力士乐安全阀DBDH6P1X/25 R900430378，德国REXROTH安全阀，购买进口液压、气动、自动化控制工业配件，认准“上海韦米机电设备有限公司”，7年老店，保证产品原厂原装，价格优惠，售后无忧，欢迎新老客户咨询采购！

先导型溢流阀的特点
先导阀和主阀阀芯分别处于受力平衡，其阀口都满足压力流量方程。阀的进口压力由两次比较得到，压力值主要由先导阀调压弹簧的预压缩量确定，主阀弹簀起复位作用。
通过先导阀的流量很小，是主阀额定流量的1%因此其尺寸很小，即使是高压阀，其弹簧刚度也不大。这样一来阀的调节性能有很大改善。
主阀芯开启是利用液流流经阻力孔形成的压力差。阻力孔一般为细长孔，孔径很小0=0.8~1.2mm,孔长I = 8~12mm,因此工作时易堵塞，一旦堵塞则导致主阀口常开无法调压。

先导型溢流阀遥控口接法
先导阀前腔有一遥控口，在该控制口接远程调压阀可实现远控，接电磁阀通回油箱可实现卸载。
远程调压阀实际上是一个独立的压力先导阀，旁接在先导型溢流阀遥控口起远程调压作用，其调定压力必须低于先导阀的调定压力。无论哪个起作用，泵的溢流量始终经主阀阀口回油箱。

溢流阀的功用
溢流阀旁接在泵的出口，用来保证系统压力恒定，称为定压阀。
溢流阀旁接在泵的出口，用来限制系统压力的*大值，对系统起保护作用，称为安全阀。
电磁溢流阀还可以在执行机构不工作时使泵卸载。

直动式溢流阀
调压范围:在规定的范围内调节时，阀的输出压力能平稳的升降，无突跳或迟滞现象。
压力流量特性:
溢流阀的进口压力随流量变化而波动的性能;又称为启闭特性。
(p;-Pk)、(p;-Pp) 称为调压偏差，调压偏差小好
nk=P/p。称为开启压力比，
np=P/p。称为闭合压力比，nk、n,大好。
压力损失和卸载压力:当调压弹簧预压缩量等于零或主阀上腔经遥控口直接接回油箱时，流经阀的流量为额定值时，溢流阀的进口压力。压力损失略高于卸载压力。

减压阀
减压阀是利用液流流过缝隙产生压力损失，使其出口压力低于进口压力的压力控制阀。
按调节要求不同，有定值减压阀，定差减压阀，定比减压阀。
定值减压阀的结构原理
减压阀起减压作用且保证出口压力为定值的条件是:当出口压力大于减压阀的调定压力，使其先导阀开启。
直动式减压阀
减压阀的功用与特点：
减压阀用在液压系统中获得压力低于系统压力的二次油路上
与溢流阀比较:
减压阀是出口压力控制，保证出口压力为定值;溢流阀是进口压力控制，保证进口压力为定值。
减压阀阀口常开;
溢流阀阀口常闭。
减压阀有单独的泄油口;溢流阀弹簧腔的泄漏油经阀体
内流道內泄至出口。
减压阀与溢流阀-样有遥控口。

顺序阀
顺序阀是一种利用压力控制阀口通断的压力阀。
按控制油来源不同分内控和外控，按弹簧腔泄漏油引出方式不同分内泄和外泄。
顺序阀的四种控制方式
通过改变上盖或底盖的装配位置可得到内控外泄、内控内泄、外控外泄、外控内泄四种类型。
内控外泄顺序阀
内控外泄顺序阀与溢流阀非常相象:阀口常闭，进口压力控制，但是该
阀出口油液要去工作，所以有单独的泄油口。
内控外泄顺序阀用于多个执行元件顺序动作。其进口压力先要达到阀的调定压力，而出口压力取决于负载。当负载压力高于阀的调定压力时，进口压力等于出口压力，阀口全开;当负载压力低于调定压力时，进口压力等于调定压力，阀的开口一定。

内控内泄顺序阀与外控顺序阀
内控内泄顺序阀的图形符号和工作原理与溢流阀相同。
多串联在液压系统的回油路上，使回油具有一定压力。
外控内泄顺序阀等同于二位二通阀，可作卸载阀。
外控外泄顺序阀可作液动开关和限速锁。
压力继电器
压力继电器是一种将液压系统的压力信号转换为电信号输出的元件。
其作用是实现执行元件的顺序控制或安全保护。
柱塞式压力继电器的结构原理


RQM*-P型阀是一种溢流阀，具有三种流量规格，大流量为500 l/min。该阀可选用CETOP 安装底板。适用该阀由于选用电磁阀的型号不同，可分为5种型式，其具有卸载和3种压力值选择功能。二级和三级的压力值的调节值可通过连接主阀和电磁阀的溢流阀设定。通常供货时带六角调整螺钉。若需要还可装配SICBLOC调整旋钮调整主压力。


CRQ型阀是一种插装式先导压力控制阀，它可以安装在具有D-10C阀座孔的集成块式阀板上。型底座上。该阀通常用于控制液压阀的压力，在压力接近设定值时，仍然可以使泵在满流量下工作。该阀提供四种压力调整范围，大压力 350 bar。该阀由平衡型主阀和一个先导阀组成。主阀通常处于封闭状态，当回路压力超过由先导阀设定的值时，主阀打开，油液通过 T 口直接回油箱。可用调整螺钉改变设定压力，通常用内六角螺钉，同时装有锁紧螺母和大调节限位器。

顺序阀是指在具有二个以上分支回路的系统中，根据回路的压力等来控制执行元件动作顺序的阀。该阀还可作为卸荷阀和背压阀使用。
按工作原理和结构，顺序阀分直动式和先导式两类；按压力控制方式，顺序阀有内控和外控之分。 在顺序阀中装有单向阀，能通过反向液流的复合阀称为单向顺序阀。一般说来，这种阀使用较多。

顺序阀的基本功能是控制多个执行元件的顺序动作，根据其功能的不同，分别称为顺序阀、背压阀、卸荷阀和平衡阀。 顺序阀的性能与溢流阀基本相同，但由于功能的不同，对顺序阀还有其特殊的要求：
（1）为了使执行元件准确实现顺序动作，要求顺序阀的调压精度高，偏差小；
（2）为了顺序动作的准确性，要求阀关闭时内泄漏量小；
（3）对于单向顺序阀，要求反向压力损失及正向压力损失值均应较小。 顺序阀的主要作用有：
（1）控制多个元件的顺序动作；
（2）用于保压回路；
（3）防止因自重引起油缸活塞自由下落而做平衡阀用；
（4）用外控顺序阀做卸荷阀，使泵卸荷；
（5）用内控顺序阀作背压阀。


顺序阀根据装配结构的不同，可以实现不同的回路功能，如溢流阀、顺序阀和平衡阀的功能。
顺序阀的启闭特性如果太差，则流量较大时一次压力过高，回路效率降低。启闭特性带有滞环，开启压力低于闭合压力，负载流量变化时应予注意。开启压力过低的阀，再压力低于设定压力时发生前漏，引起执行器误动作。通过阀的流量远小于额定流量时，产生振动或其他不稳定现象。此时要再回路上采取措施。
力士乐安全阀DBDH6P1X/25 R900430378
R900430378 DBDH6P1X/25
R900491363 DBDH6P1X/25/V/5
R900572617 DBDH6P1X/250B
R900394559 DBDH6P1X/25J
R900496014 DBDH6P1X/25V
R901351358 DBDH6P1X/265E
R901368849 DBDH6P1X/265VE
R900424266 DBDH6P1X/315
R900391077 DBDH6P1X/315SO32
R900352200 DBDH6P1X/315W1
R900333530 DBDH6P1X/315B
R900393600 DBDH6P1X/315J
R900361835 DBDH6P1X/315V
R900355086 DBDH6P1X/315V/5
R900434128 DBDH6P1X/400
R900331283 DBDH6P1X/400/5
R900576760 DBDH6P1X/400V
R900355087 DBDH6P1X/400V/5
R900428385 DBDH6P1X/50
R900335782 DBDH6P1X/50SO57
R900465419 DBDH6P1X/50SO74
R900475441 DBDH6P1X/50/5
R900355083 DBDH6P1X/50/V/5
R900428843 DBDH6P1X/50V
R900572347 DBDH6P1X/95B
R900424246 DBDH6P1A/100
R900572038 DBDH6P1A/100SO700
R900355084 DBDH6P1A/100/V/5
R900572346 DBDH6P1A/100B
R900424245 DBDH6P1A/100V
R983061306 DBDH6P1A/100VIN010
R900452842 DBDH6P1A/110B
R900427242 DBDH6P1A/200
R900369199 DBDH6P1A/200SO32
R900346537 DBDH6P1A/200SO60
R900346741 DBDH6P1A/200SO62
R900471714 DBDH6P1A/200/5
R900506633 DBDH6P1A/200V
R900355085 DBDH6P1A/200V/5
R900429688 DBDH6P1A/210B
R900430378 DBDH6P1A/25
