VentGuard Breathers

Des-Case VentGuard™ breathers have check-valve technology that isolates the system and only 'breathes' when necessary, making them an ideal solution that protect low-flow applications with intermittent operations. Check valves provide slight system pressurization that allows for controlled breathing without excessive pressure build-up. The system breathes only when pressured to do so, and then the air is cleaned and dried before it is introduced into the system, ensuring a clean, dry headspace. This control mechanism also prevents premature saturation of the silica gel and extends breather life, a problem not as easily tackled by standard desiccant breathers exposed to extreme moisture.

INDUSTRIES

  • Oil & Gas
  • Storage
  • Wind Energy
  • Pulp & Paper
  • General Manufacturing
  • Aviation

APPLICATIONS

  • Gearboxes
  • Pumps
  • Hydraulics Power Units
  • Conveying Systems
  • Low-Flow Applications

OPERATING ENVIRONMENTS

  • Intermittent Operations
  • High Humidity
  • Washdowns

EXPLORE

VentGuard Breather Cut Thru

Foam Pad

Foam filter captures any oil mist and disperses incoming air evenly over filtration and drying area.

Secondary Filter Element

Second polyester filter element protects against migration of desiccant dust, providing maximum efficiency.

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.

Water Adsorbent

Silica gel adsorbs water from incoming air and can hold up to 40% of its weight. Condition is indicated by change of colour from blue to light pink.

Resilient Polycarbonate Body

Shock-absorbing, clear casing provides reliable service and easy maintenance.

Recessed Check-Valves

High-quality umbrella check-valves that won’t clog or stick are recessed underneath the unit for added protection from washdown environments. Check-valves isolate equipment from ambient conditions, prolonging breather life.

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.

Threaded Mounting

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

HOW IT WORKS

Check-valves on the bottom of the unit isolate the system until equipment needs to breathe. As air is drawn into equipment through the breather, the layered filter elements remove particulate while the desiccant beads strip harmful moisture. While in service or during shutdown, the desiccant beads attract moisture from inside the equipment reservoir, actively drying the equipment.

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.

Time to replace your standard breather

PRODUCT SPECIFICATIONS

Product Specs
DC-VG-BB

DC-VG-1

DC-VG-2

DC-VG-3

DC-VG-4
Unit Height (in / mm) 3.90 / 99.06 5.31 / 134.9 6.125 / 155.6 8.125 / 206.4 10.125 / 257.2
Unit Diameter (in / mm) 2.52 / 64.01 2.52 / 64.01 4 / 101.6 4 / 101.6 4 / 101.6
Connection Size 3/8" Multi-Fit (NPT, BSPP, BSPT) 3/8" Multi-Fit (NPT, BSPP, BSPT) 1" Multi-Fit (NPT, BSPT, NPSM) 1" Multi-Fit (NPT, BSPT, NPSM) 1" Multi-Fit (NPT, BSPT, NPSM)
Amount of Silica Gel (lbs / kg) 0.13 / 58.6 0.28 / 125.3 0.66 / 0.30 1.22 / 0.56 1.88 / 0.84
Adsorption Capacity (fl oz / ml) 0.79 / 23.3 1.68 / 49.7 4.00 / 118.2 7.45 / 220.3 11.3 / 333
Max. Flow Rate (cfm) 1.45 @ 1 psid 1.45 @ 1 psid 2.5 @ 1 psid 2.28 @ 1 psid 1.8 @ 1 psid
Max. Flow Rate (lpm) 41.06 41.06 70.5 64.5 50.9
Filter Efficiency 3µ absolute (ß3≥200) 3µ absolute (ß3≥200) 3µ absolute (ß3≥200) 3µ absolute (ß3≥200) 3µ absolute (ß3≥200)
Operating Temp. Range (°F) -20° to 200° -20° to 200° -20° to 200° -20° to 200° -20° to 200°
Operating Temp. Range (°C) -29° to 93° -29° to 93° -29° to 93° -29° to 93° -29° to 93°

Model Max. Airflow at 1 psid  Recommended Max. Volume
Gearbox / Storage Tank Hydraulic Reservoir
DC-VG-BB 1.45 / 41.06 lpm 15 gal / 57L 2 gal / 8 L 
DC-VG-1  1.45 / 41.06 lpm 35 gal / 132 L  5 gal / 19 L 
DC-VG-2  2.5 cfm / 70.5 lpm 200 gal / 757 L  60 gal / 227 L 
DC-VG-3  2.28 cfm / 64.5 lpm 350 gal / 1325 L 100 gal / 379 L 
DC-VG-4 1.8 cfm / 50.9 lpm 500 gal / 1893 L 200 gal / 757 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.

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
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
3/4" NPT Vent Valve Adapter for Standard and VentGuard Breathers DC-SDVA-12M
1" NPT Vent Valve Adapter for Standard and VentGuard Breathers DC-SDVA-16M
  • 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