A10VSO28DR/31R-PPA12N00

武穴黎翔机电设备有限公司，询价联系人：何女士

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

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A10VSO10DR/52R-PPA14N00    力士乐Rexroth
A10VSO18DFR/31R-PPA12N00
A10VSO18DFR1/31R-PPA12N00
A10VSO28DR/31R-PPA12N00
A10VSO28DFR1/31R-PSC12N00
A10VSO28DFR1/31R-PPA12N00
A10VSO45DFR1/32R-VPB12N00
A10VSO45DR/31R-PPA12N00
A10VSO45DFR/31R-PPA12N00
A10VSO71DFR1/32R-PPA12N00
A10VSO71DFR1/31R-PRA12N00
A10VSO71DFR/31R-PRA12N00
A10VSO71DR/31R-PPA12N00
A10VSO71DR/31R-PRA12KB5-SO512
E-A10VSO71DR/31R-PPA13N00
A10VSO100DR/31R-PPA12N00
A10VSO100DFR1/31R-PPA12N00
A10VSO140DR/31R-PPB12N00
A10VSO140DR/32R-PPB12N00
A10VSO140DR/31R-VPA12N00
A10VSO140DFR1/31R-PPB12N00
A10VSO140DR/31R-VPB12N00
A10VSO140DFLR/31R-PPB12N00
A10VSO140DR/32R-VPB12N00-SO102
A4VSO250LR2N/30R-PPB13N00
A4VSO250DR/30R-PPB13N00
E-A4VSO250DR/30R-PPB13N00
A4VSO180DR/22R-PPB13N00
A4VSO180DSR/30R-PPA12N00
A4VSO125DR/30R-PPB13N00
，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。F12-080-LF-IV-K-000-000-0
F12-080-LS-SH-S-000-000-0
F12-080-LS-SH-T-000-000-0
F12-080-LS-SH-U-000-000-0
F12-080-LS-SV-S-000-000-0
F12-080-LS-SV-S-252-000-0
F12-080-LS-XH-X-255-000-0
F12-080-MF-CE-C-000-000-0
F12-080-MF-CE-C-000-L06-P
F12-080-MF-CH-C-000-000-0
F12-080-MF-CH-C-000-000-P
F12-080-MF-CH-C-000-L06-0
F12-080-MF-CH-C-000-L06-P
F12-080-MF-CH-C-000-L06-S
F12-080-MF-CH-K-000-000-0
F12-080-MF-CV-C-000-000-0
F12-080-MF-CV-C-000-L01-0F12-080-MF-CV-C-000-L01-P
F12-080-MF-IE-D-000-000-0
F12-080-MF-IE-D-000-L01-0
F12-080-MF-IH-D-000-000-0
F12-080-MF-IH-D-000-000-S
F12-080-MF-IH-D-000-L01-0
F12-080-MF-IH-D-000-L01-S
F12-080-MF-IH-D-000-L04-0
F12-080-MF-IH-K-000-000-0
F12-080-MF-IH-K-000-000-P
F12-080-MF-IH-K-000-000-S
F12-080-MF-IH-K-000-L00-S
F12-080-MF-IH-K-000-L01-0
F12-080-MF-IH-K-000-L04-0
F12-080-MF-IH-K-000-L08-0
F12-080-MF-IH-Z-000-000-0
F12-080-MF-IH-Z-000-L05-0
F12-080-MF-IH-Z-000-L05-0
F12-080-MF-IH-Z-209-000-0
F12-080-MF-IN-D-000-000-S
F12-080-MF-IN-K-000-000-0
F12-080-MF-IN-K-000-000-S
F12-080-MF-IN-K-000-L08-0
F12-080-MF-IV-D-000-000-0
F12-080-MF-IV-D-000-000-P
F12-080-MF-IV-K-000-000-0
F12-080-MF-IV-K-000-000-S
F12-080-MF-IV-K-000-L01-0
F12-080-MF-IV-K-000-L01-S
F12-080-MF-IV-K-000-L10-0
F12-080-MS-SE-S-000-000-0
F12-080-MS-SE-S-289-000-0
F12-080-MS-SE-U-000-000-0
F12-080-MS-SE-U-239-000-0
F12-080-MS-SH-S-000-000-0
F12-080-MS-SH-S-000-000-S
F12-080-MS-SH-S-000-L01-0
F12-080-MS-SH-S-000-L01-S
F12-080-MS-SH-T-000-000-0
