弹簧微启式安全阀是利用压缩弹簧的力来平衡作用在阀瓣上的力。螺旋圈形弹簧的压缩量可以通过转动它
上面的调整螺母来调节，利用这种结构就可以根据需要校正安全阀的开启(整定)压力。弹簧微启式安全阀结构轻便紧凑，灵敏度也比较高，安装位置不受限制，而且因为对振动的敏感性小，所以可用于移动式的压力容器上。
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/BW220-50N 4WE6V61B/CW220-50N9DKL
4WE6F61B/CG12N9DKL 4WE6V61B/CW220-50N9DL
4WE6F61B/CG12N9K4 4WE6V61B/CW220-50N9Z5
4WE6F61B/CG12N9Z4 4WE6V61B/CW220-50N9Z5L
4WE6F61B/CG12N9Z5 4WE6V61B/CW220-50NDKL
4WE6F61B/CG12N9Z5L 4WE6V61B/CW220-50NDL
4WE6F61B/CG12NDKL 4WE6V61B/CW220-50NK4
4WE6F61B/CG12NZ4 4WE6V61B/CW220-50NZ5
4WE6F61B/CG12NZ5 4WE6V61B/CW220-50NZ5L
4WE6F61B/CG12NZ5L 4WE6W50B/AG24N
4WE6F61B/CG24N9DKL 4WE6W50B/AW220-50N
4WE6F61B/CG24N9K4 4WE6W50B/BG24N
4WE6F61B/CG24N9Z4 4WE6W50B/BW220-50N
4WE6F61B/CG24N9Z5 4WE6W61B/CW220-50N9Z5L
4WE6F61B/CG24N9Z5L 4WE6Y61B/CG12N9DKL
4WE6F61B/CG24NDKL 4WE6Y61B/CG12N9DL
4WE6F61B/CG24NZ4 4WE6Y61B/CG12N9K4
4WE6F61B/CG24NZ5 4WE6Y61B/CG12N9Z5L
4WE6F61B/CG24NZ5L 4WE6Y61B/CG12NDL
4WE6F61B/CW220-50N9DKL 4WE6Y61B/CG12NK4
4WE6F61B/CW220-50N9K4 4WE6Y61B/CG12NZ4
4WE6F61B/CW220-50N9Z4 4WE6Y61B/CG24N9DKL
4WE6F61B/CW220-50N9Z5 4WE6Y61B/CG24N9DL
4WE6F61B/CW220-50N9Z5L 4WE6Y61B/CG24N9K4
4WE6F61B/CW220-50NDKL 4WE6Y61B/CG24N9Z5L