Hygienic valves are used in the production of some food, medical, cosmetics and other products with higher requirements on hygiene. Therefore, the requirements for sanitary valves are relatively high. If the valves are in the production process, it is absolutely not allowed. of. Therefore, we must try our best to avoid these problems during production.
The problems that occur in the processing of sanitary valves are:

First, the scratches caused by human factors such as bumps and hammers during handling or processing are very serious, which makes it more difficult to handle the surface during the subsequent processing. This is why the valve will be born after disposal. The main cause of rust.

Secondly, when welding, because the weld defects are more severe, it is often used to grind the manual machinery. The appearance of the grinding marks will be uneven, affecting the appearance of the valve, or a certain acidity on the weld. Washing passivation will also affect the appearance of the appearance.

Thirdly, for scratches and the like which occur during processing, even if the entire pickling passivation does not erase all the scratches, and it is not possible to scratch or weld the carbon steel or splash on the surface. The impurities are removed, causing the presence of corrosive media to eventually rust the valve.

Fourth, the pickling passivation paste is not versatile for the cleaning of sanitary valves, especially for scales produced by plasma incision or flame incision.