| 摘要 |
PROBLEM TO BE SOLVED: To provide a pressure tank provided with an abnormality detection device having a simple structure and capable of reducing cost. SOLUTION: This pressure tank is provided with the abnormality detection device 58 having a cap member 54 formed into a cap shape having a blocked end part 54a and an open end part and having a groove part 54b on an open end part side and a water leakage detection means 56 provided inside the cap member 54 and transmitting a signal according to the contact with water W.
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