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DR10-5-5X/100YM先导式减压阀 德国博世力士乐REXROTH减压阀 压力控制阀

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DR10-5-5X/100YM先导式减压阀

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

减压阀可将阀前管路较高的液体压力减少至阀后管路所需的水平。这里的传输介质主要是水。减压阀广泛用于高层建筑、城市给水管网水压过高的区域、矿井及其他场合，以保证给水系统中各用水点获得适当的服务水压和流量。鉴于水的漏失率和浪费程度几乎同给水系统的水压大小成正比，因此减压阀具有改善系统运行工况和潜在节水作用，据统计其节水效果约为30%。

作用原理：减压阀的是靠阀内流道对水流的局部阻力降低水压，水压降的范围由连接阀瓣的薄膜或活塞两侧的进出口水压差自动调节。定比减压原理是利用阀体中浮动活塞的水压比控制，进出口端减压比与进出口侧活塞面积比成反比。这种减压阀工作平稳无振动；阀体内无弹簧，故无弹簧锈蚀、金属疲劳失效之虑；密封性能良好不渗漏，因而既减动压（水流动时）又减静压（流量为0时）；特别是在减压的同时不影响水流量。

DR10-5-5X/100YM先导式减压阀

DR 型压力阀是由二次回路控制的先导式减压阀。

减压阀基本上由带主阀芯插件 (3) 的主阀 (1) 和带调节型的先导控制阀 (2) 组成。

在静止位置，阀门打开。液压油从通道 B 通过主阀芯插件 (3) 无限制地流入通道 A。施加到通道 A 的压力作用于下主阀芯侧。同时，压力通过喷嘴 (4) 施加到主阀芯 (3) 的弹簧加载侧，并通过通道 (5) 施加到先导控制阀 (2) 中的球 (6)。它还通过喷嘴 (7)、控制管路 (8)、止回阀 (9) 和喷嘴 (10) 作用于球 (6)。根据弹簧 (11) 的设置，压力会在球 (6) 前面、通道 (5) 和弹簧腔 (12) 中积聚，从而将控制阀芯 (13) 保持在打开位置。通道 B 中的液压流体可以通过主阀芯插件 (3) 不受限制地流向通道 A，直到通道 A 中的压力升高，超过弹簧 (11) 上设置的值并打开球 (6)。控制阀芯 (13) 向关闭方向移动。

当通道 A 中的压力与弹簧 (11) 上设定的压力之间处于平衡状态时，就会实现所需的减压。

先导油从弹簧腔 (14) 返回总是通过控制管路 (15) 从外部进入油箱。

对于从通道 A 到通道 B 的自由回流，可选择安装止回阀 (16)。

压力表连接 (17) 允许控制通道 A 中的减压。

类型 DR..-4-5X/...Y...

