Triple valve blow out preventer
    1.
    发明申请
    Triple valve blow out preventer 有权
    三重阀防喷器

    公开(公告)号:US20060191679A1

    公开(公告)日:2006-08-31

    申请号:US11201056

    申请日:2005-08-09

    IPC分类号: E21B33/06

    摘要: A triple-valve internal blow out preventer having unitary construction is provided, each valve including a tubular assembly having a central passageway with upper and lower seats mounted therein. A ball is rotatably received between the upper and lower seats and includes an external surface and a central opening, wherein the central opening may include an undercut. A protective coating may also be applied to both the external surface and the undercut of the ball to increase the durability of each of the valves.

    摘要翻译: 提供具有单一结构的三阀内部防喷器,每个阀包括管状组件,其具有安装在其中的上部和下部座的中心通道。 球可旋转地容纳在上座椅和下座椅之间,并且包括外表面和中心开口,其中中心开口可包括底切。 还可以将保护涂层施加到球的外表面和底切上,以增加每个阀的耐久性。