In the meltblown filter element, we can never ignore the filter element, although the core is small, the effect is very large, but of course there are some shoddy filter elements on the market, if we do not master the skills, it is easy to be deceived, let's go with Tianjin Binhai Ruichuang Filter Material Technology Co., Ltd. to see the identification of the quality of the filter element, I hope it will help you.

1. Look at the material of the filter element

The main filter material of the air filter element is filter paper, and the filter paper of the filter element is mainly made of domestic paper and imported paper, whether it is domestic or imported paper, it has good filtration performance, and the inferior filter paper used by the counterfeit filter element cannot prevent dust from entering the engine, thus affecting the normal operation of the engine. Generally, the color of the filter paper of the genuine filter element is uniform, and the paper surface is relatively flat; The color of the inferior filter cartridge filter paper is not uniform, the paper surface is hairy, and the texture is very poor

2. Look at the gum of the filter element

At present, the structure of the filter element is generally composed of filter paper and rubber adhesive, and the gum of the real and false filter elements is also different. The rubber of the genuine filter is good and elastic, while the rubber of the counterfeit filter is soft and has a poor texture. It is easier to identify the way to fold the air filter in half, and the genuine filter element will quickly return to its original state after loosening, while the counterfeit filter element is not well bonded with the filter paper due to the rubber texture problem, and the middle trace of the fold is obvious.

We all know that the first level of the water purifier is the PP filter element, also known as meltblown PP, the material is polypropylene (PP material), the main role is to filter various harmful impurities with a diameter greater than 1 micron in the tap water, organic pollution, minerals, debris, etc., because there is no sewage function, its service life is generally 3-6 months, so the filter element should be replaced regularly, otherwise it will cause secondary pollution problems, and the water quality cannot be guaranteed. According to the scope of use, it can be divided into 10 inches - 40 inches, which can be customized according to special requirements, density, length and weight. Look at the density first, according to the difference in aperture can be divided into 1um and 5um, and then look at the weight of about 100g and 110g, the aperture can not be identified by the naked eye, and the weight and touch can be distinguished by hand. The quality of the filter element directly affects the quality and filtration effect of the water purifier, so the commonly used 1 micron and 5 micron are generally used, and the heavy one is the best choice. At the same time, because the PP cotton filter element is generally used in the first three stages, it must be replaced regularly, otherwise it will affect the service life of the RO membrane and the TDS value of the effluent quality.

Is the PP cotton filter better hard or soft? In fact, the higher density and the stronger it is pinched, which means that the compressibility is also high, the filtration accuracy and service life are longer, and the soft PP may spread out after the water pressure is large or used for a long time, resulting in a decrease in filtration and affecting the normal operation of the RO machine, so it is necessary to have an advantage in quality and price in PP to fundamentally improve the quality of the entire water purifier.