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A reciprocating pump is a class of positive-displacement pumps which includes the piston pump, plunger pump and diaphragm pump. It is often used where a relatively small quantity of liquid is to be handled and where delivery pressure is quite large. In reciprocating pumps, the chamber in which the liquid is trapped, is a stationary cylinder that contains the piston or plunger. ==Types== Reciprocating pumps may be of the following types * Simple hand-operated reciprocating pump * Power operated deep well reciprocating pump * Single-acting reciprocating pump * Double-acting reciprocating pump *triple -acting reciprocating pump 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「reciprocating pump」の詳細全文を読む スポンサード リンク
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