??MRQA型閥是一種具有自動卸荷功能的溢流式安全閥。當系統壓力達到設定值時，該閥可使油泵自動卸荷。當系統壓力下降到設定值的68%或78%時，泵重新開始工作。為保證以上工作，必須使用蓄能器（見液壓原理圖）以保證系統壓力。集成在閥板中或者疊加在MRQA/C型閥中的單向閥，可以阻止蓄能器在閥打開時卸荷。該系統可保持系統壓力，避免油液發熱，并減小能耗。在不減小連接尺寸的情況下，建議蓄能器盡可能的靠近MRQA閥安裝。—工作周期取決于泵的流量、蓄能器容量和預充壓力，以及系統工作需要的流量。MRQA-3/1/M/C/42VMRQA-5/1/M/C/42VMRQA-6/1/M/C/42VMRQA-3/2/M/C/42VMRQA-5/2/M/C/42VMRQA-6/2/M/C/42VCR2-22N-KCR3-22N-KCR4-22N-KCR5-22N-KCR6-22N-KCR2-22V-KCR3-22V-KCR4-22V-KCR5-22V-KCR6-22V-KCRQ3-M1-12VCRQ4-M1-12VCRQ5-M1-12VCRQ6-M1-12VCRQ3/12CRQ4/12CRQ5/12CRQ6/12CD1-W3/M1/10VCD1-W3/10CD1-W4/10CD1-W5/10CD1-W6/10RM2-W3/31N/KRM2-W4/31N/KRM2-W5/31N/KRM2-W6/31N/KRM3-W3/30N/M1RM3-W4/30N/M1RM3-W5/30N/M1RM3-W6/30N/M1RQ5-W3M/41VRQ5-W5M/41VRQ5-W6M/41VRQ7-W3M/41VRQ7-W5M/41VRQ7-W6M/41VRQM5-W3AM/60N-K1/CMRQM5-W3/A/51-A230RQM5-W5/A/51-D24RQM5-W6/D/51-A230RQM5-W3/B/51-A230RQM7-W3A-60N-D12-K1CMRQ3-P3/41RQ3-P5/41PQ3-P6/41RQ5-P3/41RQ5-P5/41RQ5-P6/41RQ7-P3/41RQ7-P5/41RQ7-P6/41RQM（電磁式）RQM3-P5/A/60N-A230K1RQM3-P5/A/60N-A110K1RQM3-P5/A/60N-D24K1RQM3-P5/M/60N-A230K1RQM3-P5/M/60N-D24K1RQM3-P6/A/60N-A230K1RQM3-P6/A/60N-A110K1RQM3-P6/A/60N-D24K1RQM3-P6/M/60N-A230K1RQM3-P6/M/60N-D24K1RQM5-P6/A/60N-A230K1RQM5-P6/A/60N-A110K1RQM5-P6/A/60N-D24K1RQM5-P6/M/60N-A230K1RQM5-P6/M/60N-D24K1RQM5-P5/A/60N-A230K1RQM5-P5/A/60N-A110K1RQM5-P5/A/60N-D24K1RQM5-P5/M/60N-A230K1RQM5-P5/M/60N-D24K1RQM7-P5/A/60N-A230K1RQM7-P5/A/60N-A110K1RQM7-P5/A/60N-D24K1RQM7-P5/M/60N-A230K1RQM7-P5/M/60N-D24K1RQM7-P6/A/60N-A230K1RQM7-P6/A/60N-A110K1RQM7-P6/A/60N-D24K1RQM7-P6/M/60N-A230K1RQM7-P6/M/60N-D24K1RQM3-P5/A/60N-A230K1RQM3-P5/A/60N-A110K1RQM3-P5/A/60N-D24K1RQM3-P5/M/60N-A230K1RQM3-P5/M/60N-D24K1RQM3-P6/A/60N-A230K1RQM3-P6/A/60N-A110K1RQM3-P6/A/60N-D24K1RQM3-P6/M/60N-A230K1RQM3-P6/M/60N-D24K1RQM5-P6/A/60N-A230K1RQM5-P6/A/60N-A110K1RQM5-P6/A/60N-D24K1RQM5-P6/M/60N-A230K1RQM5-P6/M/60N-D24K1RQM5-P5/A/60N-A230K