Pressure Compensation Device (Stainless Steel)
DA 284 | IP66

  • High degree of protection
  • Waterproof membrane
  • Corrosion resistant
  • Food safe

In enclosures and housings with a high protection class, differential pressure happens due to internal and external temperature changes. In the event of negative pressure, dust and humidity can be drawn into the enclosure through the seals on the doors. This can cause condensation when the air in the enclosure cools down. The easy-to-fit DA 284 pressure compensation device enables pressure compensation with protection class IP66 (M12: IP67). Additionally, the watertight membrane inside the pressure compensation device allows humidity to escape from the cabinet at overpressure, while preventing water, humidity or dirt intrusion at under pressure.

Technical Data

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Mountingthread M40 x 1.5 with nut
Depth in enclosureapprox. 9mm
Sealingsealing gasket NBR
Filterwaterproof membrane
Air permeability1200l/h at a pressure difference of min. 70mbar
DimensionsØ 58 x 31mm
Fitting positionvariable
Operating/Storage temperature-45 to +80°C (-49 to +176°F)

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Make cut-out Ø 40.5+0,5mm in enclosure wall and mount pressure compensation device with nut. Please make sure that the sealing gasket is put in place on the outer side panel of the enclosure. For optimal pressure compensation we recommend to use two devices on opposite sides towards the top of the enclosure.

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Art. No.Stainless steelProtection type1 packaging unitWeight (approx.)
28401.0-00V2A (DIN 1.4305 / AISI 303)1IP66 (EN 60529) / IPX9K (EN 40050-9)1 piece0.2kg
28401.0-02V4A (DIN 1.4404 / AISI 316L)IP66 (EN 60529) / IPX9K (EN 40050-9)1 piece0.2kg

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1 V2A is not sea waterproof

Technical drawing

Pressure compensation device DA 284