| 摘要 |
A float valve system for controlling an amount of liquid in a chamber is disclosed that includes a valve assembly in the chamber. The valve assembly has a support structure a retaining element having a first valve seat and a second valve seat therein and a flexible diaphragm positioned between a support structure and a retaining element. The first valve seat is adapted to receive fluid from an inlet and the second valve seat is fluidly coupled to the first valve seat through a valve conduit formed between the retaining element and the flexible diaphragm. A lower float and an upper float are coupled to the support structure. The lower float is disposed below the valve assembly and the upper float. The upper float is disposed between the valve assembly and the lower float. When a fluid in the chamber reaches a first predetermined level, the lower float moves so as to urge the flexible diaphragm against the first valve seat. When a fluid in the chamber reaches a second predetermined level, the upper float moves so as to urge the flexible diaphragm against the second valve seat. |
