Thermal insulation ball valve and flange gate valve is belong to the same type of valve, the difference between its closure is a ball, the ball around the body center line for the rotation to achieve the open, close a valve. Ball valve in the pipeline is mainly used to do the cutting, distribution and change the direction of the flow of media. Two piece ball valve, three piece ball valve, is widely used in recent years, a new type of valve, the general level of the installation of such valves.
Thermal insulation ball valve is a relatively new type of ball valve, it has its own unique structure of some of the advantages, such as the switch without friction, seal is not easy to wear, opening and closing torque is small. This reduces the size of the actuator. Equipped with multi turn electric actuator, can realize the adjustment of the medium and tight cut off. Widely used in oil / chemical / metallurgy / pharmaceutical / city water supply and drainage, such as strict cut-off conditions.
Note: parameters are for reference only, or are not full. Valve can be used in accordance with the requirements of different pressure, material, caliber. Specific please contact or online advisory contact.
1. 流体阻力小,其阻力系数与同长度的管段相等。
2. 结构简单、体积小、重量轻。
3. 紧密可靠,目前球阀的密封面材料广泛使用塑料、密封性好,在真空系统中也已广泛使用。
4. 操作方便,开闭迅速,从全开到全关只要旋转90°,便于远距离的控制。
5. 维修方便,球阀结构简单,密封圈一般都是活动的,拆卸更换都比较方便。
6. 在全开或全闭时,球体和阀座的密封面与介质隔离,介质通过时,不会引起阀门密封面的侵蚀。
7. 适用范围广,通径从小到几毫米,大到几米,从高真空至高压力都可应用。 球旋转90度时,在进、出口处应全部呈现球面,从而截断流动。