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 -20°C to +180°C


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Data Sheets / Installation instructions

Something missing? Then please contact us!

Material: Nickel Plated Brass
Article numberSize ETClamping rangeSWSW1Connecting thread lengthHPU
Standard Sealing, FKM
HU1752120050M 12 x
HU1752120051M 12 x
HU1752160050M 16 x 1.54.0011.0019207.024.5025
HU1752160051M 16 x 1.57.0011.0019207.024.5025
HU1752200050M 20 x 1.57.0014.0022246.027.0025
HU1752200051M 20 x 1.510.0014.0022246.027.0025
HU1752250050M 25 x 1.511.0018.0027307.029.0025
HU1752250051M 25 x 1.514.5018.0027307.029.0025
HU1752320050M 32 x 1.516.0025.0036408.034.0010
HU1752320051M 32 x 1.520.5025.0036408.034.0010
HU1752400050M 40 x 1.521.0032.0046508.040.005
HU1752400051M 40 x 1.526.5032.0046508.040.005
HU1752500050M 50 x 1.531.0042.0057579.048.005
HU1752500051M 50 x 1.535.0042.0057579.048.005
HU1752630050M 63 x 1.541.0054.00656810.047.501
HU1752630051M 63 x 1.546.5054.00656810.047.501
Unless otherwise stated, all data in millimeters or pieces (quantity)