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Analysis of the corrosion resistance of vacuum pumps: Vacuum pumps are widely used and essential in industries such as chemicals, petroleum, pharmaceuticals, and new materials. Due to the specific requirements of various processes, the suction side of vacuum systems is often exposed to corrosive conditions to varying degrees; in cases where corrosion is severe, vacuum pumps may need to be replaced every 2–3 months. Therefore, the corrosion resistance of vacuum pumps is a very important issue that needs to be addressed in practice. Compared to vacuum pumps made of ordinary materials, Tener Vacuum offers several solutions: a classification of factors related to corrosion resistance, reasons for poor durability, as well as measures and recommendations. In the case of low-vacuum water ring vacuum pumps, the issue arises when the gas being pumped mixes with water, resulting in the formation of acids or bases that exacerbate corrosion. ①The components exposed to excessive flow are made of 304 or 316 material.② It is replaced by a water jet pump unit; reciprocating vacuum pumps feature piston reciprocation motion and involve contact-based compression. The cylinders are made of 304 material, while the intake and exhaust valves are made of 316L material. Ordinary materials are generally not resistant to corrosion in high-vacuum screw vacuum pumps. ①The part subject to overcurrent flow has a coating layer that comes off very easily; ② switch to 304 material – ordinary materials used in rotary vane vacuum pumps are generally not corrosion-resistant. ①The overcurrent section has a coated layer (which easily peels off); ② Switch to 304 material