R900491363 DBDH6P1A/25/V/5
R900572617 DBDH6P1A/250B
R900394559 DBDH6P1A/25J
R900496014 DBDH6P1A/25V
R901351358 DBDH6P1A/265E
R901368849 DBDH6P1A/265VE
R900424266 DBDH6P1A/315
R900391077 DBDH6P1A/315SO32
R900352200 DBDH6P1A/315W1
R900333530 DBDH6P1A/315B
R900393600 DBDH6P1A/315J
R900361835 DBDH6P1A/315V
R900355086 DBDH6P1A/315V/5
R900434128 DBDH6P1A/400
R900331283 DBDH6P1A/400/5
R900576760 DBDH6P1A/400V
R900355087 DBDH6P1A/400V/5
R900428385 DBDH6P1A/50
R900335782 DBDH6P1A/50SO57
R900465419 DBDH6P1A/50SO74
R900475441 DBDH6P1A/50/5
R900355083 DBDH6P1A/50/V/5
R900428843 DBDH6P1A/50V
R900572347 DBDH6P1A/95B
R900442143 DBDH8G1X/100
R901035485 DBDH8G1X/100V
R900384884 DBDH8G1X/110B
R900923616 DBDH8G1X/150B
R900424161 DBDH8G1X/200
R900754113 DBDH8G1X/200/12
R901348992 DBDH8G1X/200J
R900427608 DBDH8G1X/200V
R900582716 DBDH8G1X/200V/12
R900456728 DBDH8G1X/210B
R900440754 DBDH8G1X/25
R900481312 DBDH8G1X/25V
R900526170 DBDH8G1X/25V/12
R900428386 DBDH8G1X/315
R900579782 DBDH8G1X/315/12
R901434145 DBDH8G1X/315J
R901427505 DBDH8G1X/315V
R900585848 DBDH8G1X/315V/12
R900979393 DBDH8G1X/330B
R900429686 DBDH8G1X/400
R900516549 DBDH8G1X/400/12
R900465781 DBDH8G1X/400B
R900466344 DBDH8G1X/400B
R900460309 DBDH8G1X/400V
R900583734 DBDH8G1X/400V/12
R900426158 DBDH8G1X/50
R900534076 DBDH8G1X/50/12
R900434919 DBDH8G1X/630
R900481313 DBDH8G1X/630V
R983040125 DBDH10G1X/025IN010
R983037990 DBDH10G1X/050IN010
R983037991 DBDH10G1X/100IN010
R983037992 DBDH10G1X/200IN010
R983038014 DBDH10G1X/25VIN010
R983037993 DBDH10G1X/315IN010
R983037994 DBDH10G1X/400IN010
R983037984 DBDH10K1X/025IN010
R983038015 DBDH10K1X/025VIN010
R983037985 DBDH10K1X/050IN010
R983037986 DBDH10K1X/100IN010
R983038010 DBDH10K1X/100SPIN010
R983037987 DBDH10K1X/200IN010
R983038011 DBDH10K1X/200SPIN010
R983038012 DBDH10K1X/25SPIN010
R983037988 DBDH10K1X/315IN010
R983038007 DBDH10K1X/315VIN010
R983037989 DBDH10K1X/400IN010
R983037996 DBDH10P1X/050IN010
R983037997 DBDH10P1X/100IN010
R983037998 DBDH10P1X/200IN010
R983044001 DBDH10P1X/25IN010
R983037999 DBDH10P1X/315IN010
R983038000 DBDH10P1X/400IN010
R978863998 DBDH10G1X/100V/12
R978850999 DBDH10G1X/200/12
R978856141 DBDH10G1X/400V/12
R987377504 DBDH10K1X/315SO147
R978870646 DBDH10P1X/100/12
R978012188 DBDH10P1X/200/12
R978856863 DBDH10P1X/315/12
R978841293 DBDH10P1X/50/12
R978841374 DBDH10P1X/630/12
R978841374 DBDH10P1X/630/12
R978857984 DBDH10P1X/630V/12
R978857984 DBDH10P1X/630V/12
R978908935 DBDH15G1X/200V/12
R978916972 DBDH15G1X/25/12
R978859724 DBDH15G1X/25V/12
R978897826 DBDH15G1X/400V/12
R983038040 DBDH20G1X/050IN010
R983038041 DBDH20G1X/100IN010
R983038042 DBDH20G1X/200IN010
R983038042 DBDH20G1X/200IN010
R983038043 DBDH20G1X/315IN010
R983038044 DBDH20G1X/400IN010
R983039645 DBDH20K1X/025IN010
R983038035 DBDH20K1X/050IN010
R983038036 DBDH20K1X/100IN010
R983038037 DBDH20K1X/200IN010
R983038038 DBDH20K1X/315IN010
R983038039 DBDH20K1X/400IN010
R983038045 DBDH20P1X/025IN010
R983038046 DBDH20P1X/050IN010
R983038047 DBDH20P1X/100IN010
R983038048 DBDH20P1X/200IN010
R983038049 DBDH20P1X/315IN010
R978855703 DBDH20G1X/100/12
R978855704 DBDH20G1X/200/12
R978878334 DBDH20G1X/200V/12
R978852760 DBDH20G1X/25V/12
R978857020 DBDH20G1X/315/12
R978855865 DBDH20G1X/315V/12
R978864558 DBDH20G1X/400/12
R978851355 DBDH20G1X/400V/12
R978912709 DBDH25G1X/100/12
R978908560 DBDH30P1X/200/12
R983037944 DBDH6G1X/025IN010
R983037945 DBDH6G1X/050IN010
R983037946 DBDH6G1X/100IN010
R983037947 DBDH6G1X/200IN010
R983037962 DBDH6G1X/200VIN010
R983037948 DBDH6G1X/315IN010
R983049603 DBDH6G1X/315VIN010
R983037949 DBDH6G1X/400IN010
R983037938 DBDH6K1X/025IN010
R983037939 DBDH6K1X/050IN010
R983037940 DBDH6K1X/100IN010
R983037963 DBDH6K1X/100SPIN010
R983037941 DBDH6K1X/200IN010
