Pressure Compensation Device (Stainless Steel)
DA 284 | IP66

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

Pressure differentials in enclosures with a high degree of protection are a result of internal and external temperature changes. In the case of negative pressure or partical vacuum, dust and humidity can enter the enclosure through the door seal. When the air inside the enclosure cools down, condensation may occur because the humidity cannot escape the enclosure. The easy-to-install pressure compensation device DA 284 provides compensation of pressure at a protection degree of IP66. Even with a slight overpressure, a waterproof membrane inside the plug allows the humidity to escape whilst blocking water and dirt from entering the enclosure.

Technical Data

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Mountingthread M40 x 1.5 with nut
Torque5Nm (max. 10Nm)
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 1.4301 / AISI 304)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