发明名称 |
TRUNNION BALL VALVE FOR HIGH PRESSURE, AND HYDROGEN STATION |
摘要 |
A trunnion ball valve for high pressure and a hydrogen station are provided, which achieves low torque during operation, and whose durability is improved to maintain sealing ability for a long period of time. In a trunnion ball valve including a ball provided inside a body main unit in a freely rotatable manner; and a seal mechanism provided on positions on both sides of the ball so as to be in seal contact with the ball, the seal mechanism including: a seat retainer having a sealing surface that is to be in seal contact with a ball surface of the ball; a spring member provided for applying elastic force on the sealing surface side; and a sealing member provided on an outer surface of the seat retainer, at least both of the sealing surface and the ball surface has a coating layer of diamond-like carbon provided thereon, so as to exhibit sliding ability and sealing performance. |
申请公布号 |
EP2821680(A4) |
申请公布日期 |
2015.11.11 |
申请号 |
EP20130754623 |
申请日期 |
2013.02.28 |
申请人 |
KITZ CORPORATION |
发明人 |
WATANABE, OSAMU;WATANABE, TETSUYA |
分类号 |
F16K5/06;F16K5/20;F16K5/22;F16K25/00;F16K27/06 |
主分类号 |
F16K5/06 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|