Parker派克DSDU系列先导式溢流阀Parker派克DSDU系列先导式溢流阀通过压力口的开启使油液流回油箱来限定系统压力。该结构系列的阀有平稳的流量-压力特性曲线，用于蓄能器系统安全。该类阀经过TUV（德国技术监控协会）校准并颁发证书。相应的TUV证书随阀一同供货。DSDU1072E16KDSDU1072E25EDSDU1072E25GDSDU1072E32GDSDU1072E32KDSDU1078E25KDSDU1078E32GDSDU1072E25KDSDU1078E25EDSDU1078E16EDSDU1078E16GTUEVF230230BARDSDU1078E16GTUEVF215190BARDSDU1078E16GTUEVF230250BARDSDU1078E16KTUEVF280315BARDSDU1078E16KTUEVF280350BARDSDU1078E16GTUEVF215200BARDSDU578P20GTUEVF300200BARDSDU578P20GTUEVF300180BARDSDU578P20KTUEVF370330BARDSDU578P20GTUEVF300190BARDSDU578P20GTUEVF320230BARDSDU578P20GTUEVF320210BARDSDU578P20KTUEVF370315BARDSDU578P20KTUEVF370350BARDSDU578P20ETUEVF240110BARDSDU578P20ETUEVF265160BARDSDU578P20ETUEVF240120BARDSDU1078E25GTUEVF355250BARDSDU1078E25GTUEVF23590BARDSDU1078E25GTUEVF310190BARDSDU1078E25KTUEVF390280BARDSDU1078E25GTUEVF355210BARDSDU1078E25KTUEVF400350BARDSDU1078E32G14121506(120BAR)DSDU1078E32GX672TUEVF800250BDSDU1078E32KTUEVF900280BARDSDU1078E32GTUEVF800240BARDSDU1078E32ETUEVF50070BARDSDU1078E32KTUEVF950315BARDSDU1078E32GTUEVF750200BARDSDU1078E32KTUEVF950330BARDSDU1078E32ETUEVF640130BARDSDU1078E32ETUEVF640160BARDSDU1078E32ETUEVF55080BARDSDU1078E32KTUEVF900300BARDSDU1078E32KTUEVF950350BARDSDU1078E32GTUEVF750180BARDSDU1078E32GTUEVF800250BARDSDU1078E32ETUEVF50050BAR)