为防止水击采用减缓关闭时间，拉长关闭行程和向外泄压等措施。

To protect water hammer, the technologies of enlarging slow-closing time, prolongating closing distance of run and pressure relieving are adopted in this device.

youdao

由于阀瓣的关闭行程缩短及弹簧作用可加速关闭效果，减少水锤及水击声。

The disc's shutoff stroke is very short and under the effect of the spring, the valve can close quickly and prevent the big noise from water-hammering.

youdao

阀杆开启或关闭行程相对较短，并具有非常可靠的切断动作，使得这种阀门非常适合作为介质的切断或调节及节流使用。

Open or close the valve stem travel relatively short, and very reliable cutting action, making this valve is suitable for medium and cutting off or regulating use.

youdao