美國PARKER派克先導(dǎo)式比例溢流閥芯在合力的作用下處于zui下端位置，閥口關(guān)閉。當(dāng)進(jìn)油壓力增大到使先導(dǎo)閥打開時，液流通過主閥芯上的阻尼孔5、先導(dǎo)閥1流回油箱。由于阻尼孔的阻尼作用，使主閥芯6所受到的上下兩個方向的液壓力不相等，主閥芯在壓差的作用下上移，打開閥口，實現(xiàn)溢流，并維持壓力基本穩(wěn)定。調(diào)節(jié)先導(dǎo)閥的調(diào)壓彈簧9，便可調(diào)整溢流壓力。 先導(dǎo)型溢流閥的結(jié)構(gòu)圖，其主閥芯為帶有圓柱面的錐閥。為使主閥關(guān)閉時有良好的密封性，要求主閥芯1的圓柱導(dǎo)向面和圓錐面與閥套配合良好，兩處的同心度要求較高，故稱二節(jié)同心。主閥芯上沒有阻尼孔，而將三個阻尼孔2、3、4分別設(shè)在閥體10和先導(dǎo)閥體6上。其工作原理與三節(jié)同心Parker派克RE*W系列先導(dǎo)式比例溢流閥相同，只不過油液從主閥下腔到主閥上腔，需經(jīng)過三個阻尼孔。阻尼孔2和4相串聯(lián)，相當(dāng)三節(jié)同芯閥主閥芯中的阻尼孔，是半橋回路中的進(jìn)油節(jié)流口，作用是使主閥下腔與先導(dǎo)閥前腔產(chǎn)生壓力差，再通過阻尼孔3作用于主閥上腔，從而控制主閥芯開啟。阻尼孔3的主要作用是用以提高主閥芯的穩(wěn)定性，它的設(shè)立與橋路無關(guān)。 RE10M10T4SN1F0 RE10M10T4SN1F046 RE10M10T4SN1R0 RE10M10T4SN1R046 RE10M10W1SN1KWMRE10M10W1SN1KWM41 RE10M10W4SN1KWM RE10M10W4SN1KWM41 RE10M10W4SN1XWM RE10M10W4SN1XWM41 RE10M17T4SN1F0 RE10M17T4SN1F046 RE10M17T4SN1R0 RE10M17T4SN1R046 RE10M17W1SN1XWM RE10M17W1SN1XWM41 RE10M17W4SN1KWM RE10M17W4SN1KWM41 RE10M17W4SN1XWM RE10M17W4SN1XWM41 RE10M25T1SN1F0M RE10M25T1SN1F0M46 RE10M25T1SN1R0 RE10M25T1SN1R046 RE10M25T4SN1F0 RE10M25T4SN1F046 RE10M25T4SN1F0M RE10M25T4SN1F0M46 RE10M25T4SN1R0 RE10M25T4SN1R046 RE10M25W4SN1KWM RE10M25W4SN1KWM41 RE10M25W4SN1XWMRE10M25W4SN1XWM41 RE10M35T1SN1F0 RE10M35T1SN1F046 RE10M35T1SV1F0M RE10M35T1SV1F0M46 RE10M35T4SN1F0 RE10M35T4SN1F046 RE10M35T4SN1G0 RE10M35T4SN1G046 RE10M35W1SN1KWM RE10M35W1SN1KWM41 RE10M35W1SN1XWMRE10M35W1SN1XWM41 RE10M35W1SV1KWM RE10M35W1SV1KWM41 RE10M35W4SN1KWM RE10M35W4SN1KWM41 RE10M35W4SN1XWMRE10M35W4SN1XWM41 RE10M35W4SV1XWM RE10M35W4SV1XWM41 RE10R10W4SN1KW RE10R10W4SN1KW41 RE10R10W4SV1KWM RE10R10W4SV1KWM41 RE10R17T1SN1F0M RE10R17T1SN1F0M46 RE10R17T4SN1F0M RE10R17T4SN1F0M46 RE10R17T4SN1G0MRE10R17T4SN1G0M46 RE10R17T4SN1R0MRE10R17T4SN1R0M46 RE10R17W1SN1XWRE10R17W1SN1XW41 RE10R17W4SN1XW RE10R17W4SN1XW41 RE10R25T1SN1F0 RE10R25T1SN1F046 RE10R25T4SN1F0M RE10R25T4SN1F0M46 