R983040126 DBDH6K1X/200SPIN010
R983037964 DBDH6K1X/25SPIN0107
R983040127 DBDH6K1X/25VSPIN010
R983037942 DBDH6K1X/315IN010
R983040128 DBDH6K1X/315IN010
R983049753 DBDH6K1X/315VIN010
R983037943 DBDH6K1X/400IN010
R983061628 DBDH6K1X/100VIN010
R983040129 DBDH6K1X/200VSPIN010
R983037961 DBDH6K1X/50VIN010
R983037950 DBDH6P1X/025IN010
R983037951 DBDH6P1X/050IN010
R983037952 DBDH6P1X/100IN010
R983037953 DBDH6P1X/200IN010
R983037954 DBDH6P1X/315IN010
R983037955 DBDH6P1X/400IN010
R978851085 DBDH6G1X/100V/12
R978901982 DBDH6G1X/25/12SO43A-931A
R978866037 DBDH6G1X/315/12SO43A-931A
R978917025 DBDH6G1X/345B/12
R978918448 DBDH6G1X/400/12SO43A-1717
R978853736 DBDH6G1X/50V/12
R987098591 DBDH6K1X/25SO127
R987112949 DBDS6G1X/315/RR4-4513
R987113031 DBDS6G1X/400/RR4-4513
R900441883 DBDS10G1X/
R900424738 DBDS10G1X/100
R900364483 DBDS10G1X/100SO130
R900409673 DBDS10G1X/100SO450
R900342450 DBDS10G1X/100SO74
R900439606 DBDS10G1X/100W1
R900567555 DBDS10G1X/100W100
R900347490 DBDS10G1X/100W40
R900916880 DBDS10G1X/100-075/12
R901020245 DBDS10G1X/100-25/59
R901020237 DBDS10G1X/100-30/59
R901005956 DBDS10G1X/100-35
R901156100 DBDS10G1X/100-40
R901370855 DBDS10G1X/100-50
R901060953 DBDS10G1X/100-55
R901189278 DBDS10G1X/100-60
R900953867 DBDS10G1X/100-70
R900341363 DBDS10G1X/100/12
R900436001 DBDS10G1X/100/2
R900470504 DBDS10G1X/100/5
R901256798 DBDS10G1X/100/59
R900572352 DBDS10G1X/100B
R900420277 DBDS10G1X/100B
R900423746 DBDS10G1X/100B
R900769619 DBDS10G1X/100E
R900487479 DBDS10G1X/100J
R901052283 DBDS10G1X/100J=TE
R901307340 DBDS10G1X/100P025
R901307339 DBDS10G1X/100P065
R900935424 DBDS10G1X/100P080
R900424739 DBDS10G1X/100V
R900389968 DBDS10G1X/100VW40
R900349041 DBDS10G1X/100V/12
R900474917 DBDS10G1X/100V/5
R900924255 DBDS10G1X/100VB
R901181521 DBDS10G1X/100VE
R901233054 DBDS10G1X/105E
R900466366 DBDS10G1X/110/5B
R900423744 DBDS10G1X/110B
R901034804 DBDS10G1X/110E
R900386642 DBDS10G1X/110JB
R900468767 DBDS10G1X/110VB
R900572452 DBDS10G1X/120B
R900772782 DBDS10G1X/120E
R900572453 DBDS10G1X/125B
R901185590 DBDS10G1X/125E
R900572454 DBDS10G1X/130B
R900778044 DBDS10G1X/130E
R900921193 DBDS10G1X/130VB
R900572455 DBDS10G1X/135B
R901185479 DBDS10G1X/135E
R900572456 DBDS10G1X/140B
R901026426 DBDS10G1X/140E
R900572457 DBDS10G1X/150B
R900769507 DBDS10G1X/150E
R900572458 DBDS10G1X/155B
R900572459 DBDS10G1X/160B
R901136834 DBDS10G1X/160E
R901117802 DBDS10G1X/165E
R900429968 DBDS10G1X/170
R900429968 DBDS10G1X/170
R900370316 DBDS10G1X/170/5B
R900424808 DBDS10G1X/170B
R900773192 DBDS10G1X/170E
R900429947 DBDS10G1X/170VB
R900909997 DBDS10G1X/175B
R900572546 DBDS10G1X/180B
R900769606 DBDS10G1X/180E
R901235516 DBDS10G1X/180VE
R900572547 DBDS10G1X/190B
R901013662 DBDS10G1X/190E
R900424140 DBDS10G1X/200
R900433779 DBDS10G1X/200
R900340877 DBDS10G1X/200SO130
R900344863 DBDS10G1X/200SO15
R900493041 DBDS10G1X/200SO27
R900497024 DBDS10G1X/200SO31
R900360512 DBDS10G1X/200SO74
R900400659 DBDS10G1X/200W1
R900703583 DBDS10G1X/200-100
R900731004 DBDS10G1X/200-110
R901210090 DBDS10G1X/200-120
R901037453 DBDS10G1X/200-130
R900953705 DBDS10G1X/200-140
R900940672 DBDS10G1X/200-150
R900910458 DBDS10G1X/200-160
R901117172 DBDS10G1X/200-165
R900962532 DBDS10G1X/200-170
R900971263 DBDS10G1X/200-180
R901256664 DBDS10G1X/200-185
R900341591 DBDS10G1X/200/12
R900392231 DBDS10G1X/200/12SO60
R900442081 DBDS10G1X/200/2
R900470505 DBDS10G1X/200/5
R900946730 DBDS10G1X/200/50
R900572548 DBDS10G1X/200B
R900769540 DBDS10G1X/200E
R900458636 DBDS10G1X/200J
R900563775 DBDS10G1X/200J/12
R901052252 DBDS10G1X/200J=TE
R900520756 DBDS10G1X/200JV
R901240746 DBDS10G1X/200P100
R900951431 DBDS10G1X/200P140
R901347971 DBDS10G1X/200P140/12
R901355397 DBDS10G1X/200P160SO60
R900977656 DBDS10G1X/200P180
