DB20-2-5X/50 REXROTH溢流阀

DB20-2-5X/50 REXROTH溢流阀 德国博世力士乐REXROTH 溢流阀 电磁溢流阀 原装现货

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DB20-2-5X/50 REXROTH溢流阀

DB 型阀是先导控制式的溢流阀； DBW 型阀是先导控制式的电磁溢阀。 DB

型阀是用来控制液压系统的压力； DBW 型阀也可以控制液压系统的压力， 并且

能在任意时刻使系统卸荷。

DB 型阀主要是由先导阀和主阀组成。 DBW 型阀是由电磁换向阀、 先导阀和

主阀组成。

DB 型溢流阀：

A 腔的压力油作用在主阀芯下端的同时，

通过阻尼器 、  和通道 、  、

 作用在主阀芯上端和先导阀 的锥 阀

上。 当系统压力超过弹簧 的调定值时， 锥阀

 被打开。 同时主阀芯上端的压力油通过阻尼

器 、 通道 、 弹簧腔 及通道

流回 B 腔（控制油内排型） 或通过外排口

流回油箱（控制油外排型） 。 这样， 当压力油通过阻尼器 、  时在主阀

芯 上产生了一个压力差， 主阀芯在这个压差的作用下打开， 这样在调定的

工作压力下压力油从 A 腔流到 B 腔（即卸荷） 。

 

先导型溢流阀发出的机械噪声，一般来自零件的撞击和由于加工误差等产生的零件磨擦。在先导型溢流阀发出的噪声中，有时会农业生产体系械性的高频振动声，一般称它为自激振动声。这是主阀和导阀因高频振动而发生的声音。它的发生率与回油管道的配置、流量、压力、油温(粘度)等因素有关。-般情况下，管道口径小、流量少、压力高、油液粘度低，自激振动发生率就高。

减小或消除先导型溢流阀噪声和振动的措施，一般是在导阀部分加置消振元件。

消振套一般固定在导阀前腔，即共振腔内，不能自由活动。在消振套上都设有各种阻尼孔，以增加阻尼来消除震动。另外，由于共振腔中增加了零件，使共振腔的容积减小，油液在负压时刚度增加，根据刚度大的元件不易发生共振的原理，就能减少发生共振的可能性。

溢流阀型号

R900589433 DB20-2-5X/100

R900929462 DB20-2-5X/100-70

R900500869 DB20-2-5X/100/12

R900911337 DB20-2-5X/100/50

R900558857 DB20-2-5X/100=LB

R900597548 DB20-2-5X/100B

R901005482 DB20-2-5X/100D

R900772972 DB20-2-5X/100E

R900931888 DB20-2-5X/100J3

R900514811 DB20-2-5X/100U

R900514119 DB20-2-5X/100U/12

R900516200 DB20-2-5X/100UV

R900599840 DB20-2-5X/100V

R901005062 DB20-2-5X/100V/12

R900513873 DB20-2-5X/100VB

R901216609 DB20-2-5X/100VD

R900596693 DB20-2-5X/100X

R900745717 DB20-2-5X/100X/12

R900564157 DB20-2-5X/100XU

R900520388 DB20-2-5X/100XUV

R900905381 DB20-2-5X/100XV

R900501114 DB20-2-5X/100XY

R900597293 DB20-2-5X/100XYU

R900597421 DB20-2-5X/100Y

R900921114 DB20-2-5X/100Y/12

R900507799 DB20-2-5X/100YB

R901004229 DB20-2-5X/100YD

R900506585 DB20-2-5X/100YU

R978911970 DB20-2-5X/100YU/12

R900513186 DB20-2-5X/100YUV

R900556114 DB20-2-5X/100YV

R900763215 DB20-2-5X/115B

R901024064 DB20-2-5X/115E

R900546385 DB20-2-5X/120B

R900773205 DB20-2-5X/120E

R900782413 DB20-2-5X/120UE

R900546386 DB20-2-5X/125B

R901169731 DB20-2-5X/125E

R900546387 DB20-2-5X/140B

R900772971 DB20-2-5X/140E

R901405913 DB20-2-5X/140VE

R901003896 DB20-2-5X/140YE

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R900546388 DB20-2-5X/150B

R900778950 DB20-2-5X/150E

R900546389 DB20-2-5X/150YB

R901004652 DB20-2-5X/150YE

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R900546390 DB20-2-5X/160B

R900780684 DB20-2-5X/160E

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R900931522 DB20-2-5X/160XB

R900730923 DB20-2-5X/160YB

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R900919800 DB20-2-5X/165B

R900769567 DB20-2-5X/165E

R900546391 DB20-2-5X/170B

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R900590768 DB20-2-5X/200

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R900908035 DB20-2-5X/200-160

