(57) [summary] be out the valve with a cap 6 to be attached to the mouthpiece 2 of the tank 1 of the [purpose] cartridge system, even if the interior of the opening and closing valve 5 so that the liquid is not spilled, and the water in the tank 1 remaining to avoid. [Configuration] providing a die 2 at one end of the tank 1, insert the cylindrical body 3 with the interior of the closing valve 5 from the distal end opening of the mouthpiece 2, cylindrical body 3 It fitted the end of the tip of the cap 2. The tubular body 3 wall provided through oil outlet 8 communicating with the opening and closing valve 5 parts, there is provided a mouthpiece 2 side of the oil passing hole 8, and originating in the gap 4 between the mouth gold 2 and the cylindrical body 3 aqueous It''s filled with a sponge material 9. And, to cap 2 is attached a valve with cap 6, the valve with cap 6 When mounted on the tray 11 of the lower tank 10, the valve shaft 7a is pushes open the on-off valve 5, because they filled a sponge material 9 in the gap 4 between the cap 2 and the cylindrical body 3, to the tank 1 containing water also flows out through the opening and closing valve 5-valve 7 from the oil passing hole 8, the occurrence of rust in the tank 1 is prevented.
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