Explanation of the quality of the filter element in the inferior filter

The filter element is an important part of the filter, and the pp cotton filter element manufacturer can often expose the problem of the filter. 1. Use low-priced filter paper to make the filter element, because of its large pore size, poor uniformity and low filtration efficiency, the polypropylene filter element cannot effectively filter out the harmful impurities of the engine, resulting in the early wear of the engine. 2. Use low-quality adhesive, and the amount is very small, which is neither oil-resistant nor firmly bonded, resulting in a short circuit at the bonding of the filter element; or using staples at the joints of the filter element, which cannot be sealed and short-circuited, allowing a large amount of harmful impurities to enter engine, reducing engine life. 3. Replace the oil-resistant rubber parts with ordinary rubber parts. During the use of the 3M high-flow filter element, the internal short circuit of the filter is formed due to the failure of the internal seal, resulting in the early wear of the engine, the reduction of its life, or the expansion and deformation of the external seal, resulting in the oil filter. The outer sealing ring of the cleaner is extruded, and a large amount of oil is drained in a short period of time, causing the engine to burn tiles and hold the shaft and suffer serious damage. 4. Spot welding is used instead of seam welding at the welding part of the air filter shell. The 3M rigid PP filter element cannot guarantee the tightness, resulting in a short circuit. 5. The material of the center tube of the oil filter is thin and thick, and the strength is not enough. During use, the center tube is shrunk, the filter element is damaged and the oil circuit is blocked, resulting in insufficient engine lubrication; or the reliability of the bite is poor, and the bite is pulled during use. open, resulting in a large amount of oil leakage in a short period of time, resulting in burning tiles and holding the shaft. 6. Metal parts such as filter element end cover, central tube and shell are not treated with anti-rust treatment, which will cause metal corrosion and produce impurities, making the filter a source of pollution. More serious filter manufacturers use cement instead of adhesive, which is more harmful. When judging whether a filter is good or bad, we must focus on the quality of the filter element. A good filter is crucial. The material of the center tube of the oil filter is thin instead of thick, and the strength is not enough. During the use process, the center tube is sucked, the filter element is damaged and the oil circuit is blocked, resulting in insufficient lubrication of the engine; or the reliability of the bite is poor, and the bite is pulled open during use. Resulting in a large amount of oil leakage in a short period of time, resulting in burning tiles and holding the shaft.

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