北京华德比例阀4WE6A61B/CG12NDL 4WE6A61B/CW220-50NDL

当电磁铁未通电时，阀芯（3）被复位弹簧（4）保持在中位或起始位置（脉冲式除外）。阀芯（3）的动作由湿式电磁铁（2）实现当电磁铁（2）通电时，电磁铁的力经推杆（5）作用在阀芯（3）上，将其由静止位置推到所需的工作位置。使油液由P到A和B到T或由P到B和A到T通。当电磁铁断电时，阀芯（3）被复位弹簧（4）推回到原始位置，此时可以推动手动按钮（6）使阀芯运动.

华德液压阀部分型号：

  SL30PA1-30B/ SL30PA2-30B/ SL30PA3-30B/ SL30PA4-30B/

  SL30PB1-30B/ SL30PB2-30B/ SL30PB3-30B/ SL30PB4-30B/

  4WE10F20B/OFAG24N 4WE10F20B/OFAW220-50N 4WE10G20B/OFAG24N 4WE10G20B/OFAW220-50N

  4WE10H20B/OFAG24N 4WE10H20B/OFAW220-50N 4WE10J20B/OFAG24N 4WE10J20B/OFAW220-50N

  DBW20A-3-30B/100YW220-50NZ4 DBW20A-3-30B/100YW220-50NZ5

  DBW20A-3-30B/100YW220-50NZ5L

  DV25-1-10B/ DV25-2-10B/ DV25-3-10B/

  DV30-1-10B/ DV30-2-10B/ DV30-3-10B/

  DV40-1-10B/ DV40-2-10B/ DV40-3-10B/

  MG6G1.2B/ MG8G1.2B/ MG10G1.2B/ MG15G1.2B/ MG20G1.2B/

  MG25G1.2B/ MG30G1.2B/

  FD25KA12B/B00 FD25KA12B/B40 FD25KB12B/B00 FD25KB12B/B40

  FD25PA12B/B00 FD25PA12B/B40 FD25PB12B/B00 FD25PB12B/B40

  FD25FA12B/B00 FD25FA12B/B40 FD25FB12B/B00 FD25FB12B/B40

  DBW10B-2-50B/315XY6CW220-50N9Z4 DBW10B-2-50B/315XY6CW220-50N9Z5

  DBW10B-2-50B/315XY6CW220-50N9Z5L

  FD32KA11B/B00 FD32KA11B/B60 FD32KB11B/B00 FD32KB11B/B60

  FD32PA11B/B00 FD32PA11B/B60 FD32PB11B/B00 FD32PB11B/B60

  FD32FA11B/B00 FD32FA11B/B60 FD32FB11B/B00 FD32FB11B/B60

  华德液压阀部分型号：

  4WE6A61B/CG24NK4 4WE6A61B/CG12NK4 4WE6A61B/CW220-50NK4

  4WE6A61B/CG24N9DL 4WE6A61B/CG12N9DL 4WE6A61B/CW220-50N9DL

  4WE6A61B/CG24NDL 4WE6A61B/CG12NDL 4WE6A61B/CW220-50NDL

  4WE6A61B/CG24N9DKL 4WE6A61B/CG12N9DKL 4WE6A61B/CW220-50N9DKL