| 摘要 |
PURPOSE: A water supply/drain control valve for a means of transportation is provided to simplify a water supply/drain system and to reduce installation expenses by controlling supply and drain water selectively with one valve. CONSTITUTION: In a water supply/drain system for a means of transportation supplying water from a feed tank to a toilet and a washstand using the air pressure of an accumulator, a water supply/drain control valve for a means of transportation comprises: an inflow pipe(70) connected with the feed tank and provided with a primary control unit(100) operated by air pressure; a feed-water pipe(80) connected with the inflow pipe to supply water from the feed tank to the toilet and washstand according to the operation of the primary control unit; an exhaust pipe(90) connected with the inflow pipe to exhaust the water of the feed-water pipe and the water of the feed tank; and a drain pipe(110) connected with the inflow pipe and provided with a secondary control unit(101) operated according to air pressure to drain water from the feed-water pipe.
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