Title:
SPRINKLER FACILITY WITH WATER FLOW DETECTOR
Document Type and Number:
Japanese Patent JP3933295
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a comfortable living environment by preventing the propagation of water attack to secondary side piping and to prevent the damage to a sprinkler head.
SOLUTION: A closed sprinkler head is provided over secondary side piping, the secondary side piping is connected through a water flow detecting valve 30 to primary side piping directly connected to a water feeding pipe, and a terminal water feeding faucet for living is provided on the downstream side of the closed sprinkler head over the secondary side piping. Then, the operating flow rate of the water flow detecting valve 30 is set lower than the flow rate of the closed sprinkler head and higher than the flow rate of the terminal water feeding faucet for living. Further, the water flow detecting valve 30 is equipped with a governor mechanism 38 engaged with a rack 35b provided at an axial part 35a of a valve element 35, and the rapid lifting action of the valve element 35 is braked.
Inventors:
Kiyoshi Matoba
Application Number:
JP8428298A
Publication Date:
June 20, 2007
Filing Date:
March 30, 1998
Export Citation:
Assignee:
Nomi Disaster Prevention Co., Ltd.
International Classes:
A62C35/60; A62C35/68; G01P13/00; (IPC1-7): A62C35/60; A62C35/68; G01P13/00
Domestic Patent References:
| JP7116282A | ||||
| JP7047147A | ||||
| JP6289941A | ||||
| JP10057518A | ||||
| JP9299501A | ||||
| JP55020912A | ||||
| JP55024273A | ||||
| JP7203784A | ||||
| JP61074977A | ||||
| JP10272198A |
Attorney, Agent or Firm:
Michiteru Soga
Yoshio Kobayashi
Yutaka Ikeya
Hidetoshi Furukawa
Suzuki Kenchi
Masahisa Hase
Tetsuo Kuroiwa
Yoshio Kobayashi
Yutaka Ikeya
Hidetoshi Furukawa
Suzuki Kenchi
Masahisa Hase
Tetsuo Kuroiwa