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所以使用比例閥或伺服閥的目的就是：以電控方式實(shí)現(xiàn)對流量的節(jié)流控制（當(dāng)然經(jīng)過結(jié)構(gòu)上的改動(dòng)也可實(shí)現(xiàn)壓力控制等），既然是節(jié)流控制，就必然有能量損失，伺服閥和其它閥不同的是，它的能量損失更大一些，因?yàn)樗�需要一定的流量來維持前置級控制油路的工作伺服閥的主閥一般來說和換向閥一樣是滑閥結(jié)構(gòu)，只不過閥芯的換向不是靠電磁鐵來推動(dòng)，而是靠前置級閥輸出的液壓力來推動(dòng)，這一點(diǎn)和電液換向閥比較相似，只不過電液換向閥的前置級閥是電磁換向閥，而伺服閥的前置級閥是動(dòng)態(tài)特性比較好的噴嘴擋板閥或射流管閥。

比例方向閥VT-DFPE-A-2X/G24K0/0A0V/V  

比例方向閥VT-DFPE-A-2X/G24K0/0A0V/V

比例方向閥VT-DFPE-A-2X/G24K0/0A0V/V  

比例方向閥VT-DFPE-A-2X/G24K0/0A0V/V

比例方向閥VT-DFPE-A-2X/G24K0/0A0V/V  

比例方向閥VT-DFPE-A-2X/G24K0/0A0V/V

德國Rexroth力士樂工業(yè)液壓產(chǎn)品-系統(tǒng)-電動(dòng)液壓控制系統(tǒng)-備件
帶電氣位置反饋的直動(dòng)式三位三通比例方向閥作為控制系統(tǒng) SY(H)DFE 的先導(dǎo)閥。
VT-DFPE
ZD工作壓力 350 bar
德國Rexroth力士樂比例方向閥特點(diǎn)：
用于壓力和流量控制系統(tǒng) SY(H)DFE 的先導(dǎo)閥。用帶電子反饋的比例電磁鐵操縱控制電子元件；用于 SY(H)DFEE 的 VT-DFPE → 集成式，模擬.
德國Rexroth力士樂比例方向閥類型代碼：
VT-DFPE:帶集成模擬電子元件的先導(dǎo)閥滑閥設(shè)計(jì)
A:標(biāo)準(zhǔn)（不適用于 HFC 油液）
B:2-槽式滑閥（僅用于替換要求）
C:4-槽式滑閥（例如，用于 HFC 油液）
2X:組件系列
G24:直流電壓 24 V
K0:連接器（不帶連接插頭）1)連接器 (VT-DFP) 和/或集成電子元件的安裝方向
0:方向垂直于泵軸
1:底板方向與泵的逆時(shí)針旋轉(zhuǎn)方向之間偏轉(zhuǎn) 90°
2:底板方向與泵的順時(shí)針旋轉(zhuǎn)方向之間偏轉(zhuǎn) 90°
附加功能：閉環(huán)控制
A:可通斷壓力控制器（信號(hào)高時(shí)）
B:OBE 閥上可調(diào)的功率限制
C:可通過模擬輸入調(diào)節(jié)的功率限制
D:可關(guān)閉的壓力控制器（信號(hào)高時(shí)）
電子組件，選件
0:帶漏油補(bǔ)償?shù)臉?biāo)準(zhǔn)電子元件
1:不帶漏油補(bǔ)償?shù)臉?biāo)準(zhǔn)電子元件
壓力反饋輸入;（有關(guān)連接器的說明，請參閱電氣連接）插頭
C:電流輸入 4...20 mA  插頭x1
V:電壓輸入 0...10 V（標(biāo)準(zhǔn)） 插頭x1
E:電壓輸入 1...10 V  插頭x1
F:電壓輸入 0.5..5 V（標(biāo)準(zhǔn)）對于帶模擬接口的 SY(H)DFEn 控制系統(tǒng)，插頭 X2 不能用作壓力反饋輸入。因此在這種情況下，必須使用單獨(dú)的壓力傳感器并將其連接至插頭 X1。)  插頭x2
V:FKM 密封件適用于符合 DIN 51524 的礦物油（HL、HLP）和 HFC 油液 僅與 SYHDFE 和閥芯設(shè)計(jì) C 相關(guān)聯(lián))*:以明文給出的更詳細(xì)信息，例如 SO 型號(hào)
德國Rexroth力士樂比例方向閥技術(shù)數(shù)據(jù)：
機(jī)械和液壓
液壓油 合 DIN 51524 的礦物油（HL、HLP）；僅與 SYHDFE 控制系統(tǒng)和閥芯設(shè)計(jì) C 相關(guān)聯(lián)的 HFC 液壓油液壓油溫度范圍:-20 … +70°C
符合ISO 4406 規(guī)定的ZD允許液壓油污染度：等級 18/16/13（適用于顆粒大小 ≤ 4/6/14 μm）
工作電壓：24 VDC +40 % –5 %
電流消耗（在靜態(tài)控制操作中）
額定電流：0.6A
ZD電流：1.25A
泵的環(huán)境溫度范圍：0°C … +60°C
存儲(chǔ)溫度范圍（泵 + 電子元件）：0°C … +70°C
防護(hù)類型，符合 EN 60529： 帶先導(dǎo)閥的泵 IP65，已安裝并鎖定了插頭
尺寸：長217.5mm X 45mm X 136.5mm
質(zhì)量:不帶通軸傳動(dòng)的泵，包括先導(dǎo) 2.25kg
德國Rexroth力士樂比例方向閥訂貨號(hào)/型號(hào)：

