Upgraded filtration accuracy! Deciphering the working principle of 5 Micron Melt Blown PP Filter

As people pay more and more attention to water safety, the technology of water purification equipment is also constantly updated. In this process, the filter element, as an indispensable "core component" in the system, undertakes the key task of intercepting impurities and ensuring water quality. In particular, 5 Micron Melt Blown PP Filter, with its ideal filtration accuracy and wide application scenarios, has become one of the common and important primary filtration solutions in water purification equipment.

5-micron melt-blown PP filter element refers to a hollow fiber structure filter element made of polypropylene (PP) material, made by melt-blown process, and with a filtration accuracy of 5 microns. Its main features are: the filtration accuracy is 5μm, which can effectively intercept rust, sediment, suspended matter, algae, colloids and other particulate impurities in water; no binder is added, pure physical pressing molding, non-toxic and harmless; gradient structure design, from the outer layer to the inner layer, the density gradually increases, and the filtration is more thorough. It is usually used as a pre-filter element for water purification equipment, and is the first barrier to protect high-precision components such as rear-end RO membranes and activated carbon filters.

Meltblowing technology is to melt polypropylene at high temperature, and then use high-pressure hot air flow to spray it into extremely fine filaments, randomly stack it into a net, and cool and solidify it to form a three-dimensional porous structure. This structure creates the unique "deep filtration" ability of the meltblown filter element. By controlling the spinning speed, temperature and fiber diameter, manufacturers can accurately set the filtration level of the filter element, ranging from 1 micron to 50 microns, of which 5 microns is the most widely used general level.

The 5-micron filtration accuracy is just at the golden balance point between "general filtration" and "protecting the post-stage fine filtration unit". The following are the four core practical advantages it brings:

Effectively remove large particle pollutants, the pore size of 5μm is enough to intercept most visible impurities, such as mud, rust, algae and suspended particles, directly improving the color and taste of water quality. This not only improves the quality of the water, but also lays a good foundation for more refined subsequent filtration.

Significantly extend the life of the water purification system. High-precision pre-filtration can prevent a large amount of impurities from entering the RO membrane or ultrafiltration membrane, avoid membrane clogging, thereby extending the use cycle of the filter membrane and reducing the frequency of filter element replacement. In the long run, this can effectively reduce maintenance costs and material waste.

Maintaining stable water pressure and flux, compared with low-quality filter elements that are easy to clog and affect the water output speed, the 5-micron melt-blown filter element has a transparent structure and low pressure loss. Even in a continuous operation environment, it can maintain good water flow and improve system efficiency and user experience.

Realize the construction of a graded filtration system. As the "first line of defense", it can be used in conjunction with 1-micron, activated carbon, RO membrane and other modules to build a multi-level water purification system, achieving efficient coordination from coarse filtration to fine filtration, so that each level of filter element can be used to its full potential and maximize efficiency.

It can be said that the 5-micron precision is not a blind pursuit of "the smaller the better", but a "efficient and stable" solution based on the scientific trade-off between flow rate, flux, maintenance and cost.

The 5-micron meltblown PP filter element is now not only a standard feature of household water purifiers, but its stable performance and versatility make it widely deployed in: industrial cleaning and circulating water filtration systems; water purification in medical institutions; liquid treatment in food and beverage factories; impurity filtration of raw liquid in chemical plants; front-end filtration of ultrapure water in the semiconductor industry; and special purposes such as agricultural irrigation water and aquaculture water.