Pipeline leak detector apparatus and method

Details Pipeline leak detector apparatus and method Pipeline leak detector apparatus and method

1990-06-25

1991-12-17

Raevis, Robert

Measuring and testing

With fluid pressure

Leakage

73 491, G01M 308

Patent

active

050726218

ABSTRACT:
A method for detecting leaks in a fluid pipeline where the pressure supply pump remains ON during the test procedure and pressure on both sides of a closed shut-off valve in the pipeline is maintained equal. A novel flow meter is provided comprising a parallel combination of a solenoid value and a pressure differential switch connected across the shut-off valve.

REFERENCES:
patent: 3793876 (1974-02-01), Oswald
patent: 3940020 (1976-02-01), McCrory et al.
patent: 3978709 (1976-09-01), Ando
patent: 4043355 (1977-08-01), Cerruti et al.
patent: 4942758 (1990-07-01), Cofield
Wolff, Nancy D., Service Station Pipeline Leak Detectors (1988).

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