| 摘要 |
According to an aspect of the present invention, there is provided a float valve apparatus including: a housing including: a partition wall dividing an internal space into lower and upper spaces and having an opening therein; a ventilation pipe communicating the upper space with an outside; a valve seat formed at the opening; and a communication hole communicating the lower space with the outside; a float that is valve vertically slidably movable in the lower space and that upwardly floats in accordance with liquid flowing thereinto to open and close the opening; an upward urging spring urging the float valve from the housing toward the opening; and a support spring disposed inside the upward urging spring to support the float valve to not contact with a bottom surface of the housing. |
