HED8OH-L1X/20Z14
HED8OH-L1X/35Z14
HED8OP-L1X/5Z14
HED8OP-L1X/10Z14
HED8OP-L1X/20Z14
HED8OP-L1X/35Z14
HED8OA-L1X/5Z14
HED8OA-L1X/10Z14
HED8OA-L1X/20Z14
HED8OA-L1X/35Z14
HED8OH-L1X/5L24
HED8OH-L1X/10L24
HED8OH-L1X/20L24
HED8OH-L1X/35L24
HED8OP-L1X/5L24
HED8OP-L1X/10L24
HED8OP-L1X/20L24
HED8OP-L1X/35L24
HED8OA-L1X/5L24
HED8OA-L1X/10L24
HED8OA-L1X/20L24
HED8OA-L1X/35L24
截止阀只许介质单向流动，安装时有方向性。截止阀的结构长度大于闸阀，流体阻力大，长期运行时，密封可靠性不强。
截止阀分为三类：直通式截止阀、直角式截止阀及直流式斜截止阀。
Zui明显的优点是：在开启和关闭过程中，由于阀瓣与阀体密封面间的摩擦力比闸阀小，耐磨。开启高度一般仅为阀座通道直径的1/4，比闸阀小的多。通常在阀体和阀瓣上只有一个密封面，制造工艺性比较好，便于维修