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HydroGuard® Breathers

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.

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Features

By the Numbers

HydroGuard Desiccant Breather Cutaway1–Domed Cap
A domed cap allows for better washdown runoff.

2–Expansion Chamber
The diaphragm allows for expansion/contraction of the air within the casing as a result of temperature variations during steady-state operations.

3–External Ribs
External ribs on shell to create greater durability and grip when installing or replacing breather.

4–Integrated Nylon Standpipe
The integrated standpipe provides excellent vibration resistance and dissipates impact throughout the unit, eliminating weak points. It also allows even airflow distribution throughout the unit, eliminating inaccurate readings of desiccant saturation.

5–Integrated Drip Ring
An integrated drip ring keeps shedding water from entering the vent holes.

6–Threaded Mounting
Easily replaces standard filler/breather cap with multi-fit connection or one of several adapters.

7–Larger, High-Capacity Check Valves
High-capacity check valves allow for increased airflow at low cracking pressure.

8-Filter Element
Polyester filter element removes airborne contamination to 3-micron absolute. Unique loops allow particles to release during system exhalation, helping to increase breather life.

9–Enhanced Seal
An enhanced seal eliminates potential for airflow bypass.

Applications

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

Specifications

Model Specs

Model
DC-HG-1

Unit Height
7.19 in (182 mm)

Unit Diameter
2.52 in (64 mm)

Filter Efficiency
3μ absolute (β3≥200)

Amount of Silica Gel
0.3 lbs (0.1 kg)

Adsorption Capacity
2 fl oz (50 ml)

Max. Flow Rate
1 cfm (40 lpm)

Operating Temp. Range
-20°F to 200°F (-29°C to 93°C)

Connection Size
3/8″ Multi-Fit (NPT, BSPP, BSPT)

DC-HG-8

Unit Height
9.73 in (247 mm)

Unit Diameter
4.10 in (104 mm)

Filter Efficiency
3μ absolute (β3≥200)

Amount of Silica Gel
0.8 lbs (0.4 kg)

Adsorption Capacity
5 fl oz (144 ml)

Max. Flow Rate
7 cfm (198 lpm)

Operating Temp. Range
-20°F to 200°F (-29°C to 93°C)

Connection Size
1″ Multi-Fit (NPT, BSPP, BSPT)

Model Sizing

Model
DC-HG-1

Suction/Return Rate at 1 psid
11 gpm (40 lpm)

Gearbox/Storage Tank Max. Volume
50 gal (189 L)

Hydraulic Reservoir Max. Volume
N/A

DC-HG-8

Suction/Return Rate at 1 psid
52 gpm (198 lpm)

Gearbox/Storage Tank Max. Volume
400 gal (1514 L)

Hydraulic Reservoir Max. Volume
55 gal (208 L)

Adapters

Part Number
DC-12-T
DC-12-TG
DC-15-T

Descriptions
Threaded Flange Adapter
Threaded Flange Adapter with Gasket
Bayonet Adapter

Equipment Connection / Port Size
6-Bolt Circular Mounting (Ø 2.9″)
6-Bolt Circular Mounting (Ø 2.9″)
1 1/2″ Bayonet Style

Tech Sheets

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SPECS