Measuring and testing – With fluid pressure – Leakage
Patent
1995-02-24
1997-10-14
Brock, Michael
Measuring and testing
With fluid pressure
Leakage
73 37, G01M 304
Patent
active
056774800
ABSTRACT:
A method of detecting a malfunction or failure of a pressure regulator in a corrosive or reactive gas distribution system while in use involves continuously measuring or monitoring the output pressure of the pressure regulator, both in the presence and the absence of gas flow. The onset of a malfunction of the pressure regulator can be predicted when the differential output pressure between flowing and non-flowing gas fluctuates highly and increases gradually. Failure of the pressure regulator or of the total system is detected when the differential output pressure in the presence and absence of flowing gas exceeds some experimentally determined value.
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Friedt Jean-Marie
Liyanage A. Nimal
Ozawa Eiichi
Yokogi Kazuo
Brock Michael
L'Air Liquide Societe Anonyme pour l'Etude et, l'Exploitation de
Politzer Jay L.
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