How often should the pleated filter be replaced?

Accurately determining the timing of filter replacement is the key to ensuring water quality and reducing costs. As the core component of the water control system, the performance of the pleated filter cartridge directly affects the quality of the effluent. Whether it is household water purification or industrial filtration, it is crucial to seize the opportunity for their exchange. This article will introduce the key factors that affect the lifespan of pleated filter cartridges, elaborate on the methods for determining the timing of replacement, and provide applicable techniques for extending lifespan!

How does pleated filter cartridge work?

The pleated  filter cartridge is created using a unique multi fold pleated process, which folds the filter membrane into multiple folds, thus inventing a huge filtration area within a limited volume! This design enables the filter element to have a high dirt holding capacity and relatively low pressure consumption;

The filtering accuracy range is ordinary, ranging from 0.1 μ m to 60 μ m, and can meet the precise filtering needs of different manipulation scenarios; The end cap sealing and overall structural connection of the filter element often use hot melt bonding to avoid the use of adhesives that can cause pollution;

When the fluid passes through the pleated filter element, a mechanism combining surface filtration and deep filtration is adopted; The fluid passes through the pre filtration layer to remove larger particles, and then enters the fine filtration layer, where small particles are trapped in the contour or internal pores of the filter membrane!

What factors affec the pleated filter service life?

• Nature of filter media: Handling the chemical properties of fluids directly affects the lifespan of filter cartridges! High viscosity fluids can increase filtration resistance, while corrosive media such as strong alkalis can degrade filter membrane materials!
• Impurity content and particle size: The concentration and particle size distribution of suspended solids in the fluid are the core factors determining the lifespan of the filter cartridge! Large particle impurities will quickly clog the contour pores of the filter element, significantly shortening the filtration cycle;
• Operating environment entry: Temperature and pressure have a profound impact on filter material! High temperature environments can accelerate the aging process of polymer materials, while excessive work pressure can cause micropores to spread and affect filtration accuracy;
• Usage intensity and traffic: The cumulative working time and flow rate of the filter element are directly related to its lifespan. Continuous operation systems naturally require more frequent replacement than intermittent systems;

What signal the pleated filter element needs to be replaced?

Increased pressure difference and decreased flow rate The most direct way to change the flag is to significantly supplement the pressure difference or significantly slow down the outflow velocity! When the filter element is clogged, the fluid resistance increases, causing an increase in inlet pressure and a decrease in outlet pressure, resulting in a decrease in flow rate;

Deterioration of water quality The change in effluent quality target is an important identification basis; If you see turbidity enhancement, odor appearance, or particulate matter leakage, explain that the filter cartridge is no longer effective.

Using Shaohua to achieve the reference cycle Even if there is no obvious instinctual decline, when the filter element is close to the recommended replacement cycle (usually 3-6 months), it should be replaced appropriately. Especially under continuous operation or high load conditions, preventive replacement is more economical and reasonable than waiting for satisfactory congestion;

Comparison of Characteristics of pleated Filter Cartridge with Different Materials

How to extend the service life of filter pleated filter cartridges?

Avoid overloading operation Reasonably consider the intensity of filtering tasks to prevent the filter element from operating at its limit for a long time; Choosing an appropriate capacity filter according to practical needs can prevent premature congestion and instinctual decay!

Implement reasonable cleaning and maintenance Regular and appropriate cleaning can restore the performance of the filter element in the department! **Physical cleaning techniques (such as backwashing) can remove contour deposits, while for deep blockages, chemical cleaning may be necessary;

Strengthen pre-processing measures Proper pretreatment can significantly reduce the burden of pleated filter cartridges. By using pre filtration, sedimentation, or multi-stage filtration formats to remove large particle impurities, the service life of the compact filter element can be extended;

Optimize operational parameters Operating within the recommended temperature and pressure range helps maintain the natural stability of the filter element; Avoiding severe temperature shock and pressure impact can prevent damage to the filter membrane structure.

What application is for pleated filter cartridge?

In the pharmaceutical and food industries, the replacement of pleated filters is not only based on performance indicators, but also needs to comply with GMP and relevant hygiene standards! Even if the pressure difference does not significantly increase and reaches the required application level, it still needs to be replaced to ensure product safety.

For the preparation of high-purity water and the replacement of filter cartridges, a comprehensive judgment should be made based on water quality targets such as resistivity and TOC; Even if the apparent pressure difference does not change significantly and trace pollutants may precipitate, it may still affect the final water quality and require a more dignified replacement method.

In the industrial wastewater treatment scenario, the impurity concentration is high and the frequency of filter replacement is usually higher! It is necessary to develop a flexible replacement plan based on the characteristics of water quality fluctuations and process requirements, and if necessary, use online monitoring methods to achieve on-demand replacement!

Conclusion:

With the advancement of filtration technology, modern pleated filter cartridges can achieve more precise filtration effects and longer service life. Wise users will maintain their own process requirements, establish a comprehensive control plan for regular testing, recording pressure difference changes, and observing water quality targets.

A scientific filter replacement strategy can not only ensure stable water quality, but also significantly reduce long-term operating costs; As professionals have said, timely replacement of filter cartridges is the most economical adjustment for the entire organization;