Sintered mesh filter element supplier from China

PRODUCT DESCRIPTION

Sintered Mesh Filter Element

Stainless steel mesh sintered filter element is a high-performance metal porous filter element. It uses a special manufacturing process to firmly combine multiple layers of stainless steel wire mesh with different pore sizes to form an overall structure with specific filtering accuracy, high strength and excellent performance.

The stainless steel mesh sintering process is usually composed of multiple layers (such as protective layer, control filter layer, dispersion layer, support layer) of stainless steel wire mesh with different mesh sizes (i.e. pore sizes) stacked together. The core lies in sintering. These stacked metal meshes are heated under high temperature, high pressure and protective atmosphere (such as vacuum or inert gas). In this process, the contact points of the metal mesh melt and diffuse, and finally fuse and bond together firmly to form an integral, rigid three-dimensional mesh porous structure. Austenitic stainless steel is mainly used, the most common ones are 304, 304L, 316, 316L. These materials have excellent corrosion resistance, high temperature resistance, high strength and good processing performance, and are suitable for various harsh environments.

The core working principle of the stainless steel mesh sintered filter element: By selecting a combination of wire meshes with different mesh sizes and the sintering process, the absolute filtration accuracy of the filter element (usually between 1 micron and 300 microns) can be precisely controlled to ensure that impurities above a certain size are intercepted. The internal support layer and dispersion layer provide strong mechanical support, allowing the filter element to withstand high pressure differences, while also helping to evenly distribute the fluid and reduce local blockages.

Sintered Mesh Filter Element

Sintered Mesh Filter Element Sintered Mesh Filter Element Sintered Mesh Filter Element

Key performance advantages of stainless steel mesh sintered filter element :

1. High strength and rigidity: The overall structure after sintering has extremely high mechanical strength and rigidity, can withstand high pressure, high flow rate and frequent backwashing, and is not easily deformed or damaged.

2. High filtration accuracy and stability: The pore size is uniform and stable, the filtration accuracy is reliable, and it can effectively intercept tiny particles.

3. Excellent temperature resistance: Stainless steel material enables it to work stably in high temperature (usually up to 400°C or above, 316L or even higher) and low temperature environments.

4. Excellent corrosion resistance: Stainless steel (especially 316/316L) can withstand a variety of acids, alkalis, salts and organic solvents, and is suitable for corrosive media.

5. Cleanability/Regenerability: This is one of its biggest advantages. Filter cake or blockages intercepted on the surface can be effectively removed by high-pressure gas backwashing, high-pressure liquid backwashing, ultrasonic cleaning, chemical cleaning, etc., with good performance recovery and extremely long service life (much longer than disposable filter elements).

6. No medium falling off: The sintered structure is firm, the metal fiber will not fall off, and there is no pollution to the filter medium. It is especially suitable for occasions with extremely high requirements for cleanliness (such as food, pharmaceuticals, and electronics).

7. Good permeability: The porosity is high and regular, and the resistance to fluid passage is relatively small.

8. Non-magnetic (austenitic stainless steel): Suitable for applications where magnetic contamination is not permitted.

9. Weldability: Easy to connect to metal pipes or equipment by welding and other means, with good sealing.

Stainless steel mesh sintered filter elements and stainless steel pleated filter elements are both important metal filter elements, but they have significant differences in structure, performance characteristics and application scenarios. Understanding these differences is crucial for correct selection. The following is a detailed comparison of the two:

