Method for testing relief valve
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United States of America Patent
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-
Aug 1, 1989
Issued Date -
N/A
app pub date -
Oct 14, 1988
filing date -
Feb 19, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Disclosed is a method and apparatus for testing pressure relief safey valves in operation that minimizes malfunction and tampering with the associated operating fluid isolation block valve. The isolation block valve is preferably manually actuated from the exterior of the apparatus to assure positive controlled operation. A locking arrangement is provided to maintain the isolation block valve in the open position and prevent isolation of the safety valve during normal operations.
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