1：单向阀在煤矿机械液压支撑装置中具有较大的使用。液体控制单向阀与普通单向阀不同，它的工作原理是增加一个控制油路K，当控制油路没有接上压力油液时。在控制油路有受控压力的情况下，活塞顶杆在压力油的作用下右移，利用顶杆顶开单向阀，使出油口连接。如果出口大于进口出口，则可使油液逆向流动:2：油从A流到A流或B流到B流，逆流流。如从A到A1的油流通过阀门，压力油作用于阀芯，阀芯向右移动，使钢球离开阀座。在控制油开启的情况下，油可以从B1循环到B循环。B1腔的压力卸载，单向阀全部打开。为了确保两个主单向阀在换向阀中位时能够可靠地关闭，并将A、B口连接到回油路。
Rexroth力士乐单向阀部分型号如下：
R983063146 SV20PA2-4X/VIN010
R983040196 SV20PA3-4XIN010
R983040197 SV20PB1-4XIN010
R983040198 SV20PB1-4X/VIN010
R983040199 SV20PB2-4XIN010
R983040200 SV30GA1-4XIN010
R983040202 SV30PA1-4X/VIN010
R983040203 SV30PA2-4XIN010
R983049151 SV30PA3-4X/VIN010
R983040204 SV30PB1-4XIN010
R983040205 SV30PB1-4X/VIN010
R983040206 SV30PB2-4XIN010
R983040207 SV30PB3-4X/IN010
R983064829 SV30GB3-4X/IN010
R901232640 SL6PA1-6X/
R901232641 SL6PA1-6X/V
R901427400 SL6PA1-6X/VJ3
R901439613 SL6PA2-6X/
R901432052 SL6PA2-6X/VJ3
R901387396 SL6PA3-6X/
R901429564 SL6PA3-6X/VJ3
R900491117 SL6PB1-6X/
R900594742 SL6PB1-6X/V
R901361958 SL6PB1-6X=
R900590409 SL6PB2-6X/
R900523244 SL6PB2-6X/V
R900590651 SL6PB3-6X/
R900567192 SL6PB3-6X/V
R900597726 SL6PB4-6X/
R900934694 SL6PB4-6X/V
R900483370 SL10GA1-4X/
R900450160 SL10GA1-4X/V
R983052991 SL10GA1-4X/VIN010
R900062179 SL10GA1-4X/V/12
R900450776 SL10GA2-4X/
R900502670 SL10GA2-4X/V
R978014265 SL10GA2-4X/V/12
R901363026 SL10GA2-4X=
R900454520 SL10GA3-4X/
R900591065 SL10GA3-4X/V
R900445826 SL10GA4-4X/
R900718605 SL10GA4-4X/V
R983065084 SL10GA4–4X/VIN010
R900451135 SL10GB1-4X/
R900580052 SL10GB1-4X/V
R900474395 SL10GB2-4X/
R900473900 SL10GB2-4X/V
R900447726 SL10GB3-4X/
R901426808 SL10GB3-4X/QMG24
R900522041 SL10GB3-4X/V
R900536395 SL10GB4-4X/
R900483371 SL10PA1-4X/
R90143021BSL10PA1-4X/J3
R900537478 SL10PA1-4X/SO96
R900457388 SL10PA1-4X/V
R900442260 SL10PA2-4X/
R900503741 DR10-5-53/200Y
R900503742 DR10-5-5X/50Y
R900504798 DR10DP2-44/75YMV
R900505901 DR10DP2-44/25Y
R900506095 DR10DP1-43/210YM
R900507303 DR10DP1-43/150Y
R900507672 DR10DP1-4X/25Y
R900508498 DR30-4-52/200Y
R900509344 DR10DP2-4X/25YMV
R900510114 DR20-5-52/200YV
R900511041 DR10G5-52/315YM
R900512734 DR6DP7-52/25Y
R900513985 DR30-4-53/200YM
R900514994 DR10-7-53/100Y
R900516293 DR10DP2-4X/150YMV
R900516873 DR10DP2-4X/210YMV
R900520651 DR10-6-5X/100YV
R900521189 DR25G5-5X/50YM
R900522399 DR10DP3-43/150YV
R900525725 DR10DP2-43/210YV
R900528076 DR20-5-52/315YMV
R900533233 DR15G5-52/200YMV
R900562490 DR30-4-52/315YV
R900563901 DR30G5-52/315YMV
R900568522 DR20-5-5X/200YMV
R900582101 DR20-6-5X/315YM
R900592501 DR6DP2-5X/315YM
R900594125 DR10DP2-4X/210Y
R900594126 DR10DP3-4X/25YM
R900594127 DR10DP7-4X/150YM
R900596339 DR30-5-5X/100Y
R900596500 DR30-5-52/200Y
R900596629 DR20-4-5X/315Y
R900596662 DR30-6-53/100Y
R900596687 DR30-5-53/100YV
R900596712 DR10-6-53/100Y
R900596754 DR20-5-53/315YM
R900596764 DR10-4-53/315Y
R900596766 DR10-5-53/100Y
R900596814 DR30-5-53/315YM
R900596815 DR20-4-5X/100YM
R900596823 DR10-4-5X/200YM
R900596862 DR20G5-5X/100YM
以上型号如未找到您需要的产品型号，欢迎来电咨询。真诚的等待您的来电洽谈！