characteristic	Stainless steel mesh sintered filter element	Stainless steel pleated filter element
Core Structure	The multi-layer stainless steel wire mesh is sintered and melted under high temperature and high pressure to form an overall rigid three-dimensional porous structure. The layers are firmly bonded and there is no relative displacement.	Single or multiple layers of stainless steel wire mesh or metal felt are folded into a wave shape to increase the filtration area. The layers are usually not fused together and may be fixed by a frame or end caps.
Filtration mechanism	Absolute surface filtration (screen filtration): mainly relies on the outermost precision mesh to intercept particles, and particles larger than the aperture are retained on the surface.	Mainly deep filtration (some nominal accuracy products are close to surface filtration): particles are trapped in the pores or surface of the filter material. The accuracy stability is relatively poor.
Filtration accuracy	High precision & high stability: The absolute filtration accuracy (1μm - 300μm) can be precisely controlled through the mesh selection and sintering process, and the pore size is uniform and stable.	Medium accuracy & variability: The accuracy range is wide (usually 5μm - 100μm), but most of them are nominal accuracy (nominal accuracy). They are easily deformed under pressure, and the accuracy stability is not as good as sintered filter elements.
Mechanical strength/rigidity	Extremely high: The overall structure formed by sintering has extremely high compressive and bending strength, can withstand high pressure difference, high flow rate and frequent recoil, and is not easy to deform.	Medium: Relying on folding structure and skeleton support, the overall rigidity is not as good as sintered body. It is easy to deform under high pressure or strong recoil, affecting the accuracy and life.
Pressure resistance	Very high: can withstand operating pressures and pressure differences of tens of Bar or even higher.	Medium to low: The pressure resistance is relatively low. High pressure may easily lead to deformation of the filter material or damage to the supporting frame.
Cleanability/recyclability	Excellent: The filter cake intercepted on the surface is easy to remove and can be efficiently and thoroughly regenerated by high-pressure backflushing, backwashing, ultrasonic, chemical cleaning, etc., with good performance recovery and extremely long service life.	Limited: Deeply trapped particles are difficult to clean completely, especially when they are deeply blocked. The regeneration effect is poor and they are mostly used once or for a limited number of times.
Pollution holding capacity	Relatively low (surface filtration characteristics): mainly relies on surface interception, and the dirt holding capacity depends on the surface area.	Higher (depth filtration characteristics): The internal pores of the filter material can accommodate more pollutants and have a larger dust holding capacity.
Flow rate/resistance	With the same precision and size, the initial flux is relatively low (the pores are more precise and regular), but the resistance rises relatively gently (not prone to deep clogging).	The initial flux is higher (the folded structure provides a larger effective area), but the resistance rises faster as the pollutants accumulate in the deeper layers.
Temperature resistance	Excellent: Stainless steel (such as 316L) is inherently resistant to high temperatures, has a stable sintered structure, and can usually withstand temperatures above 400°C for a long time.	Good: Depends on the stainless steel material, but the folding structure and adhesive (if any) may limit its long-term use at very high temperatures (e.g. >300°C).
Corrosion resistance	Excellent: Mainly depends on the selected stainless steel grade (304/316/316L), no other materials introduce corrosion points.	Good: Also depends on the stainless steel material, but if adhesives or non-metallic skeletons are used, corrosion resistance weaknesses may be introduced.
cost	The initial cost is relatively high: due to the large amount of materials used and the complex process (sintering).	The initial cost is low: the material consumption is relatively small and the manufacturing process is relatively simple.
Service life	Very long: Thanks to excellent cleanability and high strength, it can be used repeatedly for many years. The total cost of ownership (TCO) may be lower.	Shorter: Difficult to regenerate, usually replaced regularly as a consumable. Higher cost for long-term use.
Key Benefits	High precision, high strength, high pressure and high temperature resistance, corrosion resistance, can be thoroughly cleaned and regenerated, ultra-long service life, no medium shedding, and high cleanliness.	Large initial flux, high dirt holding capacity, low initial cost, compact structure (large filtration area per unit volume).
Main Disadvantages	High initial cost, initial flux may be lower than pleated filter element at the same size, relatively low dirt holding capacity (surface filtration).	Poor accuracy stability, limited pressure and recoil resistance, difficult to regenerate completely, short service life, and possibly higher long-term costs.
Typical application areas	Harsh working conditions, high-value fluids, and long life requirements: Petrochemical/Chemical: High-temperature and high-pressure raw oil/gas filtration, catalyst recovery, and highly corrosive chemical filtration Pharmaceutical/Biological: Aseptic filtration, high-purity water (WFI), fermentation broth, and terminal liquid medicine fine filtration Food and beverage: Terminal precision filtration (wine, beverages, and edible oil) High-purity electronic chemicals/gas filtration High-temperature molten metal filtration (aluminum, zinc) Nuclear industry, aerospace critical systems require frequent backwashing	Large flow pretreatment, medium precision, cost-sensitive, non-extreme working conditions: Industrial water treatment: cooling water, circulating water, pretreatment Lubricating oil/hydraulic oil system: oil tank breather, return oil filtration (medium and low pressure) Compressed air system: particle filtration after oil and water removal Central air conditioning system water filtration Pretreatment liquid filtration of coating line Coarse filtration/prefiltration of large flow process water Occasions requiring large flow but strict pressure drop restrictions

