Des-Case HydroGuard® 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.
| PRODUCT SPECS |
DC-HG-1 |
DC-HG-8 |
| Unit Height (in / mm) |
7.22 / 183 |
9.75 / 247.66 |
| Unit Diameter (in / mm) |
2.52 / 64 |
4.1 / 104.1 |
| Connection Size |
3/8" Multi-Fit (NPT, BSPP, BSPT) |
1" Multi-Fit (NPT, BSPP, BSPT) |
| Amount of Silica Gel (lbs / kg) |
0.28 / 0.125 |
0.65 / 0.24 |
| Adsorption Capacity (fl oz / ml) |
1.68 / 49.6 |
4.05 / 120 |
| Max. Flow Rate (cfm) |
1.41 @ 1 psid |
2.5 @ 1 psid |
| Max. Flow Rate (lpm) |
39.93 |
70.5 |
| Filter Efficiency |
3µ absolute (β₃≥200) |
3µ absolute (β₃≥200) |
| Operating Temp. Range (°F) |
-20° to 200° |
-20° to 200° |
| Operating Temp. Range (°C) |
-29° to 93° |
-29° to 93° |
Sizing & Application
| MODEL |
MAX. AIRFLOW AT 1 PSID |
RECOMMENDED MAX. VOLUME |
| GEARBOX / STORAGE TANK |
HYDRAULIC RESERVOIR |
| DC-HG-1 |
1.41 cfm / 39.93 lpm |
50 gal / 189 L |
N/A |
| DC-HG-8 |
2.5 cfm / 70.5 lpm |
400 gal / 1514 L |
55 gal / 208 L |
Please Note: This is intended as a general guideline for sizing only; other considerations, such as: humidity level, frequency of air flow, ambient temperatures, and chemical compatibility are very important in sizing a breather properly. Larger applications and special circumstances typically require the most thorough analysis. Please contact Des-Case for assistance in sizing a breather.
Applications
- Steady-State Operations
- Gearboxes
- High Humidity
- Washdowns
- Low Flow Applications
How It Works
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.
Adapters
| DESCRIPTION |
PART NUMBER |
| 1" FNPT x 1" Slip Fit Adapter |
DC-10-S |
| 1" Threaded Adapter |
DC-10 |
| 1" Male Threaded x 1" Female Threaded Adapter |
DC-10-T |
| Field Flange Adapter-Slip Fit (DC-HG-8 only) |
DC-12-S |
| Bell Reducer 1" to 3/4"-Slip Fit |
DC-17 |
| 1"-3/4" Female to Male Threaded Adapter |
DC-17-T |
| 1"-1/4" Brass, Threaded Reducer/Adapter |
DC-18 |
| Threaded Flange Adapter |
DC-12-T |
| Threaded Flange Adapter with Gasket |
DC-12-TG |
| Bayonet Adapter |
DC-15-T |
Benefits
- 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
