| 摘要 |
PROBLEM TO BE SOLVED: To provide a drain detection device for preventing a trouble from occurring in the device by detecting the drain having accumulated to a predetermined amount or more. SOLUTION: A drain detector 1 shuts off the supply of liquid fuel to the combustion equipment by rise of a float 4, when the drain is accumulated to a predetermined amount or more. Thus, the drain is restrained from being sent together with the liquid fuel to the combustion equipment.
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