Sintered Mesh Filter Element

Sintered Mesh Filter Element Sintered Mesh Filter Element Sintered Mesh Filter Element

1. For ultimate performance, long life, and resistance to harsh environments: choose sintered filter elements.

High and stable absolute filtration accuracy is required.

The working conditions involve high temperature, high pressure and highly corrosive media.

The filter element is required to be able to be repeatedly and thoroughly cleaned and regenerated to reduce long-term replacement costs and downtime.

The cleanliness requirements for the filtration products are extremely high (such as no fiber shedding).

The budget allows for a higher initial investment.

2. Focus on initial flow rate, dirt holding capacity, cost, and relatively mild working conditions: select pleated filter element.

Handles large flow rates and is sensitive to initial pressure drop.

The filtering accuracy requirement is acceptable with a medium nominal accuracy.

The operating pressure and temperature are in the medium range.

The media is relatively clean or used as a pre-filter with low contaminant load.

The budget is limited and regular replacement of filter elements is accepted as consumables.

Space is limited and high filtration area per unit volume is required.

Simply put: sintered filter element is a solution for "high performance, long life, high investment and high return"; pleated filter element is a common choice for "economical and practical, large flow, easy to replace".

The main application areas of stainless steel mesh sintered filter element :

Petrochemical: catalyst recovery, crude oil filtration, gas purification, tail gas recovery, acid/alkali/solvent filtration.

Pharmaceuticals and bioengineering: liquid medicine filtration, air sterilization filtration, fermentation liquid filtration, pure water/water for injection (WFI) system.

Food and Beverage: Precision filtration of alcohol, beverages, edible oil, syrup, milk and purified water.

Water treatment: industrial circulating water, wastewater treatment, seawater desalination pretreatment, ultrapure water system security filtration.

Environmental protection: flue gas dust removal, dust recovery, and wastewater precision filtration.

Machinery and Metallurgy: Hydraulic oil, lubricating oil, cutting fluid, coolant filtration, metal melt filtration (such as aluminum liquid).

Energy: Nuclear industry, fuel cell gas purification.

Aerospace: Fuel and hydraulic system filtration.

Electronics: High-purity gas and high-purity chemical transmission and filtration.

Stainless steel mesh sintered filter element is a kind of precision metal filter element which is made by melting and consolidating multiple layers of stainless steel wire mesh by high temperature sintering process. It has precise filtration aperture, high strength, high temperature and high pressure resistance, corrosion resistance, can be repeatedly cleaned and regenerated, and has a long service life. It is an ideal choice to solve the needs of high temperature, high pressure, corrosion, high cleanliness or long life filtration, and is widely used in key filtration links in many industrial fields. Dashang Wire Mesh specializes in customized production of stainless steel mesh sintered filter elements, and weighs and selects according to the customer's specific filtration needs, working conditions and cost budget to provide the best solution. Contact us Sales@dswirecloth.com