| 摘要 |
PROBLEM TO BE SOLVED: To provide a selection valve for fire-extinguishing equipment which can reduce the costs and maintain the quality with a simpler structure of the selection valve itself along with easier construction management by eliminating the need for boring piping to weld special metall fittings and the eventual need for the cleaning, the rust prevention treatment, and the like, of the inside of the piping. SOLUTION: In the selection valve 2 for the fire-extinguishing equipment in which a connection part 6 for the piping 3 to be connected thereto is provided on a valve body 7, a through hole 9 is drilled in the connection part 6 for the communication with a gas passage 8 while a pressure sensing means 11 is connected to the through hole 9. COPYRIGHT: (C)2004,JPO
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