I want a small hydraulic pump to drive air into the tank.

我要买一个小水泵把给水箱加气。

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The strong points of the compound gear pump are balanced hydraulic pressure of radius, uniform of flow rate, small volume, large displacement and low noise and so on.

它具有径向液压力平衡、流量均匀性好、噪声低、排量大、体积小等优点。

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Accumulator is used in hydraulic press driven by pump-accumulator. The high pressure pump with small flow can put working liquid into the accumulator in the intermittent working time of press.

泵-蓄势器传动的液压机，由于采用了蓄势器，故只用流量较小的高压泵。

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