VICKERS电磁阀出来的先导油控制主换向阀阀芯的移动，使工作泵的来油进入动臂油缸实现动臂上升。比例先导减压阀的输出压力越大，控制主换向阀阀芯的位移越大，主换向阀通过的流量越大，动臂上升的速度越快。当操作手柄拉限位置时，手柄中的限位电磁铁通电，手柄在极限位置被吸合。动臂以zui大的速度上升，当升至动臂上位限位开关所限定的位置时，操作手柄限位电磁铁断电，手柄自动恢复到中位，动臂就可保持在所限定的位置。

VICKERS 油泵-叶片泵、柱塞泵、齿轮泵, 液压马达,电磁阀、液压销售，型号如下:PVH131R13AF30B1001AE010A 26004-RZC PVH74QIC-RSF-1S-10-C25V-31-057 DG3VP-3-102A-VM-U-H-10 DG5S-8-2A-T-M-U-H7-40 PVH131L16AF30A1AD100010 45V60A-1B22L 45V60A-1D22R 4CT-06-C-21 DG4V-5-22ALJ-M-U-H6-20 CT-06-C-50 PVH131R16AF30A1AD1AB010A PVH131R03AF30A1001AB010A DF10P1-16-5-20 PVH131L03AF30A100100010A DG4S4-016C-B-60 CF-16-C-10 DG4V-3S-0B-VM-U-H5-60 PVH131Q1C-RSF-13S-10-C25-31 FG-3-180-K-10 KBDG4V-5-33C-30N-Z-M1-PE7-H7-10 617948 CVCS-25-A-B29-W-10 CVI-25-F-2-M-10 CVCS-16-A-B29-W-10 CVI-16-F-2-M-10 PVB5-RSY-40-CC-12 02-178049 EEA-PAM-523-C-32 PVH074R01AA10A2001AB010A PVH131R13AF30A100100010A DG4V-5-2AJ-M-U-P6-20 DG4V-3-2A-M-U-P7-60 KTG4V-3S-2B08N-M-U1-H5-60-EN427 EPRV1-16-5.00-0-24DG PA5DG4S4LW-017C-B-60 DG4S4LW-012N-B-60 SV15-8-0P-0-24DGP PVH98QIC-RF-1S-10-CM7-31 PVH098R01AJ30A0001AB010A CVCS-40-C3-B29-W350-10 45V60AM-86BR 617471 PVQ45AR01AA10G00CD0A PVM131ER10GS04AAAA0A PVM074ER09GS04AAAA0A KFDG4V 3 2C20N Z M U1 H7 V10-1S5S-1C-10 CVI-25-D20-2-M-10-EN3 CVI 25 F 2 M 10 CVU-25-C3-B29-K-350-30 CVI-25-F-2-L-10-EN106 CVC-25-W-B29-10 CVC-25-D3-B29-10 KBSDG4V-3-92L-12-PH7-H7-10 POC1-10V-F-O-075 RV8A-10V-C-0-501