FD12FB2X/200B00V FD12FB2X/200B00V 平衡阀

FD12FB2X/200B00V    FD12FB2X/200B00V

顺序阀的工作条件：
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。

 使用顺序时应注意以下问题：      
<1>顺序阀通常为外泄方式，故必须将泄油口接至油箱，且泄油路背压不能过高，以免影响顺序阀的正常工作；       
<2>应根据液压系统的具体要求选用顺序阀的控制方式，对于外控式顺序阀应提供适当的控制压力油， 以使阀可靠启、闭；      
<3>启闭特性太差的顺序阀，通过流量较大时会使一次压力过高，导致系统效率降低；       <4>所选用的顺序阀，开启压力不能过低，否则会因泄漏导致执行元件误动作；       
<5>顺序阀的通过流量不宜小于额定流量过多，否则将产生振动或其他不稳定现象。

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：刘 
  
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