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Extended Series Breather Filter 1" FNPT

Produktnummer: DC-EX-4

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Extended® Series Desiccant Breathers

Des-Case Extended Series desiccant breathers combine the trusted materials and design of our Standard breathers with the check-valves of our VentGuard and HydroGuard breathers, plus a new oil mist reducing feature, higher air flows and more than double the desiccant! These high airflow, long-lasting desiccant breathers are ideal for tank farms and large or remote applications.


  • Removes moisture in the headspace of equipment
  • Eliminates rust-forming condensation
  • Prevents sludge deposits and water-contaminated oil
  • Prevents contamination ingress
  • Provides longer lubricant life
  • Reduces wear and tear on equipment, prolongs life

How it works

As wet, contaminated air is drawn through the unit, multiple 3-micron polyester filter elements remove solid particulate, and the color-indicating silica gel extracts moisture. When air is expelled from the container, the top foam pad prevents oil mist from contacting silica gel or entering the atmosphere.  Additionally, the breather is outfitted with a resilient nylon standpipe and polypropylene oil mist reducer to allow oil mist to coalesce and drain back into the reservoir, rather than compromising the desiccant. Six high-quality umbrella check-valves are located underneath the unit to isolate equipment from ambient conditions, prolonging breather life and protecting system integrity.

Technical Data
Hydraulic Reservoir Max Volume 1514 litres
Temperature range -29° to 93°
Diameter 144 mm
Amount of Silica Gel 1.91 kg
Connection size 1″ Female (FNPT)
Filter efficiency 3µ absolute (β₃≥200)
Adsorption Capacity 798 ml
Height 254 mm
Applications Storage tanks, wind turbines, large gearboxes/hydraulics, Oil misting, Remote applications
Gearbox or storage tank max volume 3785 litres
Maximum operating pressure 680