调节阀又名控制阀，在工业自动化过程控制领域中，通过接受调节控制单元输出的控制信号，借助动力操作去改变介质流量、压力、温度、液位等工艺参数的最终控制元件。一般由执行机构和阀门组成。如果按行程特点，调节阀可分为直行程和角行程；按其所配执行机构使用的动力，可以分为气动调节阀、电动调节阀、液动调节阀三种；按其功能和特性分为线性特性，等百分比特性及抛物线特性三种。调节阀适用于空气、水、蒸汽、各种腐蚀性介质、泥浆、油品等介质。英文名：control valve，位号通常FV开头。调节阀常用分类：气动调节阀，电动调节阀，液动调节阀，自力式调节阀。
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DB3U10H-3-30B/315XYW220-50NZ5 DB3U30E-3-30B/100XG24NZ5
DB3U10H-3-30B/315XYW220-50NZ5L DB3U30E-3-30B/100XG24NZ5L
DB3U10H-3-30B/315YG24NZ4 DB3U30E-3-30B/100XW220-50NZ4
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DB3U10N-1-30B/100G24NZ5L DB3U30E-3-30B/100XYW220-50NZ5L