发明名称 |
Double spiral-wound gasket assembly with leak detection |
摘要 |
A gasket assembly with double spiral-wound gaskets and a middle draw-off port for leak detection in service with a process fluid featuring 1) an inner primary seal spiral-wound gasket with a high spring rate to hold the process fluid and pressure, 2) an outer secondary seal spiral-wound gasket with a lower spring rate to hold the process fluid temporarily while a new gasket is being installed, 3) inner and outer compression/gauge rings that allow compression of the spiral-wound gaskets to the proper thickness, and 4) a middle compression ring between the two spiral-wound gaskets that also provides a groove on each side in communication with a draw-off port for monitoring leakage from the inner gasket.
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申请公布号 |
US5348310(A) |
申请公布日期 |
1994.09.20 |
申请号 |
US19920997437 |
申请日期 |
1992.12.28 |
申请人 |
THE DOW CHEMICAL COMPANY |
发明人 |
BROWNING, CALVIN J.;MERCER, CARL D.;MILLIGAN, WILLIAM S. |
分类号 |
G01M3/04;G01M3/22;(IPC1-7):F16T15/32 |
主分类号 |
G01M3/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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