief. The relief disc means is either a bursting disc device or a rupture disc device which remains closed when the dry sprinkler system is contains only air. The relief disc exits or opens upon fire suppression fluid entering the system after a main supply of fire suppression fluid is actuated by the dry sprinkler system and the pressure increases due to the presence of fire suppression fluid in the dry sprinkler system.