Patent ID: 6333689
Filing Date: 2001-12-25
Classification: G01F,Y10T

Abstract:
An apparatus for use as a water flow fire alarm system of the type having:a. a supply side for delivering a specified flow of water under pressure;b. a piping system for delivering water from the supply side to a fire suppression side with one or more sprinkler heads;c. a detecting means for detecting a fire protection flow, the detecting means being disposed between the supply side and the system side;d. a drain/test connection disposed between the detecting means and the system side for draining water from the system side and for simulating desired flow rates; ande. an alarm means, in communication with the detecting means, for enunciating an alarm upon detection by the detecting means of a fire protection flow, the improvement comprising:a bypass means for providing an alternate, lower pressure drop flow path, for supplying fire protection needs where a flow impediment in the main flow path would otherwise prevent adequate flow for fire protection needs.