Volume current measuring arrangement as well as volumetric flow controller with a volume current measuring arrangement

摘要

Volume current measuring arrangement according to the difference pressure principle with a in a measuring tube body (1) arranged retaining bodies (7, 17, 21), with a in the direction of flow (1a) upstream of the baffle (7, 17, 21) and a pressure reading point plus - arranged in the or around the baffle (7, 17, 21) arranged downstream of the baffle or minus - pressure reading point, wherein the arranged pressure removal holes (8, 9, 16, 20, 23) with passage surfaces essentially parallel to the axial direction of the measuring tube body on the basis of (1) have,characterized by the,that as a plus - pressure reading point and / or minus - pressure reading point in each case a pressure removal pipe (6) within the measuring tube body (1) in each case in a cross-sectional plane of the measuring tube body (1) is arranged and extend substantially over the inner diameter of the measuring tube body (1) andthat, in the casing of the pressure removal pipe (6) a in the axial direction of the pressure removal tube (1) extending row of lateral pressure removal holes (8) are shaped.