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Des-Case Rebuildable Steel Breathers

Des-Case Rebuildable Steel (RS) breathers were designed specifically for applications, such as bulk storage tanks or large circulating lube oil systems, where there are 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.

Rebuildable steel

INDUSTRIES

  • Oil & Gas
  • Storage
  • General Manufacturing
  • Power Generation & Distribution

APPLICATIONS

  • Bulk Storage
  • Diesel Tank Storage
  • High Flow Applications
  • Large Hydraulic Reservoirs
  • Chemical Tanks

OPERATING ENVIRONMENTS

  • Harsh Environments
  • Harsh Chemicals
  • High Temperature

EXPLORE

VentGuard Breather Cut Thru

1 Pleated Filter Element

Filter element captures airborne contamination to 1-micron absolute (ß0.3≥1000)

2 Desiccant

Silica gel strips moisture from incoming air. Desiccant can be customized to mitigate a variety of chemicals or fumes

3 Outside Sight Glass Indicator

Silica gel changes color from blue to light pink when the unit requires component replacement (or rebuilding)

4 Air Vents

Removable stickers keep breather inactive until installation

5 Integrated Standpipe

Resilient construction provides durability and allows oil mist to coalesce and drain back into the reservoir

6 Foam Pad

Foam filter captures any large particles and disperses incoming air evenly over filtration and drying areas

7 Easy-to-Replace Desiccant Bag

Polypropylene bag has handles for easy removal

8 Rugged Housing

Powder-coated carbon steel or stainless steel housing provides excellent protection against the elements


CHEMICAL COMPATABILITY

Gasoline Carbon Steel RS Unit with 100% Molecular Sieve, standard components (gasoline can turn silica gel black, so some customers prefer the molecular sieve instead)

Ethanol Carbon Steel RS Unit with Viton, Plastisol

Diesel/Biodiesel Carbon Steel RS Unit with all standard components

Sulfuric Acid 304 Stainless Steel Unit with Viton, Plastisol, No Foam (can combine w/Activated Carbon if caustic fumes are an issue-combos in 25% increments)

Fyrquel (Phosphate Ester) 304 Stainless Steel Unit with EPDM, Plastisol, No Foam

Skydrol (Phosphate Ester) 304 Stainless Steel Unit with EPDM, Plastisol, No Foam

Aqeous Urea 304 Stainless Steel Unit with EPDM gaskets/seals, No Desiccant/Desiccant Bag, Standard Filter (Note: Customer requested no desiccant bags, other customers may want bag)

Hydrogen Peroxide (70%) 304/316 Stainless Steel Unit with Viton, Plastisol, No Foam


PRODUCT SPECIFICATIONS

Product Specs DC-RS-3 DC-RS-5 DC-RS-9 DC-RS-15 DC-RS-25
Unit Height (in / mm) 11.50 / 292 13.75 / 349 18.25 / 454 19.25 / 489 22.5 / 571
Unit Diameter (in / mm) 10.13 / 257 10.13 / 257 10.13 / 257 15.5 / 394 15.5 / 394
Connection Size 2" 2" 2" 3" 3"
Amount of Silica Gel (lbs / kg) 3 / 1.36 5 / 2.27 9 / 4.08 15 / 6.80 25 / 11.34
Max. Flow Rate (cfm) 85 @ 0.5 psid 85 @ 0.5 psid 80 @ 0.5 psid 205 @ 0.5 psid 140 @ 0.5 psid
Max. Flow Rate (lpm) 2407 2407 2265 5805 3964
Filter Efficiency 1µ absolute (ß1≥1000) 1µ absolute (ß1≥1000) 1µ absolute (ß1≥1000) 1µ absolute (ß1≥1000) 1µ absolute (ß1≥1000)
Operating Temp. Range (°F) -20° to 220° -20° to 220° -20° to 220° -20° to 220° -20° to 220°
Operating Temp. Range (°C) -29° to 104° -29° to 104° -29° to 104° -29° to 104° -29° to 104°
Product Specs DC-RS-50 DC-RS-75 DC-RS-100 DC-RS-150 DC-RS-200
Unit Height (in / mm) 31.25 / 794 39.75 / 1010 31 / 787 36.75 / 933 42.75 / 1086
Unit Diameter (in / mm) 15.5 / 394 15.5 / 394 23.5 / 597 23.5 / 597 23.5 / 597
Connection Size 3" 3" 4" 4" 4"
Amount of Silica Gel (lbs / kg) 50 / 22.68 75 / 34.02 100 / 45.36 150 / 68.04 200 / 90.72
Max. Flow Rate (cfm) 115 @ 0.5 psid 80 @ 0.5 psid 270 @ 0.5 psid 250 @ 0.5 psid 240 @ 0.5 psid
Max. Flow Rate (lpm) 3256 2265 7645 7079 6796
Filter Efficiency 1µ absolute (ß1≥1000) 1µ absolute (ß1≥1000) 1µ absolute (ß1≥1000) 1µ absolute (ß1≥1000) 1µ absolute (ß1≥1000)
Operating Temp. Range (°F) -20° to 220° -20° to 220° -20° to 220° -20° to 220° -20° to 220°
Operating Temp. Range (°C) -29° to 104° -29° to 104° -29° to 104° -29° to 104° -29°° to 104°

Model Suction / Return Rate at Max Airflow at 0.5psid (gpm / lpm)
Gearbox / Storage Tank Max Volume (gal/L) Hydraulic Reservoir Max Volume (gal/L)
DC-RS-3 636 / 2407 800 / 3028 400 / 1514
DC-RS-5 636 / 2407 1300 / 4921 600 / 2271
DC-RS-9 598 / 2265 2400 / 9085 1200 / 4542
DC-RS-15 1534 / 5805 4000 / 15142 L 1800 / 6814
DC-RS-25 1047 / 3964 7000 / 26498 Contact Des-Case
DC-RS-50 860 / 3256 14000 / 52996 Contact Des-Case
DC-RS-75 598 / 2265 21000 / 79494 Contact Des-Case
DC-RS-100 2020 / 7645 30000 / 113562 Contact Des-Case
DC-RS-150 1870 / 7079 50000 / 189271 Contact Des-Case
DC-RS-200 1795 / 6796 75000 / 283906 Contact Des-Case

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.

Steel Adapters
Description Part Number
1" NPT DC-13-4C
2" NPT (DC-RS-3, DC-RS-5, DC-RS-9) DC-13-6C
3" NPT (DC-RS-15, DC-RS-25, DC-RS-50, DC-RS-75) DC-13-10C
4" NPT (DC-RS-15, DC-RS-100, DC-RS-150, DC-RS-200) DC-13-40C
Stainless Steel Adapters
Description Part Number
1" NPT Stainless Steel DC-13-4C-SS
2" NPT Stainless Steel (DC-RS-3, DC-RS-5, DC-RS-9) DC-13-6C-SS
3" NPT Stainless Steel (DC-RS-15, DC-RS-25, DC-RS-50, DC-RS-75) DC-13-10C-SS
4" NPT Stainless Steel (DC-RS-15, DC-RS-100, DC-RS-150, DC-RS-200) DC-13-40C-SS
  • 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

We can also provide independent advice about your oils through modern oil analysis techniques.

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