The internal porting and superior construction enable these pumps to handle continuous duty service applications and pump against high differential pressure.

内部端口和极好的结构能够使这些泵处理连续的负荷检修应用和对抗高压差的泵。

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The service life for gear pump is much less than the desired design up to now, which is mainly caused by higher pressure imbalance.

迄今为止，齿轮泵的寿命还远远达不到设计要求，这主要是齿轮泵存在较大的径向不平衡力所致。

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Screw pump features are: smooth flow, small pressure fluctuation, imbibition, low noise, high efficiency, long service life and reliable operation.

螺杆泵特点是：流量平稳，压力脉动小，能够自吸，噪声低，效率高，使用寿命长，工作可靠。

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