PFE-31016/1DU
武穴黎翔機(jī)電設(shè)備有限公司，詢價聯(lián)系人：何女士
詢價電話：0713-6542758，18934630908
詢價傳真：0713-6542758
詢價QQ: 736567721,704552157
R900925687 4WRAE10W1-30-22/G24N9K31/F1V
0811402141 DBETBEX-1X/315G24K31F1M
D634-371C R24K02MONSS2
也就是說，伺服閥的主閥是靠前置級閥的輸出壓力來控制的，而前置級閥的壓力則來自于伺服閥的入口p，假如p口的壓力不足，前置級閥就不能輸出足夠的壓力來推動主閥芯動作。
DHI-0711/SP-6-67-24DC 
DHI-0631/2/SP-667-24DC
DHI-0713/S-667-24DC SP-HP-65/A10
SP-HP-135/A10 DHI-0714/13 DHI-0710/13
E-ATR-6/400/I
MAP-040/20
E-ATR-6/400/I 
KM-014/210
HQ-012
KR-014
DK1-1631/2 220V SP-666
SP-ZM-7P
DKI-1711
DPZO-AE-3-73-D5/G
DPZO-LE-2-73-D5-I-G
KM-015/350
DHI-0613/2-X-24DC
DHI-0713/X-24DC
DHI-0731/X-24DC
DHI-075-1/2-X-24DC
DHI-1-71-3-X-24DC
DLOH-3A-U-X-24DC
DLOH-3C-U-X-24DC
DLOH-3C-O-X-24DC
DPHI-2631/2/H-X-24DC
DPHI-2713/H-X-24DC
DPHI-2-75-1/2/H/D-X-26DC
DPHI-3-71-3/H-X-27DC
而我們知道，當(dāng)負(fù)載為零的時候，如果四通滑閥完全打開，p口壓力＝t口壓力＋閥口壓力損失（忽略油路上的其它壓力損失）
PFG-120/D RO
PFG-128
PFG-128/D
PFG-128/D RO
PFG-135
PFG-135/D
PFG-135/D RO
PFG-142
PFG-142/D
PFG-142/D ROPFG-149
PFG-149/D
PFG-149/D RO
PFG-160
PFG-160/D
PFG-160/D RO
PFG-174
PFG-174/D
PFG-174/D RO
PFG-187
PFG-187/D
PFG-187/D RO
PFG-199
PFG-199/D
PFG-199/D RO
PFG-207
PFG-207/D
PFG-207/D RO
PFG-210
PFG-210/D
PFG-210/D RO
PFG-211
PFG-211/D
PFG-211/D RO
PFG-211/S
PFG-214
PFG-214/D
PFG-214/D R0
PFG-214/S
PFG-218
PFG-218/D
PFG-218/D RO
PFG-221
PFG-221/D
PFG-221/D RO
PFG-227
PFG-227/D
PFG-227/D RO
PFG-327
PFG-327/D
PFG-327/D RO
PFG-340
PFG-340/D
PFG-340/D RO
PFG-354
PFG-354/D
PFE-31016/1DU
PFE-31022/1DT
PFE-31022/1DU
PFE-31022/1DW
PFE-31028/1DT
PFE-31028/1DU
PFE-31028/1DV
PFE-31036/1DT
PFE-31036/1DU 20
PFE-31036/1DV 20
PFE-31036/1DW
PFE-31044/1DT 20
PFE-31044/1DU 20
PFE-31044/1DV 20
PFE-32028/3DT 20
PFE-32028/3DV 20
PFE-32036/3DT
PFE-41037/1DU 20
PFE-41045/1DT
PFE-41045/1DU 20
PFE-41045/1DW 20
PFE-41056/1DT
PFE-41056/1DU 20
PFE-41056/1DV 20
PFE-41056/1DW 20
PFE-41070/1DT
PFE-41070/1DV 20
PFE-41070/2DT 20
PFE-41070/2DV 20
PFE-41085/1DT 20
PFE-41085/1DW 20
，如果閥口壓力損失很小，t口壓力又為零，那么p口的壓力就不足以供給前置級閥來推動主閥芯，整個伺服閥就失效了
marzocchi
