How to carry out rust removal operation for Sanitary Valve? Why do sanitary valves rust during use? So how should we resolve this situation? Below, the manufacturer of sanitary valves will summarize several rust removal methods for sanitary valves.

1. Tool rust removal

Mainly using tools such as wire brushes to polish the surface of steel, it can remove loose or raised oxide scales, rust, welding slag, etc. Manual tools can achieve a rust removal level of Sa2, while power tools can achieve a rust removal level of Sa3. If the steel surface is firmly adhered to an oxide scale, the rust removal effect of the tool is not satisfactory

Ideal, deep pickling of anchor lines that cannot meet the requirements of anti-corrosion construction

2. Acid pickling and rust removal

Generally, two methods are used for acid washing treatment: chemical and electrolytic. For pipeline corrosion prevention, only chemical acid washing is used to remove oxide scale, rust, and old coatings. Sometimes, it can be used as a post-treatment after sandblasting and rust removal. Although chemical cleaning can achieve a certain level of cleanliness and roughness on the surface, its anchor

Shallow texture and easy to cause pollution to the environment.

3. Spray (throw) rust removal

Spraying (throwing) rust removal is achieved by driving the spraying (throwing) blades to rotate at high speed through a high-power motor, which causes abrasive materials such as steel sand, steel shot, iron wire segments, and minerals to spray (throw) the surface of steel pipes under centrifugal force. This not only thoroughly removes rust, oxides, and dirt, but also

Under the strong impact and friction of abrasives, the required uniform roughness can still be achieved. After spraying (throwing) rust removal, it can not only expand the physical adsorption effect on the surface of the pipe, but also enhance the mechanical adhesion between the anti-corrosion layer and the surface of the pipe. Therefore, spraying (throwing) rust removal is a pipeline

The ideal rust removal method for corrosion prevention. Generally speaking, shot blasting (sand) rust removal is mainly used for inner surface treatment of pipes, while shot blasting (sand) rust removal is mainly used for outer surface treatment of pipes. Several issues should be noted when using spray (throwing) for rust removal.

The above are several rust removal methods for sanitary valves, hoping to be helpful to everyone.