发明名称 |
HIGH STRENGTH BALL VALVE SEAT ASSEMBLY |
摘要 |
HIGH STRENGTH BALL VALVE SEAT ASSEMBLY A ball valve for low and high pressure applications including a metallic seat member that toroidally deflects into sealing engagement with a ball member outer surface upon valve assembly. The seat member includes an outer circumferential rim portion and a radially inward extending frusto-conical portion. The rim portion is radially interposed between an annular, resilient flange member and an annular support member. The rim portion and resilient flange member define a behind-the-seat seal while the frusto-conical portion and support member abuttingly engage during extreme pressure conditions for added structural support. The radially innermost edge of the frusto-conical portion has an arcuate conformation to inhibit scoring of the ball member surface.
|
申请公布号 |
CA1291104(C) |
申请公布日期 |
1991.10.22 |
申请号 |
CA19870534181 |
申请日期 |
1987.04.08 |
申请人 |
WHITEY CO.;WHITEY CO. |
发明人 |
YUSKO, EDWARD M., JR.;WOZNIAK, RICHARD F.;WILLIAMS, PETER C. |
分类号 |
F16K5/06;(IPC1-7):F16K5/06 |
主分类号 |
F16K5/06 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|