F12-080-MS-SH-T-000-000-P
F12-080-MS-SH-T-000-000-S
F12-080-MS-SH-T-000-L01-0
F12-080-MS-SH-T-000-L01-P
F12-080-MS-SH-T-000-L01-S
F12-080-MS-SH-T-256-000-0
F12-080-MS-SH-U-000-000-0
F12-080-MS-SH-U-000-000-S
F12-080-MS-SH-U-000-L01-0
F12-080-MS-SH-U-000-L06-0
F12-080-MS-SH-U-000-L09-0
F12-080-MS-SN-S-000-000-0
F12-080-MS-SN-S-000-L01-0
F12-080-MS-SN-T-000-000-0
F12-080-MS-SN-T-000-L07-0
F12-080-MS-SN-U-000-000-0
F12-080-MS-SV-S-000-000-0
F12-080-MS-SV-S-000-L01-0
F12-080-MS-SV-T-000-000-0
F12-080-MS-SV-T-000-000-P
F12-080-MS-SV-T-000-000-S
F12-080-MS-SV-U-000-000-0
F12-080-MS-SV-U-000-L01-0
F12-080-MS-XE-X-255-L01-0
F12-080-MS-XH-X-255-000-0
F12-080-MS-XN-X-254-000-0
F12-080-MU-SN-T-000-000-0
F12-080-MU-XH-X-254-000-0
F12-080-RF-IH-D-000-000-0
F12-080-RF-IH-K-000-000-0
F12-080-RF-IN-K-000-000-0
F12-080-RF-IV-K-000-000-0
F12-080-RF-IV-K-000-L01-0
F12-080-RS-SH-S-000-000-0
F12-080-RS-SH-T-000-000-0
F12-080-RS-SH-T-000-000-S
F12-080-RS-SH-T-000-L07-0
F12-080-RS-SH-U-000-000-0
F12-080-RS-SH-U-000-L01-0
F12-080-RS-SV-T-000-000-0
F12-080-RS-SV-U-000-000-0
F12-080-RS-XH-X-254-000-0
F12-080-RS-XH-X-255-000-0
F12-090-MF-CH-C-000-000-0
F12-090-MF-CV-C-000-000-0
F12-090-MF-IH-D-000-000-0
F12-090-MF-IH-D-000-L01-0
F12-090-MF-IH-D-209-000-0
F12-090-MF-IH-K-000-000-0
F12-090-MF-IV-K-000-000-0
F12-090-MS-SH-S-000-000-0
F12-090-MS-SH-T-000-000-0
F12-090-MS-SH-U-000-000-0
F12-090-MS-SV-S-000-000-0
F12-090-MS-SV-T-000-000-0
F12-090-MS-XH-X-255-000-0
F12-090-MS-XV-X-255-000-0
F12-110-LF-IH-D-000-000-0
F12-110-LF-IH-K-000-000-0
F12-110-LF-IN-K-000-000-0
F12-110-LF-IV-K-000-000-P
F12-110-LS-SH-S-000-000-0
F12-110-LS-SH-T-000-000-0
F12-110-LS-SV-S-000-000-0
F12-110-MF-CE-C-000-000-0
F12-110-MF-CH-C-000-000-0
F12-110-MF-CH-C-000-000-P
F12-110-MF-CH-C-000-000-S
F12-110-MF-CH-C-326-000-0
F12-110-MF-CN-C-000-000-0
F12-110-MF-CV-C-000-000-0
F12-110-MF-CV-C-000-000-P
F12-110-MF-IE-D-000-000-0
F12-110-MF-IH-D-000-000-0
F12-110-MF-IH-D-000-000-P
F12-110-MF-IH-D-000-000-S
F12-110-MF-IH-D-501-000-0
F12-110-MF-IH-K-000-000-0
F12-110-MF-IH-K-000-000-P
F12-110-MF-IH-K-000-000-S
F12-110-MF-IH-Z-000-000-0
F12-110-MF-IN-D-000-000-0
F12-110-MF-IN-K-000-000-0
F12-110-MF-IV-D-000-000-0
F12-110-MF-IV-K-000-000-0
F12-110-MF-IV-K-507-L01-0
F12-110-MS-SE-S-000-000-0
F12-110-MS-SH-S-000-000-0
F12-110-MS-SH-T-000-000-0
F12-110-MS-SH-T-000-000-S
F12-110-MS-SH-T-507-L01-0
F12-110-MS-SH-T-508-L05-0
F12-110-MS-SN-S-000-000-0
F12-110-MS-SN-T-000-000-0

