Vent Plug | Packaging: Industrial Chemicals

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Vent Plug

IPRO vent plug is able to resist surfactant corrosions while allowing air and gas molecules to pass through the membrane, which equalizes pressure, avoids packaging deformation, as well as prevents leakage of industrial chemicals during packaging and transportation; this improves product safety, ensures the safety of operators, and protects the environment.

Technical Data

    • Membrane: Oleophobic ePTFE
    • Substrate: Polyolefin
    • Housing material: PP or HDPE
    • Color available: White
    • Oil Rating: 7 Minimum
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Product Application : Vent Plug


When membrane and plastic parts are weldable together by ultrasonic or thermal method, a vent plug is created. With simple press-fit design, easy installation, and a long service life, it is suitable for large volume packaging (greater than 5L). Also, it has an integrated design which ensures tightness and proper air permeability, while shielding contamination from external environment, and greatly improves reliability.


With world’s leading technology, breathable membrane designed by IPRO laboratory that’s suited to industry specific products and industrial chemicals’ packaging needs, can be integrated into the injection molded parts of the vent plugs to form standard parts. The models include D10/D15/D17/D38. IPRO also provides customized sizes and shapes for special needs.

Product Technical Specifications:

Product Typical D10 Typical D15 Typical D17 Typical D38
Membrane Oleophobic ePTFE Oleophobic ePTFE Oleophobic ePTFE Oleophobic ePTFE
Substrate Polyolefin Polyolefin Polyolefin Polyolefin
Housing material PP HDPE HDPE HDPE
Typical air flow 100ml/min@7kPa 800ml/min@7kPa 1600ml/min@7kPa 2500ml/min@7kPa
WEP(60s) >80kPa >60kPa >50kPa >20kPa
Color available White White White White
Oil Rating 7 7 7 7

Key Features
  • Easy Installation
  • Long Service Life
  • Various Sizes
  • Excellent Chemical Resistance
  • Large Volume of Air Flow
  • Pressure Equalization
  • Leakproof

  1. Be sure to check if the size of the vent plug is consistent with that of the cap. The tightness of the product depends on the material composition, structural design, sealing stability of the casing and the vent plug as well as the physical and chemical properties of the liquid in contact.
  2. PP and PE is recommended for casing material.
  3. Please avoid direct contact with or pressing against the membrane, avoid contact between the membrane and hard objects, and avoid placing the membrane in a high-temperature area. Improper operation may damage the breathable membrane and cause leakage.

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