RE10R25W1SN1KWRE10R25W1SN1KW41 RE10R25W1SN1XWM RE10R25W1SN1XWM41 RE10R25W4SN1XWM RE10R25W4SN1XWM41 RE10R35T1SN1F0 RE10R35T1SN1F046 RE10R35T1SN1F0M RE10R35T1SN1F0M46 RE10R35T4SN1F0 RE10R35T4SN1F046 RE10R35T4SN1F0M RE10R35T4SN1F0M46 RE10R35W1SN1KW RE10R35W1SN1KW41 RE10R35W1SN1KWM RE10R35W1SN1KWM41 RE10R35W1SN1XWM RE10R35W1SN1XWM41 RE10R35W4SN1KW RE10R35W4SN1KW41 RE10R35W4SN1KWM RE10R35W4SN1KWM41 RE10R35W4SN1XWMRE10R35W4SN1XWM41 RE25M10W4SN1KWMRE25M10W4SN1KWM40 RE25M10W4SN1XWM RE25M10W4SN1XWM40 RE25M17T4SN1F0 RE25M17T4SN1F046 RE25M17W1SN1KWM RE25M17W1SN1KWM41 RE25M17W1SN1XWMRE25M17W1SN1XWM41 RE25M17W4SN1KWM RE25M17W4SN1KWM41 RE25M17W4SN1XWM RE25M17W4SN1XWM41 RE25M25T1SV1F0M RE25M25T1SV1F0M46 RE25M25T4SN1F0RE25M25T4SN1F046 RE25M25W1SN1XWM RE25M25W1SN1XWM41 RE25M25W4SN1KWMRE25M25W4SN1KWM41 RE25M25W4SN1XWM RE25M25W4SN1XWM41 RE25M35T4SN1F0M RE25M35T4SN1F0M46 RE25M35T4SN1R0M RE25M35T4SN1R0M46 RE25M35T4SV1F0M RE25M35T4SV1F0M46 RE25M35W1SN1XWM RE25M35W1SN1XWM41 RE25M35W1SV1KWMRE25M35W1SV1KWM41 RE25M35W4SN1KWMRE25M35W4SN1KWM41 RE25M35W4SN1XWM RE25M35W4SN1XWM41 RE25R10W4SV1KWMRE25R10W4SV1KWM41 RE25R17T1SN1F0M RE25R17T1SN1F0M46 RE25R25W1SN1KWRE25R25W1SN1KW41 RE25R25W1SN1XW RE25R25W1SN1XW41 RE25R25W1SN1XWM RE25R25W1SN1XWM41 RE25R35T1SN1F0MRE25R35T1SN1F0M46 RE25R35T1SN1R0 RE25R35T1SN1R046 RE25R35T1SN1R0M RE25R35T1SN1R0M46 RE25R35T4SN1F0 RE25R35T4SN1F046 RE25R35T4SN1F0M RE25R35T4SN1F0M46 RE25R35W1SN1KW RE25R35W1SN1KW41 RE25R35W1SN1XWMRE25R35W1SN1XWM41 RE25R35W4SN1KW RE25R35W4SN1KW41 RE25R35W4SN1KWM RE25R35W4SN1KWM41 RE25R35W4SN1XWM RE25R35W4SN1XWM41 
派克RE*W系列先導(dǎo)式比例溢流閥，Parker溢流閥好價格，派克比例溢流閥RE*W系列的技術(shù)參數(shù)說明： 
Parker派克RE*W系列先導(dǎo)式比例溢流閥是由一個比例電磁鐵操縱的先導(dǎo)級和一個DIN-標(biāo)準(zhǔn)的NG25的插裝閥作主級所組成的。依靠電的給定信號可以對壓力進(jìn)行無級地調(diào)節(jié)。通過外部的電子模塊將給定值給予控制系統(tǒng)。對于不同的壓力等級在先導(dǎo)閥上使用相應(yīng)的調(diào)節(jié)噴嘴。 RE25M35W1SN1XWM現(xiàn)貨，Parker先導(dǎo)式比例溢流閥 |
