<p>A replaceable valve seat ring for a valve assembly has an annular ring body and an open flow passage extending through the ring body. A seating surface is provided on the ring body adjacent one end of the flow passage. A tool accepting region of the flow passage is formed concentric with and at least partially along the flow passage. The tool accepting region is adapted to receive a standard tool head therein for installing and removing the valve seat ring.</p>
申请公布号
AU2002340466(A1)
申请公布日期
2003.06.10
申请号
AU20020340466
申请日期
2002.11.12
申请人
FISHER CONTROLS INTERNATIONAL LLC
发明人
MARK, DOUGLAS STIEHL;CARL, D. MILLER;RANDY, JEROLD HALL;RONALD, CHARLES BURR