Desiccant Breathers

Seal and Protect Your Equipment

Desiccant breathers replace the standard dust cap or OEM breather cap on equipment, offering better filtration to protect against even the smallest particulates that destroy the effectiveness of your machinery, and cause downtime and costly repairs.  As air is drawn into equipment through the breather, the layered desiccant filter elements remove particulate while the desiccant beads strip harmful moisture.  While in service or during shut down, the desiccant beads attract moisture from inside the equipment reservoir, actively drying the equipment.

Standards_Group2_web Standard Series Breathers
HG_Group HydroGuard Breathers
VG_Group2_web VentGuard Breathers
Extended Series Breathers Extended Series Breathers
Extreme Duty Breather Extreme Duty Breather
RS Full Line Rebuildable Steel Breathers
ND_Group-compressor Non-Desiccant Breathers
IsoLogic Breather IsoLogic Breathers
Standard Series Breathers

Des-Case Standard Series Breathers have been designed to work in a wide variety of industries and applications. The breather’s resilient, integrated nylon standpipe ensures that it can easily combat high vibration and volatile environments. Each breather is outfitted with a clear, rugged polycarbonate casing that allows easy view of color-indicating desiccant in order to monitor when the breather should be replaced. With over 25 years of contamination control expertise, Des-Case breathers attack the source of contamination, making the products an affordable and cost effective solution to extend lubricant life and to increase equipment productivity.

Applications:

  • Totes
  • Transformers
  • Storage drums
  • Hydraulics

Benefits & Models:

  • 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
Product SpecificationsDC-BBDC-1DC-2DC-3DC-4
Unit Height (in/mm)3.90 / 99.065.31 / 134.96.125 / 155.68.125 / 206.410.125 / 257.2
Unit Diameter (in/mm)2.52 / 64.12.52 / 64.14.00 / 101.64 / 101.64 / 101.6
Amount of Silica Gel (lbs/kg)0.13 / 0.580.28 / 0.1270.66 / 0.301.22 / 0.561.88 / 0.84
Adsorption Capacity (fl oz/ml)0.79 / 23.31.68 / 49.74 / 118.27.45 / 220.311.3 / 333
Max. Flow Rate (cfm)4.55 @ 1 psid4.16 @ 1 psid16 @ 1 psid16 @ 1 psid16 @ 1 psid
Max. Flow Rate (lpm)128.84117.8453453453
Filtration3µ absolute
3>200)
3µ absolute
3>200)
3µ absolute
3>200)
3µ absolute
3>200)
3µ absolute
3>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°
Body MaterialPolycarbonate, Nylon, Polypropylene, Polyester, Polyurethane, Silica, Buna-N, PVC
Hydrophilic AgentSilica gelSilica gelSilica gelSilica gelSilica gel
Filter MediaPolyesterPolyesterPolyesterPolyesterPolyester
Connection Size3/8" 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)
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.

Applications:

  • Gearboxes
  • Mixers/agitators
  • Cooling Towers
  • Low-flow applications

Benefits & Models:

  • 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
Product SpecificationsDC-HG-1DC-HG8
Unit Height (in/mm)7.22 / 1839.75 / 247.66
Unit Diameter (in/mm)2.52 / 644.1 / 104.1
Amount of Silica Gel (lbs/kg)0.28 / 0.1250.65 / 0.24
Adsorption Capacity (fl oz/ml)1.68 /49.64.05 / 120
Max. Flow Rate (cfm)1.41 @ 1 psid2.5 @ 1 psid
Max. Flow Rate (lpm)39.9370.5
Filtration3µ absolute
3>200)
3µ absolute
3>200)
Operating Temp. Range (°F)-20° to 200°-20° to 200°
Operating Temp. Range (°C)-29° to 93°-29° to 93°
Hydrophilic AgentSilica gelSilica gel
Filter MediaPolyesterPolyester
Connection Size3/8" Multi-Fit (NPT, BSPP, BSPT)1" Multi-Fit (NPT, NPSM, BSPT)
Body MaterialPolycarbonate, Nylon, Polypropylene, Polyester, Polyurethane, Buna-N, PVC
Expansion Chamber Volume (in3)1.93515.66

 

VentGuard Breathers

VentGuard Breathers have check-valve technology that isolates the system and only breathes when necessary, making them an ideal solution to protect low-flow applications with intermittent operations.  Check valves provide slight system pressurization that allows for controlled breathing without excessive pressure build-up.  This control mechanism 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.