R900737382 DB20-2-5X/200-180

R900535931 DB20-2-5X/200/12

R900558858 DB20-2-5X/200=LB

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R901003073 DB20-2-5X/200D

R901003073 DB20-2-5X/200D

R900769587 DB20-2-5X/200E

R900704830 DB20-2-5X/200P175V

R900519775 DB20-2-5X/200U

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R901231581 DB20-2-5X/200VD

R900595893 DB20-2-5X/200X

R900561259 DB20-2-5X/200X/12

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R900247762 DB20-2-5X/200YV/12

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R900546399 DB20-2-5X/210B

R900769388 DB20-2-5X/210E

R900932814 DB20-2-5X/210UB

R900546400 DB20-2-5X/210VB

R901231534 DB20-2-5X/210VE

R900546401 DB20-2-5X/210YB

R900787150 DB20-2-5X/210YE

R900546402 DB20-2-5X/215B

R901406175 DB20-2-5X/215E

R901376372 DB20-2-5X/215YE

R900546403 DB20-2-5X/220B

R901033277 DB20-2-5X/220E

R900546404 DB20-2-5X/220YB

R901442854 DB20-2-5X/220YE

R901371657 DB20-2-5X/225E

R901344600 DB20-2-5X/225YE

R900546405 DB20-2-5X/230B

R901018389 DB20-2-5X/230E

R901004439 DB20-2-5X/230YE

R901350460 DB20-2-5X/235VE

R900546406 DB20-2-5X/240B

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R900769361 DB20-2-5X/250E

R900553539 DB20-2-5X/250YB

R901000240 DB20-2-5X/250YE

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R901411773 DB20-2-5X/30YE

R900593530 DB20-2-5X/315

R900249517 DB20-2-5X/315-120

R901024217 DB20-2-5X/315-160

R901049976 DB20-2-5X/315-200

R900953489 DB20-2-5X/315-205

R901275080 DB20-2-5X/315-230

R900785287 DB20-2-5X/315-235

R900931897 DB20-2-5X/315-240

R900927288 DB20-2-5X/315-245

R901024381 DB20-2-5X/315-250U

R901024382 DB20-2-5X/315-300U

R900511690 DB20-2-5X/315/12

R900596569 DB20-2-5X/315B

R900769501 DB20-2-5X/315E

R900931889 DB20-2-5X/315J3

R901427793 DB20-2-5X/315P210Y

R900906696 DB20-2-5X/315P220

R901428813 DB20-2-5X/315P230Y

R901027462 DB20-2-5X/315P280

R901077615 DB20-2-5X/315P315

R900589371 DB20-2-5X/315U

R900538787 DB20-2-5X/315UV

R900569123 DB20-2-5X/315UV/12

R900591404 DB20-2-5X/315V

R900513518 DB20-2-5X/315V/12

R900516390 DB20-2-5X/315VB

R901140505 DB20-2-5X/315VE

R900587347 DB20-2-5X/315X

R900562709 DB20-2-5X/315X/12

R900520503 DB20-2-5X/315XB

R900501816 DB20-2-5X/315XU

R900709198 DB20-2-5X/315XU/12

R900708116 DB20-2-5X/315XU/5

R901114852 DB20-2-5X/315XUJ

R900512789 DB20-2-5X/315XUV

R900500559 DB20-2-5X/315XV

R900596768 DB20-2-5X/315XY

R900514282 DB20-2-5X/315XY/12

R900599670 DB20-2-5X/315XYU

R900505282 DB20-2-5X/315XYV

R900594511 DB20-2-5X/315Y

R900566861 DB20-2-5X/315Y/12

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R900785298 DB20-2-5X/315YE

R900513505 DB20-2-5X/315YU

R901045971 DB20-2-5X/315YUV

R901298442 DB20-2-5X/315YUV/12

R900501279 DB20-2-5X/315YV

R900546410 DB20-2-5X/320B

R901069108 DB20-2-5X/320E

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R900546412 DB20-2-5X/330B

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R900923960 DB20-2-5X/330YB

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R900747143 DB20-2-5X/345B

R901280473 DB20-2-5X/345E

