| 摘要 |
A float valve assembly 1 for controlling the supply of water to a reservoir has a main body 2 having a floor 4 and side walls 3, an upper float 15 pivotably mounted within the main body 2 and a lower float (23, Fig. 6) pivotably mounted beneath the main body 2. The floor 4 of the main body has a drain aperture (5, Fig. 5). The upper float 15 is upwardly movable to a position to shut off the water supply to the reservoir, and the lower float 23 is upwardly movable to seal the aperture 5 in the floor 4 of the main body 2 to prevent water draining from the main body through the aperture 5 or from prematurely filling. |
