力士樂直動(dòng)式溢流閥DBDH10P1A/50
方向控制按用途分為單向閥和換向閥。單向閥：只允許流體在管道中單向接通，反向即切斷。換向閥：改變不同管路間的通、斷關(guān)系。根據(jù)閥芯在閥體中的工作位置數(shù)分兩位、三位等；根據(jù)所控制的通道數(shù)分兩通、三通、四通、五通等；根據(jù)閥芯驅(qū)動(dòng)方式分手動(dòng)，機(jī)動(dòng)，電動(dòng)，液動(dòng)等。圖2為三位四通換向閥的工作原理。P 為供油口，O 為回油口，A 、B 是通向執(zhí)行元件的輸出口。當(dāng)閥芯處於中位時(shí)，全部油口切斷，執(zhí)行元件不動(dòng)；當(dāng)閥芯移到右位時(shí)，P 與A 通，B 與O 通；當(dāng)閥芯移到左位時(shí)，P 與B 通，A 與O 通。這樣，執(zhí)行元件就能作正、反向運(yùn)動(dòng)。
力士樂直動(dòng)式溢流閥DBDH10P1A/50
Rexroth溢流閥 DBDS30K1X/135B
Rexroth溢流閥 DBDS30K1X/140B
Rexroth溢流閥 DBDS30K1X/145B
Rexroth溢流閥 DBDS30K1X/150B
Rexroth溢流閥 DBDS30K1X/155B
Rexroth溢流閥 DBDS30K1X/160B
Rexroth溢流閥 DBDS30K1X/165B
Rexroth溢流閥 DBDS30K1X/170B
Rexroth溢流閥 DBDS30K1X/170VB
Rexroth溢流閥 DBDS30K1X/175B
Rexroth溢流閥 DBDS30K1X/180B
Rexroth溢流閥 DBDS30K1X/180VB
Rexroth溢流閥 DBDS30K1X/190B
Rexroth溢流閥 DBDS30K1X/190E
Rexroth溢流閥 DBDS30K1X/195B
Rexroth溢流閥 DBDS30K1X/200
Rexroth溢流閥 DBDS30K1X/200-130
Rexroth溢流閥 DBDS30K1X/200B
Rexroth溢流閥 DBDS30K1X/200J
Rexroth溢流閥 DBDS30K1X/200JSO73
Rexroth溢流閥 DBDS30K1X/200JV
Rexroth溢流閥 DBDS30K1X/200JVSO73
Rexroth溢流閥 DBDS30K1X/200MT
Rexroth溢流閥 DBDS30K1X/200P115
Rexroth溢流閥 DBDS30K1X/200P180
Rexroth溢流閥 DBDS30K1X/200SO60
Rexroth溢流閥 DBDS30K1X/200V
Rexroth溢流閥 DBDS30K1X/200VB
Rexroth溢流閥 DBDS30K1X/210B
Rexroth溢流閥 DBDS30K1X/210E
Rexroth溢流閥 DBDS30K1X/210VB
Rexroth溢流閥 DBDS30K1X/215B
Rexroth溢流閥 DBDS30K1X/220B
Rexroth溢流閥 DBDS30K1X/220E
Rexroth溢流閥 DBDS30K1X/220VB
Rexroth溢流閥 DBDS30K1X/225B
Rexroth溢流閥 DBDS30K1X/230B
Rexroth溢流閥 DBDS30K1X/230VB
Rexroth溢流閥 DBDS30K1X/240B
Rexroth溢流閥 DBDS30K1X/25
力士樂直動(dòng)式溢流閥DBDH10P1A/50
壓力控制按用途分為溢流閥﹑減壓閥和順序閥。⑴溢流閥：能控制液壓系統(tǒng)在達(dá)到調(diào)定壓力時(shí)保持恒定狀態(tài)。用於過載保護(hù)的溢流閥稱為安全閥。當(dāng)系統(tǒng)發(fā)生故障，壓力升高到可能造成破壞的限定值時(shí)，閥口會(huì)打開而溢流，以保證系統(tǒng)的安全。⑵減壓閥：能控制分支回路得到比主回路油壓低的穩(wěn)定壓力。減壓閥按它所控制的壓力功能不同，又可分為定值減壓閥（輸出壓力為恒定值）﹑定差減壓閥（輸入與輸出壓力差為定值）和定比減壓閥（輸入與輸出壓力間保持一定的比例）。⑶順序閥：能使一個(gè)執(zhí)行元件（如液壓缸﹑液壓馬達(dá)等）動(dòng)作以后，再按順序使其他執(zhí)行元件動(dòng)作。油泵產(chǎn)生的壓力先推動(dòng)液壓缸1運(yùn)動(dòng)，同時(shí)通過順序閥的進(jìn)油口作用在面積A 上，當(dāng)液壓缸1運(yùn)動(dòng)完全成后，壓力升高，作用在面積A 的向上推力大於彈簧的調(diào)定值后，閥芯上升使進(jìn)油口與出油口相通，使液壓缸2運(yùn)動(dòng)。
力士樂直動(dòng)式溢流閥DBDH10P1A/50
R900508470 ZDR 10 VB6-3X/100YV
R900508489 DB 10 G2-5X/200Y
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力士樂直動(dòng)式溢流閥DBDH10P1A/50
