Measuring and testing – With fluid pressure – Pipe
Patent
1993-07-29
1995-01-03
Williams, Hezron E.
Measuring and testing
With fluid pressure
Pipe
73 405R, G01M 328
Patent
active
053775309
ABSTRACT:
An apparatus for hydrostatic pressure testing of tubular products that enables short segments of the tubular product to be individually tested under conditions simulating a capped tube hydrostatic test. The apparatus includes a first seal bladder and gripper member assembly connected to a second seal bladder and gripper member assembly by a connecting member that allows relative axial movement between the two assemblies. A fluid outlet port is provided in the connecting member to introduce pressurized fluid into the short segment of the tubular product between the seal bladders of the two assemblies. Since the first seal bladder and gripper member assembly is axially movable relative to the second seal bladder and gripper member assembly, an axial stress as well as a hoop stress will be induced in the tubular product during testing.
REFERENCES:
patent: 3412790 (1968-11-01), Brown
patent: 4460019 (1984-07-01), Condon
patent: 4468952 (1984-09-01), Rathburn
Allen Bruce F.
Crick David L.
Depeau Alfred D.
Combustion Engineering Inc.
Kananen Ronald P.
Mulholland John H.
Roskos Joseph W.
Williams Hezron E.
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