Parker派克RE*T(升級為RE*S)系(xi)列比例(li)溢流(liu)(liu)閥(fa),是(shi)由一(yi)(yi)個比例(li)電(dian)(dian)磁鐵操縱的(de)(de)帶集(ji)成(cheng)的(de)(de)電(dian)(dian)子(zi)控制(zhi)元件的(de)(de)先(xian)導級和(he)一(yi)(yi)個DIN-標(biao)準的(de)(de)NG25的(de)(de)插(cha)裝(zhuang)閥(fa)作(zuo)主級所(suo)組(zu)成(cheng)的(de)(de)。電(dian)(dian)源電(dian)(dian)壓(ya)(ya)(ya)以及給定(ding)值信(xin)號(hao)(電(dian)(dian)流(liu)(liu)或電(dian)(dian)壓(ya)(ya)(ya)值)可以通過(guo)一(yi)(yi)個七針插(cha)頭進行傳輸(shu)(shu)。輸(shu)(shu)入的(de)(de)指令可在0至10V或0至20mA間,參(can)見訂貨(huo)號(hao)。壓(ya)(ya)(ya)力(li)增大和(he)壓(ya)(ya)(ya)力(li)降低的(de)(de)斜坡時間可以在兩個電(dian)(dian)位(wei)計上(shang)互(hu)不(bu)(bu)干(gan)涉地進行調節。當(dang)不(bu)(bu)改變全部有用(yong)的(de)(de)信(xin)號(hao)范圍(wei)時,zui大和(he)zui小電(dian)(dian)位(wei)可以確定(ding)液壓(ya)(ya)(ya)系(xi)統(tong)的(de)(de)壓(ya)(ya)(ya)力(li)范圍(wei)。對于(yu)不(bu)(bu)同的(de)(de)壓(ya)(ya)(ya)力(li)等級在先(xian)導閥(fa)上(shang)使用(yong)相應(ying)的(de)(de)調節噴嘴。 溢流閥是一種液壓(ya)壓(ya)力控(kong)制閥,在液壓(ya)設備中主(zhu)要起定壓(ya)溢流作(zuo)用,穩(wen)壓(ya),系統(tong)卸荷和安全保(bao)護作(zuo)用。 定壓(ya)溢(yi)流(liu)(liu)(liu)作用(yong):在定量(liang)泵(beng)(beng)節流(liu)(liu)(liu)調節系統中(zhong),定量(liang)泵(beng)(beng)提(ti)供的(de)是恒定流(liu)(liu)(liu)量(liang)。當系統壓(ya)力增大時,會使流(liu)(liu)(liu)量(liang)需(xu)求減小。此(ci)時溢(yi)流(liu)(liu)(liu)閥(fa)開啟,使多余(yu)流(liu)(liu)(liu)量(liang)溢(yi)回油箱(xiang),保(bao)證溢(yi)流(liu)(liu)(liu)閥(fa)進口壓(ya)力,即泵(beng)(beng)出口壓(ya)力恒定(閥(fa)口常隨壓(ya)力波動開啟)。 穩(wen)(wen)壓作用(yong):溢(yi)流閥串聯在回(hui)油路上,溢(yi)流閥產生(sheng)背壓,運動(dong)部件平穩(wen)(wen)性(xing)增加。 系統卸荷作(zuo)用:在溢流(liu)閥(fa)的(de)遙控口串(chuan)接溢小流(liu)量的(de)電(dian)磁(ci)閥(fa),當電(dian)磁(ci)鐵通電(dian)時(shi),溢流(liu)閥(fa)的(de)遙控口通油箱,此時(shi)液壓泵(beng)卸荷。溢流(liu)閥(fa)此時(shi)作(zuo)為卸荷閥(fa)使(shi)用。 安全(quan)保護作用:系統正常工作時,閥門關閉。只有負載超過(guo)(guo)規定的(de)極限(系統壓力超過(guo)(guo)調定壓力)時開啟溢流(liu),進行過(guo)(guo)載保護,使系統壓力不再增加(jia)(通常使溢流(liu)閥的(de)調定壓力比(bi)系統zui高工作壓力高10%~20%)。 