按控制方法分类：手动，电控，液控。

按功能分类：流量阀（节流阀、调速阀，分流集流阀）、压力阀（溢流阀，减压阀，顺序阀，卸荷阀）、方向阀（电磁换向阀、手动换向阀、单向阀、液控单向阀）。

按安装方式分：板式阀，管式阀，叠加阀，螺纹插装阀，盖板阀。

按操纵方式分：手动阀，机动阀，电动阀，液动阀，电液动阀等。

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