Pressure equalisation elements

Meaning & Function

Fluctuations in temperature triggered by external influences (such as changing weather conditions) can lead to condensation developing within the enclosure. To prevent this from happening, we recommend using pressure equalisation elements.

Our pressure equalisation elements prevent the pressure difference between the inside of the enclosure and the environment, which is responsible for the condensation in the enclosure. The elements made of robust polyamide or stainless steel are fitted with a special air permeable but water repellent membrane in order to maintain the enclosure’s IP protection. You will find solutions in different sizes, materials or colours in our extensive product range.


How many pressure equalisation elements do you need for your application?

The question can be answered quite simply – using our pressure equalisation calculator. Take a look here.

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To our products


Material:Polyamide 6
Temperatures:from -20°C to 40°C
Protection Class:IP66/IP68
Connecting Thread:Metric


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Data Sheets / Installation instructions

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Mounting Instruction
Material: Polyamide 6; Connecting Thread: M
Article numberSize ETConnecting thread lengthDhexagon socketPU
PDE400300M 16 x 1.510.020.5101
PDE400400M 20 x 1.510.024.5101
PDE400500M 25 x 1.510.029.5101
PDE400600M 32 x 1.510.036.5101
PDE400700M 40 x 1.510.044.5101
PDE400800M 50 x 1.510.054.5101
PDE400900M 63 x 1.510.067.5101
PDE401000M 75 x 1.510.079.5101
Unless otherwise stated, all data in millimeters or pieces (quantity)