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.
申请公布号
RU2004117885(A)
申请公布日期
2005.04.27
申请号
RU20040117885
申请日期
2002.11.12
申请人
ФИШЕР КОНТРОЛЗ ИНТЕРНЭШНЛ ЛЛС (US)
发明人
ХОЛЛ Рэнди Джерольд (US);БАРР Рональд Чарльз (US);СТЕЛ Марк Дуглас (US);МИЛЛЕР Карл Д. (US)