VT-VRPA1-537-10/V0/QV-RT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)）T6D-038-2R00-C1  
 T6D-042-1R00-C1 
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T6E-062-2R00-C1
，通過電磁先導(dǎo)閥的換向，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(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，*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3DREPE6B-2X-25EG24N9K31/F1M-00
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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。R900949806 4WREE10W50-2X/G24K31/F1V
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檢查電機轉(zhuǎn)向是否正確，正對電機葉片看，應(yīng)順時針轉(zhuǎn);再檢查三相交流電源每相 電壓是否平衡，電壓是否太低。9、使用方法不正確，造成油管震動后使用壽命降低; PVV2-1X/055RA15DMB，
PVV2-1X/060RA15DMB，
PVV2-1X/068RA15DMB，
PVV4-1X/069RA15DMB，
PVV4-1X/082RA15DMB，
PVV4-1X/098RA15DMB，
PVV4-1X/113RA15DMB，
PVV4-1X/122RA15DMB，
PVV5-1X/139RA15DMB，
PVV5-1X/154RA15DMB，
PVV5-1X/162RA15DMB，
PVV5-1X/183RA15DMB，
PVV5-1X/193RA15DMB
PVQ2-1X055RA15DLMB，
PVQ2-1X068RA15DLMB，
PVQ21-1X060-018RA15DLMB，
PVQ4-1X/82RA-15DMC，
PVQ4-1X/98RA-15DMC，
PVQ4-1X/113RA-15DMC，
PVQ4-1X/122RA-15DMC，
PVQ5-1X/139/154/162/193，
PVQ21-1X/060-040RA15DDMB，
PVQ21-1X/068-027RA15LUMB，