Technical article

What to Consider When Choosing an IP67 Vent Plug?

Bora Gökçe10 July 2026
What to Consider When Choosing an IP67 Vent Plug?

The use of IP67 vent plugs in electronic enclosures to prevent moisture and dust from seeping in is becoming increasingly common. These parts provide pressure equalization and create a barrier against water and pollutants. If those doing technical research make a decision based only on the phrase "waterproof", they may encounter situations that cause headaches later. The right choice is directly related to the long-lasting operation of the device.

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Topic coverage and key points

IP protection level is a standardized measure that expresses the resistance of a product to solid objects and water. IP67 guarantees submersion at a depth of 1 meter for 30 minutes with full protection against dust. Options that exceed or fall below this level may be inadequate or unnecessarily costly in different working environments.

The membrane structure is the most critical component of the waterproof valve. The ePTFE membrane, with its porous structure, allows air to pass through and keeps liquids out. As an expanded form of PTFE, this material offers higher air permeability and reduces clogging of dirt particles. Alternative membranes may become clogged over time and disrupt the pressure balance.

The operating temperature range determines the reliable operation of the product in all seasons. Models that operate smoothly between -40 °C and +125 °C provide advantages in applications in open areas or near the engine. Outside these temperature limits, the membrane structure may deteriorate or the seal may lose its flexibility.

Material strength should be evaluated separately for both the body and the seal. When polymers that are resistant to UV rays, chemicals and mechanical impacts are preferred, they provide trouble-free service for many years even in outdoor conditions. Particularly in the automotive and marina industries, factors such as salt water and vibration can quickly render low-quality materials dysfunctional.

The application scenario is the stage where all technical features are evaluated together. The same ip67 vent plug model may not work in different areas such as lighting fixtures, electrical panels, or medical device enclosures. Parameters such as mounting hole diameter, required airflow amount and vibration level should be reconsidered depending on the scenario.

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Comparison Chart

Frequently asked questions

What is the difference between IP67 and IP68?IP67 guarantees submersion for a certain period of time, while IP68 is designed for use permanently submerged or in deeper conditions. The choice should be made based on the depth of water to which the device will actually be exposed.

Does the ePTFE membrane clog?ePTFE largely keeps out dirt particles thanks to its pore structure. However, in extremely dusty environments, periodic control and replacement when necessary are recommended.

Why is mounting hole diameter important?Choosing the wrong diameter will cause the gasket not to fit properly and the protection level to decrease. Tolerance values ​​in the manufacturer's catalogs must be taken into account.

What additional features should be looked for in vibrating environments?Models with vibration-resistant locking mechanism and elastomer gasket prevent the gasket from loosening over time. This feature makes a difference especially in on-vehicle equipment.

How is the air flow amount calculated?The required air exchange amount is determined based on the heat load inside the device and the storage volume. Manufacturers usually give values ​​in l/h; This value must meet the application need.

Next step

Contact us for the IP67 valve suitable for your project. Our technical team helps you choose the right product by offering solutions specific to your needs.

Contact:

📩 sinangokce@idealplastik.com.tr

📞 +90 212 612 68 40 / 41

📍 Istanbul – Türkiye

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