實(shi)際應用(yong)中一般有:作卸荷閥用(yong),作遠程(cheng)調壓閥,作高低壓多級(ji)控制閥,作順序(xu)閥,用(yong)于產生背壓(串在回油路上)。 溢流閥(fa)一(yi)般有(you)兩種結構:1、直動型溢流閥(fa) 。2、先導式溢流閥(fa)。 對溢(yi)流(liu)閥的(de)主(zhu)要(yao)要(yao)求:調壓(ya)范圍(wei)大(da),調壓(ya)偏差小(xiao)(xiao),壓(ya)力振(zhen)擺小(xiao)(xiao),動作靈敏(min),過載能(neng)力大(da),噪聲(sheng)小(xiao)(xiao)。 美國原裝PARKER溢流閥(fa) RE10R17T4SN1G0M RE10R35W4SN1XWM RE10M35W4SN1XWM RE10M17W4SN1XWM RE10M35T4SN1F0 RE10M10T4SN1F0 RE10M17T4SN1F0 RE10M25T4SN1F0 RE10M35T4SN1G0 RE10M35T1SV1F0M RE10R25W4SN1XWM RE10M35T1SN1F0 RE10M35W1SN1KWM RE10R25T4SN1F0M RE10M25W4SN1KWM RE10M25W4SN1XWM RE10R35T4SN1F0 RE10M25T4SN1R0 RE10R35W1SN1XWM RE10R17T4SN1R0M RE10M17T4SN1R0 RE10M35W4SN1KWM RE10M35W1SN1XWM RE10M35W1SV1KWM RE10R35T1SN1F0 RE10M10T4SN1R0 RE10R25W1SN1KW RE10R35W4SN1KW RE10M25T1SN1R0 RE10M17W1SN1XWM RE10R35T1SN1F0M RE10M10W4SN1KWM RE10M10W4SN1XWM RE10R17W1SN1XW RE10R17T4SN1F0M RE10M17W4SN1KWM RE10M10W1SN1KWM RE10M25T1SN1F0M RE10R25W1SN1XWM RE10R17W4SN1XW RE10R35W1SN1KW RE10R35W1SN1KWM RE10R10W4SN1KW RE10R35T4SN1F0M RE10R35W4SN1KWM RE10M35W4SV1XWM RE10R25T1SN1F0 RE10R17T1SN1F0M RE10M25T4SN1F0M RE10R10W4SV1KWM RE10R17T4SN1G0M46 RE10R35W4SN1XWM41 RE10M35W4SN1XWM41 RE10M17W4SN1XWM41 RE10M35T4SN1F046 RE10M10T4SN1F046 RE10M17T4SN1F046 RE10M25T4SN1F046 RE10M35T4SN1G046 RE10M35T1SV1F0M46 RE10R25W4SN1XWM41 RE10M35T1SN1F046 RE10M35W1SN1KWM41 RE10R25T4SN1F0M46 RE10M25W4SN1KWM41 RE10M25W4SN1XWM41 RE10R35T4SN1F046 RE10M25T4SN1R046 RE10R35W1SN1XWM41 RE10R17T4SN1R0M46 RE10M17T4SN1R046 RE10M35W4SN1KWM41 RE10M35W1SN1XWM41 RE10M35W1SV1KWM41 RE10R35T1SN1F046 RE10M10T4SN1R046 RE10R25W1SN1KW41 RE10R35W4SN1KW41 RE10M25T1SN1R046 RE10M17W1SN1XWM41 RE10R35T1SN1F0M46 RE10M10W4SN1KWM41 RE10M10W4SN1XWM41 RE10R17W1SN1XW41 RE10R17T4SN1F0M46 RE10M17W4SN1KWM41 RE10M10W1SN1KWM41 RE10M25T1SN1F0M46 RE10R25W1SN1XWM41 RE10R17W4SN1XW41 