Applications:

  • Gearboxes
  • Pumps
  • Hydraulic power units
  • Conveying systems
  • Low-flow applications

Benefits & Models:

  • 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
Product SpecificationsDC-VG-BBDC-VG-1DC-VG-2DC-VG-3DC-VG-4
Unit Height (in/mm)3.90 / 99.065.31 / 134.96.125 / 155.68.125 / 206.410.125 / 257.2
Unit Diameter (in/mm)2.52 / 64.012.52 / 64.014 / 101.64 / 101.64 / 101.6
Amount of
Silica Gel (lbs/kg)
0.13 / 0.0580.28 / 0.1270.66 / 0.301.22 /0.561.88 /0.85
Adsorption
Capacity (fl oz/ml)
0.79 / 23.31.68 / 49.74.00 / 118.27.45 / 220.311.3 / 353
Max. Flow Rate (cfm)1.45 @ 1 psid1.45 @ 1 psid2.44 @ 1 psid2.48 @ 1 psid2.98 @ 1 psid
Max. Flow Rate (lpm)4141697084
Filtration3µ absolute
3>200)
3µ absolute
3>200)
3µ absolute
3>200)
3µ absolute
3>200)
3µ absolute
3>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°
Hydrophilic AgentSilica gelSilica gelSilica gelSilica gelSilica gel
Filter MediaPolyesterPolyesterPolyesterPolyesterPolyester
Connection Size3/8" 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)
Body MaterialPolycarbonate, Nylon, Polypropylene, Polyester, Polyurethane, Buna-N, PVC
Extended Series Breathers

Des-Case Extended Series Breathers combine the trusted materials and design of our Standard breathers with the check valves of our VentGuard and HydroGuard breathers, plus a new honeycomb technology oil mist reducing feature, higher air flows, and more than double the desiccant.  These high airflow, long-lasting desiccant breathers are ideal for tank farms and large or remote applications.

Applications:

  • Storage tanks
  • Wind turbines
  • Large gearboxes/hydraulics
  • Oil misting
  • Remote applications

Benefits & Models:

  • 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
Product SpecificationsDC-EX-1DC-EX-2DC-EX-3DC-EX-4
Unit Height (in/mm)4.7 / 1196.4 / 1638.3 / 20810.0 / 254
Unit Diameter (in/mm)5.66 / 143.885.66 / 143.885.66 / 143.885.66 / 143.88
Amount of Silica Gel (lbs/kg)1.2 /0.542.2 /1.03.2 /1.454.2 / 1.91
Adsorption Capacity (fl oz/ml)7.7 / 22814.1 / 41720.5 / 60627.0 / 798
Max. Flow Rate (cfm)27 @ 1 psid26 @ 1 psid25 @ 1 psid24 @ 1 psid
Max. Flow Rate (lpm)765736708680
Filtration3µ absolute
3>200)
3µ absolute
3>200)
3µ absolute
3>200)
3µ absolute
3>200)
Operating Temp. Range (°F)-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°
Body MaterialPolycarbonate, Nylon, Polypropylene, Polyester, Polyurethane, Silica, Buna-N, PVC
Hydrophilic AgentSilica gelSilica gelSilica gelSilica gel
Filter MediaPolyesterPolyesterPolyesterPolyester
Connection Size1" Female (FNPT)1" Female (FNPT)1" Female (FNPT)1" Female (FNPT)
Extreme Duty Breather

The Des-Case Extreme Duty breather has excellent vibration and impact resistance, can withstand broad temperature ranges, has expansive chemical compatibility, and features quality check valve technology while still accommodating higher air flow.  The Extreme Duty breather also has the best filter efficiency of our entire breather line.

Applications:

  • Harsh Environments
  • Mobile & off-road equipment
  • Hydraulics
  • Wash Downs
  • High Vibration/Impact
  • Nautical Applications

Benefits & Models:

  • 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
Product SpecificationsDC-XD-6
Unit Height (in/mm)6.51 / 165.4
Unit Diameter (in/mm)5.1 / 129.5
Amount of Silica Gel (lbs/kg)1.75 / 0.79
Adsorption Capacity (fl oz/ml)10.65 / 315
Max. Flow Rate (cfm)16 @ 1 psid
Max. Flow Rate (lpm)456
Filtration0.3µ absolute (β0.3>200)
Operating Temp. Range (°F)-40° to 300°
Operating Temp. Range (°C)-40° to 149°
Hydrophilic AgentSilica gel
Filter MediaePTFE
Connection Size1½” x 16 UN female thread
Body MaterialPolycarbonate/Polybutylteraphtalate (PC/PBT), Polytetrafluoroethylene,
Aluminum, Polyurethane, Polycarbonate
Rebuildable Steel Breathers

Rebuildable Steel Breathers were designed specifically for applications such as bulk storage tanks or large circulating lube oil systems with very high temperatures, extremely polluted air, or a corrosive environment. They are ruggedly designed with housings of powder-coated carbon steel or stainless steel. The hygroscopic agent (desiccant) is enclosed in a bag of polypropylene filter material. This desiccant bag filter is easily installed when it is time to replace or recharge the unit. The 1-micron pleated filter has a large surface area, resulting in long service life. Like the bag filter, it is easily replaced without removing the breather from service. Rebuildable Steel Breathers accommodate large air flow rates with minimal pressure drops.

Rebuild kits include a 1-micron pleated replacement filter element, desiccant bag filter, sight glass indicator, foam pad, and gasket which are easily replaced without removing the breather from service.