產(chǎn)品名：MARZOCCHI液壓馬達(dá)ALM3-R-110-E1規(guī)格：ALM3-R-110-E1品牌：MARZOCCHI
產(chǎn)品名：MARZOCCHI液壓馬達(dá)ALM3-R-120-E1規(guī)格：ALM3-R-120-E1品牌：MARZOCCHI
產(chǎn)品名：MARZOCCHI液壓馬達(dá)ALM3-R-135-E1規(guī)格：ALM3-R-135-E1品牌：MARZOCCHI
產(chǎn)品名：MARZOCCHI液壓馬達(dá)ALM1-R-5-E1規(guī)格：ALM1-R-5-E1品牌：marzocchi
產(chǎn)品名：MARZOCCHI液壓馬達(dá)ALM1-R-6-E1規(guī)格：ALM1-R-6-E1品牌：MARZOCCHI
產(chǎn)品名：MARZOCCHI液壓馬達(dá)ALM1-R-7-E1規(guī)格：ALM1-R-7-E1品牌：MARZOCCHI
產(chǎn)品名：MARZOCCHI液壓馬達(dá)ALM1-R-9-E1規(guī)格：ALM1-R-9-E1品牌：MARZOCCHI
產(chǎn)品名：MARZOCCHI液壓馬達(dá)ALM1-R-11-E1規(guī)格：ALM1-R-11-E1品牌：MARZOCCHI
產(chǎn)品名：MARZOCCHI液壓馬達(dá)ALM1-R-13-E1規(guī)格：ALM1-R-13-E1品牌：MARZOCCHI
產(chǎn)品名：MARZOCCHI液壓馬達(dá)ALM1-R-16-E1規(guī)格：ALM1-R-16-E1品牌：MARZOCCHI
產(chǎn)品名：MARZOCCHI液壓馬達(dá)ALM1A-R-4-E1規(guī)格：ALM1A-R-4-E1品牌：MARZOCCHI
產(chǎn)品名：MARZOCCHI液壓馬達(dá)ALM1A-R-5-E1規(guī)格：ALM1A-R-5-E1品牌：MARZOCCHI
產(chǎn)品名：MARZOCCHI液壓馬達(dá)ALM1A-R-6-E1規(guī)格：ALM1A-R-6-E1品牌：MARZOCCHI
產(chǎn)品名：MARZOCCHI液壓馬達(dá)ALM1A-R-7-E1規(guī)格：ALM1A-R-7-E1品牌：MARZOCCHI
產(chǎn)品名：MARZOCCHI液壓馬達(dá)ALM1A-R-9-E1規(guī)格：ALM1A-R-9-E1品牌：MARZOCCHI
產(chǎn)品名：MARZOCCHI液壓馬達(dá)ALM1A-R-11-E1規(guī)格：ALM1A-R-11-E1品牌：MARZOCCHI
產(chǎn)品名：MARZOCCHI液壓馬達(dá)ALM1A-R-13-E1規(guī)格：ALM1A-R-13-E1品牌：MARZOCCHI
產(chǎn)品名：MARZOCCHI液壓馬達(dá)ALM1A-R-16-E1規(guī)格：ALM1A-R-16-E1品牌：MARZOCCHI
產(chǎn)品名：MARZOCCHI齒輪泵ALPA2-D-16規(guī)格：ALPA2-D-16品牌：marzocchi
產(chǎn)品名：MARZOCCHI齒輪泵ALP3A-D-80-FG規(guī)格：ALP3A-D-80-FG品牌：marzocchi
產(chǎn)品名：MARZOCCHI齒輪泵ALPP2-D-9-FG規(guī)格：ALPP2-D-9-FG品牌：marzocchi
產(chǎn)品名：MARZOCCHI齒輪泵ALPA2A-D-20-FG規(guī)格：ALPA2A-D-20-FG品牌：marzocchi
產(chǎn)品名：MARZOCCHI齒輪泵ALP2A-D-22規(guī)格：ALP2A-D-22品牌：marzocchi
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產(chǎn)品名：MARZOCCHI齒輪泵K1PS4.2G規(guī)格：K1PS4.2G品牌：MARZOCCHI
產(chǎn)品名：MARZOCCHI齒輪泵GHPP3-S-94規(guī)格：GHPP3-S-94品牌：MARZOCCHI
。所以伺服閥的閥口做得偏小，即使在閥口全開的情況下，也要有一定的壓力損失，來維持前置級閥的正常工作。
伺服閥其實缺點極多：能耗浪費大、容易出故障、抗污染能力差、價格昂貴等等等等，好處只有一個：動態(tài)性能是所有液壓閥中最高的。就憑著這一個優(yōu)點，在很多對動態(tài)特性要求高的場合不得不使用伺服閥，如飛機(jī)火箭的舵機(jī)控制、汽輪機(jī)調(diào)速等等。動態(tài)要求低一點的，基本上都
