REXROTH先導式單向閥,力士樂液控先導單向閥,Rexroth力士樂先導式液控單向閥,它由先導閥和液控單向閥兩部分用可拆連接組合一體。由先導閥來控制液控單向閥的出口、控制口斷開或接通,實現利用負載壓力推開單向閥,使液流反向流動。為了提高密封性和確保良好使用壽命,先導閥和液控單向閥的閥芯閥座采用軟硬結構,閥芯軟密封面壓縮量在閥座上受限制。特別適用于需長期保壓的液壓系統,用于氣壓系統效果相同。
現場實踐證明,力士樂Rexroth液控單向閥在使用維修過程中容易出現問題,以下是注意事項。
(1)必須保證液控單向閥有足夠的控制壓力,不允許控制壓力失壓。應注意控制壓力是否滿足反向開啟的要求。如果液控單向閥的控制引自主系統時,則要分析主系統壓力的變化對控制油路壓力的影響,以免出現液控單向閥的誤動作。
(2)根據液控單向閥在液壓系統中的位置或反向出油腔后的液流阻力(背壓)大小,合理選擇液控單向閥的結構(簡式或復式)及泄油方式(內泄或外泄)。對于內泄式液控單向閥來說,當反向油出口壓力超過一定值時,液控部分將失去控制作用,故內泄式液控單向閥一般用于反向出油腔無背壓或背壓較小的場合;而外泄式液控單向閥可用于反向出油腔背壓較高的場合,以降低zui小的控制壓力,節省控制功率。系統若采用內卸式,則柱塞缸將斷續下降發出振動和噪聲。
SV6PB1-6X/, SV6PB1-6X/V ,SV6PB2-6X/ ,SV6PB3-6X/ ,SV6PB3-6X/V ,SV6PB4-6X/ ,
SV6PB4-6X/V ,SV10GA1-4X/ ,SV10GA1-4X/V ,SV10GA2-4X/ ,SV10GA2-4X/V ,SV10GA3-4X/ ,SV10GA3-4X/V ,SV10GA4-4X/ ,SV10GA4-4X/V ,SV10GB1-4X/ ,SV10GB1-4X/V ,SV10GB2-4X/ ,SV10GB2-4X/V ,SV10GB3-4X/ ,SV10GB4-4X/ ,SV10GB4-4X/V ,SV10PA1-4X/ ,SV10PA1-4X/V ,SV10PA2-4X/ ,SV10PA2-4X/V ,SV10PA3-4X/ ,SV10PA3-4X/V ,SV10PA4-4X/ ,SV10PA4-4X/V ,SV10PB1-4X/ ,SV10PB1-4X/V ,SV10PB2-4X/ ,SV10PB2-4X/V ,SV10PB3-4X/ ,SV10PB3-4X/V ,SV10PB4-4X/ ,SV10PB4-4X/V, SV15GA1-4X/ ,RVP6-10 RVP8-10 RVP10-10 RVP15-10 RVP20-10 , SV15GA1-4X/V ,SV15GA2-4X/ ,SV15GA2-4X/V,SV15GA3-4X/ ,SV15GA3-4X/V ,SV15GA4-4X/ ,SV15GA4-4X/V ,SV15GB1-4X/ ,SV15GB1-4X/V ,SV15GB2-4X/ ,SV15GB2-4X/V ,SV15GB3-4X/ ,SV15GB3-4X/V ,SV15GB4-4X/
力士樂SV/SL型單向閥:SV15GB4-4X/V ,SV20GA1-4X/ ,SV20GA1-4X/V ,SV20GA2-4X/ ,SV20GA3-4X/ ,SV20GA4-4X/ ,SV20GA4-4X/V ,SV20GB1-4X/ ,SV20GB1-4X/V ,SV20GB2-4X/ ,SV20GB3-4X/ ,SV20GB4-4X/ ,SV20GB4-4X/V ,SV20PA1-4X/ ,SV20PA1-4X/V ,SV20PA2-4X/ ,SV20PA2-4X/V ,SV20PA3-4X/ ,SV20PA3-4X/V ,SV20PA4-4X/ ,SV20PA4-4X/V ,SV20PB1-4X/ ,SV20PB1-4X/V ,SV20PB2-4X/ ,SV20PB2-4X/V ,SV20PB3-4X/ ,SV20PB4-4X/ ,SV25GA1-4X/ ,SV25GA1-4X/V ,SV25GA2-4X/ ,SV25GA2-4X/V ,SV25GA3-4X/ ,SV25GA4-4X/ ,SV25GB1-4X/ ,SV25GB1-4X/V ,SV25GB2-4X/ ,SV25GB2-4X/V ,SV25GB3-4X/ ,SV25GB3-4X/V ,SV30GA1-4X/ ,SV30GA1-4X/V ,SV30GA2-4X/ ,SV30GA2-4X/V ,SV30GA3-4X/ ,SV30GA4-4X/ ,SV30GB1-4X/ ,SV30GB2-4X/ ,SV30GB2-4X/V ,SV30GB3-4X/ ,SV30GB4-4X/ ,SV30PA1-4X/ ,SV30PA1-4X/V ,SV30PA2-4X/ ,SV30PA2-4X/V ,SV30PA3-4X/ ,SV30PA3-4X/V ,SV30PA4-4X/ ,SV30PA4-4X/V ,SV30PB1-4X/ ,SV30PB1-4X/V ,SV30PB2-4X/ ,
SV30PB2-4X/V ,SV30PB3-4X/ ,SV30PB3-4X/V, SV30PB4-4X/ ,SV30PB4-4X/V ,SL6PB1-6X/ ,SL6PB1-6X/V ,SL6PB2-6X/ ,SL6PB2-6X/V ,SL6PB3-6X/ ,SL6PB3-6X/V, SL6PB4-6X/ ,SL6PB4-6X/V ,SV6PB2-6X/V ,SL10GA1-4X/ ,SL10GA1-4X/V ,SL10GA2-4X/ ,SL10GA2-4X/V ,SL10GA3-4X/ ,SL10GA3-4X/V ,SL10GA4-4X/ ,SL10GA4-4X/V ,SL10GB1-4X/ ,SL10GB1-4X/V ,SL10GB2-4X/ ,SL10GB2-4X/V ,SL10GB3-4X/ ,SL10GB3-4X/V ,SL10GB4-4X/ ,SL10PA1-4X/ ,SL10PA1-4X/V ,SL10PA2-4X/ ,SL10PA2-4X/V ,SL10PA3-4X/ ,SL10PA3-4X/V ,SL10PA4-4X/ ,SL10PA4-4X/V ,SL10PB1-4X/ ,SL10PB1-4X/V ,SL10PB2-4X/ ,SL10PB2-4X/V ,SL10PB3-4X/ ,SL10PB3-4X/V ,SL10PB4-4X/ ,SL10PB4-4X/V ,SL15GA1-4X/ ,SL15GA1-4X/V ,SL15GA2-4X/ ,SL15GA2-4X/V ,SL15GA3-4X/ ,SL15GA3-4X/V ,SL15GA4-4X/ ,SL15GB1-4X/ ,SL15GB1-4X/V ,SL15GB2-4X/ ,SL15GB2-4X/V ,SL15GB3-4X/ ,SL15GB4-4X/ ,SL20GA1-4X/ ,SL20GA1-4X/V ,SL20GA2-4X/ ,SL20GA2-4X/V ,SL20GA3-4X/ ,SL20GA3-4X/V ,SL20GA4-4X/ ,SL20GA4-4X/V ,SL20GB1-4X/ ,SL20GB1-4X/V ,SL20GB2-4X/ ,SL20GB2-4X/V ,SL20GB3-4X/ ,SL20GB3-4X/V ,SL20GB4-4X/ ,SL20PA1-4X/ ,SL20PA1-4X/V ,SL20PA2-4X/ ,SL20PA2-4X/V ,SL20PA3-4X/ ,SL20PA3-4X/V ,SL20PA4-4X/ ,SL20PA4-4X/V ,SL20PB1-4X/ ,SL20PB1-4X/V ,SL20PB2-4X/ ,SL20PB2-4X/V ,SL20PB3-4X/ ,SL20PB3-4X/V ,SL20PB4-4X/ ,SL20PB4-4X/V ,SL25GA1-4X/ ,SL25GA1-4X/V ,SL25GA2-4X/ ,SL25GA2-4X/V ,SL25GA3-4X/ ,SL25GA3-4X/V ,
SL25GA4-4X/ ,SL25GB1-4X/ ,SL25GB1-4X/V ,SL25GB2-4X/ ,SL25GB2-4X/V ,SL25GB3-4X/ ,SL25GB4-4X/ ,SL25GB4-4X/V ,SL30GA1-4X/ ,SL30GA1-4X/V ,SL30GA2-4X/ ,SL30GA2-4X/V ,SL30GA3-4X/ ,SL30GA3-4X/V ,SL30GA4-4X/ ,SL30GA4-4X/V ,SL30GB1-4X/ ,SL30GB1-4X/V ,SL30GB2-4X/ ,SL30GB2-4X/V ,SL30GB3-4X/ ,SL30GB4-4X/ ,SL30PA1-4X/ ,SL30PA1-4X/V ,SL30PA2-4X/ ,SL30PA2-4X/V ,SL30PA3-4X/ ,SL30PA3-4X/V ,SL30PA4-4X/ ,SL30PA4-4X/V ,SL30PB1-4X/ ,SL30PB1-4X/V ,SL30PB2-4X/ ,SL30PB2-4X/V ,SL30PB3-4X/ ,SL30PB3-4X/V ,SL30PB4-4X/ ,SL30PB4-4X/V ,SF40A0-1-1X/ ,SF40A1-1-1X/ ,SF40K0-1-1X/ ,SF40K1-1-1X/ ,SF50A0-1-1X/ ,SF50A1-1-1X/ ,SF50K0-1-1X/ ,SF50K1-1-1X/ ,SF63A0-1-1X/ ,SF63A1-1-1X/ ,SF63K0-1-1X/ ,SF63K1-1-1X/ ,SF80A0-1-1X/ ,SF80A1-1-1X/ ,SF80K0-1-1X/ ,SF80K1-1-1X/ ,
REXROTH單向閥,力士樂先導式單向閥,力士樂SV/SL型液壓先導單向閥
● 規格6至150
● 帶或不帶泄油口(只適用于6至10規格)
● 可進行預減壓(只適用于10至32規格)
● 底板安裝("P"):
● 規格6:安裝面按DIN 24340 A型和
ISO4401,底板參見RE 45052
● 規格10至32:安裝面按DIN 24340A型
和ISO4401,底板參見RE45062
● 螺紋連接("G")(只適用于規格10至32)
● 法蘭連接("G")(只適用52至150規格)
● 連接法蘭參見RE 45501
● 多個開啟壓力
德國REXROTH單向閥是依靠控制流體壓力,可以使單向閥反向流通的閥。這種閥在煤礦機械的液壓支護設備中占有較重要的地位。液控單向閥與普通單向閥不同之處是多了一個控制油路K,當控制油路未接通壓力油液時,液控單向閥就象普通單向閥一樣工作,壓力油只從進油口流向出油口,不能反向流動。當控制油路油控制壓力輸入時,活塞頂桿在壓力油作用下向右移動,用頂桿頂開單向閥,使進出油口接通。若出油口大于進油口就能使油液反向流動。Rexroth先導式單向閥,力士樂先導式單向閥,Rexroth液控單向閥,力士樂SV/SL型單向閥