RE10R35W1SN1KW41 RE10R35W1SN1KWM41 RE10R10W4SN1KW41 RE10R35T4SN1F0M46 RE10R35W4SN1KWM41 RE10M35W4SV1XWM41 RE10R25T1SN1F046 RE10R17T1SN1F0M46 RE10M25T4SN1F0M46 RE10R10W4SV1KWM41 RE16E17W1SN1XW RE16E25T1SN1F0 RE16E25W1SN1XWM RE16E35T1SN1F0 RE16E10T1SN1F0M RE16E35W1SN1XW RE16E17T1SN1R0 RE16E17W1SN1XW25 RE16E25T1SN1F021 RE16E25W1SN1XWM25 RE16E35T1SN1F021 RE16E10T1SN1F0M21 RE16E35W1SN1XW25 RE16E17T1SN1R021 RE25M17W4SN1XWM RE25M35W4SN1KWM RE25E17W1SN1XW RE25E35W1SN1KWM RE25M25T4SN1F0 RE25M35T4SN1F0M RE25M25W4SN1XWM RE25M25W4SN1KWM RE25R35T4SN1F0M RE25R35T4SN1F0 RE25R35W4SN1XWM RE25R35W4SN1KW RE25M35T4SV1F0M RE25E25W1SN1KW RE25M17W1SN1XWM RE25R35W1SN1XWM RE25M35W4SN1XWM RE25R25W1SN1KW RE25R25W1SN1XW RE25M35W1SN1XWM RE25M35W1SV1KWM RE25M10W4SN1XWM RE25R35W4SN1KWM RE25E25W1SN1XWM RE25R25W1SN1XWM RE25E35W1SN1XW RE25M10W4SN1KWM RE25M25W1SN1XWM RE25M17W1SN1KWM SK-RE25MN40 RE25R35W1SN1KW RE25R35T1SN1R0 RE25M25T1SV1F0M RE25M35T4SN1R0M RE25M17T4SN1F0 RE25R35T1SN1F0M RE25M17W4SN1KWM RE25R35T1SN1R0M RE25E25W1SV1XW RE25E35T1SN1F0M RE25R10W4SV1KWM RE25R17T1SN1F0M RE25M17W4SN1XWM41 RE25M35W4SN1KWM41 RE25E17W1SN1XW25 RE25E35W1SN1KWM25 RE25M25T4SN1F046 RE25M35T4SN1F0M46 RE25M25W4SN1XWM41 RE25M25W4SN1KWM41 RE25R35T4SN1F0M46 RE25R35T4SN1F046 RE25R35W4SN1XWM41 RE25R35W4SN1KW41 RE25M35T4SV1F0M46 RE25E25W1SN1KW25 RE25M17W1SN1XWM41 RE25R35W1SN1XWM41 RE25M35W4SN1XWM41 RE25R25W1SN1KW41 RE25R25W1SN1XW41 RE25M35W1SN1XWM41 RE25M35W1SV1KWM41 RE25M10W4SN1XWM40 RE25R35W4SN1KWM41 RE25E25W1SN1XWM25 RE25R25W1SN1XWM41 RE25E35W1SN1XW25 RE25M10W4SN1KWM40 RE25M25W1SN1XWM41 RE25M17W1SN1KWM41 SK-RE25MT/WN40/41 RE25R35W1SN1KW41 RE25R35T1SN1R046 RE25M25T1SV1F0M46 RE25M35T4SN1R0M46 RE25M17T4SN1F046 RE25R35T1SN1F0M46 RE25M17W4SN1KWM41 RE25R35T1SN1R0M46 RE25E25W1SV1XW25 RE25E25T1SN1F0M21 RE25R10W4SV1KWM41 RE25R17T1SN1F0M46 |