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
这种安全阀的缺点是所加的载荷会随着阀的开启而发生变化，即随着阀瓣的升高，弹簧的压缩量增大，作用在阀瓣上的力也跟着增加。这对安全阀的迅速开启是不利的。另外，阀上的弹簧会由于长期受高温的影响而使弹力减小。用于温度较高的容器上时，常常要考虑弹簧的隔热或散热问题，从而使结构变得复杂起来。
