PRESSURE RESISTANCE CHECKING DEVICE FOR FIRE-EXTINGUISHING WATER SUPPLY EQUIPMENT

Japanese Patent JP3789118

B2

PROBLEM TO BE SOLVED: To provide a pressure resistance checking device having a vacuum/drainage function for a fire-extinguishing water supply equipment.
SOLUTION: A water supply port device 3 comprises a plurality of mouthpieces 14 and 15 for supplying water to a fire-extinguishing water pipe system 2 in a building from the outside and water supply port check valves housed within the mouthpieces 14 and 15. Pressure resistance of the fire-extinguishing water pipe system 2 is checked via the water supply port device 3. A water supply port adaptor 7 for introducing pressurized water from the outside to the water supply port device 3 is connected watertightly to the mouthpiece 14, and an opening fitting adaptor 25 is connected watertightly to the other mouthpiece 15. In the opening fitting adaptor 25, a check valve-opening fitting which opens the water supply port check valve built in the water supply port device 3 when connecting the fitting, is formed protrudingly from the inside of a cylindrical connecting fitting 26 connectable to the mouthpiece 15 of the device 3. An opening/closing valve 45 is installed openably and closably on a communicating section to the water supply port device 3 via the check valve opening attachment, and a manometer 48 is installed on the water supply port device 3 side of the opening/closing valve 45.

Sugawara Takio
Osamu Ishida
Megumi Kariya

JP2003146885A

June 21, 2006

May 23, 2003

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Chuo Rika Kogyo Co., Ltd.

A62C37/50; E03B9/02; (IPC1-7): A62C37/50; E03B9/02

JP60222743A
JP200221128A
JP7213639A
JP84060A
JP200149702A

樺澤 襄
Satoshi Kabazawa
Tetsuya Yamada

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