点击图片查看原图
询价电话：0713-6542758，18934630908
询价传真：0713-6542758
询价QQ: 736567721,704552157
R900925687 4WRAE10W1-30-22/G24N9K31/F1V
0811402141 DBETBEX-1X/315G24K31F1M
D634-371C R24K02MONSS2 PFE-31028/1DT ATOS 阿托斯叶片泵
PFE-31022/1DW ATOS 阿托斯叶片泵
PFE-31022/1DU ATOS 阿托斯叶片泵
PFE-31022/1DT ATOS 阿托斯叶片泵
PFE-31016/1DU ATOS 阿托斯叶片泵 伺服阀的主阀一般来说和换向阀一样是滑阀结构，只不过阀芯的换向不是靠电磁铁来推动，而是靠前置级阀输出的液压力来推动美国原装parker 电磁阀 过滤器 气缸 等全系列
parker PHS520S-8-24V-D
parker PHS520S-8-220V-D
PARKER AL320-10
PARKER PEC5-110V
PARKER PHS530S-10
parker PHS520S-8-220V
parker PHS510S-6-24V
parker PHS320S-8-24V-D
parker PHS540S-15-24V-L
parker PHS530C-10
parker PHS530S-10
parker PHS510S-6-24V-D-L
parker PHS520E-8
parker PHS520S-8-220V
parker PHS510S-6 220V-D
parker AFR420-15-AD41
Parker WV121S222NV I-1S-P3
parker PHS520S-8-24V
parker PHS520S-8-220V
parker PEC5-110V-D
parker PHS520S-8-220V
parker PHS520S-8-24V
parker PHS520S-8-24V
parker PHS520S-8-24V
parker PHS510S-6-220V-L
parker PHS540S-15-24V-L，这一点和电液换向阀比较相似，只不过电液换向阀的前置级阀是电磁换向阀，而伺服阀的前置级阀是动态特性比较好的喷嘴挡板阀或射流管阀。DDPB-1L-4-35-HV-2
DDPC-1L-4-10-HV-2
DDPC-1L-4-25-S-2+GALA1
DDPC-1L-4-04-S-2+GALA1
DDPC-1L-4-25-SV-2
DDPC-1L-4-02-S-2+GALA1
DDPC-1L-4-10-SV-2
DDPC-1L-4-25-HV-2
DDRB-7M-4-10-S-1
DDRB-7M-4-03-S-1
DDRB-7M-4-10-S-1+GAMA1
DDRB-7M-4-06-S-1
DDRB-7M-4-10-H-1
DDRB-7M-4-06-H-1
DDRB-7M-4-03-S-1+GAMA1
DDRB-7M-2-16-H-1
DDRB-7M-4-10-S-V-1
DDRB-7M-6-03-S-1
DDRB-7M-4-03-H-1
DDRB-7M-4-03-S-V-1
DDRB-7M-4-03-S-V-1+GAMA1
DDRB-7M-6-03-H-1
DDPC-1L-4-16-S-2
DDPC-1L-4-02-S-2
DDPC-1L-4-04-S-2
DDPC-1L-4-10-S-2
DDPC-1L-4-25-S-2
DDPC-1L-4-35-S-2
DDPC-1L-4-42-S-2
DDPC-1L-4-04-SV-2
DDPC-1L-4-25-SM-2
DDPC-1L-4-35-H-2
DDPC-1L-4-25-H-2
DDPC-1L-4-16-H-2
DDPC-1L-4-10-H-2
DDPC-1L-4-42-H-2
DDPC-1L-4-02-H-2
DDPC-1L-4-04-SV-2+GALA1
DDPC-1L-4-16-SV-2
DDPC-1L-4-10-H-2+GALA1
DDPC-1L-4-25-H-2+GALA1
DDPC-1L-4-35-S-2+GALA1
DDPC-1L-4-10-HV-2+GALA1
DDPC-1L-4-16-HV-2
DDPC-1L-4-04-H-2
DDRA-7L-10-02-S-1 M346
DDRA-7L-10-03-S-1
DDRA-7L-10-06-S-1
DDRA-7L-10-10-S-1
