Quick response dry pipe sprinkler system

Details Quick response dry pipe sprinkler system Quick response dry pipe sprinkler system

1997-11-26

1999-10-26

Morris, Lesley D.

Fire extinguishers

Processes

169 17, A62C 3562

Patent

active

059710802

ABSTRACT:
A gas charged fluid flow line of a dry pipe sprinkler system is continuously monitored to detect rate of loss of pressure (dp/dt). The rate of pressure loss is used to detect whether there is an open sprinkler head in a sprinkler grid of the system. Detection of an open sprinkler head and opening of a dry valve may occur in a matter of a few seconds, allowing for a quick response to a fire condition and accurate discrimination of a pressurized gas leak condition. The system may operate at charge pressures in the range of about 7 psig to about 15 psig.

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patent: 5320138 (1994-06-01), Ferlitch, Jr.
patent: 5720351 (1998-02-01), Beukema et al.

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