LENGE Nylon Pleated Filter Element

  • Status: Avai

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 Nylon pleated filter element is made by natural hydrophilic nylon membrane and PP components through advanced hot melt sealing technology under Class-100 environment. The filter element meets the technical requirements of GB/T34244-2017 of the People's Republic of China and without any adhesives or surfactants.

Material of filter element components:
Filter material : Nylon Membrane

Supports/Diversion : PP

Core/Cover/End cover/End caps : PP

Sealed leads/Fins : PP,Built in stainless steel

O-Ring : 222,226 silicon rubber etc.

Sealing technology : Hot melt without adhesives


Characteristics and features


  • Excellent high-tem resistance and alkali resistance.

  • All the compositions reach up to the requirement of the biological testing characteristics of USP Class 6 plastic products at 121℃ and the food contact materials listed in the relevant regulations of Chapter 21 of the Federal Regulations of the United States (CFR). They also conform to the requirements of China's "Standard for Hygienic Safety Evalution of Equipment and Protective Materials in Drinking Water" (2001) for drinking water transport and distribution equipment.

  • The sampling of filter element successfully passed the bacterial challenge test required by regulations, LRV≥7.Integrity can be maintained after repeated high-pressure disinfection.

  • Each filter element should pass the integrity test before leaving the factory. The limitations of integrity testing were correlated with the results of bacterial challenge experiments.

  • It is manufactured under ISO 9001 and ISO 14001 systems and Class 100 environment.

  • Natural hydrophilicity, easy to wet and fast to test integrity.

  • High tensile strength, suitable for applications with high impurity content and high viscosity.

  • Production and usage are traceable.



Technical specifications and operating parameters



Diameter: 2.75"(69 mm)

Length: 5"/10"/20"/30"/ 40" etc.

Filtration area

Single 10" filter element is about 0.65m²


Testing The filters without pre-washing . After 24 hours immersion in water, the dissolution was less than 30 mg/10" filters.

Minimum Bubble Point of Integrity Test Data

0.22μm: > 0.25MPa in Water

0.45μm : > 0.18MPa in Water

Other options:0.1μm,0.65μm

Conditions of steam sterilization and hot water sterilization

Sterilization temperature: hot water 85℃

Steam in place 121 ℃/30 min,more than 15 times

Maximum pressure difference and temperature

Maximum operating temperature: 85 C/0.2 MPa;  25 ℃ (≥ 0.4 MPa)

Typical flow rate (Water, 20℃)






Typical application


  • Sterilization filtration of LVP, fine needle, freeze-dried and spray dried drug.

  • Sterilization filtration and Mycoplasma removal filtration of animal serum, liquid medium, buffer solution, supplement water, etc..

  • Sterilization filtration of various solvents in pharmaceutical industry.

  • Sterilization filtration of various process water and pharmaceutical water

  • Terminal filtration of bottled water, draft beer, wine, yellow wine, soft drinks, syrups, etc. in the food and beverage industry.


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