R900424741 DBDS10G1X/200V
R900391769 DBDS10G1X/200VSO60
R900343963 DBDS10G1X/200V/12
R900475531 DBDS10G1X/200V/5
R900940422 DBDS10G1X/200VB
R901014788 DBDS10G1X/200VE
R900572549 DBDS10G1X/205B
R900774958 DBDS10G1X/205E
R901229978 DBDS10G1X/210/12E
R900426099 DBDS10G1X/210B
R900769379 DBDS10G1X/210E
R900400298 DBDS10G1X/210VB
R901238752 DBDS10G1X/210VE
R901357023 DBDS10G1X/215E
R900572618 DBDS10G1X/220B
R900772319 DBDS10G1X/220E
R900941189 DBDS10G1X/220VB
R901378805 DBDS10G1X/220VE
R900572619 DBDS10G1X/230B
R900769565 DBDS10G1X/230E
R901395602 DBDS10G1X/230VE
R900572620 DBDS10G1X/240B
R900783238 DBDS10G1X/240E
R900423743 DBDS10G1X/25
R900338391 DBDS10G1X/25SO450
R900391770 DBDS10G1X/25SO60
R900401161 DBDS10G1X/25SO74
R900439333 DBDS10G1X/25W1
R900397355 DBDS10G1X/25W100
R900929857 DBDS10G1X/25-10
R900930354 DBDS10G1X/25-10V
R900913880 DBDS10G1X/25-20
R900923249 DBDS10G1X/25-20V
R900351411 DBDS10G1X/25/12
R900471709 DBDS10G1X/25/5
R900408790 DBDS10G1X/25/V/5
R900572621 DBDS10G1X/250B
R901012705 DBDS10G1X/250E
R901445518 DBDS10G1X/250VE
R900499604 DBDS10G1X/25J
R901053363 DBDS10G1X/25J=TE
R900903942 DBDS10G1X/25P15
R900423889 DBDS10G1X/25V
R900346901 DBDS10G1X/25VW1
R900340153 DBDS10G1X/25V/12
R900572622 DBDS10G1X/260B
R901309515 DBDS10G1X/260E
R900965654 DBDS10G1X/275B
R901011611 DBDS10G1X/275E
R900572623 DBDS10G1X/280B
R900773229 DBDS10G1X/280E
R900572624 DBDS10G1X/300B
R901124323 DBDS10G1X/300E
R901402828 DBDS10G1X/305E
R900572289 DBDS10G1X/30B
R900777079 DBDS10G1X/30E
R900968633 DBDS10G1X/30VB
R900769607 DBDS10G1X/30VE
R901083276 DBDS10G1X/310E
R900424742 DBDS10G1X/315
R900332635 DBDS10G1X/315SO130
R900345136 DBDS10G1X/315SO150
R900587880 DBDS10G1X/315SO284
R900419721 DBDS10G1X/315SO60
R900587502 DBDS10G1X/315SO700
R900372286 DBDS10G1X/315SO74
R900560483 DBDS10G1X/315SO770
R900472760 DBDS10G1X/315W1
R901213049 DBDS10G1X/315-120
R901117166 DBDS10G1X/315-190
R901081750 DBDS10G1X/315-200
R900919942 DBDS10G1X/315-220
R900939820 DBDS10G1X/315-220V
R901036708 DBDS10G1X/315-235
R900915091 DBDS10G1X/315-250
R901216827 DBDS10G1X/315-250V
R900771754 DBDS10G1X/315-270
R900724592 DBDS10G1X/315-275
R900911873 DBDS10G1X/315-290V
R900377746 DBDS10G1X/315/12
R900470506 DBDS10G1X/315/5
R901095276 DBDS10G1X/315/59
R900406279 DBDS10G1X/315/V/5
R900424824 DBDS10G1X/315B
R900427241 DBDS10G1X/315B
R900769430 DBDS10G1X/315E
R900474980 DBDS10G1X/315J
R900529736 DBDS10G1X/315J/12
R901052284 DBDS10G1X/315J=TE
R900594748 DBDS10G1X/315MKB
R900977655 DBDS10G1X/315P210
R900940050 DBDS10G1X/315P220
R901330999 DBDS10G1X/315P230
R901352219 DBDS10G1X/315P240
R901302328 DBDS10G1X/315P255
R901194874 DBDS10G1X/315P260
R901142133 DBDS10G1X/315P280
R901439772 DBDS10G1X/315P290
R900938747 DBDS10G1X/315P300
R900424743 DBDS10G1X/315V
R900340488 DBDS10G1X/315V/12
R901124724 DBDS10G1X/315V/12E
R900489852 DBDS10G1X/315VB
R901341414 DBDS10G1X/315VE
R900572904 DBDS10G1X/320B
R901143312 DBDS10G1X/320E
R900572905 DBDS10G1X/330B
R900769509 DBDS10G1X/330E
R900708266 DBDS10G1X/330VB
R900769616 DBDS10G1X/330VE
R900572906 DBDS10G1X/340B
R901004628 DBDS10G1X/340E
R901142782 DBDS10G1X/345E
R900572907 DBDS10G1X/350B
R901010969 DBDS10G1X/350E
R901403960 DBDS10G1X/350VE
R900572290 DBDS10G1X/35B
R901004635 DBDS10G1X/360E
R900776416 DBDS10G1X/370E
R900572908 DBDS10G1X/375B
R901419086 DBDS10G1X/375E
R900424744 DBDS10G1X/400
R900340395 DBDS10G1X/400SO32
R900337132 DBDS10G1X/400W1
R901421159 DBDS10G1X/400-320
R900967544 DBDS10G1X/400-330
R901283265 DBDS10G1X/400-350
R900934571 DBDS10G1X/400-350V
R900558953 DBDS10G1X/400-370
R901243540 DBDS10G1X/400-400
R900342738 DBDS10G1X/400/12
R900482135 DBDS10G1X/400/12SO150
R900535540 DBDS10G1X/400/2
R900471909 DBDS10G1X/400/5
