The paper introduces the application and installation of labyrinth sealing device in high - power mud pump without being sealed at suction mouth side.

介绍迷宫环封密装置在吸口侧无封水的大功率泥浆泵上的应用，以及迷宫环的设置与安装。

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Installation seat type, type suction a top and condole type and so on many kinds of installation, adapt to different job site lighting needs.

安装方式座式、吸顶式和吊顶式等多种安装方式，适应不同工作现场的照明需要。

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Pump installation height, length should guarantee the pump working shall not exceed the permitted on vacuum suction height.

泵的安装高度，长度应保证泵工作时不超过允许的吸上真空高度。

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