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Method and apparatus for monitoring a conduit system for an incompressible fluid for leaks

  • US 5,218,859 A
  • Filed: 07/29/1991
  • Issued: 06/15/1993
  • Est. Priority Date: 02/15/1989
  • Status: Expired due to Fees
First Claim
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1. A method of monitoring a fluid system for an incompressible fluid for leakage wherein the fluid system includes a pressurized source of a first incompressible fluid, a conduit system containing the first incompressible fluid and a main valve connected between the source and the conduit system, the steps of closing the main valve, introducing a predetermined first volume of an incompressible testing fluid into the conduit system under pressure during a testing period while the main valve is closed, fluid flow between the source and conduit system is blocked, and no fluid is being withdrawn from the conduit system, and measuring the time required for the predetermined volume to enter into the conduit system for obtaining an indication of leakage, the test fluid being the first fluid withdrawn from the conduit system withdrawn prior to closing the valve, and that after the complete introduction of the first volume into the conduit system, a second test volume is withdrawn from the conduit system and held available for introduction into the conduit system for monitoring purposes.

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