R900343484 DBDS10G1X/400/V/5
R900424799 DBDS10G1X/400B
R900426187 DBDS10G1X/400B
R900787687 DBDS10G1X/400E
R900381337 DBDS10G1X/400J
R900374117 DBDS10G1X/400JSO73
R901052290 DBDS10G1X/400J=TE
R901147801 DBDS10G1X/400P140
R901348424 DBDS10G1X/400P350V
R901055558 DBDS10G1X/400P370
R901356605 DBDS10G1X/400P400
R900437349 DBDS10G1X/400V
R900395060 DBDS10G1X/400V/12
R900466113 DBDS10G1X/400VB
R901260710 DBDS10G1X/400VE
R900904087 DBDS10G1X/40B
R901015106 DBDS10G1X/40E
R901114853 DBDS10G1X/40VE
R900572966 DBDS10G1X/420B
R900773646 DBDS10G1X/420E
R900915769 DBDS10G1X/420VB
R900979785 DBDS10G1X/440B
R901018676 DBDS10G1X/440E
R900572967 DBDS10G1X/450B
R900574646 DBDS10G1X/485B
R900424745 DBDS10G1X/50
R900343409 DBDS10G1X/50SO130
R900497023 DBDS10G1X/50SO31
R900337135 DBDS10G1X/50SO32
R900401662 DBDS10G1X/50SO50
R900366553 DBDS10G1X/50SO74
R900443130 DBDS10G1X/50W1
R900389365 DBDS10G1X/50W40
R900971932 DBDS10G1X/50-15
R901004502 DBDS10G1X/50-35
R900347687 DBDS10G1X/50/12
R900443393 DBDS10G1X/50/2
R900465670 DBDS10G1X/50/5
R900402960 DBDS10G1X/50/V/5
R900572968 DBDS10G1X/500B
R900520689 DBDS10G1X/500BSO999
R900769561 DBDS10G1X/500E
R900572291 DBDS10G1X/50B
R900423742 DBDS10G1X/50B
R900346412 DBDS10G1X/50B
R901055217 DBDS10G1X/50E
R900485835 DBDS10G1X/50J
R901052297 DBDS10G1X/50J=TE
R900560484 DBDS10G1X/50MT
R900424146 DBDS10G1X/50V
R900358827 DBDS10G1X/50V/12
R901131882 DBDS10G1X/50VE
R900618054 DBDS10G1X/520B
R900779659 DBDS10G1X/520E
R900578531 DBDS10G1X/550B
R901000910 DBDS10G1X/550E
R900572292 DBDS10G1X/55B
R901233052 DBDS10G1X/55E
R900572969 DBDS10G1X/600B
R901167592 DBDS10G1X/600E
R900428380 DBDS10G1X/60B
R901040333 DBDS10G1X/60E
R900442462 DBDS10G1X/60VB
R901182277 DBDS10G1X/60VE
R900423814 DBDS10G1X/630
R900344798 DBDS10G1X/630SO150
R900470981 DBDS10G1X/630SO48
R900461768 DBDS10G1X/630SO52
R900781731 DBDS10G1X/630-620
R900350129 DBDS10G1X/630/12
R900431908 DBDS10G1X/630/5
R900477107 DBDS10G1X/630/V/5
R900432798 DBDS10G1X/630B
R901017729 DBDS10G1X/630E
R900486548 DBDS10G1X/630J
R900594747 DBDS10G1X/630MKB
R900748871 DBDS10G1X/630P580V
R900428976 DBDS10G1X/630V
R900346874 DBDS10G1X/630V/12
R900387485 DBDS10G1X/630VB
R900572353 DBDS10G1X/65B
R901260712 DBDS10G1X/65E
R900496233 DBDS10G1X/700
R900580506 DBDS10G1X/700V
R900572349 DBDS10G1X/70B
R900769413 DBDS10G1X/70E
R901158400 DBDS10G1X/70VE
R900572350 DBDS10G1X/80B
R900423740 DBDS10G1X/80B
R901002782 DBDS10G1X/80E
R900572351 DBDS10G1X/90B
R901167026 DBDS10G1X/95E
R900441883 DBDS10G1A/
R900424738 DBDS10G1A/100
R900364483 DBDS10G1A/100SO130
R900409673 DBDS10G1A/100SO450
R900342450 DBDS10G1A/100SO74
R900439606 DBDS10G1A/100W1
R900567555 DBDS10G1A/100W100
R900347490 DBDS10G1A/100W40
R900916880 DBDS10G1A/100-075/12
R901020245 DBDS10G1A/100-25/59
R901020237 DBDS10G1A/100-30/59
R901005956 DBDS10G1A/100-35
R901156100 DBDS10G1A/100-40
R901370855 DBDS10G1A/100-50
R901060953 DBDS10G1A/100-55
R901189278 DBDS10G1A/100-60
R900953867 DBDS10G1A/100-70
R900341363 DBDS10G1A/100/12
R900436001 DBDS10G1A/100/2
R900470504 DBDS10G1A/100/5
R901256798 DBDS10G1A/100/59
R900572352 DBDS10G1A/100B
R900420277 DBDS10G1A/100B
R900423746 DBDS10G1A/100B
R900769619 DBDS10G1A/100E
R900487479 DBDS10G1A/100J
R901052283 DBDS10G1A/100J=TE
R901307340 DBDS10G1A/100P025
R901307339 DBDS10G1A/100P065
R900935424 DBDS10G1A/100P080
R900424739 DBDS10G1A/100V
R900389968 DBDS10G1A/100VW40
R900349041 DBDS10G1A/100V/12
R900474917 DBDS10G1A/100V/5
R900924255 DBDS10G1A/100VB
R901181521 DBDS10G1A/100VE
R901233054 DBDS10G1A/105E
R900466366 DBDS10G1A/110/5B
R900423744 DBDS10G1A/110B
R901034804 DBDS10G1A/110E
R900386642 DBDS10G1A/110JB
R900468767 DBDS10G1A/110VB
R900572452 DBDS10G1A/120B
R900772782 DBDS10G1A/120E