DR10-5-5X/100YM先导式减压阀型号

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R900595130 DR30G5-5X/200YM

R900552906 DR30G5-5X/200YM/12

R900513180 DR30G5-5X/200YMV

R900563833 DR30G5-5X/200YMV/12

R901026879 DR30G5-5X/315-200YM

R900777095 DR30G5-5X/315-205YM

R900598827 DR30G5-5X/315YM

R900979325 DR30G5-5X/315YM/12

R900597299 DR30G5-5X/315YMJ

R900521566 DR30G5-5X/315YMMK/12

R900563901 DR30G5-5X/315YMV

R900535434 DR30G5-5X/315YMV/12

R901240099 DR30G5-5X/350YM

R900960317 DR30G5-5X/350YM/12

R900503382 DR30G5-5X/50YM

R900927917 DR30G5-5X/50YM/12

R900518575 DR30G5-5X/50YMV

R900950678 DR30G5-5X/50YMV/12

R900529674 DR30G6-5X/100YM

R900533036 DR30G6-5X/200YM

R900596495 DR30G6-5X/315YM

R900500776 DR30G6-5X/50YM

R900901094 DR30G7-5X/200YM

R900596963 DR30-.-5X/...Y

R900509178 DR30-.-5X/...YM

R900501430 DR30-0-5X/...YSO16

R900599113 DR30-4-5X/100Y

R900599112 DR30-4-5X/100YM

R900562612 DR30-4-5X/100YMV/12

R900505886 DR30-4-5X/100YV

R900931769 DR30-4-5X/200-120Y

R901260435 DR30-4-5X/200-160YM

R900508498 DR30-4-5X/200Y

R901003349 DR30-4-5X/200Y/12

R900513985 DR30-4-5X/200YM

R900533803 DR30-4-5X/200YM/12

R900928452 DR30-4-5X/200YMV

R901225455 DR30-4-5X/200YV

R900596961 DR30-4-5X/315Y

R900900568 DR30-4-5X/315Y/12

R900500853 DR30-4-5X/315YM

R900721605 DR30-4-5X/315YM/12

R900552601 DR30-4-5X/315YMK/12

R900951565 DR30-4-5X/315YMV

R900562490 DR30-4-5X/315YV

R900770293 DR30-4-5X/350YM

R900902977 DR30-4-5X/50Y

R901144891 DR30-4-5X/50YM

R900505866 DR30-4-5X/50YMV

R900517977 DR30-4-5X/50YV

R901363484 DR30-4-5X=100Y

R901363483 DR30-4-5X=100YM

R900920445 DR30-5-5X/100-080YMV

R900596339 DR30-5-5X/100Y

R900922541 DR30-5-5X/100Y/12

R900597260 DR30-5-5X/100YM

R900547952 DR30-5-5X/100YM/12

R900597086 DR30-5-5X/100YMV

R900596687 DR30-5-5X/100YV

R900563023 DR30-5-5X/100YV/12

R901167554 DR30-5-5X/200-100YM

R901201341 DR30-5-5X/200-100YMV

R901035294 DR30-5-5X/200-150Y

R901429004 DR30-5-5X/200P160Y

R900596500 DR30-5-5X/200Y

R900516120 DR30-5-5X/200YSO96

R900578916 DR30-5-5X/200Y/12

R900597158 DR30-5-5X/200YM

R900550275 DR30-5-5X/200YM/12

R900514647 DR30-5-5X/200YMV

R900937293 DR30-5-5X/200YMV/12

R900513720 DR30-5-5X/200YV

R900940657 DR30-5-5X/200YV/12

R901264572 DR30-5-5X/315-250YM

R901077257 DR30-5-5X/315P200YM

R900596928 DR30-5-5X/315Y

R900578614 DR30-5-5X/315Y/12

R900500837 DR30-5-5X/315YJ

R900596814 DR30-5-5X/315YM

R900921125 DR30-5-5X/315YM/12

R900728829 DR30-5-5X/315YMJ

R900505753 DR30-5-5X/315YMK

R900598578 DR30-5-5X/315YMV

R900961808 DR30-5-5X/315YMV/12

R900597312 DR30-5-5X/315YV

R900533722 DR30-5-5X/315YV/12

R900506979 DR30-5-5X/350YM

R901115967 DR30-5-5X/350YM/12

R900712932 DR30-5-5X/350YMV

R901284127 DR30-5-5X/50P30Y

R900503381 DR30-5-5X/50Y

R978865405 DR30-5-5X/50Y/12

R900503303 DR30-5-5X/50YM

R900514450 DR30-5-5X/50YMV

R900568646 DR30-5-5X/50YV

R900596662 DR30-6-5X/100Y

R901035841 DR30-6-5X/100Y/12

R900596997 DR30-6-5X/100YM

R900510630 DR30-6-5X/100YV

R900500930 DR30-6-5X/200Y

R900529867 DR30-6-5X/200YM

R901200715 DR30-6-5X/200YV

R900596660 DR30-6-5X/315Y

R900956765 DR30-6-5X/315Y/12

R900597613 DR30-6-5X/315YM

R900549072 DR30-6-5X/315YMV

R900977041 DR30-6-5X/315YV

R901171321 DR30-6-5X/350YM

R900900243 DR30-6-5X/50Y

R900511727 DR30-6-5X/50YM

R900571409 DR30-7-5X/100Y

R901060661 DR30-7-5X/100YMV

R900548523 DR30-7-5X/200Y

R900577986 DR30-7-5X/200YM

R900968975 DR30-7-5X/315YM

R900729775 DR30-7-5X/350YM

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。