Patent ID: 6578435
Filing Date: 2003-06-17
Classification: G01F,G05D,Y10T

Abstract:
A chemically inert fluid control module adapted to be connected with a fluid flow circuit, the fluid flow conduit conveying a process fluid, said module comprising:a chemically inert fluid conduit; an adjustable control valve coupled to the conduit, wherein a portion of the control valve that is exposed to process fluid is chemically inert; at least a first pressure sensor coupled to the conduit, wherein a portion of the first pressure sensor that is exposed to process fluid is chemically inert; a constriction disposed within said conduit, said constriction having a reduced cross-sectional area thereby restricting flow of fluid within the conduit; and a chemically inert housing enclosing said control valve and said first pressure sensor; wherein the control valve is controllable to set a selected fluid pressure, fluid flow rate, or fluid volume as desired responsive to pressure sensed by the first pressure sensor, wherein the chemically inert material of the conduit, first pressure sensor and housing includes a non-contaminating polymer.