伺服阀其实缺点极多：能耗浪费大、容易出故障、抗污染能力差、价格昂贵等等等等，好处只有一个：动态性能是所有液压阀中最高的。就凭着这一个优点，在很多对动态特性要求高的场合不得不使用伺服阀，如飞机火箭的舵机控制、汽轮机调速等等。动态要求低一点的，基本上都是比例阀的天下了A10VSO45DFR1/31R-PPA12N00
A10VSO45DFR1/32R-VPB12N00
A10VSO45DR/31R-PPA12N00
A10VSO45DR/31R-PPA12K25
A10VSO45DFR1/31R-PPA12N00
A10VSO58DFR1/31R-PPA12N00
A10VS045DFR1/31RPPA12NOO
E-A10VSO45DFR1/31R-PPA12N00
A10VS045DFR/31R-PPA12NOO-SO32
A10VS045DR/31R-PPA12N00
A10VS045DR/52R-PC12N00
A10V045DFR1/31R-PSC62K02
A10VSO45DFR1/31R-PPA12N00
A10VS045DR/31RPPB12-NDD
。
一般说来，好像伺服系统都是闭环控制，比例多用于开环控制；其次比例阀类型要多，有比例压力、流量控制阀等，控制比伺服要灵活一些。从他们内部结构看，伺服阀多是零遮盖，比例阀则有一定的死区，控制精度要低，响应要慢。但从发展趋势看，特别在比例方向流量控制阀和伺服阀方面，两者性能差别逐渐在缩小，另外比例阀的成本比伺服阀要低许多，抗污染能力也强！A10VS0100DR/31R-PPA12N00
A10VS0100DR/32R-VPB22U99
A10VSO100DFR1/32R-VPB12N00
A10VSO100DFR1/31R-PPA12K
A10VSO100DFR1/31R-PPA12KB3
E-A10VSO100PFR1/31R-PPA12N00
A10VSO100DFR/31RPSB12K24
A10VSO100DR/31R-VPA12N00
A10VSO100DR/31R-PPA12N00
A10VS0100DFR1/31R-PPA12N00
A10VS0100DFR1/32R-VPB12N00
A10V0100DR/31R-PSC11N00
A10VS0100DR/31R-PTA12N00
A10VSO100DR/31R-PPA12N00
A10VSO100DFR1/32R-VPB12N00

A10VSO140DFR1/31R-PPB12N00
A10VSO140DFLR1/31R-PPB12KO1
A10VSO-140DR/31R-PPB12N00
E-A10VSO140DFR1/31R-PPA12N00
A10VSO140DFR1S/31RPPB12N00
A10VSO140DFR1/31R-PPB12N00
A10VS0140DFLR/31R-PPB12N00
A10VSO140DR/31R-PPB12N00
A10VS0140DRS/32R-VPB12N00
E-A10VSO140D/31R-PPB12N00
A10VSO140DFR1/31R-PPB12N00
A10VS0140DR/32R-VPB12N00
E-A10VSO140D/31R-PPB12N00
A10VSO140DR/31R-PPB12N00
A10VSO140DRS/32R-VPB12N00
A10VSO140DFR1/31R-PPB12N00
A10VSO140DFR1/32R-VPB12N00
A10VSO140DRS/32R-VPB12N00

A4VSO40LR2G/10R-PPB13N00 
A4VSO71DFR/10X-PPB13N00 
A4VSO71DR/10X-PPB13N00 
A4VSO71DRG/10X-PPB13N00 
A4VSO71LR2/10R-PPB13N00 
A4VSO71LR2D/10R-PPB13N00 
A4VSO125DFR/22R-PPB13N00 
A4VSO125DR/22R-PPB13N00 
A4VSO125DR/22R-VPB13N00 
A4VSO125LR2/22R-PPB13N00 
A4VSO125LR2G/22R-PPB13N00 
A4VSO125LR2N/22R-PPB13N00
A4VSO180LR2N/22R-PPB13N00 
A4VSO250DFR/30R-PPB13N00 
A4VSO250DR/30R-PPB13N00 
A4VSO250DRG/30R-PPB13N00 
A4VSO250LR2/30R-PPB13N00 
A4VSO250LR2G/30R-PPB13N00 
A4VSO250LR2N/30R-PPB13N00 
A4VSO180DFR/22R-PPB13N00 
A4VSO180DR/22R-PPB13N00