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:
4WE6C50B/BG24N 4WE6A50B/BG24N
4WE6C50B/BW220-50N 4WE6A50B/BW220-50N
4WE6C61B/CG12N9DKL 4WE6A61B/CG12N9DKL
4WE6C61B/CG12N9DL 4WE6A61B/CG12N9DL
4WE6C61B/CG12N9K4 4WE6A61B/CG12N9Z5
4WE6C61B/CG12N9Z5L 4WE6A61B/CG12N9Z5L
4WE6C61B/CG12NDKL 4WE6A61B/CG12NDKL
4WE6C61B/CG12NDL 4WE6A61B/CG12NDL
4WE6C61B/CG12NK4 4WE6A61B/CG12NK4
4WE6C61B/CG12NZ4 4WE6A61B/CG12NZ5L
4WE6C61B/CG24N9DKL 4WE6A61B/CG24N9DKL
4WE6C61B/CG24N9K4 4WE6A61B/CG24N9DL
4WE6C61B/CG24N9Z5L 4WE6A61B/CG24N9Z5
4WE6C61B/CG24NDKL 4WE6A61B/CG24N9Z5L
4WE6C61B/CG24NDL 4WE6A61B/CG24NDKL
4WE6C61B/CG24NK4 4WE6A61B/CG24NDL
4WE6C61B/CG24NZ4 4WE6A61B/CG24NK4
4WE6C61B/CW220-50N9DKL 4WE6A61B/CG24NZ5L
4WE6C61B/CW220-50N9DL 4WE6A61B/CW220-50N9DKL
4WE6C61B/CW220-50N9K4 4WE6A61B/CW220-50N9DL
4WE6C61B/CW220-50N9Z5L 4WE6A61B/CW220-50N9Z5
4WE6C61B/CW220-50NDKL 4WE6A61B/CW220-50N9Z5L
4WE6C61B/CW220-50NDL 4WE6A61B/CW220-50NDKL
4WE6C61B/CW220-50NK4 4WE6A61B/CW220-50NDL
4WE6C61B/CW220-50NZ4 4WE6A61B/CW220-50NK4
4WE6D50B/AG24N 4WE6A61B/CW220-50NZ5L
安全阀结构主要有两大类:弹簧式和杠杆式。弹簧式是指阀瓣与阀座的密封靠弹簧的作用力。杠杆式是靠杠杆和重锤的作用力。随着大容量的需要,又有一种脉冲式安全阀,也称为先导式安全阀,由主安全阀和辅助阀组成。当管道内介质压力超过规定压力值时,辅助阀先开启,介质沿着导管进入主安全阀,并将主安全阀打开,使增高的介质压力降低。