What are the factors that affect the use of fully welded ball valves?

As we all know, ball valves are widely used in chemical, petroleum, metallurgical and other fields. The inner wall of the popular fully welded ball valve is extremely smooth. In the process of the ball valve conveying the medium, the friction between the inner wall of the ball valve and the medium is very small, and the medium can pass through unimpededly. However, the fully welded ball valve will be affected by some factors during operation.

1. The influence of sealing material

In actual working conditions, all-welded ball valves generally use various gases as media: such as natural gas, gas, coal gas, chemical industry, heating, heating, etc. The temperature of these media is generally between -20°C and 150°C, and The nominal pressure is PN16-25 pressure, and the soft seal can meet the requirements, but the quality of the soft seal material is not too hard, and it is easy to cause medium leakage. And because of the serious wear and tear of the medium, the service life of the fully welded ball valve will be greatly reduced over time.

2. The influence of processing technology

The overall quality of various fully welded ball valve spools will be determined by the processing technology. The thickness of the wear-resistant layer of the molded hose is uneven, which is likely to cause the thin part to be broken first. Therefore, the wear resistance and acid and alkali resistance of the ball valve will become very poor, which can only meet the general working conditions, and the spool of the fully welded ball valve with high-quality technology can well ensure the wear layer and uniform thickness of the cloth layer.

3. The influence of material corrosion

Affected by the corrosion of the valve body, the opening and closing mechanism is damaged, and the valve body is poorly made. The driving device, pneumatic or electric actuator of the fully welded ball valve is often closed too tightly or not completely closed. The rust of the material of the fully welded ball valve will greatly reduce the workpiece Service life.

In summary, the main influencing factors in the use of fully welded ball valves are the sealing material, processing technology, material corrosion, etc. Therefore, in the process of selecting and using high-quality fully welded ball valves, users need to carefully study the manufacture of fully welded ball valves Process and materials, and make reference selection according to the actual application.