R900572453 DBDS10G1A/125B
R901185590 DBDS10G1A/125E
R900572454 DBDS10G1A/130B
R900778044 DBDS10G1A/130E
R900921193 DBDS10G1A/130VB
R900572455 DBDS10G1A/135B
R901185479 DBDS10G1A/135E
R900572456 DBDS10G1A/140B
R901026426 DBDS10G1A/140E
R900572457 DBDS10G1A/150B
R900769507 DBDS10G1A/150E
R900572458 DBDS10G1A/155B
R900572459 DBDS10G1A/160B
R901136834 DBDS10G1A/160E
R901117802 DBDS10G1A/165E
R900429968 DBDS10G1A/170
R900429968 DBDS10G1A/170
R900370316 DBDS10G1A/170/5B
R900424808 DBDS10G1A/170B
R900773192 DBDS10G1A/170E
R900429947 DBDS10G1A/170VB
R900909997 DBDS10G1A/175B
R900572546 DBDS10G1A/180B
R900769606 DBDS10G1A/180E
R901235516 DBDS10G1A/180VE
R900572547 DBDS10G1A/190B
R901013662 DBDS10G1A/190E
R900424140 DBDS10G1A/200
R900433779 DBDS10G1A/200
R900340877 DBDS10G1A/200SO130
R900344863 DBDS10G1A/200SO15
R900493041 DBDS10G1A/200SO27
R900497024 DBDS10G1A/200SO31
R900360512 DBDS10G1A/200SO74
R900400659 DBDS10G1A/200W1
R900703583 DBDS10G1A/200-100
R900731004 DBDS10G1A/200-110
R901210090 DBDS10G1A/200-120
R901037453 DBDS10G1A/200-130
R900953705 DBDS10G1A/200-140
R900940672 DBDS10G1A/200-150
R900910458 DBDS10G1A/200-160
R901117172 DBDS10G1A/200-165
R900962532 DBDS10G1A/200-170
R900971263 DBDS10G1A/200-180
R901256664 DBDS10G1A/200-185
R900341591 DBDS10G1A/200/12
R900392231 DBDS10G1A/200/12SO60
R900442081 DBDS10G1A/200/2
R900470505 DBDS10G1A/200/5
R900946730 DBDS10G1A/200/50
R900572548 DBDS10G1A/200B
R900769540 DBDS10G1A/200E
R900458636 DBDS10G1A/200J
R900563775 DBDS10G1A/200J/12
R901052252 DBDS10G1A/200J=TE
R900520756 DBDS10G1A/200JV
R901240746 DBDS10G1A/200P100
R900951431 DBDS10G1A/200P140
R901347971 DBDS10G1A/200P140/12
R901355397 DBDS10G1A/200P160SO60
R900977656 DBDS10G1A/200P180
R900424741 DBDS10G1A/200V
R900391769 DBDS10G1A/200VSO60
R900343963 DBDS10G1A/200V/12
R900475531 DBDS10G1A/200V/5
R900940422 DBDS10G1A/200VB
R901014788 DBDS10G1A/200VE
R900572549 DBDS10G1A/205B
R900774958 DBDS10G1A/205E
R901229978 DBDS10G1A/210/12E
R900426099 DBDS10G1A/210B
R900769379 DBDS10G1A/210E
R900400298 DBDS10G1A/210VB
R901238752 DBDS10G1A/210VE
R901357023 DBDS10G1A/215E
R900572618 DBDS10G1A/220B
R900772319 DBDS10G1A/220E
R900941189 DBDS10G1A/220VB
R901378805 DBDS10G1A/220VE
R900572619 DBDS10G1A/230B
R900769565 DBDS10G1A/230E
R901395602 DBDS10G1A/230VE
R900572620 DBDS10G1A/240B
R900783238 DBDS10G1A/240E
R900423743 DBDS10G1A/25
R900338391 DBDS10G1A/25SO450
R900391770 DBDS10G1A/25SO60
R900401161 DBDS10G1A/25SO74
R900439333 DBDS10G1A/25W1
R900397355 DBDS10G1A/25W100
R900929857 DBDS10G1A/25-10
R900930354 DBDS10G1A/25-10V
R900913880 DBDS10G1A/25-20
R900923249 DBDS10G1A/25-20V
R900351411 DBDS10G1A/25/12
R900471709 DBDS10G1A/25/5
R900408790 DBDS10G1A/25/V/5
R900572621 DBDS10G1A/250B
R901012705 DBDS10G1A/250E
R901445518 DBDS10G1A/250VE
R900499604 DBDS10G1A/25J
R901053363 DBDS10G1A/25J=TE
R900903942 DBDS10G1A/25P15
R900423889 DBDS10G1A/25V
R900346901 DBDS10G1A/25VW1
R900340153 DBDS10G1A/25V/12
R900572622 DBDS10G1A/260B
R901309515 DBDS10G1A/260E
R900965654 DBDS10G1A/275B
R901011611 DBDS10G1A/275E
R900572623 DBDS10G1A/280B
R900773229 DBDS10G1A/280E
R900572624 DBDS10G1A/300B
R901124323 DBDS10G1A/300E
R901402828 DBDS10G1A/305E
R900572289 DBDS10G1A/30B
R900777079 DBDS10G1A/30E
R900968633 DBDS10G1A/30VB
R900769607 DBDS10G1A/30VE
R901083276 DBDS10G1A/310E
R900424742 DBDS10G1A/315
R900332635 DBDS10G1A/315SO130
R900345136 DBDS10G1A/315SO150
R900587880 DBDS10G1A/315SO284
R900419721 DBDS10G1A/315SO60
R900587502 DBDS10G1A/315SO700
R900372286 DBDS10G1A/315SO74
R900560483 DBDS10G1A/315SO770
R900472760 DBDS10G1A/315W1
R901213049 DBDS10G1A/315-120
R901117166 DBDS10G1A/315-190
R901081750 DBDS10G1A/315-200
R900919942 DBDS10G1A/315-220
R900939820 DBDS10G1A/315-220V
