DR10-5-5X/100YM先導(dǎo)式減壓閥 德國博世力士樂REXROTH減壓閥 壓力控制閥

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DR10-5-5X/100YM先導(dǎo)式減壓閥

減壓閥

減壓閥是利用液流流過縫隙產(chǎn)生壓力損失，使其出口壓力低于進口壓力的壓力控制閥。

按調(diào)節(jié)要求不同，有定值減壓閥，定差減壓閥，定比減壓閥。

定值減壓閥的結(jié)構(gòu)原理

減壓閥起減壓作用且保證出口壓力為定值的條件是:當出口壓力大于減壓閥的調(diào)定壓力，使其先導(dǎo)閥開啟。

直動式減壓閥

減壓閥的功用與特點：

減壓閥用在液壓系統(tǒng)中獲得壓力低于系統(tǒng)壓力的二次油路上

與溢流閥比較:

減壓閥是出口壓力控制，保證出口壓力為定值;溢流閥是進口壓力控制，保證進口壓力為定值。

減壓閥閥口常開;

溢流閥閥口常閉。

減壓閥有單獨的泄油口;溢流閥彈簧腔的泄漏油經(jīng)閥體

減壓閥可將閥前管路較高的液體壓力減少至閥后管路所需的水平。這里的傳輸介質(zhì)主要是水。減壓閥廣泛用于高層建筑、城市給水管網(wǎng)水壓過高的區(qū)域、礦井及其他場合，以保證給水系統(tǒng)中各用水點獲得適當?shù)姆��?wù)水壓和流量。鑒于水的漏失率和浪費程度幾乎同給水系統(tǒng)的水壓大小成正比，因此減壓閥具有改善系統(tǒng)運行工況和潛在節(jié)水作用，據(jù)統(tǒng)計其節(jié)水效果約為30%。

作用原理：減壓閥的是靠閥內(nèi)流道對水流的局部阻力降低水壓，水壓降的范圍由連接閥瓣的薄膜或活塞兩側(cè)的進出口水壓差自動調(diào)節(jié)。定比減壓原理是利用閥體中浮動活塞的水壓比控制，進出口端減壓比與進出口側(cè)活塞面積比成反比。這種減壓閥工作平穩(wěn)無振動；閥體內(nèi)無彈簧，故無彈簧銹蝕、金屬疲勞失效之慮；密封性能良好不滲漏，因而既減動壓（水流動時）又減靜壓（流量為0時）；特別是在減壓的同時不影響水流量。

DR10-5-5X/100YM先導(dǎo)式減壓閥

DR 型壓力閥是由二次回路控制的先導(dǎo)式減壓閥。

減壓閥基本上由帶主閥芯插件 (3) 的主閥 (1) 和帶調(diào)節(jié)型的先導(dǎo)控制閥 (2) 組成。

在靜止位置，閥門打開。液壓油從通道 B 通過主閥芯插件 (3) 無限制地流入通道 A。施加到通道 A 的壓力作用于下主閥芯側(cè)。同時，壓力通過噴嘴 (4) 施加到主閥芯 (3) 的彈簧加載側(cè)，并通過通道 (5) 施加到先導(dǎo)控制閥 (2) 中的球 (6)。它還通過噴嘴 (7)、控制管路 (8)、止回閥 (9) 和噴嘴 (10) 作用于球 (6)。根據(jù)彈簧 (11) 的設(shè)置，壓力會在球 (6) 前面、通道 (5) 和彈簧腔 (12) 中積聚，從而將控制閥芯 (13) 保持在打開位置。通道 B 中的液壓流體可以通過主閥芯插件 (3) 不受限制地流向通道 A，直到通道 A 中的壓力升高，超過彈簧 (11) 上設(shè)置的值并打開球 (6)�？刂崎y芯 (13) 向關(guān)閉方向移動。

當通道 A 中的壓力與彈簧 (11) 上設(shè)定的壓力之間處于平衡狀態(tài)時，就會實現(xiàn)所需的減壓。

先導(dǎo)油從彈簧腔 (14) 返回總是通過控制管路 (15) 從外部進入油箱。

對于從通道 A 到通道 B 的自由回流，可選擇安裝止回閥 (16)。

壓力表連接 (17) 允許控制通道 A 中的減壓。

類型 DR..-4-5X/...Y...