，GHP1A2-D-6，GHP1A2-D-7，GHP1A2-D-9，GHP1A2-D-11，GHP1A2-D-13，GHP1A2-D-16，GHP1A2-D-20，GHP2-D-6，GHP2-D-9，GHP2-D-10，GHP2-D-12，GHP2-D-13，GHP2-D-16，GHP2-D-20，GHP2-D-22，GHP2-D-25，GHP2-D-30，GHP2-D-34，GHP2-D-37，GHP2-D-40，GHP2-D-50，GHP2A-D-6，GHP2A-D-9，GHP2A-D-10，GHP2A-D-12，GHP2A-D-13，GHP2A-D-16，GHP2A-D-20，GHP2A-D-22，GHP2A-D-25，GHP2A-D-30，GHP2A-D-34，GHP2A-D-37，GHP2A-D-40，GHP2A-D-50，GHP2A3-D-6，GHP2A3-D-9，GHP2A3-D-10，GHP2A3-D-12，GHP2A3-D-13，GHP2A3-D-16，GHP2A3-D-20，GHP2A3-D-22，GHP2A3-D-25，GHP2A3-D-30，GHP2A3-D-34，GHP2A3-D-37，GHP2A3-D-40，GHP2A3-D-50，GHP2BK1-D-6，GHP2BK1-D-9，GHP2BK1-D-10，GHP2BK1-D-12，GHP2BK1-D-13，GHP2BK1-D-16，GHP2BK1-D-20，GHP2BK1-D-22，GHP2BK1-D-25，GHP2BK1-D-30，GHP2BK1-D-34，GHP2BK1-D-37，GHP2BK1-D-40，
GHP2BK2-D-6，GHP2BK2-D-9，GHP2BK2-D-10，GHP2BK2-D-12，GHP2BK2-D-13，GHP2BK2-D-16，GHP2BK2-D-20，GHP2BK2-D-22，GHP2BK2-D-25，GHP2BK2-D-30，GHP2BK2-D-34，GHP2BK2-D-37，GHP2BK2-D-40，GHP2BK4-D-6，GHP2BK4-D-9，GHP2BK4-D-10，GHP2BK4-D-12，GHP2BK4-D-13，GHP2BK4-D-16，GHP2BK4-D-20，GHP2BK4-D-22，GHP2BK4-D-25，GHP2BK4-D-30，GHP2BK4-D-34，GHP2BK4-D-37，GHP2BK4-D-40，GHP2BK7-D-6，GHP2BK7-D-9，GHP2BK7-D-10，GHP2BK7-D-12，GHP2BK7-D-13，GHP2BK7-D-16，GHP2BK7-D-20，GHP2BK7-D-22，GHP2BK7-D-25，GHP2BK7-D-30，GHP2BK7-D-34，GHP2BK7-D-37，GHP2BK7-D-40，GHP3-D-30，GHP3-D-33，GHP3-D-40，GHP3-D-50，GHP3-D-60，GHP3-D-66，GHP3-D-80，GHP3-D-94，GHP3-D-110，GHP3-D-120，GHP3-D-135，GHP3A-D-30，GHP3A-D-33，GHP3A-D-40，GHP3A-D-50，GHP3A-D-60，GHP3A-D-66，GHP3A-D-80，GHP3A-D-94，GHP3A-D-110，GHP3A-D-120，GHP3A-D-135，GHP3A2-D-30，GHP3A2-D-33，GHP3A2-D-40，GHP3A2-D-50，GHP3A2-D-60，GHP3A2-D-66，GHP3A2-D-80，GHP3A2-D-94，GHP3A2-D-110，GHP3A2-D-120，GHP3A2-D-135，GHP3BK1-D-30，GHP3BK1-D-33，GHP3BK1-D-40，GHP3BK1-D-50，GHP3BK1-D-60，GHP3BK1-D-66，GHP3BK1-D-80，GHP35-D-66，GHP35-D-80，GHP35-D-94，GHP35-D-110，GHP35-D-120，GHP35-D-135，1PD1.6，1PD2，1PD2.5，1PD3.3，1PD4.2，1PD5，1PD5.8，1PD6.7，1PD7.5，1PD9.2，1PD11.5，
1PD1.6GAS，1PD2GAS，1PD2.5GAS，1PD3.3GAS，1PD4.2GAS，1PD5GAS，1PD5.8GAS，1PD6.7GAS，1PD7.5GAS，1PD9.2GAS，1PD11.5GAS，1PD1.6KA，1PD2KA，1PD2.5KA，1PD3.3KA，1PD4.2KA，1PD5KA，1PD5.8KA，1PD6.7KA，1PD7.5KA，1PD9.2KA，1PD11.5KA，
