Title:
高圧用トラニオン型ボール弁およびこれを用いた水素ステーション
Document Type and Number:
Japanese Patent JP6490007
Kind Code:
B2
Abstract:
A high-pressure trunnion ball valve which is particularly suitable for a high-pressure fluid, suppresses a thrust load to a stem to realize low torque performance while maintaining a valve seat sealing performance even under a high pressure, and can perform opening and closing operations by an approximately constant and stable operation torque and can be made small, and a hydrogen station using the same are provided. The high-pressure trunnion ball valve is composed of a ball 10 rotatably provided in a body 3 having a lid member 2, a seat retainer 11 seal-connected to the ball 10, a spring member 12 applying an elastic force to the seat retainer 11 to a seal side, and a seal member 13 attached to an outer circumferential face of the seat retainer 11. An upper stem 50 and a lower stem 51 having the same diameter are provided on an upper side and a lower side of the ball 10 in an extending manner, respectively, to constitute a ball member 52, shaft-attaching seal mechanisms 20 having the same structure are attached to the upper and lower stems 50 and 51 at symmetrical positions regarding the ball 10 to achieve a balance structure, thereby avoiding thrust loads.
Inventors:
Ken Gomi
Ronald Gunther
Watanabe
Ronald Gunther
Watanabe
Application Number:
JP2015534288A
Publication Date:
April 03, 2019
Filing Date:
August 28, 2014
Export Citation:
Assignee:
KITZ CORPORATION
International Classes:
F16K5/06; F16K27/06; F16K41/04; H01M8/04; H01M8/0606
Domestic Patent References:
| JP4008669B2 | ||||
| JP2008286228A | ||||
| JP2007205485A | ||||
| JP2011172766A | ||||
| JP2012013143A | ||||
| JP7174247A | ||||
| JP59024568U | ||||
| JP2006234021A |
Attorney, Agent or Firm:
Tetsuo Kobayashi
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