R901036708 DBDS10G1A/315-235
R900915091 DBDS10G1A/315-250
R901216827 DBDS10G1A/315-250V
R900771754 DBDS10G1A/315-270
R900724592 DBDS10G1A/315-275
R900911873 DBDS10G1A/315-290V
R900377746 DBDS10G1A/315/12
R900470506 DBDS10G1A/315/5
R901095276 DBDS10G1A/315/59
R900406279 DBDS10G1A/315/V/5
R900424824 DBDS10G1A/315B
R900427241 DBDS10G1A/315B
R900769430 DBDS10G1A/315E
R900474980 DBDS10G1A/315J
R900529736 DBDS10G1A/315J/12
R901052284 DBDS10G1A/315J=TE
R900594748 DBDS10G1A/315MKB
R900977655 DBDS10G1A/315P210
R900940050 DBDS10G1A/315P220
R901330999 DBDS10G1A/315P230
R901352219 DBDS10G1A/315P240
R901302328 DBDS10G1A/315P255
R901194874 DBDS10G1A/315P260
R901142133 DBDS10G1A/315P280
R901439772 DBDS10G1A/315P290
R900938747 DBDS10G1A/315P300
R900424743 DBDS10G1A/315V
R900340488 DBDS10G1A/315V/12
R901124724 DBDS10G1A/315V/12E
R900489852 DBDS10G1A/315VB
R901341414 DBDS10G1A/315VE
R900572904 DBDS10G1A/320B
R901143312 DBDS10G1A/320E
R900572905 DBDS10G1A/330B
R900769509 DBDS10G1A/330E
R900708266 DBDS10G1A/330VB
R900769616 DBDS10G1A/330VE
R900572906 DBDS10G1A/340B
R901004628 DBDS10G1A/340E
R901142782 DBDS10G1A/345E
R900572907 DBDS10G1A/350B
R901010969 DBDS10G1A/350E
R901403960 DBDS10G1A/350VE
R900572290 DBDS10G1A/35B
R901004635 DBDS10G1A/360E
R900776416 DBDS10G1A/370E
R900572908 DBDS10G1A/375B
R901419086 DBDS10G1A/375E
R900424744 DBDS10G1A/400
R900340395 DBDS10G1A/400SO32
R900337132 DBDS10G1A/400W1
R901421159 DBDS10G1A/400-320
R900967544 DBDS10G1A/400-330
R901283265 DBDS10G1A/400-350
R900934571 DBDS10G1A/400-350V
R900558953 DBDS10G1A/400-370
R901243540 DBDS10G1A/400-400
R900342738 DBDS10G1A/400/12
R900482135 DBDS10G1A/400/12SO150
R900535540 DBDS10G1A/400/2
R900471909 DBDS10G1A/400/5
R900343484 DBDS10G1A/400/V/5
R900424799 DBDS10G1A/400B
R900426187 DBDS10G1A/400B
R900787687 DBDS10G1A/400E
R900381337 DBDS10G1A/400J
R900374117 DBDS10G1A/400JSO73
R901052290 DBDS10G1A/400J=TE
R901147801 DBDS10G1A/400P140
R901348424 DBDS10G1A/400P350V
R901055558 DBDS10G1A/400P370
R901356605 DBDS10G1A/400P400
R900437349 DBDS10G1A/400V
R900395060 DBDS10G1A/400V/12
R900466113 DBDS10G1A/400VB
R901260710 DBDS10G1A/400VE
R900904087 DBDS10G1A/40B
R901015106 DBDS10G1A/40E
R901114853 DBDS10G1A/40VE
R900572966 DBDS10G1A/420B
R900773646 DBDS10G1A/420E
R900915769 DBDS10G1A/420VB
R900979785 DBDS10G1A/440B
R901018676 DBDS10G1A/440E
R900572967 DBDS10G1A/450B
R900574646 DBDS10G1A/485B
R900424745 DBDS10G1A/50
R900343409 DBDS10G1A/50SO130
R900497023 DBDS10G1A/50SO31
R900337135 DBDS10G1A/50SO32
R900401662 DBDS10G1A/50SO50
R900366553 DBDS10G1A/50SO74
R900443130 DBDS10G1A/50W1
R900389365 DBDS10G1A/50W40
R900971932 DBDS10G1A/50-15
R901004502 DBDS10G1A/50-35
R900347687 DBDS10G1A/50/12
R900443393 DBDS10G1A/50/2
R900465670 DBDS10G1A/50/5
R900402960 DBDS10G1A/50/V/5
R900572968 DBDS10G1A/500B
R900520689 DBDS10G1A/500BSO999
R900769561 DBDS10G1A/500E
R900572291 DBDS10G1A/50B
R900423742 DBDS10G1A/50B
R900346412 DBDS10G1A/50B
R901055217 DBDS10G1A/50E
R900485835 DBDS10G1A/50J
R901052297 DBDS10G1A/50J=TE
R900560484 DBDS10G1A/50MT
R900424146 DBDS10G1A/50V
R900358827 DBDS10G1A/50V/12
R901131882 DBDS10G1A/50VE
R900618054 DBDS10G1A/520B
R900779659 DBDS10G1A/520E
R900578531 DBDS10G1A/550B
R901000910 DBDS10G1A/550E
R900572292 DBDS10G1A/55B
R901233052 DBDS10G1A/55E
R900572969 DBDS10G1A/600B
R901167592 DBDS10G1A/600E
R900428380 DBDS10G1A/60B
R901040333 DBDS10G1A/60E
R900442462 DBDS10G1A/60VB
R901182277 DBDS10G1A/60VE
R900423814 DBDS10G1A/630
液压阀的分类:
1根据结构形式分类
滑阀：滑阀为间隙密封，阀芯与阀口存在一定的密封长度，因此滑阀运动存在一个死区。
锥阀：锥阀阀芯半锥角一 般为12°-20°，阀口关闭时为线密封，密封性能好且动作灵敏。
球阀：性能与锥阀相同
2.根据控制制方式不同分:
定值或开关控制阀:被控制量为定值的阀类，包括普通控制阀、插装阀、叠加阀。
比例控制阀:被控制量与输入信号成比例连续变化的阀类，包括普通比例阀和带内反馈的电液比例阀。
伺服控制阀:被控制量与(输出与输入之间的)偏差信号成比例连续变化的阀类，包括机液伺服阀和电液伺服阀。.