也就是说，伺服阀的主阀是靠前置级阀的输出压力来控制的，而前置级阀的压力则来自于伺服阀的入口p，假如p口的压力不足，前置级阀就不能输出足够的压力来推动主阀芯动作。
而我们知道，当负载为零的时候，如果四通滑阀完全打开，p口压力＝t口压力＋阀口压力损失（忽略油路上的其它压力损失），如果阀口压力损失很小，t口压力又为零，那么p口的压力就不足以供给前置级阀来推动主阀芯，整个伺服阀就失效了。所以伺服阀的阀口做得偏小，即使在阀口全开的情况下，也要有一定的压力损失，来维持前置级阀的正常工作。DDRA-7L-10-10-S-1
DDRA-7L-10-16-S-1
DDRA-7L-10-25-S-1
DDRA-7L-10-16-SV-1
DDRA-7L-10-06-S-1+GCLA1
DDRA-7L-10-10-S-1+GCLA1
DDRA-7L-10-10-H-1
DDRA-7L-10-25-S-1+GCLA1
DP-3-HN-2
DP-3-HM-2
DP-3-HL-2
DP-3-SN-2
DP-3-SM-2
DP-3-SL-2
DP-3-HNV-2
DP-3-HLV-2
DP-3-HMV-2
DPZ-3-SN-3
DPZ-3-SL-3
DPZ-3-SM-3
DPZ-3-3 BAUGRUPPE 65BAR
DVPA-2-10-SM-3 S290 M397
DVPA-2-10-SM-3 M263
DVPA-2-10-SN-2 M263
DVPB-1-16-35-H-1
DVPB-1-16-25-H-1
DVPB-1-16-10-H-1
DRPB-5-16-10-H-1
DVPA-1-16-35-SV-1
DVPB-1-16-25-SV-1
DVPB-1-16-25-HV-1
DRPB-5-16-35-SV-1
DRPB-5-16-25-H-1
DRPB-5-16-25-SV-1
DRPB-5-16-35-HV-1
DVPB-3-16-04L-S-1
DVPB-2-16-10-HV-1
DRPB-5-16-25-HV-1
DDPB-3D-10-SP-1
DVPB-1-16-04-S-1
DVPB-1-16-10-S-1
DVPB-1-16-25-S-1
DVPB-1-16-35-S-1
DVPB-1-16-42-S-1
DVPB-2-16-04-S-1
DVPB-2-16-10-S-1
DVPB-2-16-25-S-1
DVPB-2-16-35-S-1
DVPB-2-16-42-S-1
DVPB-3-16-04-S-1
DVPB-3-16-10-S-1
DVPB-3-16-25-S-1
DVPB-3-16-35-S-1
DRPB-5-16-04-S-1
DRPB-5-16-10-S-1
DRPB-5-16-25-S-1
DRPB-5-16-35-S-1
DRPB-5-16-16-S-1
DVPB-2-16-10-H-1
DRPB-5-16-35-H-1
DVPB-3-16-42-S-1
DVPB-3-16-16-S-1
DVPB-2-16-25-SV-1
DRPB-5-16-10-SV-1
DDPB-1C-10-SP-1
DDPB-1C-10-SOV-1
DDPB-1C-10-SP-1+DC-12-0
DDPB-1C-10-SL-1
DDPB-1C-10-SM-1
DDPB-1C-10-SN-1
DDPB-1C-10-SO-1
DDPB-1C-10-SMV-1
DDPB-1C-10-SM-1+DC-12-0
DDPB-3D-10-SLV-1
DDPB-3D-10-SL-1
DDPB-3D-10-SM-1
DDPB-3D-10-SN-1
DDPB-3D-10-SMV-1
DDPDB-3D-10SP-1
DDPDB-3D-10SN-1
DDPZ-3D-1030-S-1
DDPDB-3D-10SL-1
DDPB-1C-10-SO-1 M289
DDPDB-3D-10SM-1
DDPB-3D-10-SM-1+DDY-12-0
DDPB-1C-10-SNM-1
DDPB-1C-10-SNV-1
DVPA-1-10-HL-3+DC-12-0
DRPA-5-10-SNM-3
DVPA-1-10-SLLA-3
DVPA-1-10-SM-3 PLOMB
DRPA-5-10-SL-3 PLOMB
DVPA-1-10-SN-3
DVPA-1-10-SM-3
DVPA-1-10-SL-3
DVPA-2-10-SN-3
DVPA-2-10-SM-3
DVPA-2-10-SL-3
DVPA-3-10-SN-3
DVPA-3-10-SM-3
DVPA-3-10-SL-3
DVPA-RV-1-10-SN-3
DVPA-RV-1-10-SM-3
