JOINT WITH STREAM DETECTING FUNCTION FOR SPRINKLER FIRE EXTINGUISHING EQUIPMENT

摘要

PROBLEM TO BE SOLVED: To provide a joint by which only a stream by means of the operation of a sprinkler head in a piping is detected. SOLUTION: A sprinkler fire extinguishing equipment consists of a T-shaped or Y-shaped joint main body 71 provided with a flow-in port 3 and a flow-out port 74 which are connected to a piping 2 and provided with a branch path part 72 which is arranged between the flow-in port and the flow-out port and is connected to a close type sprinkler head 8 directly or through a duct and consists of a stream detecting equipment 9 which is arranged in the branch path part of the joint main body so as to detect a stream by the operation of the sprinkler head 8. The stream detecting equipment 9 is provided with a rotary shaft 92 arranged by penetrating the side wall of the joint main body 71, a blade plate 93 fitted to the rotary shaft 92, a magnet 94 fitted to the end part of the rotary shaft 92 and an adjacent switch 95 operated by the rotation of the magnet 94.