| 加工定製 | 否 | 類型 | 比例閥 | 材質 | 鑄鋼 |
| 型號 | 0811404061 4WRPH10C4B100L-2X/G24Z4/M | 品牌 | 博世BOSCH力士樂 | 適用范圍 | 自動化流體控製 |
| 產品別名 | 比例伺服閥 | 適用介質 | 油品 | 適用溫度 | 20（℃） |
| 公稱壓力 | 280（MPa） | 公稱通徑 | 16（mm） | 安裝形式 | 螺紋 |
| 工作溫度 | 常溫 | 類型（通道位置） | 直角式 | 連接形式 | 螺紋 |
| 零部件及配件 | 閥體 | 流動方向 | 換向 | 驅動方式 | 伺服 |
| 形態 | 球式 | 壓力環境 | 常壓 | 主體材料 | 鑄鐵 |
| 規格 | 0811404035,4WRPH6C3B24L-2X/G24Z4/M,0811404038,4WRPH6C4 B24L-2X/G24Z4/M,0811404039,4WRPH6C4B40L-2X/G24Z4,0811404060,4WRPH10C4B50L-2X/G24Z,0811404062,4WRPH 10 C3 B50P-2X/G24Z,0811404063,4WRPH 10 C3 B100P-2X/G24 |
德國BOSCH 力士樂REXROTH比例閥0811404061 4WRPH10C4B100L-2X/G24Z4/M 該產品為上海韋米機電設備有限公司【特價現貨產品】【原裝進口品質】【品牌售後服務】全國銷售熱線：021-61116912,15900772031 聯系人：雷成 在線QQ：2532163287，詳情登陸：http://www.wei-mi.com
力士樂比例閥 力士樂REXROTH比例換向閥0811404038 4WRPH6C4 B24L-2X/G24Z4/M 由上海韋米機電設備有限公司專業提供，聯系電話：021-61116912 傳真：021-51334670 聯系人：雷成，在線QQ報價：2532163287 我公司主營進口液壓泵閥、工控備件，上海優勢供應商，具有上海一般納稅人資質，所有商品開具17%增值稅發票，原裝正品，品質保證，報價迅速，特價銷售，貨期短（現貨部分可當天發貨），熱誠歡迎來電咨詢價格貨期
力士樂REXROTH比例閥0811404061 4WRPH10C4B100L-2X/G24Z4/M
閥對流量的控製可以分為兩種：
一種是開關控製：要麼全開、要麼全關，流量要麼最大、要麼最小，沒有中間狀態，如普通的電磁直通閥、電磁換向閥、電液換向閥。
另一種是連續控製：閥口可以根據需要打開任意一個開度，由此控製通過流量的大小，這類閥有手動控製的，如節流閥，也有電控的，如比例閥、伺服閥。
所以使用比例閥或伺服閥的目的就是：以電控方式實現對流量的節流控製（當然經過結構上的改動也可實現壓力控製等），既然是節流控製，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，因為它需要一定的流量來維持前置級控製油路的工作。
力士樂比例閥 REXROTH/力士樂電磁閥，電磁換向閥，柱塞泵，軸向柱塞泵，變量泵，比例閥，節流閥，流量閥，溢流閥，單向閥，電液方向閥，比例伺服閥，液壓泵、葉片泵、齒輪泵，博世BOSCH氣動產品
博世力士樂rexroth比例閥 力士樂換向閥
力士樂rexroth博世bosch 比例閥 力士樂比例方向閥 博世力士樂換向閥
德國博世力士樂rexroth換向閥 力士樂液壓閥 力士樂比例閥
閥對流量的控製可以分為兩種：
一種是開關控製：要麼全開、要麼全關，流量要麼最大、要麼最小，沒有中間狀態，如普通的電磁直通閥、電磁換向閥、電液換向閥。
另一種是連續控製：閥口可以根據需要打開任意一個開度，由此控製通過流量的大小，這類閥有手動控製的，如節流閥，也有電控的，如比例閥、伺服閥。
所以使用比例閥或伺服閥的目的就是：以電控方式實現對流量的節流控製（當然經過結構上的改動也可實現壓力控製等），既然是節流控製，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，因為它需要一定的流量來維持前置級控製油路的工作。
滑閥結構
2區別
3延伸資料
1滑閥結構
力士樂REXROTH比例閥0811404061 4WRPH10C4B100L-2X/G24Z4/M 伺服閥的主閥一般來說和換向閥一樣是滑閥結構，隻不過閥芯的換向不是靠電磁鐵來推動，而是靠前置級閥輸出的液壓力來推動，這一點和電液換向閥比較相似，隻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態特性比較好的噴嘴擋板閥或射流管閥。
也就是說，伺服閥的主閥是靠前置級閥的輸出壓力來控製的，而前置級閥的壓力則來自於伺服閥的入口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。
而我們知道，當負載為零的時候，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），如果閥口壓力損失很小，t口壓力又為零，那麼p口的壓力就不足以供給前置級閥來推動主閥芯，整個伺服閥就失效瞭。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，好處隻有一個：動態性能是所有液壓閥中最高的。就憑著這一個優點，在很多對動態特性要求高的場合不得不使用伺服閥，如飛機火箭的舵機控製、汽輪機調速等等。動態要求低一點的，基本上都是比例閥的天下瞭。
