北京華德液壓優(yōu)點：高強度材料和大直徑DU軸承，使軸承負載小，用于高壓工作。

液壓閥的基本結構主要包括閥芯、閥體和驅動閥芯在閥體內(nèi)做相對運動的操縱裝置。閥芯的主要形式有滑閥、錐閥和球閥；閥體上除有與閥芯配合的閥體孔或閥座孔外，還有外接油管的進、出油口和泄油口；驅動閥芯在閥體內(nèi)做相對運動的裝置可以是手調機構，也可以是彈簧或電磁鐵，有些場合還采用液壓力驅動。
在工作原理上，液壓閥是利用閥芯在閥體內(nèi)的相對運動來控制閥口的通斷及開口的大小，以實現(xiàn)壓力、流量和方向控制。

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