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L37 Series Filter Cartridges

L37 Series Filter Cartridge is made of hydrophobic PTFE membrane, inherently hydrophobic PTFE membrane can ensure the sterilizing performance in different humidity environment. The oxidation resistant PP components offer superior oxidation and high temperature resistance. Reinforced core makes the filter cartridge higher pressure resistance, withstand in-line steam sterilization and autoclave, it is suitable for fermentation, pharmaceutical and other biotechnology applications.


  • Inherently hydrophobic PTFE membrane
  • High temperature resistance
  • Oxidation resistant hardware
  • High-flow and low pressure drop
  • Enhanced steaming resistance
  • 100% Integrity tested


  • Process venting
  • Compressed air
  • Gas purification
  • Fermentation feed air


  • Outer Diameter 69 mm
  • Length 5”, 10”, 20”, 30”, 40”

Material of Constructions

  • Media. Hydrophobic PTFE
  • Support. PP/PET
  • Cage/End Cap. High temperature resistance PP
  • Core. High temperature resistance PP/SS
  • Adapter. PP with insert

Pore Size

  • Gas 0,01 μm
  • Liquid 0,22 μm


Max Operating Temperature 100 °C
Max Operating DP 5.2 Bar @ 20℃
  2.4 Bar @ 80℃
SIP 135℃/30min, 150 cycles 1.0 Bar @ 135℃
Maximum Forward 0.3 Bar @ 142℃
Steam Sterilization 135℃/30min, 150 cycles 1.0 Bar @ 135℃
Maximum Reverse 0.5 Bar @ 125℃
Steam Sterilization 0.2 Bar @ 142℃


  • Manufactured in a clean room environment
  • Manufactured according to ISO9001:2015 certified Quality Management System
  • Materials of construction comply with FDA requlations for food and beverage contact use as detailed in the US Code of Federal Regulations 21CFR
  • 100% Integrity Tested
  • Individual element is tracked by serial number

Integrity Test Parameters

Diffusion Flow(DF) ≤ 20ml/min @ 1035mbar(60/40 IPA/Water)
Water Instrusion(WIT) L37P ≤ 0.38ml/min @ 2500mbar L37W ≤ 0.75ml/min @ 2500mbar

Ordering Information

To place an order, please make up the product code of the configuration you need, guided by the tabular data and observing the order of the values in the code according to the picture. After that, click the Order button and enter the received code in the Product field. Fill in the remaining fields of the Order form and click Submit. Our managers will contact you soon.

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