Title:
CHECK VALVE FOR FIRE-EXTINGUISHING EQUIPMENT DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/008831
Kind Code:
A1
Abstract:
[Problem] To provide a check valve for use in a fire-extinguishing equipment device capable of maintaining sealing performance even over long-term use. [Solution] This check valve for a fire-extinguishing equipment device comprises: a valve body 20 stored in a hole 10, the interior of which is divided by a separating wall K into an inflow side and an outflow side, the separating wall K having a pierced communication hole 19 allowing communication between the inflow side and outflow side, the valve body 20 being provided on the outflow side of the separating wall K; a valve seat 30 inserted through the communication hole 19 and provided to protrude from the separating wall K to the outflow side; and an urging member 40 for urging the valve body 20 toward the valve seat 30. The valve body 20 is provided with a sealing member 24 on a surface facing the valve seat 30. A part of the valve seat 30 in contact with the valve seat 20 has a surface made of a fluororesin.
Inventors:
OBARA ZENKOU (JP)
Application Number:
PCT/JP2018/009608
Publication Date:
January 10, 2019
Filing Date:
March 13, 2018
Export Citation:
Assignee:
SENJU SPRINKLER CO LTD (JP)
International Classes:
A62C35/68; F16K15/06
Foreign References:
| JP2008029876A | 2008-02-14 | |||
| JPS57136062U | 1982-08-25 | |||
| JP2008014352A | 2008-01-24 | |||
| JP2001336659A | 2001-12-07 |
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