Title:
REPAIR VALVE
Document Type and Number:
Japanese Patent JP2019007559
Kind Code:
A
Abstract:
To provide a repair valve that can prevent a valve element and a valve casing valve seat from being stuck.SOLUTION: A repair valve 1 comprises: a valve casing 10 comprising an inflow port 12 and a discharge port 16 through which fluid passes; a valve element 30 comprising an inflow port side opening part 34 and a discharge port side opening part 33 opposed to the inflow port 12 and the discharge port 16, respectively, when the fluid passes through the inflow port 12 and the discharge port 16, and comprising a water stop surface part 31 opposed to the discharge port 16 when the fluid is prevented from passing through the discharge port 16; and a valve seat part 19 being interposed between the valve element 30 and the discharge port 16, and arranged in the valve casing 10. When the water stop surface part 31 is opposed to the discharge port 16, the water stop surface part 31 is brought into contact with the valve seat part 19. When the discharge port side opening part 33 is opposed to the discharge port 16, the discharge port side opening part 33 is separated from the valve seat part 19.SELECTED DRAWING: Figure 2A
More Like This:
| WO/2018/031699 | BALL VALVE SYSTEM |
| WO/2006/091117 | BALL VALVE WITH ARRANGEMENT FOR SEPARATING SEALING SURFACES AND CORRESPONDING METHOD |
Inventors:
FUJITA YUKIHISA
Application Number:
JP2017124175A
Publication Date:
January 17, 2019
Filing Date:
June 26, 2017
Export Citation:
Assignee:
MAEZAWA KOGYO
International Classes:
F16K5/20; F16K5/06
Domestic Patent References:
| JP2001324033A | 2001-11-22 | |||
| JPH11148566A | 1999-06-02 | |||
| JPH09210225A | 1997-08-12 |
Attorney, Agent or Firm:
Shoichi Okuyama
Arihara Koichi
Matsushima Tetsuo
Ayako Nakamura
Satoshi Morimoto
Yu Tanaka
Tokumoto Koichi
Arihara Koichi
Matsushima Tetsuo
Ayako Nakamura
Satoshi Morimoto
Yu Tanaka
Tokumoto Koichi