力士乐溢流阀ZDB10VA1-4X/200V

力士乐溢流阀ZDB10VA1-4X/200V 德国博世力士乐REXROTH溢流阀 电磁溢流阀 原装现货

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力士乐溢流阀ZDB10VA1-4X/200V

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。

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较大值，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。

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单独的压力先导阀，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。

力士乐溢流阀ZDB10VA1-4X/200V

ZDB和Z2DB型压力阀是采用夹心板设计的先导式溢流阀。它们用于限制系统压力。这些阀主要由壳体（7）和一个或两个压力阀芯组成。可以通过调节类型（4）设置系统压力。

在初始位置，阀门关闭。通道A中的压力作用在阀芯（1）上。同时，压力通过喷嘴（2）施加到阀芯（1）的弹簧加载侧，并通过喷嘴（3）施加到先导阀芯（6）。

如果通道A中的压力超过在弹簧（5）上设定的值，则先导提升阀（6）打开。液压油从阀芯（1），喷嘴（3）和通道（8）的弹簧加载侧流入通道T（TA）。由此产生的压降使阀芯（1）移动，并打开了从A到T（TA）的连接。在通道A中，设定在弹簧（5）上的压力稳定下来。

ZDB 10 VA2-4X /…V型

力士乐溢流阀ZDB10VA1-4X/200V型号

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力士乐REXROTH先导式溢流阀DB.K

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R900902170 DB6K2-4X/50P45YV

R900425998 DB6K2-4X/50Y

R900533126 DB6K2-4X/50YMIL15

R900580077 DB6K2-4X/50YJ5V

R900487903 DB6K2-4X/50YV

R901135787 DB6K2-4X/80YV

R900426666 DB6K3-4X/100Y

R900427679 DB6K3-4X/100YV

R901135789 DB6K3-4X/160YV

R901031341 DB6K3-4X/200-120YV

R900424552 DB6K3-4X/200Y

R900407575 DB6K3-4X/200YV

R900425690 DB6K3-4X/315Y

R900432722 DB6K3-4X/315YV

R900424554 DB6K3-4X/50Y

R900438027 DB6K3-4X/50YV

R900432716 DB6K3-4X/50YV

R901135786 DB6K3-4X/80YV

R900443023 DB6K7-4X/100Y

R900501350 DB6K7-4X/100YV

R900594156 DB6K7-4X/200Y

R900599336 DB6K7-4X/200YV

R900507746 DB6K7-4X/315Y

R900597402 DB6K7-4X/315YV

R900517816 DB6K7-4X/350YV

R901031315 DB6K7-4X/50Y

R900438028 DB6K7-4X/50YV

R910946662 PRESSRELIEFVALVE DB10K2-4X/50YVR&

R910925828 PRESSRELIEFVALVE DB10K2-4X/100YVR&

R902400972 PRESSRELIEFVALVE DB10K2-4X/200YVR&

力士乐先导式溢流阀DB(C/T)

安全阀一般按结构形式分为弹簧式安全阀和杠杆式安全阀、脉冲式安全阀，其中弹簧式安全阀应用为普遍;按连接方式分为螺纹安全阀和法兰安全阀。安全阀口径一般都不大，常用的都在DN15mm-DN80mm之间，超过150mm一般都称为大口径安全阀