北京华德液压全系列 具体型号及报价请联系客服
北京华德换向阀部分型号如下：
4WE6E61B/CG12NZ44WE6V50B/AG24N
4WE6E61B/CG24N9DKL4WE6V50B/AW220-50N
4WE6E61B/CG24N9DL4WE6V50B/BG24N
4WE6E61B/CG24N9K44WE6V50B/BW220-50N
4WE6E61B/CG24N9Z44WE6V61B/CG12N9DKL
4WE6E61B/CG24N9Z5L4WE6V61B/CG12N9DL
4WE6E61B/CG24NDKL4WE6V61B/CG12N9Z5
4WE6E61B/CG24NDL4WE6V61B/CG12N9Z5L
4WE6E61B/CG24NK44WE6V61B/CG12NDKL
4WE6E61B/CG24NZ44WE6V61B/CG12NDL
4WE6E61B/CW220-50N9DKL4WE6V61B/CG12NK4
4WE6E61B/CW220-50N9DL4WE6V61B/CG12NZ5
4WE6E61B/CW220-50N9K44WE6V61B/CG12NZ5L
4WE6E61B/CW220-50N9Z44WE6V61B/CG24N9DKL
4WE6E61B/CW220-50N9Z5L4WE6V61B/CG24N9DL
4WE6E61B/CW220-50NDKL4WE6V61B/CG24N9Z5
4WE6E61B/CW220-50NDL4WE6V61B/CG24N9Z5L
4WE6E61B/CW220-50NK44WE6V61B/CG24NDKL
4WE6E61B/CW220-50NZ44WE6V61B/CG24NDL
4WE6F50B/AG24N 4WE6V61B/CG24NK4
4WE6F50B/AW220-50N4WE6V61B/CG24NZ5
4WE6F50B/BG24N 4WE6V61B/CG24NZ5L
北京华德液压全系列 具体型号及报价请联系客服
北京华德换向阀部分型号如下：
4WE6F50B/BW220-50N4WE6V61B/CW220-50N9DKL
4WE6F61B/CG12N9DKL4WE6V61B/CW220-50N9DL
4WE6F61B/CG12N9K44WE6V61B/CW220-50N9Z5
4WE6F61B/CG12N9Z44WE6V61B/CW220-50N9Z5L
4WE6F61B/CG12N9Z54WE6V61B/CW220-50NDKL
4WE6F61B/CG12N9Z5L4WE6V61B/CW220-50NDL
4WE6F61B/CG12NDKL4WE6V61B/CW220-50NK4
4WE6F61B/CG12NZ44WE6V61B/CW220-50NZ5
4WE6F61B/CG12NZ54WE6V61B/CW220-50NZ5L
4WE6F61B/CG12NZ5L4WE6W50B/AG24N
4WE6F61B/CG24N9DKL4WE6W50B/AW220-50N
4WE6F61B/CG24N9K44WE6W50B/BG24N
4WE6F61B/CG24N9Z44WE6W50B/BW220-50N
4WE6F61B/CG24N9Z54WE6W61B/CW220-50N9Z5L
4WE6F61B/CG24N9Z5L4WE6Y61B/CG12N9DKL
4WE6F61B/CG24NDKL4WE6Y61B/CG12N9DL
4WE6F61B/CG24NZ44WE6Y61B/CG12N9K4
4WE6F61B/CG24NZ54WE6Y61B/CG12N9Z5L
4WE6F61B/CG24NZ5L4WE6Y61B/CG12NDL
4WE6F61B/CW220-50N9DKL4WE6Y61B/CG12NK4
4WE6F61B/CW220-50N9K44WE6Y61B/CG12NZ4
4WE6F61B/CW220-50N9Z44WE6Y61B/CG24N9DKL
4WE6F61B/CW220-50N9Z54WE6Y61B/CG24N9DL
4WE6F61B/CW220-50N9Z5L4WE6Y61B/CG24N9K4
4WE6F61B/CW220-50NDKL4WE6Y61B/CG24N9Z5L
北京华德液压全系列 具体型号及报价请联系客服
北京华德换向阀部分型号如下：
4WE6F61B/CW220-50NZ44WE6Y61B/CG24NDL
4WE6F61B/CW220-50NZ54WE6Y61B/CG24NK4
4WE6F61B/CW220-50NZ5L4WE6Y61B/CG24NZ4
4WE6G50B/AG24N 4WE6Y61B/CW220-50N9DKL
4WE6G50B/AW220-50N4WE6Y61B/CW220-50N9DL
4WE6G50B/BG24N 4WE6Y61B/CW220-50N9K4
4WE6G50B/BW220-50N4WE6Y61B/CW220-50N9Z5L
4WE6G61B/CG12N9DKL4WE6Y61B/CW220-50NDL
4WE6G61B/CG12N9DL4WE6Y61B/CW220-50NK4
4WE6G61B/CG12N9Z54WE6Y61B/CW220-50NZ4
4WE6G61B/CG12N9Z5L4WEH10C20B/6AG24NETZ4
4WE6G61B/CG12NDKL4WEH10C20B/6AG24NETZ5
4WE6G61B/CG12NDL4WEH10C20B/6AG24NETZ5L
4WE6G61B/CG12NZ54WEH10C20B/6AG24NEZ4
4WE6G61B/CG12NZ5L4WEH10C20B/6AG24NEZ5
4WE6G61B/CG24N9DKL4WEH10C20B/6AG24NEZ5L
4WE6G61B/CG24N9DL4WEH10C20B/6AG24NTZ4
4WE6G61B/CG24N9Z54WEH10C20B/6AG24NTZ5
4WE6G61B/CG24N9Z5L4WEH10C20B/6AG24NTZ5L
4WE6G61B/CG24NDKL4WEH10C20B/6AG24NZ4
4WE6G61B/CG24NDL4WEH10C20B/6AG24NZ5
4WE6G61B/CG24NZ54WEH10C20B/6AG24NZ5L
4WE6G61B/CG24NZ5L4WEH10C20B/6AW220-50NETZ4
4WE6G61B/CW220-50N9DKL4WEH10C20B/6AW220-50NETZ5
4WE6G61B/CW220-50N9DL4WEH10C20B/6AW220-50NETZ5L
方向控制按用途分为单向阀和换向阀。单向阀：只允许流体在管道中单向接通，反向即切断。换向阀：改变不同管路间的通、断关系。根据阀芯在阀体中的工作位置数分两位、三位等；根据所控制的通道数分两通、三通、四通、五通等；根据阀芯驱动方式分手动，机动，电动，液动等。60年代后期，在上述几种液压控制阀的基础上又研制出电液比例控制阀。它的输出量（压力、流量）能随输入的电信号连续变化。电液比例控制阀按作用不同，相应地分为电液比例压力控制阀﹑电液比例流量控制阀和电液比例方向控制阀等。压力控制按用途分为溢流阀﹑减压阀和顺序阀。（1）溢流阀：能控制液压系统在达到调定压力时保持恒定状态。用於过载保护的溢流阀称为安全阀。当系统发生故障，压力升高到可能造成破坏的限定值时，阀口会打开而溢流，以保证系统的安全。（2）减压阀：能控制分支回路得到比主回路油压低的稳定压力。减压阀按它所控制的压力功能不同，又可分为定值减压阀（输出压力为恒定值）﹑定差减压阀（输入与输出压力差为定值）和定比减压阀（输入与输出压力间保持一定的比例）。（3）顺序阀：能使一个执行元件（如液压缸﹑液压马达等）动作以后，再按顺序使其他执行元件动作。