先导式顺序阀华德顺序阀，华德溢流阀，华德减压阀

 （1）溢流阀：在液压设备中主要起定压溢流作用，稳压，系统卸荷和安全保护作用。 

 （2）顺序阀：在具有二个以上分支回路的系统中，根据回路的压力等来控制执行元件动作顺序的阀。 

 （3）减压阀：是一种利用液流流过缝隙产生压力损失，使其出口压力低于进口压力的压力控制阀。 

先导式顺序阀华德顺序阀产品部分型号:

DZ30-3-50B/200YM,DZ30-3-50B/100YM,DZ30-3-50B/315YM,DZ30-3-50B/50YM,

DZ30-3-50B/200Y,DZ30-3-50B/100Y,DZ30-3-50B/315Y,DZ30-3-50B/50Y,

DZ30-3-50B/200XYM,DZ30-3-50B/100XYM,DZ30-3-50B/315XYM,DZ30-3-50B/50XYM,

DZ30-3-50B/200XY,DZ30-3-50B/100XY,DZ30-3-50B/315XY,DZ30-3-50B/50XY,

DZ30-3-50B/200XM,DZ30-3-50B/100XM,DZ30-3-50B/315XM,DZ30-3-50B/50XM,

DZ30-3-50B/200X,DZ30-3-50B/100X,DZ30-3-50B/315X,DZ30-3-50B/50X,

DZ30-3-50B/200,DZ30-3-50B/100,DZ30-3-50B/315,DZ30-3-50B/50,

DZ30-3-50B/200,DZ30-3-50B/100,DZ30-3-50B/315,DZ30-3-50B/50,

我司销售的产品型号齐全，价格合理，！

DZ30-7-50B/200YM,DZ30-7-50B/100YM,DZ30-7-50B/315YM,DZ30-7-50B/50YM,

DZ30-7-50B/200Y,DZ30-7-50B/100Y,DZ30-7-50B/315Y,DZ30-7-50B/50Y,

DZ30-7-50B/200XYM,DZ30-7-50B/100XYM,DZ30-7-50B/315XYM,DZ30-7-50B/50XYM,

DZ30-7-50B/200XY,DZ30-7-50B/100XY,DZ30-7-50B/315XY,DZ30-7-50B/50XY,

DZ30-7-50B/200XM,DZ30-7-50B/100XM,DZ30-7-50B/315XM,DZ30-7-50B/50XM,

DZ30-7-50B/200X,DZ30-7-50B/100X,DZ30-7-50B/315X,DZ30-7-50B/50X,

DZ30-7-50B/200,DZ30-7-50B/100,DZ30-7-50B/315,DZ30-7-50B/50,

DZ30-7-50B/200,DZ30-7-50B/100,DZ30-7-50B/315,DZ30-7-50B/50,