发明名称 |
Valve leakage inspection, testing and maintenance process |
摘要 |
A valve maintenance process is described that allows for the inspection and testing of valve stem packing and back-seat leakage. The process uses the characteristics of incompressible fluid flow to check the integrity of the valve back-seat, to allow the controlled removal of the complete packing set and to confirm the newly installed packing set is not leaking. The process is designed to reduced down-time and to improve the engineering quality of valve repair.
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申请公布号 |
US4916938(A) |
申请公布日期 |
1990.04.17 |
申请号 |
US19880262659 |
申请日期 |
1988.10.26 |
申请人 |
ATOMIC ENERGY OF CANADA LIMITED |
发明人 |
AIKIN, JOHN A.;ANGUS, DEREK;REINWALD, JOHN W.;SCHANKULA, JACK |
分类号 |
G01M3/28 |
主分类号 |
G01M3/28 |
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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