SRF
Microelectronics, Food & Beverage, Water Treatment
Depth Filters
Polyester (PE)
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Acid & Alkali Resistant for
Harsh Chemical Filtration
This series of Sintered Filter Cartridges is manufactured from premium PE or PA
powders using advanced sintering technology, creating a robust porous structure
with uniform pore distribution. The cartridge exhibits exceptional resistance to strong
acids, strong alkalis, and most organic solvents, coupled with high temperature
tolerance and superior mechanical strength. Ideal for demanding filtration applications
including oilfield injection water purification, electroplating solution filtration, chemical
processing, and decolorization/carbon removal in pharmaceutical and injectable oil
production. The sintered construction ensures reliable performance in harsh
environments where conventional filters fail.
Filtration of oilfield reinjection water, well-flushing fluids, etc., to remove solid particles and meet water injection standards.
Circulating filtration of various electroplating solutions to remove impurities and improve electroplating quality.
Filtration and purification of highly corrosive chemical raw materials, solvents, and acid-alkali solutions.
Decolorization and decarbonization filtration of fatty oils for injection.Removal of activated carbon and precision filtration during bulk drug production.
Precision filtration of environmental protection wastewater, printing inks, high-purity chemicals, etc.
Excellent Chemical Resistance
Resistant to strong acids, strong alkalis, and erosion from most organic solvents, offering an extremely wide chemical compatibility range.
High-Temperature Resistance
The inherent properties of PE/PA materials provide good temperature resistance, making them suitable for higher-temperature process environments.
High Mechanical Strength
The sintering process creates a robust filter structure capable of withstanding high-pressure differentials without deforming or damage.
Uniform Pore Size Distribution
Powder sintering technology produces stable and uniform microporous channels, ensuring reliable filtration accuracy.
The porous three-dimensional structure enables effective depth filtration with a high dirt holding capacity.
FILTER MATERIALS | PE, PA |
MAX. TEMPERATURE | PA Filter Cartridge:<110 ℃ PE Filter Catridge:<80 ℃ |
MAX. DIFFERENTIAL PRESSURE | 4.0 bar (positive) |
MATERIAL | LINING | NO. of FILTERS | LENGTH(in) | CONNECTION | SEAL | INLET / OUTLET |
304 | Without | 1 | 10'' | 222 | Silicone | Tri-Clamp DN25 |
316 | PTFE | 3 | 20'' | 226 | EPDM | Tri-Clamp DN40 |
WCB(Mild Steel) | FPA | 4 | 30'' | M20 | Viton | Tri-Clamp DN50 |
PPH(Homopolymer PP) | Fluorine | 7 | 40'' | 3M | TEV | Flange DN25 |
Butyronitrile | 25 | PARKER | Butyronitrile | Flange DN40 | ||
PE | 150 | PALL | PTFE | Flange DN50 | ||
PHOSPHOR | Flange DN80 | |||||
38-5 | Flange DN150 | |||||
DIN Flange DN40 |
What is a sintered PE/PA filter cartridge mainly used for?
A sintered PE or PA filter cartridge is mainly used for filtration of chemically aggressive liquids and process streams containing acids, alkalis, solvents, oils, or suspended solids. Typical applications include electroplating solutions, chemical processing, oilfield fluids, pharmaceutical and fatty-oil purification, wastewater treatment, and other demanding industrial filtration processes.
What is the difference between PE and PA sintered filter cartridges?
Both PE and PA use a porous sintered structure for depth filtration, but their temperature resistance differs. The listed maximum operating temperature is below 80°C for PE cartridges and below 110°C for PA cartridges. Final material selection should also consider chemical compatibility, mechanical strength, process temperature, and the specific fluid being filtered.
Why is a sintered filter suitable for high dirt-loading applications?
The sintered porous structure provides a three-dimensional filtration path that captures contaminants throughout the depth of the filter rather than only on the surface. This helps distribute the solids load, provides high dirt-holding capacity, and supports more stable filtration performance when processing fluids with relatively high levels of suspended particles or impurities.
Can PE or PA sintered cartridges be used with strong acids, alkalis, and solvents?
These cartridges offer good resistance to many acids, alkalis, and organic solvents, but compatibility depends on the exact chemical, concentration, operating temperature, exposure time, and cartridge material. PE and PA do not have identical chemical resistance, so the complete process conditions should be reviewed before selecting the appropriate material.
What operating pressure and temperature limits should be considered?
The listed maximum positive differential pressure is 4.0 bar. The temperature limit depends on the selected material, with PE specified below 80°C and PA below 110°C. Because pressure resistance can change with temperature and chemical exposure, actual operating conditions should be confirmed before final cartridge selection.
How do I choose the correct sintered filter cartridge for my process?
Selection should consider process fluid, chemical concentration, operating temperature, required filtration precision, solids loading, flow rate, differential pressure, cartridge length, connection type, and seal material. For replacement applications, providing the existing cartridge dimensions and connection details is the most reliable way to confirm compatibility.