数字控制阀:用数字信息直接控制阀口的启闭，来控制液流的压力、流
量、方向的阀类。
3.根据用途分:
压力控制阀、流量控制阀、方向控制阀
方向控制阀的作用:在液压系统中控制液流方向。
方向控制阀包括:单向阀和换向阀
单向阀包括:普通单向阀和液控单向阀
1.普通单向阀
使油液只能沿一个方向流动，反向则被截止的方向阀。
普通单向阀的应用
常被安装在泵的出口，一方面防止压力冲击影响泵的正常工作，另一方面防止泵不工作时系统油液倒流经泵回油箱。
被用来分隔油路以防止高低压干扰。:
与其他的阀组成单向节流阀、单向减压阀、单向顺序阀等复合阀。
安装在执行元件的回油路上，使回油具有一定背压。作背压阀的单向阀应更换刚度较大的弹簧，其正向开启压力为( 0. 3~0.5) MPa。
2.液控单向阀
外泄式液控单向阀，内泄式单向阀
工作原理:当控制油口不通压力油时，油液只能从pi→P:当控制油口通压力油时，正、反向的油液均可自由通过。
3.换向阀
换向阀是利用阀芯在阀体孔内作相对运动，使油路接通或切断而改变油流方向的阀。
换向阀的分类
按结构形式可分:滑阀式、转阀式、球阀式。
按阀体连通的主油路数可分:两通、三通、四通...等。
按阀芯在阀体内的工作位置可分:两位、三位、四位等。
按操作阀芯运动的方式可分:手动、机动、电磁动、液动、电液动等。
换向阀的中位机能，多位阀在不同工作位置时，各油口的连通方式体现了换向阀的不同的控制机能，称之为换向阀的机能。对于三位阀，左、右位实现执行元件的换向，中位则能满足执行元件处于非工作状态时系统的不同要求。

4.压力控制阀
压力控制阀的作用:
1、用来控制液压系统中油液压力;
1)溢流阀：直动式溢流阀、先导式溢流阀
2)减压阀
2、以压力为控制信号实现油路通断。
3)顺序阀
4)压力继电器
共同工作原理:利用作用于阀心上的液压力与弹簧力相平衡的原理进行工作。
溢流阀应用实例
(1)为定量泵系统溢流稳压和定量泵、节流阀并联，阀口常开。
(2)变量泵系统提供过载保护
和变量泵组合，正常工作时阀口关闭，过载时打开，起安全保护作用,故又称安全阀。
(3)实现远程调压  p远程< p主调
(4)系统卸荷和多级调压 和二位二通阀组合(先导式)
(5)形成背压
减压阀用于降低并稳定系统中某一支路的油液压力，常用于夹紧、控制等油路中。
顺序阀是一种利用压力控制阀口通断的压力阀，因用于控制多个执行元件的动作顺序而得名。按控制油来源不同分内控和外控，按弹簧腔泄漏油引出方式不同分内泄和外泄。
压力继电器功用:根据系统压力变化,自动接通或断开电路,实现程序控制或安全保护。
工作原理: pk> pT时，柱塞上升,发出信号pk< pT时，柱塞下降,断开信号。

5.流量控制阀
功用:通过改变阀口过流面积来调节输出流量，从而控制执行元件的运动速度。
分类:节流阀、调速阀、温度补偿调速阀、分流集流阀。
常用节流口结构有锥形、三角槽形、矩形、三角形等。由节流方程知，当压力差.定时，改变开口面积即改变液阻就可改变流量。
节流阀实质相当于-一个可变节流口，借助控制机构使阀芯相对于阀体孔运动改变阀口的过流面积。
结构原理
主要零件有阀芯、阀体和螺母。阀体上右边是进油口，左边是出油口。阀芯一端开有三角尖槽，另-端加工有螺纹，旋转阀芯即可轴向移动改变阀口过流面积。为平衡液压径向力，三角槽须对称布置。
调速阀定差减压阀与节流阀串联而成，用来调节通过的流量自动补
偿负载变化的影响。
插装阀
上世纪70年代初发展起来的一种新元件，是古老锥阀的新应用。配以盖板、先导阀组成的-种多功能的复合阀。因每个插装阀基本组件有且只有两个油口，故被称为二通插装阀。
特点:
阀芯为锥阀，密封性能好，且动作灵敏;
通流能力大，抗污染;
一阀多用，易组成各式系统，结构紧凑。
特别对大流量及非矿物油介质的场合，优点更为突出。
插装阀基本组件由阀芯、阀套、弹簀和密封圈组成。根据用途不同分为方向阀组件、压力阀组件和流量阀组件。
插装阀的应用
单向阀
将方向阀组件的控制口通过阀块和盖板上的通道与油口A或B直接沟通，可组成单向阀。
二通阀
由一个二位三通电磁滑阀控制方向阀组件控制腔的通油方式，可组成二位二通阀。
三通阀
由两个方向阀组件并联而成，对外形成-一个压力油口、-一个工作油口和一一个回油口。三通插装阀的工作状态数取决于先导换向阀的工作位置数。
四通阀由两个三通阀并联而成。
叠加阀以板式阀为基础，每个叠加阀不仅起到单个阀的功能，而且还沟通阀与阀的流道。换向阀安装在*上方，对外连接油口开在*下边的底板上，其他的阀通过螺栓连接在换向阀和底板之间。
由叠加阀组成的系统结构紧凑，配置灵活，设计制造周期短。