1RQM5-P5/A/60N-A110K1RQM5-P5/A/60N-D24K1RQM5-P5/M/60N-A230K1RQM5-P5/M/60N-D24K1RQM7-P5/A/60N-A230K1RQM7-P5/A/60N-A110K1RQM7-P5/A/60N-D24K1RQM7-P5/M/60N-A230K1RQM7-P5/M/60N-D24K1RQM7-P6/A/60N-A230K1RQM7-P6/A/60N-A110K1RQM7-P6/A/60N-D24K1RQM7-P6/M/60N-A230K1RQM7-P6/M/60N-D24K1壓力補償器PCDK6PCK06-PV/11NPCK06-P4/11NPCK06-P8/11NPCK06-PTV/11NPCK06-PT4/11NPCK06-PT8/11NRQR3-P3/1/I/M/42VRQ3-P3/41RQ3-P5/41PQ3-P6/41RQ5-P3/41RQ5-P5/41RQ5-P6/41RQ7-P3/41RQ7-P5/41RQ7-P6/41RQA-3PRQR3-P3/2/40意大利RQA5-P3/2/40RQA7-P3/2/40RQM3-P5/A/60N-A230K1RQM3-P5/A/60N-A110K1RQM3-P5/A/60N-D24K1RQM3-P5/M/60N-A230K1RQM3-P5/M/60N-D24K1RQM3-P6/A/60N-A230K1RQM3-P6/A/60N-A110K1RQM3-P6/A/60N-D24K1RQM3-P6/M/60N-A230K1RQM3-P6/M/60N-D24K1RQM5-P6/A/60N-A230K1RQM5-P6/A/60N-A110K1RQM5-P6/A/60N-D24K1RQM5-P6/M/60N-A230K1RQM5-P6/M/60N-D24K1RQM5-P5/A/60N-A230K1RQM5-P5/A/60N-A110K1RQM5-P5/A/60N-D24K1RQM5-P5/M/60N-A230K1RQM5-P5/M/60N-D24K1RQM7-P5/A/60N-A230K1RQM7-P5/A/60N-A110K1RQM7-P5/A/60N-D24K1RQM7-P5/M/60N-A230K1RQM7-P5/M/60N-D24K1RQM7-P6/A/60N-A230K1RQM7-P6/A/60N-A110K1RQM7-P6/A/60N-D24K1RQM7-P6/M/60N-A230K1RQM7-P6/M/60N-D24K1Z3P5R/C/22VZ5P5R/C/22VS3-P3/C/20VS3-P4/C/20VS3-P5/C/20VS3-P6/C/20VS5-P3/C/20VS5-P4/C/20VS5-P5/C/20VS5-P6/C/20VU3-P3/C/20VU3-P4/C/20VU3-P5/C/20VU3-P6/C/20VT3-P3/C/20VT3-P4/C/20VT3-P5/C/20VT3-P6/C/20VX3-P3/C/20VX3-P4/C/20VX3-P5/C/20VX3-P6/C/20VU5-P3/C/20VU5-P4/C/20VU5-P5/C/20VU5-P6/C/20VDZC5-070/10N-II/K1DZC5-070/10N-EE/K1DZC5-140/10N-EE/K1DZC5-140/10N-EE/K1DZC5-210/10NIE/K1DZC7-210/10NIE/K1DDC2-10-J-20-22DZC7-210/10NIE/K1DZC7-140/10V/II/K11DZC7-210/10V/II/K11DZC8-070/10V/II/K11DZC8-070/10N-EE/K1T5-P3/C/20VT5-P4/C/20VT5-P5/C/20VT5-P6/C/20V平衡閥ZC2-P3/M1/51ZC2-P4/M1/51ZC2-P5/M1/51ZC07-P3/51ZC07-P4/51ZC07-P5/51ZC4-P3/51ZC4-P4/51ZC4-P5/51ZC5-P3/51ZC5-P4/51ZC5-P5/51X5-P3/C/20VX5-P4/C/20VX5-P5/C/20VX5-P6/C/20VRQR5-P3/2/40