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Des-Case VentGuard Desiccant 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.

Ventguard

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

1 Domed Cap

A domed cap allows for better washdown runoff

2 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

3 External Ribs

External ribs on shell to create greater durability and grip when installing or replacing breather

4 Integrated Drip Ring

An integrated drip ring keeps shedding water from entering the vent holes

5 Threaded Mounting

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

6 Larger, High-Capacity Check Valves

High-capacity check valves allow for increased airflow at low cracking pressure

7 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

8 Enhanced Seal

An enhanced seal eliminates potential for airflow bypass


HOW IT WORKS


PRODUCT SPECIFICATIONS

Product Specs DC-VG-BB DC-VG-1 DC-VG-2 DC-VG-3 DC-VG-4
Unit Height (in / mm) 3.87 / 98 5.36 / 136 6.00 / 152 8.00 / 203 10.00 / 254
Unit Diameter (in / mm) 2.52 / 64 2.52 / 64 4.10 / 104 4.10 / 104 4.10 / 104
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) 0.1 / 0.06 0.3 / 0.1 0.8 / 0.4 1.4 / 0.6 2.0 / 0.9
Adsorption Capacity (fl oz / ml) 0.8 / 23 2 / 50 5 / 144 9 / 253 12 / 359
Max. Flow Rate (lpm) 41 41 340 311 283
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 Suction / Return Rate (gpm / lpm)
Gearbox / Storage Tank Max Volume (gal / L) Hydraulic Reservoir Max Volume (gal / L)
DC-VG-BB 11 / 41 15 / 57 2 / 8
DC-VG-1  11 / 41 35 / 132 5 / 19
DC-VG-2  90 / 340 200 / 757 60 / 227
DC-VG-3  82 / 311 350 / 1325 100 / 379 L 
DC-VG-4 75 / 283 500 / 1893 200 / 757

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"-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

Reduce downtime & improve reliability

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