PES Pleated Filter Cartridge


A kind of membrane pleated cartridge made from Polyethersulfone.

Polyethersulfone Membrane Filter or PES pleated filter cartridge is another type of membrane filter cartridge. It is made from a sulfonated polyethersulfone polymer. Unlike depth cartridge filters, membrane cartridge filters use surface area to block contaminants. Higher retention efficiency can be offered by membrane filter cartridges.

One feature of the PES pleated filter cartridge is the asymmetrical pore structure and a higher surface area design (0.75 m2/10-inch length), offering a much higher dirt loading capacity and larger effective filtration area than symmetrical membrane pleated cartridge filters.

Excellent flow rates, a long service life, a wide range of chemical compatibility, and the absence of additional surfactants that cause extractables are all features of PES pleated filters. PES membrane filter cartridges are the best option for systems that demand components with consistent, effective filtration and high reliability.

Brother Filtration adopts a non-shedding membrane, with absolute fixed pore ratings of 0.1, 0.2, 0.45, 0.65, 0.8, and 1.2µm, providing excellent particle removal and bacteria retention capabilities. With high-standard membrane materials from qualified suppliers, Brother Filtration manufactures the PES filter cartridge. And the cartridges are manufactured, flushed, tested, and packaged in a class 1.000 clean room environment, that enables them to suit the food & beverage industry.

With its absolute rate at >99 9% efficiency, the PES filter cartridge is suitable for electronics industry terminal filtration. And this cartridge has good resistance to heat, acid, and akali, which makes it really fit the chemical industry. Also, a proprietary highly asymmetric PES membrane ensures high contaminant retention capacity and flow rates.

The high dirt-holding capacity and asymmetrical pore structure, the high-standard producing process, the high filtration accuracy rate, and the wide chemical compatibility all contribute to the great PES membrane pleated filter cartridge, which can be applied to many different industries.


Excellent raw materials and a high standard of production process create a high-quality PES membrane filter of Brother Filtration. And that’s what makes our products so outstanding and so well recognized.

  • Manufactured, flushed, tested, and packaged in a class 1.000 clean room environment
  • The thermal bonding process eliminates adhesives
  • PES membrane filters can be regenerated for extended service life
  • High purity polypropylene hardware construction-inert
  • Asymmetrical pore structure

With its amounts of advantages, the PES membrane can be applied to many different industries and benefits applications with the high-purity standards.

  • Absolute rated at >99 9% efficiency
  • Good heat resistance, acid, and alkali resistance
  • Be able to be fast flushed with high purity water
  • Wide chemical compatibility
  • High contaminant retention capacity and flow rates
  • The high surface area of naturally hydrophilic PES membrane
  • Low initial pressure losses
  • Consistent and reliable performance


Filter Media Highly Asymmetric Polyethylene
Hardware Polypropylene
Core Polypropylene
Supporting Material Polypropylene
Endcap Polypropylene
Gasket Silicone, Buna-N, Viton, EPDM. Teflon



Length 9.75″~40”
OD 2.67″ (68mm)


Operation conditions

Maximum Differential Pressure 75psid(51 bar)@68F(20℃)
4psid(2.8bar) @150F(65℃)
Recommended Change Out Differential Pressure 35psid(2.4bar)

Order Information

BDTX -PT -0020 -10 -DOE -E
Product Material Micron Rating Length Connection O-ring
Delta Max PES Membrane Filter PES 0004=0.04μm
9.75=9.75 inch
10=10 inch
20=20 inch
30=30 inch
40=40 inch
DOE=No Symbol
3=SOE with 222 O-rings, Flat Closed End
8=SOE with 222 O-rings, Fin End
7=SOE with 226 O-rings, Fin End
Notice: Due to the filter having variety in design, please contact BROTHER sales for more information.
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