| 摘要 |
PROBLEM TO BE SOLVED: To provide a vacuum breaker that enhances degree of freedom of installation.SOLUTION: A vacuum breaker includes: a body part 41 having a first flow channel R1 extending in a vertical direction, a second flow channel R2 extending in a direction intersecting with the first flow channel R1, and an opening 432 formed above the first flow channel R1; a flow channel switching member 44 movable between a first position and a second position, the first position connecting the first flow channel R1 with the second flow channel R2 and closing the opening 432, and the second position opening the first flow channel R1 to the atmosphere through the opening 432; a holding member 45 holding the flow channel switching member 44 movably between the first position and the second position; a lead-out port 466 leading overflowing water outside through a gap between the flow channel switching member 44 and the opening 432; and an overflowing water lead-out member 46 fitted on the body part 41 or the holding member 45, to be rotatable around the body part 41.SELECTED DRAWING: Figure 4 |