DVPA-RV-1-10-SL-3KM-013/210
KM-014/210
KM-014/350/30
KM-015/210
KQ-012
KQ-012/G
KQ-013
KQ-014
KQ-022
KQ-023
KR-003
KR-004
KR-012
KR-012/2
KR-013
KR-013/2
KR-014
KR-014/4
KR-016
LIDD-3 NG16
LIDEW1-2-1*24DC/WG
LIDEW1-3-1N24DC
LIMZO-A-1/210
LIMZO-A-2/210
LIMZO-A-3/210
LIQZ0-LE-322L4/Q(配SP-ZM-TP)
LIQZO-L-253/L4
LIQZO-L-323/L4
LIQZO-L-403/L4
LIQZO-L-503/L4
LIQZO-LE-253/L4/I
LIQZO-LE-323/L4/I
LIQZO-LE-403/L4/I
LIQZO-LE-503/L4/I
LIRA-1/210/V
LIRA-2/210/V
MAP-***
MAP/160
MAP-040
MAP-160/20
MAP-160/E
MAP-210/20
MAP-320
MAP-320/E
MAP-80
PFE-31016
PFE-31016-1DT
PFE-31022/1DT
PFE-31028
PFE-31028/1DU
PFE-31028-1DT
PFE-31036
PFE-31036/1D
PFE-31036/1DT
PFE-31044/1DU
PFE-41037
PFE-41041-10T
PFE-42070/1DV
PFE-42070/3DW
PFE-42070/3ST
PFE-51129/1DT 陆总 4950 现货
PFE-51129/3DT
PFE-51150/1DT
PFED-43045/016-1DVO
PFED-43070/036
PFED-43070/044
PFED-43085/036
PFEXD-42085-43056/016-3DVO
PFG-120
PFG-128
PFG-142
PFG-160
PFG-174
PFG-214/2O
PFG-218
PFG-221
PFG-327/D
PFG-340
PFR-202
PFR-203
PFR-308
PFRXC-518
POX-262
PVL-210
PVL-320
PVL-440
PVPC-C-3029/1D
PVPC-C-3029-/1D
PVPC-C-3029/1DC24
PVPC-C-4046/1D
PVPC-C-5073/1D
PVPC-L-3029/1D
PVPC-L-4046/1D
PVPC-L-5073/1D
PVPC-LW-5073/1D
PVPCX2E-CZ-3029/31016/1D
PVT-206
QV-06/1
QV-06/11
QV-06/16
QV-06/16-WG
QV-06/24
QV-06/6
QV-10/2
QV-20/2
QVHZO-A-06/36/24
QVHZO-A-6/12
QVKZOR-A-10/65
RMU-010/210
RZGO-A-010/100
RZGO-A-033/100
RZGO-A-033/210
RZGO-A-033/31531
RZGO-TERS-010/210
RZGO-TERS-PS-033/100
RZGO-TERS-PS-033/210
RZMO-A-010/100
RZMO-A-010/315
RZMO-A-010/315/24
RZMO-A-030/210
RZMO-AE-010/315
RZMO-P1-010/100
RZMO-P1-010/210
RZMO-TERS-PS-010/315
RZMO-TERS-PS-030/315
RZMO-TERS-PS-10/315/I
SC LI-25323
SC LI-25421
SC LI-32422
SC LI-40322
SC LI-40323
SC LI-50322
SC LI-50323
SC LI-63332
SCLI-16374PGP502A0008AV1P1NB1B1E1B1
PGP502A0008CP2D1NE3E2B1B1
PGP502A0008CV2P3XE2E2B1B1
PGP502A0012AH1D1VE3E2B1B1
PGP502A0012AV1P1NB1B1E1B1
PGP502A0012CP2D1NE2E2B1B1
PGP502A0012CP2D1NE3E2B1B1
PGP502A0012CV2P3XD3D3B1B1
PGP502A0012CV2P3XE2E2B1B1
