Constant flow and constant pressure fluid regulator

Details Constant flow and constant pressure fluid regulator Constant flow and constant pressure fluid regulator

F - Mech Eng,Light,Heat,Weapons

16

K

73/103, 137/34

F16K 11/10 (2006.01) G05D 16/00 (2006.01)

Patent

CA 1312525

- 11 - 54,348 ABSTRACT OF THE DISCLOSURE The present invention provides constant fluid flow and constant pressure to chemical analysis monitors 24-26 for reliably monitoring the quality of fluid in a plant such as a power generating plant. A high pressure fluid source 28 provides fluid to a forward pressure regulating valve 30. The valve 30 supplies a metering valve 36 which regulates flow. The pressure on the output side of the metering valve 36 is maintained constant by a back-pressure regulating valve 40. The constant pressure and flow fluid is supplied from between valves 36 and 40. Excess fluid bled off by valve 40 can be returned to the source 28. A second stage of pressure regulation which improves pressure constancy can be provided by valves 45 and 46 at the first stage pressure or at a different pressure.

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