PURPOSE: To facilitate the attachment/detachment of a liquid supply control device to/from a liquid storage tank, and miniaturize the device.
CONSTITUTION: A pilot valve mechanism 6 where a liquid supply valve mechanism 2 is connected by nuts 4 and a guide cylinder 5 is screwed is fitted to a tank 1. A liquid supply valve 14 supported by a diaphragm 15 is arranged an entrance of a fluid discharge passage 13 of the fluid supply valve mechanism 2, and a pressure adjusting chamber 17 is provided at the back of the fluid supply valve 14. A cylindrical pilot main valve 24 is fitted to a casing 21 of the pilot valve mechanism 6 in the vertically movable manner to allow the lower surface to open/close a first discharge port 23. A pilot sub valve 33 is inserted in a cylindrical hole of the pilot main valve 24 so as to open/close a second discharge port 30 by a flange 33b. The flange 33b is energized downward by a compression spring 34, and the lower end of a shaft part 33a is freely fitted to a fitting hole 41b of a lever 41 to be turned by a float 47.
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TANJI TOMOTAKA
OBAYASHI AKIRA