PGP502A0012CV2P3XJ4J3B1B1
PGP502A0012CV2P4NE2E2B1B1
PGP502A0016AV1P1NB1B1E1B1
PGP502A0016CP2D1NE3E2B1B1
PGP502A0016CV2P3XE2E2B1B1
PGP502A0021AV1P1NB1B1E1B1
PGP502A0021CP2D1NE2E2B1B1
PGP502A0021CP2D1NE3E2B1B1
PGP502A0021CV1D1NE2E2B1B1
PGP502A0021CV2P3XE2E2B1B1
PGP502A0021CV2P3XJ4J3B1B1
PGP502A0021CV2P4NE2E1RDAA
PGP502A0025AV1P1NB1B1E1B1
PGP502A0025CP2D1NE2E2B1B1
PGP502A0025CP2D1NE3E2B1B1
PGP502A0025CV2P3XE3E2B1B1
PGP502A0033AV1P1NB1B1E1B1
PGP502A0033AV2P3XE3E2B1B1
PGP502A0033CP2D1NE3E2B1B1
PGP502A0033CP2D1VE3E2B1B1
PGP502A0033CV1P1NE1B1E1B1
PGP502A0033CV2P3XE3E2B1B1
PGP502A0036AV1P1NB1B1E1B1
PGP502A0036CP2D1NE2E2B1B1
PGP502A0036CP2D1NE3E2B1B1
PGP502A0043AV1P1NB1B1E1B1
PGP502A0043AV1P1NB1B1E2B1
PGP502A0043CP2D1NE3E2B1B1
PGP502A0043CP2D1VE3E2B1B1
PGP502A0043CV2P3XE3E2B1B1
PGP502A0048AV1P1NB1B1E1B1
PGP502A0058AV1P1NB1B1E1B1
PGP502A0058CP2D1NE3E2B1B1
PGP502A0062AV1P1NB1B1E1B1
PGP502A0062CP2D1NE3E2B1B1
PGP502A0062CV2P3XJ4J3B1B1
PGP502A0079AP2D1NJ4J3B1B1
PGP502A0079AV1P1NB1B1E1B1
PGP502A0079CP2D1NE3E2B1B1
PGP503A0008AP2D1NE2E2B1B1
PGP503A0008AP2D1NE3E2B1B1
PGP503A0008CH1D1NE3E2B1B1
PGP503A0008CH1H1NE2E1B1B1
PGP503A0008CH1H1NE2E2B1B1
PGP503A0008CP2D1NE2E2B1B1
PGP503A0008CP2D1NE3E2B1B1
PGP503A0008CP2D1NJ4J3B1B1
PGP503A0008CP2D1VE3E2B1B1
PGP503A0012AH1D1NE2E2RDAM
PGP503A0012AP2D1NE3E2B1B1
PGP503A0012AP2D1NJ4J3B1B1
PGP503A0012AV2P3XE2E2B1B1
PGP503A0012CH1D1NE3E2B1B1
PGP503A0012CH1H1ND3D2B1B1
PGP503A0012CH1H1NE3E2B1B1
PGP503A0012CP2D1NE2E2B1B1
PGP503A0012CP2D1NE3E2B1B1
PGP503A0012CP2D1NJ4J3B1B1
PGP503A0012CP2D1VE3E2B1B1
PGP503A0012CV2P3XE3E2B1B1
PGP503A0012CV2P3XJ4J3B1B1
PGP503A0012CV2P4NE2E2B1B1
PGP503A0016AP2D1NE3E2B1B1
PGP503A0016AP2D1NJ2J1B1B1
PGP503A0016AP3P1NE2B1B1B1
PGP503A0016CH1D1NE3E2B1B1
PGP503A0016CP1P5NG1G1B1B1
PGP503A0016CP2D1NE2E2B1B1
PGP503A0016CP2D1NE3E2B1B1
PGP503A0016CP2D1NJ2J1B1B1
PGP503A0016CP2D1NJ4J3B1B1
PGP503A0016CP2D1VJ4J4B1B1
PGP503A0016CV2P4NJ4J3B1B1
PGP503A0016CV3P3XE3E2B1B1
PGP503A0021AP2D1NJ4J3B1B1
