国产a精品视频,2020黄片在线免费观看,久久亚洲精品女人黄,亚洲国产一级在线观看在,久久精品毛片免费不卡,免费国产a深夜影院

current location: Home   >> News >> Company news

Dial ball valve advantages

The dial ball valve is made of a ball with a circular channel as the opening and closing part. The ball rotates with the stem to realize the opening and closing action of the valve. The opening and closing member of the dial ball valve is a perforated sphere,

It rotates around the axis perpendicular to the channel to achieve the purpose of opening and closing the channel. Dial ball valves are mainly used to open and close pipelines and equipment media.

The main advantages of dial ball valves are as follows:

1. It is suitable for frequent operation, quick opening and closing, and portable.

2. Low fluid resistance.

3, simple structure, relatively small volume, light weight, easy maintenance.

4. Good sealing performance

5, not limited by the installation direction, the flow of media can be arbitrary.

6. No vibration, low noise.


手游| 谢通门县| 海城市| 涟源市| 会理县| 亳州市| 海城市| 西峡县| 磐石市| 长子县| 陇川县| 丽江市| 玛多县| 保山市| 玉树县| 拉萨市| 马尔康县| 永兴县|