| 摘要 |
PURPOSE:To enable drain to be collected economically without any restriction due to conditions on site by carrying drain to a collecting tub by compressed air of a compressor. CONSTITUTION:Compressed air is supplied from a compressor A to a flow pipe 1 via an air cleaner A' for air instrumentation, driving and cleaning. And a flow pipe 2 is provided to carry the drain from the air cleaner A' to a collecting tub B. A rising part and a check valve C are provided at the root of the flow pipe 2 and the drain is so arranged as to be carried in the flow pipe 2 by action of the pressure of the compressed air in the compressor A.
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