Apparatus and method of detecting leaks in pressurized piping systems
This patent describes an apparatus for detecting leaks in a pressurized liquid piping system. It comprises: a mounting frame; a fill cylinder attached to the frame; a selectively closable liquid product suction port; means for connecting the test line port to a pressurized liquid piping system to be tested; means for connecting the liquid product suction port to a supply of liquid product; means for determining the pressure of liquid product in the fill cylinder on one side of the liquid-tight piston; a pressure cylinder attached to the frame and being spaced from and coaxially aligned with the fill cylinder; a pressure regulator port formed in the pressure cylinder on one side of the pressure piston; a connecting rod attached to and interconnecting the liquid-tight piston and the pressure piston.
- Assignee:
- NOV; NOV-90-029008; EDB-90-153194
- Patent Number(s):
- US 4918968; A
- Application Number:
- PPN: US s 7-377879
- OSTI ID:
- 6555570
- Resource Relation:
- Patent File Date: 10 Jul 1989
- Country of Publication:
- United States
- Language:
- English
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