DR10-5-5X/100YM先導(dǎo)式減壓閥型號

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R900503273 DR30G4-5X/100YM

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R901020869 DR30G4-5X/315YMV

R900507457 DR30G4-5X/50YM

R900910867 DR30G4-5X/50YM/12

R900598270 DR30G5-5X/100YM

R900502407 DR30G5-5X/100YM/12

R900566809 DR30G5-5X/100YMV

R900708119 DR30G5-5X/100YMV/12

R900595130 DR30G5-5X/200YM

R900552906 DR30G5-5X/200YM/12

R900513180 DR30G5-5X/200YMV

R900563833 DR30G5-5X/200YMV/12

R901026879 DR30G5-5X/315-200YM

R900777095 DR30G5-5X/315-205YM

R900598827 DR30G5-5X/315YM

R900979325 DR30G5-5X/315YM/12

R900597299 DR30G5-5X/315YMJ

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R900563901 DR30G5-5X/315YMV

R900535434 DR30G5-5X/315YMV/12

R901240099 DR30G5-5X/350YM

R900960317 DR30G5-5X/350YM/12

R900503382 DR30G5-5X/50YM

R900927917 DR30G5-5X/50YM/12

R900518575 DR30G5-5X/50YMV

R900950678 DR30G5-5X/50YMV/12

R900529674 DR30G6-5X/100YM

R900533036 DR30G6-5X/200YM

R900596495 DR30G6-5X/315YM

R900500776 DR30G6-5X/50YM

R900901094 DR30G7-5X/200YM

R900596963 DR30-.-5X/...Y

R900509178 DR30-.-5X/...YM

R900501430 DR30-0-5X/...YSO16

R900599113 DR30-4-5X/100Y

R900599112 DR30-4-5X/100YM

R900562612 DR30-4-5X/100YMV/12

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R900513985 DR30-4-5X/200YM

R900533803 DR30-4-5X/200YM/12

R900928452 DR30-4-5X/200YMV

R901225455 DR30-4-5X/200YV

R900596961 DR30-4-5X/315Y

R900900568 DR30-4-5X/315Y/12

R900500853 DR30-4-5X/315YM

R900721605 DR30-4-5X/315YM/12

R900552601 DR30-4-5X/315YMK/12

R900951565 DR30-4-5X/315YMV

R900562490 DR30-4-5X/315YV

R900770293 DR30-4-5X/350YM

R900902977 DR30-4-5X/50Y

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R900505866 DR30-4-5X/50YMV

R900517977 DR30-4-5X/50YV

R901363484 DR30-4-5X=100Y

R901363483 DR30-4-5X=100YM

R900920445 DR30-5-5X/100-080YMV

R900596339 DR30-5-5X/100Y

R900922541 DR30-5-5X/100Y/12

R900597260 DR30-5-5X/100YM

R900547952 DR30-5-5X/100YM/12

R900597086 DR30-5-5X/100YMV

R900596687 DR30-5-5X/100YV

R900563023 DR30-5-5X/100YV/12

R901167554 DR30-5-5X/200-100YM

R901201341 DR30-5-5X/200-100YMV

R901035294 DR30-5-5X/200-150Y

R901429004 DR30-5-5X/200P160Y

R900596500 DR30-5-5X/200Y

R900516120 DR30-5-5X/200YSO96

R900578916 DR30-5-5X/200Y/12

R900597158 DR30-5-5X/200YM

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R900937293 DR30-5-5X/200YMV/12

R900513720 DR30-5-5X/200YV

R900940657 DR30-5-5X/200YV/12

R901264572 DR30-5-5X/315-250YM

R901077257 DR30-5-5X/315P200YM

R900596928 DR30-5-5X/315Y

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R900500837 DR30-5-5X/315YJ

R900596814 DR30-5-5X/315YM

R900921125 DR30-5-5X/315YM/12

R900728829 DR30-5-5X/315YMJ

R900505753 DR30-5-5X/315YMK

R900598578 DR30-5-5X/315YMV

R900961808 DR30-5-5X/315YMV/12

R900597312 DR30-5-5X/315YV

R900533722 DR30-5-5X/315YV/12

R900506979 DR30-5-5X/350YM

R901115967 DR30-5-5X/350YM/12

R900712932 DR30-5-5X/350YMV

R901284127 DR30-5-5X/50P30Y

R900503381 DR30-5-5X/50Y

R978865405 DR30-5-5X/50Y/12

R900503303 DR30-5-5X/50YM

R900514450 DR30-5-5X/50YMV

R900568646 DR30-5-5X/50YV

R900596662 DR30-6-5X/100Y

R901035841 DR30-6-5X/100Y/12

R900596997 DR30-6-5X/100YM

R900510630 DR30-6-5X/100YV

R900500930 DR30-6-5X/200Y

R900529867 DR30-6-5X/200YM

R901200715 DR30-6-5X/200YV

R900596660 DR30-6-5X/315Y

R900956765 DR30-6-5X/315Y/12

R900597613 DR30-6-5X/315YM

R900549072 DR30-6-5X/315YMV

R900977041 DR30-6-5X/315YV

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R900571409 DR30-7-5X/100Y

R901060661 DR30-7-5X/100YMV

R900548523 DR30-7-5X/200Y

R900577986 DR30-7-5X/200YM

R900968975 DR30-7-5X/315YM

R900729775 DR30-7-5X/350YM

順序閥

順序閥是一種利用壓力控制閥口通斷的壓力閥。

按控制油來源不同分內(nèi)控和外控，按彈簧腔泄漏油引出方式不同分內(nèi)泄和外泄。

順序閥的四種控制方式

通過改變上蓋或底蓋的裝配位置可得到內(nèi)控外泄、內(nèi)控內(nèi)泄、外控外泄、外控內(nèi)泄四種類型。

內(nèi)控外泄順序閥

內(nèi)控外泄順序閥與溢流閥非常相象:閥口常閉，進口壓力控制，但是該

閥出口油液要去工作，所以有單獨的泄油口。

內(nèi)控外泄順序閥用于多個執(zhí)行元件順序動作。其進口壓力先要達到閥的調(diào)定壓力，而出口壓力取決于負載。當負載壓力高于閥的調(diào)定壓力時，進口壓力等于出口壓力，閥口全開;當負載壓力低于調(diào)定壓力時，進口壓力等于調(diào)定壓力，閥的開口一定。