Pressure Equalisation Solutions

Pressure balance elements and pressure balance cable glands to prevent the formation of condensation in electronic and electrotechnical components.

Pressure compensation elements - practically a must for high degrees of protection.

Condensation forms quickly in particularly tight enclosures because humidity cannot escape. Sweating enclosures are particularly prevalent in locations with changing temperatures. Temperature fluctuations inside enclosures also lead to condensation - the more often, the more damaging it is for the equipment. Short circuits can be the result, as can complete equipment failure due to the loss of IP protection. An easy-to-install element, which in most cases is equipped with a gas-permeable and hydrophobic as well as oleophobic special membrane foil, can be used to create an appropriate pressure equalization.

Expertise and further useful information on pressure equalization elements and drainage nozzles can be found here!


Our new VSD, ARSD and ARVSD safety pressure equalization elements are a special highlight. In addition to the pressure equalization function, which prevents the formation of condensation water, these offer another important function. If the pressure is too high, the system opens up and allows hot gases to escape to the outside (e.g. in the event of a thermal runaway). This reliably prevents the possible explosion of a battery or inverter housing, for example. Details on our safety pressure equalization elements can be found here.


The RST Pressure Balance Calculator

Easily calculate the type and number of pressure compensation solutions that make sense for your application.


Material:Polyamide 6.6
Flat seal:
Temperatures:from -40°C to 100°C
Protection Class:IP56 (Kategorie 2)
Connecting Thread:Metric

Approvals / Test Reports / Declarations

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You can find an article-specific allocation of approvals at article level or in the cross-reference list.

Data Sheets / Installation Instructions

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Mounting Instruction

Product Video

For general product illustration.

Material: Polyamide 6.6; Connecting Thread: M
Article NumberAir flow
δ=min. 70 mbar l/h
Water passage
ΔP=min. 70 mbar l/h
Entry ThreadSWSW1LDH max.PU
RAL 7035RAL 7001RAL 9005
13088512DP2521.8M 12 x 1.5171812.019.0017.501
Unless otherwise stated, all data in millimeters or pieces (quantity)