| 摘要 |
<p>The valve includes a duct (13) for carrying water into the valve, a rotatable knob (18) for adjusting the flow of water through the duct (13) by means of a shutter, an externally projecting tubular body (20) of a transparent material with an internal cavity (21) and a flow indicator rod, slidable inside the valve, with a portion in the intake duct (13) and an indicator portion in the internal cavity (21) of the transparent body (20). The lower portion of the indicator rod (40) has a conical head (41) acting as a shutter for the intake duct (13) while the upper, indicator portion has an upper area able to indicate no water is flowing and a second, lower area able to indicate that water is flowing through the duct (13). The transparent body (20) is secured to the knob (18) and coupled coaxially by threaded means (42) to a tubular element (30) of the valve in order to adjust upwards or downwards the position of an abutment surface (48) of the rod (40) and thereby obtain closure or a degree of opening of the valve. <IMAGE></p> |
