卸荷溢流阀的主要功能是自动控制泵的卸荷或加载。鉴于卸荷溢流阀的功用，要求卸荷压力与加载压力之间存在一定差别。差值过小，则泵的卸荷与加载动作过于频繁；差值过大，则系统压力变化太大。
加载压力与卸荷压力的差值是卸荷溢流阀的重要性能指标，一般加载压力为卸荷压力的85%左右。其性能与溢流阀相同
R5VL A1 比例压力阀 PDMP11-44/G24
DPHI-2716H9-X 24DC电液换向阀 DPHI-2716H9-X 24DC电磁阀 DPHI-2716H9-X 24DC
DPHHWP-X 24DC 31电液换向阀 DPHHWP-X 24DC 31电磁阀 DPHHWP-X 24DC 31
DPHD-X 24DC BACP1200S5N PILOT OPERATED CHECK
BACP1200S5N-V PILOT OPERATED CHECK
BACP600S40B PILOT OPERATED CHECK
BACP600S40M PILOT OPERATED CHECK
BACP600S40N PILOT OPERATED CHECK
BACP600S5B PILOT OPERATED CHECK
BACP600S5M PILOT OPERATED CHECK
BACP600S5N PILOT OPERATED CHECK
BC10MB PRESSURE CONTROL VALV
BC10MF PRESSURE CONTROL VALV
BC10MHV 1 1/4 COUNTERBALANCE
BC10MM PRESSURE CONTROL VALV
BC10PH PRESSURE CONTROL VALV
BC10PHV PRESSURE CONTROL VALV
BC10PM PRESSURE CONTROL VALV
BC10PMV PRESSURE CONTROL VALV
BC10PZ PRESSURE CONTROL VALV
BC3MB PRESSURE CONTROL VALV
BC3MH 3/8 COUNTERBALANCE PC
BC3PB PRESSURE CONTR 31电液换向阀 DPHD-X 24DC 31电磁阀 DPHD-X 24DC 31
DPHX 24DC 31电液换向阀 DPHX 24DC 31电磁阀 DPHX 24DC 31
DPHD-X 24DC 53电液换向阀 DPHD-X 24DC 53电磁阀 DPHD-X 24DC 53
DPHE-X 24DC电液换向阀 DPHE-X 24DC电磁阀 DPHE-X 24DC
DPHFINC-X 24DC 52电液换向阀 DPHFINC-X 24DC 52电磁阀 DPHFINC-X 24DC 52
DPHX 24DC 53电液换向阀 DPHX 24DC 53电磁阀 DPHX 24DC 53
DPHI-3710D-X 24DC电液换向阀 DPHI-3710D-X 24DC电磁阀 DPHI-3710D-X 24DC
DPHD-X 24DC电液换向阀 DPHD-X 24DC电磁阀 DPHD-X 24DC
DPHI-3711DE-X 24DC电液换向阀 DPHI-3711DE-X 24DC电磁阀 DPHI-3711DE-X 24DC
DPHI-3711DS-X AC电液换向阀 DPHI-3711DS-X AC电磁阀 DPHI-3711DS-X AC
DPHI-3711D-X 24DC电液换向阀 DPHI-3711D-X 24DC电磁阀 DPHI-3711D-X 24DC
DPHI-3711FINC-X 24DC 52电液换向阀 DPHI-3711FINC-X 24DC 52电磁阀 DPHI-3711FINC-X 24DC 52