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The pump chain housing may indeed require rust removal treatment during use, especially in humid, highly corrosive, or exposed outdoor environments. Many pump chain housings have already been treated with anti-corrosion materials or surface protection, such as galvanizing, stainless steel, or sprayed with anti rust coatings, at the factory. However, in environments with long-term operation or frequent contact with water vapor, acidic and alkaline substances, these protective layers may still age, be damaged or fall off, causing oxidation reactions and rusting of the metal surface in direct contact with air and moisture.
Once rust spots appear on the surface of the pump chain housing, if not treated in a timely manner, the rust may gradually spread, affecting the strength and sealing performance of the housing, and even causing structural deformation or rupture, reducing its protective effect on the chain and pump body. Therefore, immediate treatment should be carried out upon discovering signs of rust, usually by using wire brushes, sandpaper, or mechanical polishing to remove rust spots, and then re spraying anti rust coating or covering with corrosion-resistant coating to restore its surface protection ability.
The pump chain housing working in highly corrosive environments should also consider regular preventive rust removal maintenance, such as checking the surface for peeling, discoloration, or signs of rust every few months, and performing local repairs or repainting as appropriate. If the shell structure is complex or severely corroded, anti rust grease, sealing protectants, or electrochemical anti-corrosion methods can also be considered to improve its long-term reliability. Rust removal is not only a visual treatment, but also an important maintenance step to ensure that the shell continues to effectively perform its protective function.
