WE电磁换向阀主要有阀体、控制阀芯、1~2个电磁铁和1~2根复位弹簧组成，
它是用电磁铁推动阀芯、从而变换液体流动方向来达到控制目的的，
在未通电状态下，控制阀芯同复位弹簧保持在中间或初始位置；
当电磁铁通电时，电磁铁的力经过推杆作用在控制阀芯上，
将其同中位推向所需位置，这就例油液从P至A，B至T，或P至B，A至T自由流动。
当电磁铁断电时，控制阀芯被复位弹簧推向初始位置。
为了获得满意的操作，务必使用电磁铁的压力腔充满油液。
电磁换向阀可直接用在液压系统中，控制油路的通、断和切换；

也可作先导阀，用来操作其它阀等。

华德电磁阀部分型号：
4WE6F61B/CG24N9Z5L 4WE6F61B/CG12N9Z5L 4WE6F61B/CW220-50N9Z5L
4WE6G61B/CG24N9Z5L 4WE6G61B/CG12N9Z5L 4WE6G61B/CW220-50N9Z5L
4WE6P61B/CG24N9Z5L 4WE6P61B/CG12N9Z5L 4WE6P61B/CW220-50N9Z5L
4WE6R61B/CG24N9Z5L 4WE6R61B/CG12N9Z5L 4WE6R61B/CW220-50N9Z5L
4WE6T61B/CG24N9Z5L 4WE6T61B/CG12N9Z5L 4WE6T61B/CW220-50N9Z5L
4WE6A61B/CG24N9Z5L 4WE6A61B/CG12N9Z5L 4WE6A61B/CW220-50N9Z5L
4WE6C61B/CG24N9Z5L 4WE6C61B/CG12N9Z5L 4WE6C61B/CW220-50N9Z5L
4WE6D61B/CG24N9Z5L 4WE6D61B/CG12N9Z5L 4WE6D61B/CW220-50N9Z5L
4WE6B61B/CG24N9Z5L 4WE6B61B/CG12N9Z5L 4WE6B61B/CW220-50N9Z5L
4WE6Y61B/CG24N9Z5L 4WE6Y61B/CG12N9Z5L 4WE6Y61B/CW220-50N9Z5L
4WE6J61B/CG24N9Z5L 4WE6J61B/CG12N9Z5L 4WE6J61B/CW220-50N9Z5L
4WE6E61B/CG24N9Z5L 4WE6E61B/CG12N9Z5L 4WE6E61B/CW220-50N9Z5L


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
4WE6A61B/CG24NDKL  4WE6A61B/CG12NDKL  4WE6A61B/CW220-50NDKL
DR30-1-30B/100  DR30-1-30B/315  DR30-1-30B/100M  DR30-1-30B/315M
DR30-2-30B/100  DR30-2-30B/315  DR30-2-30B/100M  DR30-2-30B/315M
DR30-3-30B/100  DR30-3-30B/315  DR30-3-30B/100M  DR30-3-30B/315M
DR10DP2-40B/25Y  DR10DP2-40B/75Y  DR10DP2-40B/150Y  DR10DP2-40B/210Y
DR10DP2-40B/25YM  DR10DP2-40B/75YM  DR10DP2-40B/150YM  DR10DP2-40B/210YM
RVP6-10B/  RVP8-10B/  RVP10-10B/  RVP12-10B/  RVP16-10B/
RVP20-10B/  RVP25-10B/  RVP30-10B/  RVP40-10B/  
Z2FS10B3-30B/  Z2FS10B3-30B/S  Z2FS10B3-30B/S2  Z2FS10B3-30B/S3  Z2FS10B3-30B/S4
Z2FS10B5-30B/  Z2FS10B5-30B/S  Z2FS10B5-30B/S2  Z2FS10B5-30B/S3  Z2FS10B5-30B/S4
Z2FS10B7-30B/  Z2FS10B7-30B/S  Z2FS10B7-30B/S2  Z2FS10B7-30B/S3  Z2FS10B7-30B/S4
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