?3DREE10P-7X/200YG24K31/A1V伺服液壓閥歡迎您的詢價!公司詢價聯(lián)系人:何女士。手機:18934630908/18972758911.
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力士樂比例閥R900925687?4WRAE10W1-30-22/G24N9K31/F1V 現(xiàn)貨特價2臺
DBETBEX-1X/315G24K31F1M ??現(xiàn)貨特價1臺????力士樂氣動aventics安沃馳
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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)閥到達電液閥主閥芯的兩端(即電液換向閥主閥體兩端蓋側(cè)),通過電磁先導(dǎo)閥的換向,D1VW002KNJW91
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D3W015EVTW來實現(xiàn)主閥芯的左右移動,從而開通或切斷通往執(zhí)行元件的油路,使執(zhí)行元件運行或停止。但在打開或切斷油路的瞬間,系統(tǒng)中會產(chǎn)生相當大的沖擊,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R900719426 ?DBEM30-3X/50YG24K4M
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R900958282 LFA25EH2-7X/CA20DQMG24F。為了減小及至消除由此引起的液壓沖擊,最簡單的辦法是在該電液閥下面疊加一個P口節(jié)流閥或進油節(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)位時間,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。DB10-1-5X/200
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