0.1 0.2 micron Stainless Steel Compressed Air Gas Filter with PTFE cartridge

Working Principles of Compressed Air Gas Filter 

The stainless steel compressed air filter is mainly composed of a shell (usually made of 304 or 316L stainless steel, with mirror polished inner and outer surfaces to shrink residues and mix them up), a filter element (a focal filter element, using multi-layer fibers, sintered metal or membrane materials, capturing pollutants through blocking, inertial collision, diffusion and other mechanisms), and a sealing device and a drainage device (such as an automatic drain valve).

The working principle is that compressed air containing impurities (such as dust and moisture) enters the filter and is usually first filtered through a primary filter or baffle for coarse filtration and air-water separation. Then, the air passes through the filter element, and pollutants such as particles and droplets are effectively retained by the filter material. Clean air is discharged from the outlet, and the retained liquid and impurities are collected and regularly discharged through a drain valve;

Production process Compressed Air Gas Filter 

The production process of stainless steel filters mainly involves the following key points:

1. Design and Review : Determine the specific parameters of the product (size
2. Raw material preparation and processing : Qualified stainless steel plates/pipes, welding and other processes are adopted to produce the shell, and the inner and outer surfaces are polished (such as mirror polishing, electrochemical polishing).
3. Filter element creation : This is the key issue; The filter material may undergo folding process to increase the filtering area, and then be made into a filter element through gluing, fixing on the skeleton and other steps.
4. Assembly and Testing: Assemble the filter element, housing, and other components together and conduct a pressure test to ensure that there is no leakage and that the performance meets the standard under the specified pressure.

Product advantages of Compressed Air Gas Filter

• Corrosion resistance and durability: Stainless steel material (especially 316L) has good corrosion resistance, high mechanical strength, long service life, and can adapt to harsh environments (such as high temperature and chemical substances).
• High filtration accuracy and compliance: It can efficiently remove small particles, moisture, and even bacteria (with a sterilization rate of up to 99.99%), providing clean compressed air.
• Easy to maintain : The filter element can usually be cleaned (such as blowback, ultrasonic cleaning) or replaced , and department models are equipped with automatic drain valves and pressure differential indicator devices for easy maintenance!
• Wide applicability : High temperature resistance, multiple materials available, continuous selection, and customization to adapt to mixed working conditions.

Maintenance Guide

Regular maintenance is crucial for ensuring the compliance and lifespan of the packaged filter - Regular Drainage : For manual drainage types, it is recommended to open the drainage valve regularly (weekly) to release condensate water! - Filter element detection and replacement : Regularly (such as quarterly) check the filter element, and clean it (such as using compressed air or gentle cleaning agents) or replace it based on the pressure difference indication or actual confusion situation (usually recommended for 3-6 months, depending on the working conditions). - Collective testing : Regularly check the sealing of each continuous part , and maintain the cleanliness of the appearance of the setting;

📍 Application of Compressed Air Gas Filter

Stainless steel compressed air filters are widely used in the following industries: -The food and biological products industry requires sterile compressed air for material transportation and the power industry to handle corrosive gases and protect critical equipment. Semiconductor industry : providing ultra clean compressed air and preventing confusion of precision components; -Automotive manufacturing, mechanical manufacturing: protecting pneumatic tools, cylinders, and other settings; -Aerospace and shipbuilding: Used for gas filtration with high pressure and reliability requirements.

🔩 Customized services and obstruction management

*Customized Services : Suppliers can usually provide customization as needed, including additional calibers (such as DN15-DN200 and above), additional pressure ratings (such as high pressure up to 35MPa or higher), specific interface forms (such as quick installation, special filter element materials (such as PTFE, 316L stainless steel sintered felt), and working temperatures, etc. *!

*Common Malfunction Management : - Poor filtering results : It can be caused by clogged filter cartridges, untreated gas, excessive flow, or reversed inlet and outlet connections. Should check and replace the filter element, add pre filtration, and verify the direction of inlet and outlet. - Sudden decrease in flow rate : It can be caused by valve not fully open, low intake pressure, seal ring leakage, and piping leakage! Valves, seals, and pipelines need to be inspected; - Significant increase in pressure drop *: This usually indicates that the filter element is most congested, there are too many impurities in the intake, and the voluntary drainage valve is blocked or installed at an angle! The condition of the filter element, intake quality, drainage valve function, and installation level should be checked!

❓ FAQ (Frequently Asked Questions)

How to choose 304 and 316L stainless steel materials? 

304 stainless steel is suitable for most typical industrial environments and has high cost-effectiveness. 316L stainless steel, due to its molybdenum content, has better corrosion resistance (especially against chloride corrosion) and is suitable for high humidity, high chloride, strong acid and alkali, or high hygiene requirements (such as pharmaceuticals, marine environments, chemical contact);

What is the replacement cycle for filter cartridges? 

The filter replacement cycle depends on the actual usage environment, gas cleanliness, and filtration accuracy; Usually recommended: coarse filter cartridges may take 6-12 months, fine/ultra-fine filter cartridges (such as oil and bacteria removal) can take 3-6 months, but the final result depends on the pressure difference indication or actual gas quality details ;

Can filters be steam sterilized?

Many stainless steel filters (especially 316L material and corresponding filter elements, such as PTFE) support steam sterilization (such as withstanding saturated steam at 121 ℃ and above), but they need to be dignified and follow the temperature, pressure, and time parameters provided by the manufacturer (such as 20-30 minutes each time)!

How to choose the filtering accuracy?

The selection should be based on the backend settings or process requirements for air quality; Usually, pneumatic tools can be selected from coarse filtration or medium precision! Precision instruments and spraying require medium or fine precision! Food and pharmaceuticals, aseptic manipulation, respiratory gases, etc. require ultra fine precision (such as 0.01 μ m) to remove oil mist and bacteria!

I hope the above information can help you scan stainless steel compressed air/gas filters clearly. If you have more detailed manipulation scenarios or additional requirements, it is recommended to directly consult relevant suppliers for detailed skill plans and selection suggestions;