Title:
バタフライバルブ
Document Type and Number:
Japanese Patent JP7013105
Kind Code:
B2
Abstract:
A butterfly valve that is capable of reducing torque and improves sealing performance. The butterfly valve 10 includes a shaft member 100, a tabular valve body that is provided on the shaft member 100, a case 310 that is attachable to and detachable from a through-hole 510 formed in an attachment member 500 to which the butterfly valve 10 is configured to be attached, a pair of bearings 320 that is provided in the case 310 and rotatably supports the shaft member 100, and a magnetic fluid seal that is provided between the pair of bearings 320 in the case 310 and seals an annular gap between the case 310 and the shaft member 100.
Inventors:
Daiki Sumikawa
Application Number:
JP2019512427A
Publication Date:
January 31, 2022
Filing Date:
March 30, 2018
Export Citation:
Assignee:
Eagle Industry Co., Ltd.
International Classes:
F16K1/226; F16C33/78; F16J15/43; F16J15/53; F16K41/02
Domestic Patent References:
| JP4004367A | ||||
| JP52051114A | ||||
| JP2015121263A | ||||
| JP52090815A | ||||
| JP2009058037A | ||||
| JP8270803A | ||||
| JP8320083A | ||||
| JP8014395A |
Attorney, Agent or Firm:
Hidewa Patent Office