R900608752 VT-DFPE-A-2X/G24K0/0A0F/V
R900608753 VT-DFPE-A-2X/G24K0/0A0V/V
R900608754 VT-DFPE-A-2X/G24K0/2A0F/V
R900608755 VT-DFPE-A-2X/G24K0/2A0V/V
R900619401 VT-DFPE-A-2X/G24K0/2B0F/V-016
R900701568 VT-DFPE-A-2X/G24K0/0A2V/V
R900702431 VT-DFPE-A-2X/G24K0/0B0V/V
R900702586 VT-DFPE-A-2X/G24K0/2A0F/V-017
R900703575 VT-DFPE-A-2X/G24K0/0A0E/V
R900709023 VT-DFPE-A-2X/G24K0/0A0C/V
R900712200 VT-DFPE-A-2X/G24K0/0A1V/V
R900720215 VT-DFPE-A-2X/G24K0/0B0V/V-015
R900720216 VT-DFPE-A-2X/G24K0/0A1V/V-014
R900721486 VT-DFPE-A-2X/G24K0/0A1C/V
R900724226 VT-DFPE-A-2X/G24K0/2A1V/V
R900724227 VT-DFPE-A-2X/G24K0/2B0V/V
R900724228 VT-DFPE-A-2X/G24K0/0B0C/V
R900724229 VT-DFPE-A-2X/G24K0/2A1E/V
R900724230 VT-DFPE-A-2X/G24K0/0A1E/V
R900724232 VT-DFPE-A-2X/G24K0/2A0C/V
R900729435 VT-DFPE-A-2X/G24K0/0A1V/V-017
R900730233 VT-DFPE-A-2X/G24K0/2A1C/V
R900742689 VT-DFPE-A-2X/G24K0/0A0F/V-017
R900744140 VT-DFPE-A-2X/G24K0/0B0V/V-016
R900750037 VT-DFPE-A-2X/G24K0/2A2V/V
R900763124 VT-DFPE-A-2X/G24K0/2B0C/V
R900763738 VT-DFPE-A-2X/G24K0/2A0E/V
R900763990 VT-DFPE-A-2X/G24K0/0B0F/V
R900772316 VT-DFPE-A-2X/G24K0/0B1V/V
R900772810 VT-DFPE-A-2X/G24K0/2A0V/V-002
R900772982 VT-DFPE-A-2X/G24K0/0B0F/V-016
R900775570 VT-DFPE-A-2X/G24K0/0A1F/V
R900781524 VT-DFPE-A-2X/G24K0/1A0V/V
R900785335 VT-DFPE-A-2X/G24K0/2B1V/V
R901029624 VT-DFPE-A-2X/G24K0/0A1E/V-014
R901031176 VT-DFPE-A-2X/G24K0/2D0V/V-019
R901033365 VT-DFPE-A-2X/G24K0/0B1C/V
R901035690 XM-VT-DFPE-A-2X/G24K0/2A0F/V
R901036937 VT-DFPE-A-2X/G24K0/0A0C/V-018
R901043435 VT-DFPE-A-2X/G24K0/0A1F/V-017
R901073290 VT-DFPE-A-2X/G24K0/1D0V/V-019
R901082788 VT-DFPE-A-2X/G24K0/0C1C/V
R901083448 VT-DFPE-A-2X/G24K0/0B1V/V-017
R901083449 VT-DFPE-A-2X/G24K0/0B0F/V-017
R901103981 VT-DFPE-A-2X/G24K0/0B1F/V
R901135219 VT-DFPE-A-2X/G24K0/2A1E/V-014
R901140518 VT-DFPE-A-2X/G24K0/0C0F/V

