R900456105
R900456105 DB52P1-3X/100U
R900564321 DB52P1-3X/100XU
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力士乐DB型式的溢流阀
系统所施加的压力作用在主阀芯(4)上。同时,压力将通过先导管路(6) (与节流孔相配合)施加到主阀芯(4)的弹簧加载侧和先导控制阀(1)。当系统压力超过弹簧(7)上的设置值时,先导控制阀的阀心(10)将打开。现在,液压流体可以从主阀芯(4)的弹簧加载侧通过先导控制阀(1)的弹簧腔(内部由油口T或外部由油口Y)流向油箱。由于先导管路中节流孔的组合,跨越主阀芯处将产生压差,从而打开了P至T的连接。液压流体将以设置的工作压力从通
道P流向通道T。溢流阀可以遥控卸载或通过油口XX (8)改变为另外一个压力值
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