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 +95°C
Connecting Thread:Metric


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Data Sheets / Installation instructions

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Mounting Instruction

Product video

For general product illustration

Material: Nickel Plated Brass; Connecting Thread: M
Article numberSize ETClamping rangeSWSW1Connecting thread lengthHPU
Standard Sealing, NBR
HU1616120051M 12 x
HU1616120050M 12 x
HU1616160051M 16 x
HU1616160050M 16 x 1.56.0010.0020206.022.0050
HU1616200051M 20 x 1.57.0012.0024246.023.0050
HU1616200050M 20 x 1.510.0014.0024246.023.0050
HU1616250051M 25 x 1.510.0016.0030307.024.0025
HU1616320051M 32 x 1.513.0020.0040408.031.0025
HU1616250050M 25 x 1.514.0018.0030307.024.0025
HU1616320050M 32 x 1.520.0025.0040408.031.0025
HU1616400051M 40 x 1.520.0026.0050508.037.0010
HU1616400050M 40 x 1.522.0032.0050508.037.0010
HU1616500051M 50 x 1.525.0031.0057579.037.005
HU1616630051M 63 x 1.529.0035.00646810.038.005
HU1616500050M 50 x 1.532.0038.0057579.037.005
HU1616630050M 63 x 1.537.0044.00646810.038.005
Unless otherwise stated, all data in millimeters or pieces (quantity)