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After working in filtration for so many years, I have encountered all kinds of problems. Let me summarize the most common fault types and troubleshooting approaches. The first situation is sudden sharp increase in pressure drop. This is usually caused by filter cartridge damage or seal gasket failure. The solution is to shut down and […]

Many engineers when designing filtration systems only focus on filtration accuracy and do not pay enough attention to pressure drop. In reality, pressure drop is directly related to energy consumption and selection. The pressure drop throughout the system includes several parts: pressure drop across the filter cartridge itself, pressure drop in pipes and valves, and

Filter cartridges as consumables account for a significant cost share. If you can apply the following points well, you can significantly extend service life. First, do pre-treatment well. Before material enters the filter cartridge, use coarse filtration or centrifugation to remove large particles and easily clogging substances. This is like changing engine oil in a

Oil and gas field filtration environments are extremely harsh, with high sulfur content, high salinity, and high pressure, placing extremely demanding requirements on filtration equipment. I have accumulated experience using metal filter cartridges in multiple oil and gas projects in the Middle East and China. For sulfur-containing media, corrosion-resistant alloys must be used. Ordinary 316L

Pharmaceutical industry filtration requirements may be the highest among all industries. Having participated in multiple GMP workshop filtration system designs, I share some practical experience. Purified water systems typically use two-stage filtration. The first stage is 5-micron precision filtration, primarily removing large particles and colloidal substances to protect the downstream terminal filter. The second stage

Food and beverage industry filtration requirements are indeed much stricter than ordinary industrial applications. Through multiple food factory projects, I have compiled several key design points. First, materials must be food-grade. 304 stainless steel is the basic requirement, but for acidic or alkaline materials, 316L should be used. All product-contact surfaces must achieve a smoothness

Many people ask me how often filter cartridges should be replaced. There is no standard answer. I usually tell clients four words: watch the pressure drop. After installing a new filter cartridge, record the initial pressure drop. When the differential pressure rises to 1.5 times the initial value, it is time to consider replacement. If

Sintered mesh filter cartridges show clear advantages in petroleum, chemical, and high-temperature gas filtration scenarios. In a recent refinery project, I replaced traditional pleated filters with sintered mesh, extending service life from three months to eight months. The principle of sintered mesh is to sinter multiple layers of stainless steel wire mesh together at high

In the industrial filtration field, the selection of filter cartridges directly determines the efficiency of the entire system. Many purchasers only focus on price, only to find that later maintenance costs far exceed expectations. After fifteen years in this industry, I have compiled five key considerations that are most often overlooked but are crucial. First,