[Hongjie Water Service] Several major classifications of filter cartridge types

Principles and differences between internal pressure and external pressure ultrafiltration membranes:

1、 PP filter element

PP filter element, also known as PP melt blown filter element, is made of polypropylene ultra-fine fiber hot melt entanglement. The fibers randomly form a three-dimensional microporous structure in space, and the pore size of the micropores is distributed in a gradient along the flow direction of the filtrate. It integrates surface, deep, and fine filtration, and can intercept impurities of different particle sizes. Filter cartridge accuracy range 0.5-100 μ m. Its flux is more than 1.5 times that of the same precision peak room filter element, and it can be equipped with different types of end cap joints to meet the needs of various engineering installations.

2、 Wire wound filter element

It is refined by precisely winding textile fiber yarns with good filtration performance onto a porous framework. The yarn materials include polypropylene fiber, acrylic fiber, defatted cotton fiber, etc. By controlling the elasticity and density of the yarn during winding, different precision water purifier filter cartridges can be made, which can effectively remove suspended solids, particulate impurities, and other liquids, and have a high purification effect on various liquids. Folding filter element

3、 Folding Microporous Filter

The folding microporous filter element is a precision filtering device made of polypropylene (Polypropylene) hot spray fiber membrane, nylon (Nylonb) polytetrafluoroethylene (PTEE) microporous filter membrane, and other filtering media. It has the advantages of small volume, large filtering area, and high accuracy. The filtering accuracy range can be from 0.1 μ M to 60 μ M. The sealing of the filter end cover and the overall structural connection are all made by hot melt bonding. There are three international types of filter element connectors: 222 connector, 226 connector, and flat mouth. The products undergo strict and complete testing before leaving the factory to ensure stable performance.

4、 Activated carbon filter element

There are two main categories of activated carbon filter products: compressed activated carbon filter and bulk activated carbon filter.

1. The compressed activated carbon filter adopts high adsorption value coal based activated carbon and coconut shell activated carbon as filter materials, and is sintered and compressed with food grade adhesive. The compressed activated carbon filter element is wrapped with a layer of non-woven fabric with filtering function inside and outside, ensuring that the carbon core itself will not drop carbon powder. The two ends of the carbon core are equipped with soft nitrile rubber sealing pads, which make the carbon core fit into the filter cartridge with good sealing performance.

2. The loose type activated carbon filter element loads the required activated carbon particles into a specially designed plastic shell, and uses welding equipment to weld the end caps to the two end faces of the shell. Non woven fabric filters for filtering are placed at both ends of the shell to ensure that the carbon core does not drop carbon powder and black water during use. According to customer needs, the shell end cover can be made into different types of connection ports. The interface methods include: flat pressure type, pipeline type (models include 4042, 4044, 4046, etc.).

5、 Double section filter element

Previous section: Precision of polypropylene melt blown filter element 5 μ M

Next section: Particle activated carbon filter cartridge with built-in activated carbon 170g

Material: ABS, PP

Length: 250mm Outer diameter: 70mm Flux: 8L/S Total flux: 6-8T

Activated carbon index: strength>90; Iodine value (mg/g)>950; Methylene blue value (mg/g)>120

6、 Ceramic filter element

Ceramic filter elements, due to the use of pure natural physical materials, will not produce secondary pollution during the use of water purifiers. At the same time, they do not completely remove all kinds of minerals in water like ceramic filter elements in pure water machines. They retain beneficial minerals in water, effectively remove mud, bacteria, rust, never clog, have a long service life, and excellent filtration effect. At the same time, they are not afraid of clogging and can adapt to very poor water quality situations. At present, the ceramic filter element with the highest filtration accuracy internationally is the dual control membrane ceramic filter element, with an average pore size of 0.1 μ M. The water filtered by this filter does not need to be boiled and can be consumed, fully meeting the national standard for direct drinking water.

