PES Pleated Filter Cartridge is made by asymmetric gradient aperture membrane and PP components through advanced thermal bonding technology under Class 100 environment. The filter cartridge 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 membrane: Hydrophilic PES membrane

Support/Drainage: PP

Core/Cover/End cover/End caps: PP

Sealed leads/Fins: PP with stainless steel inside

O-Ring: 222,226 silicon rubber etc.

Sealing technology: Thermal bonding without adhesives

Characteristics and features

• Excellent high-tem resistance and extensive chemical compatibility.

• 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.

• Low protein adsorption to make sure the maximum recovery of target active ingredients.

• The filter membrane has a gradient aperture structure for pre-filtration with large flow rate ,low pressure difference and long service life .

• Production and usage are traceable.

Technical specifications and operating parameters

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 vaccines and genetically engineered products.

• Sterilization filtration of eye drops, diagnostic reagents, etc.

• 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.

Adapter Style

Ordering information

LENGE, established in 1998, is a full-service high-tech enterprise specializing in integrated operations including R&D,

manufacturing, distribution, testing, and technical support. The company focuses on constructing an eco-industrial

chain for purification systems through its diversified product portfolio, including microporous filtration membranes,

pleated filter cartridges, air filtration solutions, purification equipment, and complementary engineering products.

Through sustained technological innovation and quality management, LENGE has achieved triple certifications in

ISO9001 (Quality), ISO14001 (Environmental), and ISO45001 (Occupational Health & Safety). The enterprise holds 37

authorized patents and leads multiple provincial-level scientific research initiatives, supported by its provincial

Precision Filtration Engineering Technology Research Center. With proprietary core technologies and advanced R&D

capabilities, LENGE has earned national recognition as a "Specialized and Innovative 'Little Giant' Enterprise,"

highlighting its industry leadership in precision filtration and purification solutions.