What Are The Problems With Sanitary Valves In Production?

Sanitary Valve is used in the production of some food, medical, cosmetics and other products with high requirements for hygiene level. Therefore, the requirements for sanitary valves are also relatively high. If there are problems with the valves during the production process, it is absolutely not allowed. Therefore, these problems must be avoided as much as possible during production.

The problems that occur in the processing of raw valves are:
1. The scratches caused by human factors such as bumps and hammering during transportation or processing are very serious, which increases the difficulty of surface treatment in the subsequent processing process. This is also the main reason why the valve will rust after treatment.
2. During welding, because the defects of the weld are more serious, manual machinery is often used for grinding treatment. The grinding marks will be uneven on the surface, affecting the appearance of the valve, or the weld is pickled and passivated to a certain extent, which will also affect the appearance.
3. For problems such as scratches that occur during processing, even if the entire pickling and passivation are performed, the scratches cannot be completely wiped off, and the carbon steel or impurities such as splashes that adhere to the surface due to scratches or welding splashes cannot be removed, resulting in the presence of corrosive media and finally causing the valve to rust.
4. Pickling passivation paste is not omnipotent for cleaning sanitary valves, especially for the oxide scale produced by plasma cutting or flame cutting, which is particularly difficult to remove.