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威格士比例阀KHDG5V52C100NXVMU1H120阀对流量的控制可以分为两种：一种是开关控制：要么全开、要么全关，流量要么、要么小，没有中间状态，如普通的电磁直通阀、电磁换向阀、电液换向阀。另一种是连续控制：阀口可以根据需要打开任意一个开度，由此控制通过流量的大小，这类阀有手动控制的，如节流阀，也有电控的，如比例阀、伺服阀。所以使用比例阀或伺服阀的目的就是：以电控方式实现对流量的节流控制（当然经过结构上的改动也可实现压力控制等），既然是节流控制，就必然有能量损失，伺服阀和其它阀不同的是，它的能量损失更大一些，因为它需要一定的流量来维持前置级控制油路的工作。
美国VICKERS威格士比例阀现货型号
DG4V-3-6C-MUH760库存9
DG4V-5-6CJ-MUH620
VICKERS比例阀DG5S4-046C-T-MUH5-60库存6
DGFN0650
DGMPC-3-ABK-41
DGMPC3ABMBAM41
DGMDC-3-X-BK-41
DG3VP-3-103A-V-M-U-H-10
DGMX2-3-PA-CW-B40
DGMX2-3-PP-BH-B40
DGMX2-5-PP-BW-B-30
CVCS16D3B2910
RCG-10B1-30
KCG3160DZMUHL10
PVH131R13AF30B25200000100AB010A
PVXS180MRDF0000000
PVH131R13AF30A250000001001
DGMPCBKBAK30
DGMX23PPBWB40
DGMFN5XA2WB2W30
DGMX25PPFWB30
DG3VP3102AVMUH10
威格士比例阀KHDG5V52C100NXVMU1H120
DGMX23PPBWB40EN13
KBDG5V-7-33C170N-M1-PE7-H1-10
CG2V 6CW 10
CVCS32PCB2910
DGPC06AB51
KCG3350DZMUH110
DG17V36C60
ECT06B10TB
KDG5V733C170NEXVMUH110
PVM131ER10GS02AAA28000000A0A
KHDG5V52C100NXVMU1H120
RV510S050
EFN1011B
CV110P030
KBDG5V-5-2C90NTM1PE7H110
KBSDG4V392L12M1PE7H710
CVI25D10H40
KFTG4V-5-2B70NZVMU1H720
EEAPAM119A10
DGMFN5YA2W30
KHDG5V-8-33C270NEXVMU1H12
DG4V58CJVMUH620
PVH74QICRSF1S10C2531
PVM018ER02AS02AAA2800000000A
KFDG4V32C28SZMU1H620
EURG210F13UG
DGMX23PABWS40
CVCS25UB29W25011
DGMFN3XA2WB2W41
DG17V36N60
CVI32D16H40
02-396732 KDG5V10-33C550N310EXVMUH111
02-332469 KDG5V733C170NXTMUH110
02-359464 KDG5V-7-2C180N100MUH110
SBV1112C024DGH
美国VICKERS威格士比例阀特价型号
KDG5V-7-2C180N100-EX-M-U-H1-10
KDG4V333C30VMUH760
KDG4V-5-2C50N-Z-M-U-H7-30
KDG4V3-33C20N-Z-M-U-H7-60
KDG5V-7-33C170N-T-HVMU H1-10
KDG5V-7-33C170N-X-T-M-U-H1-10
KDG4V533C50NZMUH730
KDG5V1033C550N310EXVMUH111
KDG5V833C330NEXVMUH120
KDG4V52C65SZMUH630
KDG5V533C60N40VMUH110
KDG4V3S2C08NMUH560
CG5V6FKDMUH711
KDG5V72C180N100TMUH110
KDG5V833C330NEMUH120
KDG4V32C20NZMU1H760
KDG5V733C170NTHMUH110
KDG5V-7-2C180N-X-T-H-MUH1-10
KDG5V-10-33C550N-EX-V-M-U-H1-10
KDG5V-5-33C60N40-T-M-U-H-1-10
KDG5V733C170N100TMUH110
KDG5V833C330N200EMUH120
KDG5V-5-33C80N-X-T-M-U-H1-10
KDG5V833C330NTHMUH120
KDG5V733C170NXTMUH110
KDG5V533C60N40TVMUH110
KDG4V333C30MUH760
KDG4V3S2C15SMUH560
KDG4V533C50NHMUHA730
KDG5V72C180N100EMUH110
KDG5V72C180N100EVMUH110
KDG5V1033C550N310EMUH111
KDG4V333C13NZMUH760
KDG5V533C80NEMUH110
威格士比例阀KHDG5V52C100NXVMU1H120
KDG4V52C30NZVMUH730
KDG5V72C180NVMUH110
KDG5V52C90NXMUH110
KDG5V533C80NTMUH110
KDG4V52C65SZMU1H630
KDG5V52C90NTMUH110
KDG5V72C180N100MUH110
KDG5V72C180NXMUH110
KDG4V333C30HMUH760
KDG4V533C30NZMUH730
KDG4V3S33C08AMUG560
KDG5V733C170NEXVMUH110
KDG5V733C130N65XTVMUH110
KDG5V833C330N200TMUH120
KDG4V333C20NMUH760
DG17V-3-2N-60
DG18V-3-2A-B-60
DG4V-3-OBL-MUH7-60
DGMX2-5-PP-AWB30
DGMX2 5 PA BW B 30
DG17V4-012N-10
DG4V-3-0B-M-U-A6-60
DG4V-3S-8C-M-U-H5-61
DG4V-3-0A-M-U-H7-60
DG4V-3-7C-M-U-H7-60
DG4V-3S-2AL-M-U-H5-60
威格士比例阀KHDG5V52C100NXVMU1H120
DG4V-5-31BJ-MU-H6-20
DG5V-H8-2C-U6-H5-30
SV4100024DG
DG5V-H8-8C-E-T-VM-U-H7-21
KBFDG5V-7-33C160N-X-M2-PE7-H1-10
KBFDG5V-7-2C200N-X-M1-PE7-H4-10
DG4V-3-6N-M-U-C6-60
DG4V-5-3C-M-U-C6-20