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:Nickel Plated Brass
Temperatures:from -40°C to +100°C
Connecting Thread:Metric


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Data Sheets / Installation instructions

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Product video

For general product illustration

Material: Nickel Plated Brass; Connecting Thread: M
Article numberSize ETClamping rangeSWSW1Connecting thread lengthHPU
HU1624120051M 12 x
HU1624120050M 12 x
HU1624160051M 16 x
HU1624160050M 16 x 1.55.0010.0020206.077.0050
HU1624200051M 20 x 1.57.0012.0024246.098.0050
HU1624200050M 20 x 1.510.0014.0024246.098.0050
HU1624250051M 25 x 1.59.0016.0030307.0111.0020
HU1624250050M 25 x 1.513.0018.0030307.0111.0020
Unless otherwise stated, all data in millimeters or pieces (quantity)