发明名称 |
LOAD BALANCING SPHERICAL DIAMETER SINGLE SEAT BALL SYSTEM |
摘要 |
A ball valve comprises a housing, a first seat surface, a second seat surface, and a ball rotatably movable within the housing. The ball contacts at least one of the first seat surface and the second seat surface to form a seal within the ball valve. The first seat surface and the second seat surface are fixed relative to each other, and pressure acting in a first direction and in a second direction opposite the first direction increases the contact pressure of the first seat surface and the second seat surface with the ball. |
申请公布号 |
EP2702237(A4) |
申请公布日期 |
2014.12.31 |
申请号 |
EP20120777338 |
申请日期 |
2012.04.18 |
申请人 |
HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
KALB, FRANK DAVID;AITKEN, LIAM ANDREW;WEBBER, ANDREW JOHN |
分类号 |
E21B34/08;E21B43/12;F16K5/06;F16K5/20 |
主分类号 |
E21B34/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|