Float type flowmeter with integral flow regulation - has cylindrical element with measuring cone mounted in upper and lower bearings

摘要

The flowmeter has two cylindrical elements (2,3) coaxial and vertical with a rigid connecting piece (4) between them. The elements serve as bearings for a cylindrical element (5) which contains the measurement cone (6) inside which is disposed the float (7). The cylindrical element (5) is mounted pivotally in the upper bearing (3) via a toroidal sealing joint (8), and across the lower bearing (2) via two toroidal joints (9,10). A radial channel (14) for conducting fluid is found in the lower bearing (2), opening into the central cavity. The upper bearing has a fluid evacuation channel (16). The part of the cylindrical element (5) which crosses the lower bearing forms a barrel (18) presenting, at the level of the fluid conduction channel (14), a radial passage which communicates with the interior of the measuring cone. The radial passage extends from the centre of the barrel to its periphery and is prolonged by a hollow (22) between the barrel and lower bearing (20) forming a crescent whose width progressively diminishes to nothing.