威格士顺序阀DT8P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。顺序阀根据装配结构的不同，可以实现不同的回路功能，如溢流阀、顺序阀和平衡阀的功能。
顺序阀的启闭特性如果太差，则流量较大时一次压力过高，回路效率降低。启闭特性带有滞环，开启压力低于闭合压力，
负载流量变化时应予注意。开启压力过低的阀，再压力低于设定压力时发生前漏，引起执行器误动作。
通过阀的流量远小于额定流量时，产生振动或其他不稳定现象。此时要再回路上采取措施。
DGX-06-1B-60
DGX-06-1B-60-S19
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FC10-21A
FCG
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