Hydraulic flange seal clamp
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United States of America Patent
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-
Mar 21, 1989
Grant Date -
N/A
app pub date -
Dec 15, 1987
filing date -
Dec 15, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A hydraulic flange seal clamp for sealing a flanged valve opening, to permit hydrostatic pressure testing of the valve, includes a pivotable connection structure between a seal member which overlies and seals the flanged opening, and a moveable piston which causes the seal member to assume the desired sealing relationship with the flanged valve opening.
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