Applications:

  • Bulk Storage
  • Diesel Tank Storage
  • Harsh Environments
  • High Flow Applications
  • Large Hydraulic Reservoirs

Benefits & Models:

  • 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
Product SpecificationsDC-RS-3DC-RS-5DC-RS-9DC-RS-15DC-RS-25DC-RS-50DC-RS-75DC-RS-100DC-RS-150DC-RS-200
Height (in/mm)11.5 / 29213.75 / 34918.25 / 46419.25 / 48922.5 / 57131.25 / 79439.75 / 101031 / 78736.75 / 93342.75 / 1086
Diameter (in/mm)10.13 / 257.210.13 / 257.210.13 / 257.215.5 / 393.715.5 / 393.715.5 / 393.715.5 / 393.723.5 / 596.923.5 / 596.923.5 / 596.9
Amount of
Silica Gel
(lbs/kg)
3 /1.365 / 2.279 / 4.0815 / 6.8025 / 11.3450 / 22.6875 / 34.02100 / 45.36150 / 68.04200 / 90.72
Max. Flow Rate (cfm)85 @ 0.5 psid85 @ 0.5 psid80 @ 0.5 psid205 @ 0.5 psid140 @ 0.5 psid115 @ 0.5 psid80 @ 0.5 psid270 @ 0.5 psid250 @ 0.5 psid240 @ 0.5 psid
Max. Flow Rate (lpm)2407240722655805396432562265764570796796
Operating Temp. Range (°F)-20° to 220°
Operating Temp. Range (°C)-29° to 104°
Connection Size (NPT)2"2"2"3"3"3"3"4"4"4"
Body MaterialCarbon steel, Polyurethane, Polypropylene, Microglass, Polycarbonate, Nomex, Buna-N (Silica gel as hydrophilic agent)
Non-Desiccant Breathers

Non-Desiccant breathers prevent contamination ingress in low-humidity environments or in applications where water-based fluids are in use (e.g. water glycol hydraulic fluid). They help control contamination by preventing free water as well as particles down to 1 micron from getting into the reservoir.

Applications:

  • Low Humidity
  • Oil Misting
  • Arid Environments
  • High Dust
  • Water-Based Fluids
  • Oil Sight Glasses
  • Small Gearboxes

Models:

Product SpecificationsDC-ND-2DC-ND-35
Unit Height (in/mm)1.35 / 34.35 / 127
Unit Diameter (in/mm)1.80 / 45.75 / 127
Max. Flow Rate (cfm)0.67 @ 1 psid40 @ 1 psid
Max. Flow Rate (lpm)191132
Filtration0.3µ absolute
0.3>1000)
0.3µ absolute
0.3>1000)
Operating Temp. Range (°F)-40° to 300°-40° to 300°
Operating Temp. Range (°C)-40° to 149°-40° to 149°
Filter MediaHydrophobicHydrophobic
Connection Size3/8"1" Female (FNPT)

 

IsoLogic Breathers

IsoLogic has eliminated the subjectivity of color-changing desiccant media, allowing you to know the exact moment your breather is fully spent and should be replaced.  Shorten time-consuming, scheduled lube routes by using RFID and Bluetooth technology to collect data on multiple breathers at the same time when syncing them with the IsoLogic app.  IsoLogic detects and records spikes in humidity and water ingress.  Early detection of system upsets, avoidance of equipment failures, and unplanned downtime saves you money, maintains operational efficiency and provides one less headache for you and your organization.

Applications:

  • Intermittent Operations
  • Gearboxes
  • Low-Flow Applications
  • High-Humidity
  • Washdown

Benefits & Models:

  • Sensors and Connectivity
    • Detect and record spikes in humidity and water ingress.
    • Know the exact moment your breather is fully spent and should be replaced. Sensors inside the breather provide a precise digital reading of remaining breather life, saturation direction and breather temperature.
    • Shorten time-consuming, scheduled lube routes by using RFID and Bluetooth technology to collect data on multiple breathers at the same time when syncing them with the IsoLogic app.
    • View all breather statuses and trend data on the web platform from anywhere, anytime.
    • Decrease the risk of workplace injuries by monitoring breathers installed on remote or hard-to-access equipment.

    Desiccant Breather

    • 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
Product SpecificationsDC-IL-VG-1DC-IL-VG-4DC-IL-EX-4
Unit Height (in/mm)5.31 / 134.910.125 / 257.210.0 / 254
Unit Diameter (in/mm)2.52 / 64.014 / 101.65.665 / 143.88
Amount of Silica Gel (lbs/kg)0.28 / 0.1270.28 / 0.1274.2 / 1.91
Adsorption Capacity (fl oz/ml)1.68 / 49.711.3 / 35327.0 / 798
Max. Flow Rate (cfm)1.45 @ 1 psid2.98 @ 1 psid24 @ 1 psid
Max. Flow Rate (lpm)4184680
Filtration3µ absolute (β₃≥200)3µ absolute (β₃≥200)3µ absolute (β₃≥200)
Operating Temp. Range (°F)-4° to 129°-4° to 129°-4° to 129°
Operating Temp. Range (°C)-20° to 54°-20° to 54°-20° to 54°
Connection Size3/8" Multi-Fit (NPT, BSPP, BSPT)1" Multi-Fit (NPT, BSPT, NPSM)1" Female (FNPT)
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1315 Belmeade Drive, Kingsport, TN 37664
Brian@bartassociates.com

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