| 摘要 |
PROBLEM TO BE SOLVED: To provide an inexpensive deluge valve by simplifying processing of interior portions of the deluge valve and at the same time simplifying its structure.SOLUTION: Interior portions of a hollow main body 1 is divided into a primary side flow passage 3 and a secondary side flow passage 4 by a partition wall 2, the partition wall 2 is provided with a communication opening part 7, the communication opening part 7 is provided with an annular seat ring 8. A valve body 11 that can open or close the communication opening part 7 by moving toward or away from the seat ring 8 is pressed against the seat ring 8 by fluid pressure within a control chamber C formed at the rear surface side of the valve body 11. Within the main body 1 is mounted a cylindrical liner 16 that can slide and move within it. The surface of the seat ring 8 held by the lower part of the liner 16 is covered by a seal member 9. |