R900590618 DB20-2-5X/350

R900750758 DB20-2-5X/350-185

R901008767 DB20-2-5X/350-205

R901053007 DB20-2-5X/350-235

R901040597 DB20-2-5X/350-260

R901016417 DB20-2-5X/350-270

R901227043 DB20-2-5X/350-320

R900917470 DB20-2-5X/350-320X

R900535932 DB20-2-5X/350/12

R900571696 DB20-2-5X/350B

R901003070 DB20-2-5X/350D

R900773211 DB20-2-5X/350E

R900515208 DB20-2-5X/350J3

R901340445 DB20-2-5X/350P240/12

R901425665 DB20-2-5X/350P320X

R901055589 DB20-2-5X/350P330

R901093523 DB20-2-5X/350P350

R900509038 DB20-2-5X/350V

R901216658 DB20-2-5X/350VD

R901341712 DB20-2-5X/350VE

R900516184 DB20-2-5X/350X

R900571771 DB20-2-5X/350X/12

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R900787950 DB20-2-5X/350YD

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R900947300 DB20-2-5X/350YV

R901102958 DB20-2-5X/350YVD

R901235177 DB20-2-5X/35E

R901157893 DB20-2-5X/35YVE

R901296412 DB20-2-5X/40E

R900546371 DB20-2-5X/40YB

R901295782 DB20-2-5X/45E

R900597212 DB20-2-5X/50

R900577524 DB20-2-5X/50-20

R901312624 DB20-2-5X/50-30U

R900508047 DB20-2-5X/50/12

R900546372 DB20-2-5X/50B

R901235178 DB20-2-5X/50D

R901017434 DB20-2-5X/50E

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R900919550 DB20-2-5X/50P20

R900523523 DB20-2-5X/50U

R978898276 DB20-2-5X/50U/12

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R900595 DB20-2-5X/50XY

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R900500319 DB20-3-5X/100

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R900512814 DB20-3-5X/315U

R900956764 DB20-3-5X/315U/12

R900712979 DB20-3-5X/315UV

R900500291 DB20-3-5X/315V

R900597155 DB20-3-5X/315X

R900527614 DB20-3-5X/315XU

R978875122 DB20-3-5X/315XU/12

R900616954 DB20-3-5X/315XY

R900515046 DB20-3-5X/315XYU

R900597594 DB20-3-5X/315Y

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R900505248 DB20-3-5X/350

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R900524784 DB20-6-5X/100

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R900539745 DB20-7-5X/315XU

R900757533 DB20-7-5X/350

R901043740 DB20-7-5X/50

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R900920356 DB20-7-5X/50X

R901219147 DB20-7-5X/50XV

R900503185 DB25G.-5X/...

R900465515 DB25G1-3X/315X/5

R900533967 DB25G1-5X/100

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R901127359 DB25G1-5X/100XUV

R900539028 DB25G1-5X/200

R900511568 DB25G1-5X/200/12

R901127357 DB25G1-5X/200XUV

R900598377 DB25G1-5X/315

R900565820 DB25G1-5X/315MK/12

R900513848 DB25G1-5X/315X

R901365901 DB25G1-5X/315XUV

R900512095 DB25G1-5X/315XY

R900979583 DB25G1-5X/350XY

R900927454 DB25G1-5X/350Y/12

R901315638 DB25G1-5X/50UV

R900448194 DB25G2-3X/315X/5

R900597587 DB25G2-5X/100

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R900514003 DB25G2-5X/200

R900536185 DB25G2-5X/200/12

R900920510 DB25G2-5X/200X

R900962001 DB25G2-5X/200Y

R900590552 DB25G2-5X/315

R900598148 DB25G2-5X/315/12

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电磁换向阀是液压控制系统和电气控制系统之转换元件。它由液压机械中的按钮开关、限位开关、行程开关、压力继电器等电气元件发出信号，使电磁铁通电吸合或断电释放，从而直接控制阀芯移位，来实现油流的沟通、切断和方向变换，来操纵各执行机构的动作。推动故障检查按钮可使滑阀阀芯手推移动。