K1PD1.6G，K1PD2G，K1PD2.5G，K1PD3.3G，K1PD4.2G，K1PD5G，K1PD5.8G，K1PD6.7G，K1PD7.5G，K1PD9.2G，K1PD11.5G，KL1PD1.6G，KL1PD2G，KL1PD2.5G，KL1PD3.3G，KL1PD4.2G，KL1PD5G，KL1PD5.8G，KL1PD6.7G，KL1PD7.5G，KL1PD9.2G，KL1PD11.5G，
KF1PD1.6G，KF1PD2G，KF1PD2.5G，KF1PD3.3G，KF1PD4.2G，KF1PD5G，KF1PD5.8G，KF1PD6.7G，KF1PD7.5G，KF1PD9.2G，KF1PD11.5G，1BK4D1.6，1BK4D2，1BK4D2.5，1BK4D3.3，1BK4D4.2，1BK4D5，1BK4D5.8，1BK4D6.7，1BK4D7.5，1BK4D9.2，1BK4D11.5，
PFG-221/D RO
PFG-227
PFG-227/D
PFG-227/D RO
PFG-327
PFG-327/D
PFG-327/D RO
PFG-340
PFG-340/D
PFG-340/D RO
PFG-354
PFG-354/D
PFE-31016/1DU
PFE-31022/1DT
PFE-31022/1DU
PFE-31022/1DW
PFE-31028/1DT
PFE-31028/1DU
PFE-31028/1DV
PFE-31036/1DT
PFE-31036/1DU 20
PFE-31036/1DV 20
PFE-31036/1DW
PFE-31044/1DT 20
PFE-31044/1DU 20
PFE-31044/1DV 20
PFE-32028/3DT 20
PFE-32028/3DV 20
PFE-32036/3DT
PFE-41037/1DU 20
PFE-41045/1DT
PFE-41045/1DU 20
PFE-41045/1DW 20
PFE-41056/1DT
PFE-41056/1DU 20
PFE-41056/1DV 20
PFE-41056/1DW 20
PFE-41070/1DT
PFE-41070/1DV 20
PFE-41070/2DT 20
PFE-41070/2DV 20
PFE-41085/1DT 20
PFE-41085/1DW 20
PFE-42045/3DW 20
PFE-42056/3DU 20
PFE-42070/3DT 20
PFE-42070/3DU
PFE-42070/3DW 20
PFE-42070/7DV
PFE-51090/1DT 23
PFE-51090/1DU
PFE-51110/1DT 23
PFE-51110/1DU 23
PFE-51110/3DT 23
PFE-51129/1DT
PFE-51150/1DT
PFE-51150/3DV
PFE-52090/3DT 31
PFE-52110/3DT 31
PFED-43029/016/1DWO 20
PFED-43029/016/1SWO
PFED-43029/028/1DVO 20
PFED-43037/016/1DTA
PFED-43037/016/3SUO 20
PFED-43037/022/1DVO 20
PFED-43045/028/1DTO 20
PFED-43045/044/1DTO
PFED-43045/044/1DVO 20
PFED-43056/016/1DTO
PFED-43070/016/1DUO
PFED-43070/044/1DUO 20
PFED-43070/044/1DVO
PFED-54090/070/1DUO 21
PFED-54090/070/1DVO 21
PFED-54090/070/3DUF 21
PFED-54110/029/1DTO 21
PFED-54110/029/1DUO
PFED-54110/056/1DUO 21
PFED-54110/056/3DWB 21
PFED-54129/029/1DWG 21
PFED-54150/070/3DVO
PFED-54150/085/1SVO 21
PFED-54150/085/3DWO 21
PFEX2-31036/31022/1DT
PFEX2-42045/31022/3DT 21
PFEX2-51150/51129/3DV 23
PFEX2-51150/51150/3DV 23
PFEX2-51150/51150/3DW 23
PFEXC-51150/3DV
PFEXD-42085/43056/016/3DTA
PFR-202
PFR-203
PFR-308 40
PFR-315 40
PVL-210
PVL-210/150
PVL-210/50
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