Plug-in venting solution for housings
OxySeal pressure compensation units

OxySeal® pressure compensation units with hydrophobic membranes are used for ventilation purposes where water needs to be reliably retained, and a gas exchange or pressure compensation is needed at the same time. OxySeal pressure compensation units are a plug-in solution for housings having inverted cylindrical openings. Each unit consists of a hydrophobic track-etched membrane that has been injection-molded with a thermoplastic elastomer seal, which keeps the unit in the opening without any additional anchor or fastener. OxySeal units are customizable according to the specific requirements of the customer, including the selection of the dimensions, membrane technology, and the form of the pressure compensation elements.

Key benefits

  • 100% Free of PFOA: Compliant with (EC) 1907/2006 REACH / Regulation (EU) 2019/1021 POP
  • Single unit combining membrane and sealing ring
  • Simple plug-in assembly
  • Suitable for automation
  • 100% visual control if requested

Technical specifications

Standard sizes:

a) Outer dia. Ø [mm]6.21312
b) Height [mm]4.653

Note: Other dimensions are available on request

Standard Product Sizes (mm)

Oxyseal standard sizes

Materials offered:

  • Sealing body: Thermoplastic elastomer
  • Membrane: PET with hydrophobic coating (with or without lamination)

Available Options

Temperature range (TPE high temperature)– 40 …. + 150° C
Temperature range (TPE standard temperature)– 40 …. + 120° C
Hydrophobic/ Oleophobic treatmentGrade up to 7.5; AATCC TM 118
– Salt spray resistance test2According to IEC 60068-2-52, based on
validation by the customer
– Temperature resistance test1In accordance with ISO 16750-4
– Ice water shock test2In accordance with ISO 16750-4
– Climate resistance test1In accordance with ISO 16750-4
– Chemical resistance test1According LV124/ ISO 16750-5
– IP Protection1IP 64/65/66/67/68, according to DIN 40050

1 Testing in progress

2 Based on customer validation

Membrane technologies available

Unique-Mem® track-etched membrane technology


RoTrac® track-etched membrane technology

Fiber Membrane

Fiber-based membrane technology

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