Des-Case Hydroguard Desiccant Breathers

Desiccant Breather DC-HG-8

The Des-Case Desiccant Breather DC-HG-8 breathers uniquely feature an expansion chamber and internal check valves that create a nearly-sealed system. Designed specifically for steady-state operations with minimal temperature fluctuations, these breathers provide excellent protection in continuous duty 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

As wet, contaminated air is drawn through the unit, multiple 3-micron polyester filter elements remove solid particulate while the color-indicating silica gel extracts moisture. The diaphragm allows for expansion/contraction of the air within the casing as a result of temperature variations during steady-state operations. When air is expelled from the container, the top foam pad prevents oil mist from contacting silica gel or entering the atmosphere.

SEEING PINK? A pink breather means it has done its job keeping moisture out of your lubricants. Time to replace the breather with a new one.

Product Specs

Unit Height (in / mm)
9.75 / 247.66
Unit Diameter (in / mm)
4.1 / 104.1
Connection Size
1” Multi-Fit (NPT, BSPP, BSPT)
Amount of Silica Gel (lbs / kg)
0.65 / 0.24
Adsorption Capacity (fl oz / ml)
4.05 / 120
Max. Flow Rate (cfm)
2.5 @ 1 psid
Max. Flow Rate (lpm)
Filter Efficiency
3µ absolute (β₃≥200)
Operating Temp. Range (°F)
-20° to 200°
Operating Temp. Range (°C)
-29° to 93°

Sizing Desiccant Breather DC-HG-8

Max. Airflow at 1 psid
70.5 lpm
Gearbox/Storage Tank
1514 L
Hydraulic Reservoir
208 L


  • Steady-State Operations
  • Gearboxes
  • High-Humidity
  • Washdowns
  • Low Flow Applications

Product Enquiry

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