Method and apparatus for testing relief valve
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United States of America Patent
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-
Jun 20, 1989
Grant Date -
N/A
app pub date -
Feb 19, 1988
filing date -
Feb 19, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Method and apparatus for mounting and testing pressure relief safety valves while maintaining an operational capability of the safety valve and that minimizes malfunctioning and tampering with the associated fluid isolation ball-type block valves. The fluid isolation block valve is preferably manually actuated from the exterior of the apparatus to assure positive controlled operation. A releasable external locking arrangement is provided to maintain the isolation block valve in the open position and prevent undesired isolation of the safety valve from the working fluid during normal operations.
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