Des-Case Hydroguard Desiccant Breathers

Desiccant Breather DC-HG-1

The Des-Case Desiccant Breather DC-HG-1 breathers uniquely feature an expansion chamber and internal check valves that as a result 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, also water-contaminated oil
  • Prevents contamination ingress
  • Also provides longer lubricant life
  • Reduces wear and tear on equipment, therefore 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.

Desiccant Breather DC-HG-1

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

Product Specs

Unit Height (in / mm)
7.22 / 183
Unit Diameter (in / mm)
2.52 / 64
Connection Size
3/8” Multi-Fit (NPT, BSPP, BSPT)
Amount of Silica Gel (lbs / kg)
0.28 / 0.125
Adsorption Capacity (fl oz / ml)
1.68 / 49.6
Max. Flow Rate (cfm)
1.41 @ 1 psid
Max. Flow Rate (lpm)
Filter Efficiency
3µ absolute (β₃≥200)
Operating Temp. Range when in (°F)
-20° to 200°
Operating Temp. Range in that case (°C)
-29° to 93°

Sizing Desiccant Breather DC-HG-1

Max. Airflow at 1 psid
39.93 lpm
Gearbox/Storage Tank
189 L
Hydraulic Reservoir


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

Product Enquiry

Scroll to Top