PTFE Venting Membrane Applied in Gas Sensors

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MS® PTFE Venting Membrane Applied in Gas Sensors Description

Gas sensors not only have high requirements for IP rating, but also have high requirements for air perm to accurately detect the content of some specific gas in the air. Then gas sensors have very high requirements for air perm stability of the membranes. Membrane Solutions’ specially designed for gas detectors have very stable air perm. Then the tolerance of the testing results will be greatly reduced.

Features & Benefits

  • High air flow rates-to ensure adequate venting, pressure equalization and reduce the stress on the sealing strip
  • Accurately detect the content of some specific gas in the air.
  • Preventing contamination / blocking ingress of water, automotive fluids, dust and particulates
  • Lower materials and production costs, fewer warranty claims


Adhesive series

Part No. Series VE8 Series VE7 Series VE9
Typical airflow (DP = 70 mbar) 3300 ml/min/cm2 290 ml/min/cm2 1150 ml/min/cm2
Membrane characteristic Oleophobic
Membrane color White Black White
Backing material PET nonwoven None
Adhesive type Acrylic Silicone
Typical thickness 0.26 mm 0.34 mm 0.32 mm
Mounting location Interior of the housing Interior or exterior of the housing


Screw-in Series

Part No. PMF100318/ PMF100319 PMF100320/ PMF100321 PMF100391/ PMF100392 PMF100519/ PMF100520  PMF100444 PMF200542
Water entry pressure >0.6bar/30 sec >0.6bar/30 sec >0.3bar/30sec >0.3bar/30sec >0.3bar/30 sec >0.3bar/30 sec
Typical airflow 450ml/min (dp=70mbar) 450ml/min (dp=70mbar) 2500ml/min (dp=70mbar) 2000ml/min (dp=70mbar) 1700ml/min (dp=70mbar) 16ml/min (dp=12mbar)
membrane characteristic Oleophobic Oleophobic Hydrophobic Oleophobic Oleophobic Oleophobic
Installed height 5.6mm 5.6mm 5.6mm 5.6mm 11.5mm 9.7mm


Snap-in Series

Part No. Water Entry Pressure Typical Airflow(dp=70mbar) Membrane Characteristic Installed Height
VE0006GSV >0.3bar/30sec 35ml/min Oleophobic 1.5 mm

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