ZDB/Z2DB型叠加式溢流阀：
1、叠加式连接；
2、四种压力级；
3、五种油道工作可供选择；
4、带一个或两个插装溢流阀。
5、四种压力调节形式：
  手柄
  带保护罩的内六角调节螺栓
  带刻度的有锁旋钮
  带刻度的旋钮

说明：
    ZDB/Z2DB型溢流阀是叠加式先导溢流阀，用于限制系统压力。有五种控制形式和四个压力等级，系统压力通过调节装置调节。
    该阀由阀体和一个或两个插装式先导溢流阀组成。
    静止时溢流阀呈关闭状态。A口的压力作用在阀芯上，与此同时压力通过节流孔作用在阀芯的弹簧加载侧。经过节流孔作用在先导阀上。苏州杰亦洋机电。当A口的压力增加直到超过弹簧调定的压力时，阀芯开启，压力油从阀芯的弹簧腔，再通过阻尼孔和通道流到T口。进而产生压降而推动阀芯开启，此时油口A和T连同。而弹簧设定压力保持不变。
    控制油从两个弹簧腔通过T口由外部回油箱。

        注意事项
1、液压系统用的介质必须过滤；过滤精度至少20μm。
2、液压系统用的油箱必须密封；并加空气过滤器。
3、华德产品出厂时不带底板。（如需用请订货）。
4、固定螺栓请按样本中列的参数选用。
5、与阀连接的表面粗糙度要求0.8R。
6、与阀连接的平面度要求0.01/100mm。
本公司专业代理华德方向阀，华德单向阀，华德溢流阀，华德换向阀，华德压力阀，华德流量阀，
华德插装阀，华德比例阀，华德柱塞泵，华德定量泵，华德变量泵，华德变量柱塞泵，华德双泵，华德变量双泵。

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