| 摘要 |
<p>A diverter valve has an IN port (33) and first and second OUT ports (35,37) which are positioned along an arcuate path. A rotor (20) has an external control knob and a stem extending within the cavity of the valve body. Mounted on the stem, at right angles thereto, is a closure pin (23) which extends into the bore (15) of the hub (14) of a mushroom-shaped closure element (10). The surface of the domed head of the closure element is in contact with an O-ring seal (51) at one of the OUT ports. When the rotor (20) is turned, the O-ring (51), in contact with the surface of the domed head (12), cams the closure element (10) inwardly causing the element to slide inwardly on the closure pin (23). When the closure element (10) is in place to close-off one of the OUT ports, the other OUT port is opened and the pressure of the water flowing through the valve exerts a direct pressure on the flat annular undersurface (59) of the head of the closure element thereby maintaining the closure element in tight contact with the O-ring seal (51). <IMAGE></p> |