一般說來，好像伺服系統都是閉環控製，比例多用於開環控製；其次比例閥類型要多，有比例壓力、流量控製閥等，控製比伺服要靈活一些。從他們內部結構看，伺服閥多是零遮蓋，比例閥則有一定的死區，控製精度要低，響應要慢。但從發展趨勢看，特別在比例方向流量控製閥和伺服閥方麵，兩者性能差別逐漸在縮小，另外比例閥的成本比伺服閥要低許多，抗污染能力也強！
2區別
德國BOSCH REXROTH比例閥0811404039 4WRPH6C4B40L-2X/G24Z4/M
伺服閥與比例閥的區別
伺服閥與比例閥之間的差別並沒有嚴格的規定，因為比例閥的性能越來越好，逐漸向伺服閥靠近，所以近些年出現瞭比例伺服閥。
比例閥和伺服閥的區別主要體現在以下幾點：
1.驅動裝置不同。比例閥的驅動裝置是比例電磁鐵；伺服閥的驅動裝置是力馬達或力矩馬達；
2.性能參數不同。滯環、中位死區、頻寬、過濾精度等特性不同，因此應用場合不同，伺服閥和伺服比例閥主要應用在閉環控製系統，其它結構的比例閥主要應用在開環控系統及閉環速度控製系統；
2.1 伺服閥中位沒有死區，比例閥有中位死區；
2.2 伺服閥的頻響（響應頻率）更高，可以高達200Hz左右，比例閥一般最高幾十Hz；
2.3 伺服閥對液壓油液的要求更高，需要精過濾才行，否則容易堵塞，比例閥要求低一些；
3.閥芯結構及加工精度不同。比例閥采用閥芯+閥體結構，閥體兼作閥套。伺服閥和伺服比例閥采用閥芯+閥套的結構。
4.中位機能種類不同。比例換向閥具有與普通換向閥相似的中位機能，而伺服閥中位機能隻有O型（Rexroth產品的E型）。
5.閥的額定壓降不同。
而比例伺服閥性能介於伺服閥和比例閥之間。
比例換向閥屬於比例閥的一種，用來控製流量和流向。
3延伸資料
上海韋米機電設備有限公司 特價現貨型號：
0811402016 DBETX-1X/315G24-8NZ4M
0811402017 DBETX-10/180G24-8NZ4M
0811402019 DBETX-1X/250G24-8NZ4M
0811403017 4WRBA10EA75-20/G24K4/M-828
0811402616 FESXE 32CA-1X/320LK0B1M
0811403001 4WRP10EA63S-1X/G24Z4/M
0811402515 FESX25CA-1X/210LZ4M
0811402614
0811402622 FESXE 40CA-1X/500LK0B1M
0811402642 FESXE50CA-1X/980LK0B1M
0811402517 FESXE25CA-1X/210LK0B1M
0811402001 DBETBX-1X/250G24-37Z4M-38
4WRKE10E-100L3X/6EG24EK31/A1D3M
4WRKE16E-125L3X/6EG24EK31/A1D3M
4WRKE16E-200L3X/6EG24EK31/A1D3M
4WRKE16W6-200P-3X/6EG24EK31/A1D3M
4WRKE25E350L3X/6EG24EK31/A1D3M
4WRKE32E600L-3X/6EG24K31/A1D3M
4WRKE32W6-600L-3X/6EG24K31/A1D3M
4WREE10E75-2X/G24K31/A1V
4WREE6E32-2X/G24K31/A1V
4WREE6W32-2X/G24K31/A1V
4WRAE10E60-2X/G24K31/A1V R900954083
4WRAE6E1-30-2X/G24K31/F1V
4WRBA10W64-2X/G24N9Z4/M 0811404833
4WREE6E32-2X/G24K31/F1V
4WRKE16W6-200L-3X/6EG24ETK31/A1D3M
4WRKE25E350L-3X/6EG24K31/F1D3M
4WRL10V85M-3X/G24Z4/M 0811404094
4WRL16V200M-3X/G24TZ4/M-765 0811404221
4WRL25V370M-3X/G24Z4/M 0811404405
4WRZ10W8-85-7X/6EG24N9ETK4/D3M
4WRZ25E1-220-7X/6EG24N9K4/M
4WRZ32W6-520-7X/6EG24N9ETK4/D3M
0811404035 4WRPH6C3B24L-2X/G24Z4/M
0811404038 4WRPH6C4 B24L-2X/G24Z4/M
0811404039 4WRPH 6 C4 B40L-2X/G24Z4/M
0811404060 4WRPH 10 C4 B50L-2X/G24Z4/M
0811404061 4WRPH 10 C4 B100L-2X/G24Z4/M
0811404062 4WRPH 10 C3 B50P-2X/G24Z4/M
0811404063 4WRPH 10 C3 B100P-2X/G24Z4/M
0811405083 VT-KRRA 2-527-20/V0/2CH
0811405061 VT-VRRA 1-537-20/V0
0811405060 VT-VRRA 1-527-20/V0
0811405097
0811A04639 REGELVENTIL0811404639-PU1
0811404979 4WRBKE35W1100SJ-1X/6ZG24K31/A1D3M
0811404975 4WRBKE35E1100SJ-1X/6ZG24K31/A1D3M
0811404972 WEGEVENTIL
0811404970 4WRBKE27W430SJ-1X/6ZG24K31/A1D3M-235