R901146489 VT-DFPE-A-2X/G24K0/0C0C/V
R901148919 VT-DFPE-A-2X/G24K0/2B1F/V-017
R901161755 VT-DFPE-A-2X/G24K0/2A0C/V-018
R901187370 VT-DFPE-A-2X/G24K0/0D0C/V
R901198656 VT-DFPE-A-2X/G24K0/2D0V/V-019=KM
R901198658 VT-DFPE-A-2X/G24K0/1D0V/V-019=KM
R901200629 VT-DFPE-A-2X/G24K0/2A0V/V=KM
R901205796 VT-DFPE-A-2X/G24K0/1A0V/V=KM
R901219644 VT-DFPE-A-2X/G24K0/0A0D/V
R901229920 VT-DFPE-A-2X/G24K0/2A0F/V-021
R901233250 VT-DFPE-A-2X/G24K0/0A0C/V-017
R901245460 VT-DFPE-A-2X/G24K0/2A1V/V=KM
R901274573 VT-DFPE-A-2X/G24K0/2A1F/V
R901341658 VT-DFPE-A-2X/G24K0/1D0V/V
R901342382 VT-DFPE-A-2X/G24K0/2A0V/V-021
R901389679 VT-DFPE-A-2X/G24K0/0C0F/V-017
R901414659 VT-DFPE-A-2X/G24K0/0A0F/V-022
R901455759 VT-DFPE-A-2X/G24K0/2C0F/V-017
R996803042 VT-DFPE-A-2X/G24K0/2A0V/V
R900720212 VT-DFPE-C-2X/G24K0/0A0C/V
R900781432 VT-DFPE-C-2X/G24K0/0A0E/V
R901224708 VT-DFPE-C-2X/G24K0/0A0E/V-017
R901124900 VT-DFPE-C-2X/G24K0/0A0F/V-017
R900720211 VT-DFPE-C-2X/G24K0/0A0V/V
R901110428 VT-DFPE-C-2X/G24K0/0A1F/V
R901199157 VT-DFPE-C-2X/G24K0/0B0C/V
R900724231 VT-DFPE-C-2X/G24K0/0B0V/V
R900737781 VT-DFPE-C-2X/G24K0/0B1C/V
R901384831 VT-DFPE-C-2X/G24K0/1A0E/V-017
R900720214 VT-DFPE-C-2X/G24K0/2A0C/V
R901250348 VT-DFPE-C-2X/G24K0/2A0E/V-017
R900705156 VT-DFPE-C-2X/G24K0/2A0V/V
R900720213 VT-DFPE-C-2X/G24K0/2A0V/V-007
R900718705 VT-DFPE-C-2X/G24K0/2A1C/V
R900724233 VT-DFPE-C-2X/G24K0/2A2V/V
R901368373 VT-DFPE-C-2X/G24K0/2B0V/V
R900720212 VT-DFPE-C-2X/G24K0/0A0C/V
R900781432 VT-DFPE-C-2X/G24K0/0A0E/V
R901224708 VT-DFPE-C-2X/G24K0/0A0E/V-017
R901124900 VT-DFPE-C-2X/G24K0/0A0F/V-017
R900720211 VT-DFPE-C-2X/G24K0/0A0V/V
R901110428 VT-DFPE-C-2X/G24K0/0A1F/V
R901199157 VT-DFPE-C-2X/G24K0/0B0C/V
R900724231 VT-DFPE-C-2X/G24K0/0B0V/V
R900737781 VT-DFPE-C-2X/G24K0/0B1C/V
R901384831 VT-DFPE-C-2X/G24K0/1A0E/V-017
R900720214 VT-DFPE-C-2X/G24K0/2A0C/V
R901250348 VT-DFPE-C-2X/G24K0/2A0E/V-017
R900705156 VT-DFPE-C-2X/G24K0/2A0V/V
R900720213 VT-DFPE-C-2X/G24K0/2A0V/V-007
R900718705 VT-DFPE-C-2X/G24K0/2A1C/V
R900724233 VT-DFPE-C-2X/G24K0/2A2V/V
R901368373 VT-DFPE-C-2X/G24K0/2B0V/V