Pressure Equalization Vent Membrane
Mimoyin pressure equalization vent membrane is designed for sealed enclosures that face frequent temperature changes and air pressure differences. By providing continuous and stable air exchange, it quickly balances the internal and external pressure of the housing, prevents housing bulging or suction deformation caused by pressure difference, and avoids condensation inside the enclosure due to temperature fluctuation.
Made of high-strength ePTFE material with excellent air permeability and reliable dust & water resistance, it is widely used in outdoor lamp housings, automotive electronic control units, battery packs and large sealed equipment. We provide both standard round vent products and custom die-cut membrane solutions to meet different structural design requirements.
| Parameter | Specification |
|---|---|
| Base Material | High-strength ePTFE |
| Waterproof Rating | IP65 / IP67 |
| Air Permeability | 1000 – 5000 ml/min @ 7kPa (high flow type) |
| Operating Temperature | -40℃ ~ +130℃ |
| Pressure Resistance | Supports rapid pressure difference changes |
| Service Life | ≥ 5 years under normal outdoor environment |
| Installation Method | Adhesive mounting / screw-on vent housing |
| Dust Holding Capacity | High dust load capacity |
Core Advantages
- High air flow rate, quickly equalizes internal and external pressure of sealed enclosures
- Prevents condensation inside the housing, protects internal electronic components
- Reliable dust and water splash protection, suitable for long-term outdoor use
- Reduces mechanical stress on housing seals, extends product service life
- Available in both adhesive membrane and integrated vent housing forms
Application Fields
- Outdoor LED lighting & street lamp housings
- Automotive ECU and electronic control units
- New energy battery packs and power enclosures
- Industrial control cabinets and junction boxes
- Solar photovoltaic equipment
- Marine and outdoor communication cabinets
Order & Delivery Information
- MOQ: 500 pieces (membrane) / 100 pieces (vent housing)
- Sample Lead Time: 5 – 7 working days
- Mass Production Lead Time: 10 – 20 working days
- Customization: Custom air permeability, size and installation method supported