0811404969 4WRBKE27R5-430SJ-1X/6ZG24EK31/A1D3M-903
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0811404273 4WRLE16W1-200M-3X/G24EK0/A1WX02M-779
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0811404271 4WRLE16V120M-3X/G24K0/B5M
0811404270 4WRLE16Q4-200M-3X/G24ETK0/A1M
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0811404266 4WRLE16V1-150P-3X/G24K0/A1M
0811404265 4WRLE16V1-90P-3X/G24K0/A1M
0811404264 4WRLE16V150P-3X/G24K0/A1M
0811404263 4WRLE16V90P-3X/G24K0/A1M
0811404261 4WRLE16X200M-3X/G24K0/A1M-812
0811404260 4WRLE16X00M-3X/G24K0/A1M-778
0811404259 4WRLE16X200M-3X/G24EK0/A1M-812
0811404258 4WRLE16X200M-3X/G24ETK0/A1M-812
0811404257 4WRLE16Q5-85M-3X/G24K0/A1M-775
0811404256 4WRLE16X200M-3X/G24K0/A1M-0811
0811404254 4WRLE16Q5-200M-3X/G24TK0/B5M-774
0811404252 4WRLE16Q5-200M-3X/G24K0/A1M
0811404251 4WRLE16V200M-3X/G24K0/A1M
0811404250 4WRLE16V120M-3X/G24K0/A1M
0811404247 4WRL16WZ180S-3X/G24ETZ4/M
0811404241 4WRL16V100P-3X/G24Z4/M
0811404239 4WRL16V1-120M-3X/G24Z4/M
0811404237 4WRL16V1-200M-3X/G24K0/M-750
0811404236 4WRL16V1-120M-3X/G24K0/M-750
0811404234 4WRL16EZ180S-3X/G24Z4/M-763
0811404233 4WRL16EZ180S-3X/G24ETZ4/M-750
0811404232 4WRL16EZ180S-3X/G24Z4/M-750
0811404229 4WRL16V120M-3X/G24K0/M-750
0811404228 4WRL16E1-180S-3X/G24Z4/M-755
0811404223 4WRL16WZ180S-3X/G24EZ4/WX02M-753
0811404221 4WRL16V200M-3X/G24TZ4/M-765
0811404220 4WRL16Q5-200M-3X/G24TZ4/M-774
0811404219 4WRL16W3-180S-3X/G24Z4/WX02M-924
0811404218 4WRL16W180S-3X/G24ETZ4/WX02M-748
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0811404215 4WRL16E110S-3X/G24Z4/M
0811404214 4WRL16E4-180S-3X/G24Z4/M
0811404213 4WRL16W1Z180S-3X/G24Z4/M
0811404212 4WRL16E1Z180S-3X/G24Z4/M
0811404211 4WRL16W4Z180S-3X/G24Z4/M
0811404210 4WRL16EZ180S-3X/G24Z4/M
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0811404206 4WRL16V120M-3X/G24Z4/M
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0811404154 4WRBAE6E18J-2X/G24N9K31/F1M
0811404153 4WRBAE6W18J-2X/G24N9K31/A1M
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閥對流量的控製可以分為兩種：
一種是開關控製：要麼全開、要麼全關，流量要麼最大、要麼最小，沒有中間狀態，如普通的電磁直通閥、電磁換向閥、電液換向閥。
另一種是連續控製：閥口可以根據需要打開任意一個開度，由此控製通過流量的大小，這類閥有手動控製的，如節流閥，也有電控的，如比例閥、伺服閥。
所以使用比例閥或伺服閥的目的就是：以電控方式實現對流量的節流控製（當然經過結構上的改動也可實現壓力控製等），既然是節流控製，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，因為它需要一定的流量來維持前置級控製油路的工作。
力士樂比例閥4WRZ10W8-85-7X/6EG24N9ETK4/D3M
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