?R900221107?2FRM?6?SB36-3X/1,5QMV

武穴黎翔機(jī)電設(shè)備有限公司，詢價(jià)聯(lián)系人：何女士

詢價(jià)電話：0713-6542758，18934630908????

詢價(jià)傳真：0713-6542758

詢價(jià)QQ:?736567721,704552157

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0811402141?DBETBEX-1X/315G24K31F1M

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先導(dǎo)比例方向閥??4WRKE10W6-100L-31/6EG24EK31/A1D3M?

先導(dǎo)比例方向閥??4WRKE10E-100L-31/6EG24EK31/A1D3M

先導(dǎo)比例方向閥??4WRKE16W6-200L-3X/6EG24EK31/F1D3M?

先導(dǎo)比例方向閥??4WRKE16W6-125L-3X/6EG24ETK31/A1D3M

先導(dǎo)比例方向閥??4WRKE16W8-200L-31/6EG24ETK31/A1D3M?

先導(dǎo)比例方向閥??4WRKE25E-350L-33/6EG24EK31/A1D3M??

先導(dǎo)比例方向閥??4WRKE25W6-350P-3X/6EG24ETK31/A1D3M?

由于電磁鐵推力的限制，在大于63L/min的液壓系統(tǒng)中，一般不再選用直推式的電磁換向閥，而選用通過流量較大的電液換向閥。電液換向閥的原理是：控制油通過電磁先導(dǎo)閥到達(dá)電液閥主閥芯的兩端（即電液換向閥主閥體兩端蓋側(cè)），

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通過電磁先導(dǎo)閥的換向，來實(shí)現(xiàn)主閥芯的左右移動(dòng)，從而開通或切斷通往執(zhí)行元件的油路，使執(zhí)行元件運(yùn)行或停止。但在打開或切斷油路的瞬間，

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系統(tǒng)中會產(chǎn)生相當(dāng)大的沖擊，這種沖擊會極大影響液壓系統(tǒng)中液壓元件和密封件的使用壽命。為了減小及至消除由此引起的液壓沖擊

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，最簡單的辦法是在該電液閥下面疊加一個(gè)P口節(jié)流閥或進(jìn)油節(jié)流式雙單向節(jié)流閥、出油節(jié)流式雙單向節(jié)流閥，以延長閥芯的換向及復(fù)位時(shí)間

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，從而到降低液壓沖擊的目的。下面就以彈簧復(fù)位型、三位四通中封式電液壓換向閥為例、對該三種疊加節(jié)流方式作簡要說明。

2FRM型調(diào)速閥是兩通的流量控制閥，此閥是由減壓閥和節(jié)流閥串聯(lián)構(gòu)成的。油流進(jìn)入調(diào)速閥后，先經(jīng)過減壓閥減壓，再由節(jié)流閥節(jié)流。由于減壓閥對節(jié)流進(jìn)行壓力補(bǔ)償。所以調(diào)速閥的流量不受負(fù)載變化的影響，保持穩(wěn)定。同時(shí)節(jié)流窗口設(shè)計(jì)成薄刃狀，流量受溫度變化很小。調(diào)速閥和單向閥并聯(lián)時(shí)，油流能反向回流

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力士樂RexrothR900241525?2FRM6A36-3X/0,6QMV

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力士樂RexrothR900205516?2FRM6B36-3X/3QMV

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力士樂RexrothR900221107?2FRM6SB36-3X/1,5QMV?

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