| 摘要 |
<p>The manifold unit comprises a sleeve made of a plastic material (10) which forms an internal transverse duct (13) with an opening (15) for inputting water coming from at least one secondary circuit (12) into the sleeve (10). The sleeve 10 is associated with a valve device to regulate and display the instantaneous rate of flow in the secondary circuit. The valve device includes a shutter (16) which can be rotated manually around an internal portion (30, 31) housed in the transverse duct (13) to open or close the opening (15) and a transparent tubular portion (20) which protrudes externally from the sleeve (10) and forms an internal elongated cavity (21) in which a flow indicator (23) slides. The shutter forms a stop tooth (37) suitable for cooperating alternately with two abutment surfaces (38, 39) formed by the sleeve (10). The surfaces (38, 39) are spaced angularly around the axis of rotation (Y) of the shutter (16) to block the rotation of the shutter in two respective angular total open and closed positions of the valve device.</p> |
