武汉盛美特机电设备有限公司
武汉力士乐顺序阀DZ20-3-5X/200XY现货
工作原理 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，这种阀使用较多功能应用：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:
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