公开(公告)号：EP3039331A1

公开(公告)日：2016-07-06

申请号：EP14758239.9

申请日：2014-08-20

申请人： GE Oil & Gas Pressure Control LP

发明人： STOCKBERGER, Bryan, William ,  ADAMS, Keith, M. ,  MCEVOY, Travis ,  MITELMAN, Guy ,  MENARD, Christopher, Michael

IPC分类号： F16K41/14

CPC分类号： F16K41/08 ,  F16K3/02 ,  F16K41/04 ,  F16K41/14

摘要： A valve assembly includes a valve body (12) defining a flow passage and a body cavity (20) perpendicular to the flow passage. A bonnet (14) is secured to the valve body. A valve member is moveable between an open position and a closed position, the valve member blocking the flow passage in the closed position, and allowing flow through the flow passage in the open position. A valve stem (16) is coupled to the valve member. A debris barrier (38) circumscribes the valve stem (16). The debris barrier comprises a first disk shaped member (40) with a central opening through which the valve stem is inserted, and notches that extend radially from the central opening to define petals (44) with ends that abut the valve stem (16).