The pressure compensation elements of the series GH02/DAE serve for the aeration and deaeration of components, especially of enclosures. For drainage plugs, please click here.
This is especially important to avoid damage to built-in components caused by condensation that occurs because of variations in temperature/pressure peaks.
Stainless steel pressure compensation elements |
Plastic pressure compensation elements
|
|
|
more pictures ==>
|
An important performance feature of the pressure compensation elements is the high air flow rate combined with high water retention capacity. Thus the internal pressure of closed enclosures is adapted to the ambient pressure, and at the same time, water penetration is prevented.
Degrees of impermeability attainable with these pressure compensation elements: IP66, IP68 and IPX9-k.
This is technically realized by means of a membrane foil integrated into the element, which is permeable to air on both sides and permeable to water on one side.
Different versions are available which differ in
- material (polyamide or stainless steel)
- color (black or RAL 7035 light grey)
- thread length (6.6 or 10mm )
Special equipments are available on request.
Additional information:
- Usually, 1 pressure compensation element per enclosure is sufficient, but this depends on environmental factors as well as on the sensitivity of the electronic devices present; we would therefore recommend that you carry out your own tests in any case.
Properties of the membrane foil:
- air flow rate: 0.4 l/min at 0.1 bar Delta P to 5.0 l/min at 1 bar Delta P
- water entry pressure: up to 1.0 bar
(this can be increased up to 1.5 bar. For this purpose, you are required to order an IP68-enclosure and the arespective individual degree of protection test)
- temperatur stability: -40°C to +120°C (in the blocked condition)
- dust proofness after EN 60529:2000
- water jet protection and protection against permanent immersion EN 60529:2000
- protection against high pressure/steam jet cleaning acc. to DIN 40050
Additional information:
Chemical and solvent resistance of the membrane foil according to DIN EN ISO 2812-1
(determination of the resistance against liquids, test method 1 (dipping method))
|
Test liquid
|
Duration of the impact (at 23°C)
|
Change
|
|
Premium fuel
|
15 min
|
none
|
|
Diesel fuel
|
30 min
|
none
|
|
Engine oil
|
1 h
|
none
|
|
Water (dest.)
|
1 h
|
none
|
|
Brake fluid
|
1 h
|
none
|
|
Interior cleaner
|
1 h
|
none
|
Air passage test:
The pressure compensation element was screwed in into a thread adapter and subjected to a defined quantity of air by means of a mass flow controller 5 LN/MIN and/or 20 LN/MIN made by Bronkhorst. In doing so, the air pressure was measured with a pressure sensor PMP 4070 from the same company shortly in front of the pressure compensation element.
The following amounts of air, as a function of the air pressure, were determined:
|
Air pressure inside the enclosure
|
Air passage
|
|
0.1 bar
|
0.8 l/min.
|
|
0.2 bar
|
1.5 l/min.
|
|
0.3 bar
|
2.2 l/min.
|
|
0.4 bar
|
2.9 l/min.
|
|
0.5 bar
|
3.7 l/min.
|
|
0.6 bar
|
4.4 l/min.
|
|
0.7 bar
|
5.2 l/min.
|
|
0.8 bar
|
6.0 l/min.
|
|
0.9 bar
|
6.8 l/min.
|
|
1.0 bar
|
7.6 l/min.
|
The above statements do not absolve our customers from testing the suitability for the intended area of application in each case.
Our products are at any time subject to technical alterations without prior notice. Every liability is disclaimed with respect to application technology advice. Additionally, we refer to our general terms and conditions, which you can find here in their latest version.
|