7、 Resin filter cartridge

Resin is a porous and insoluble exchange material. The resin filter element in the water softener contains millions of tiny plastic balls (beads), all of which contain many negative charge exchange sites that absorb positive ions. When the resin is in a new state, these charge exchange positions are occupied by positively charged sodium ions. When calcium and magnesium pass through the resin storage tank, they come into contact with resin beads and replace sodium ions from the exchange position. Resin preferentially combines cations with strong charges, and calcium and magnesium ions have stronger charges than sodium ions. Replacing sodium cations and then flowing downwards through the resin bed, the water softener sends out soft water. Finally, all resin exchange positions are occupied by calcium and magnesium, and can no longer function.

8、 Titanium rod filter element

The titanium rod filter has excellent performance such as corrosion resistance, high temperature resistance, high strength, easy to ensure filtration accuracy, and easy regeneration; The titanium filter element is formed from titanium powder and sintered at high temperature, so the surface particles are not easy to fall off; The operating temperature in the air can reach 500-600 ℃; Suitable for filtering various corrosive media, such as hydrochloric acid, sulfuric acid, hydroxide, seawater, aqua regia, and chloride solutions such as iron, copper, sodium, etc. It has excellent mechanical properties and can be machined for cutting, welding, and other purposes. It has high compressive strength and a maximum internal pressure failure strength of over 2MPa; Its filtering accuracy is easy to ensure, and even when working under high temperature and pressure, the aperture will not deform. Its porosity can reach 35-45%, the pore size distribution is uniform, the amount of pollutants absorbed is large, and the regeneration method is simple, which can be reused after regeneration.

9、 RO reverse osmosis filter element

Filter element using RO reverse osmosis membrane. Reverse Osmosis Technology: Reverse Osmosis, originally known as REVERSE OSMOSIS, was developed by NASA with the support of multiple scientists from multiple countries, spending billions of dollars, and years of research. The principle of reverse osmosis is to apply a greater pressure than natural osmotic pressure on the side of the raw water, causing water molecules to reverse osmosis from the high concentration side to the low concentration side. Due to the fact that the pore size of reverse osmosis membranes is much smaller than that of virus and bacteria by hundreds or even thousands of times, various viruses, bacteria, heavy metals, solid soluble substances, contaminated organic matter, calcium and magnesium ions, etc. cannot pass through reverse osmosis membranes, thus achieving the goal of softening and purifying water quality.

10、 Stainless steel filter element

Features of stainless steel filter element:

1. Good filtration performance and uniform surface filtration performance for filtration particle sizes ranging from 2-200um

2. Good corrosion resistance, heat resistance, pressure resistance, and wear resistance;

3. Uniform and precise filtration accuracy of stainless steel filter pores;

4 stainless steel filter cartridges have a large flow rate per unit area;

5 stainless steel filter cartridges are suitable for low and high temperature environments; After cleaning, it can be reused without replacement.

Application: Petrochemical, oilfield pipeline filtration; Fuel filtration for refueling equipment and construction machinery equipment; Equipment filtration in the water treatment industry; 7. Pharmaceutical and food processing fields; Rated flow rate 80-200l/min, working pressure 1.5-2.5pa, filtration area (m2) 0.01-0.20, filtration accuracy（ μ m) 2-200 μ M filter material, stainless steel woven mesh, stainless steel perforated mesh, is used for pre stage water removal in heavy oil combustion systems, and can also be used for chemical liquid filtration, with an accuracy of 100um. The filter element material is stainless steel round microporous mesh. Suitable for pre-treatment and post-treatment systems in industrial sectors such as electronics, petroleum, chemical, pharmaceutical, and food. Further purify water with low levels of suspended impurities (less than 2-5mg/L).

11、 Oil filter cartridge

Multiple specifications and materials of filter cartridges, with an accuracy ranging from 0.5 to 80 meters, meet the processing needs of different industries and adapt to various oil products.

12、 Hydraulic oil filter element

Hydraulic oil filter element is mainly used for filtering oil in hydraulic systems, to remove particles and rubber impurities in the hydraulic system, ensure the cleanliness of hydraulic oil, and thus ensure the normal operation of the hydraulic system.

The above is the classification of filter types introduced by Hongjie Water, hoping to be helpful to you.