[Problems] To suppress the occurrence of abnormal noise from a ball valve due to vibrations during the vehicle is traveling, while employing a simple structure.
[Means for solving the problems] A check valve 6 for preventing a backflow of a puncture repair liquid from a bottle container 2 is disposed in a first flow path 3 for taking compressed air from a compressor 8 into a bottle container 2.
The check valve is formed by a ball valve 21 disposed in a valve housing zone Y which is located in a vertical passage part 15 of the first flow path 3 and between an upper opening 3U and a valve seat portion 20. The ball valve 21 is formed from a rubber elastic body having a specific gravity of 1.1 or more, and a rebound resilience of 15% or less.