Patent ID: 8365765

Claim:
A method for conditioning a flow of fluid between flow sensor orifices comprising the steps of: positioning a flow restriction member having an integrated two faced flange, the two-faced flange comprising a faceplate member having two sealing surfaces disposed around the flow restriction member, the first sealing surface on one side of the faceplate member and the second sealing surface on the other side of the faceplate member, and a hub not otherwise disposed by the sealing surfaces of the two faced flange, and a torus wedge structure having a sill within a fluid flow path, using the two faced flange to position the flow restriction member a distance from the flow sensor orifices; aligning the flow restriction member within the fluid flow path using the hub to align the vortex of the sill of the torus wedge structure perpendicular to the fluid flow path; sealing the flow restriction member within the fluid flow path, using the integrated two faced flange to effect the seal; restricting the flow of fluid within the fluid flow path; wherein the step of restricting comprises the steps of: progressively reducing the cross-sectional area of the fluid flow path; maintaining a constant cross-sectional area of the fluid flow path after the fluid flow path has been progressively reduced; and increasing the cross-sectional area of the fluid flow path after the fluid flow path has been maintained at a constant cross-sectional area.