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DC-BB - Std Disp Breather


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DC-1 - Std Disp Breather


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DC-2 - Std Disp Breather


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DC-3 - Std Disp Breather


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DC-RS-3 - Rebuildable Steel Breather


Your Price: $829.95


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DC-RS-5 - Rebuildable Steel Breather


Your Price: $999.95


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DC-RS-9 - Rebuildable Steel Breather


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DC-RS-15 - Rebuildable Steel Breather


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DC-RS-25 - Rebuildable Steel Breather


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DC-RS-50 - Rebuildable Steel Breather


Your Price: $1999.95


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DC-RS-75 - Rebuildable Steel Breather


Your Price: $2488.95


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DC-RS-100 - Rebuildable Steel Breather


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DC-RS-200 - Rebuildable Steel Breather


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Desiccant Fuel Tank Breathers

Standard Disposable Desiccant Fuel Tank
Breathers for Diesel Fuel Tanks

Standard Disposable Breather
Specifications

Scroll Down To See
All Models

DCBB Standard Breather

Model

DC-BB

Unit Height

3.9" / 99.06 mm

Unit Diameter

2.52" / 64.1 mm

Connection Size

3/8" Multi-Fit (NPT, BSPP, BSPT)

Amount of Silica Gel

.13 lbs / 0.058 kg

Max. Flow Rate

4.55 @ 1 psid cfm

Filter Efficiency

3µ absolute (β₃≥200)


DC-1 Standard Breather

Model

DC-1

Unit Height

5.31" / 134.9 mm

Unit Diameter

2.52" / 64.1 mm

Connection Size

3/8" Multi-Fit (NPT, BSPP, BSPT)

Amount of Silica Gel

.28 lbs / 0.127 kg

Max. Flow Rate

4.16 @ 1 psid cfm

Filter Efficiency

3µ absolute (β₃≥200)


DC-2 Standard Breather

Model

DC-2

Unit Height

6.125" / 155.6 mm

Unit Diameter

4" / 101.6 mm

Connection Size

1" Multi-Fit (NPT, BSPP, BSPT)

Amount of Silica Gel

.66 lbs / 0.30 kg

Max. Flow Rate

16 @ 1 psid cfm

Filter Efficiency

3µ absolute (β₃≥200)


DC-3 Standard Breather

Model

DC-3

Unit Height

8.125" / 206.4 mm

Unit Diameter

4" / 101.6 mm

Connection Size

1" Multi-Fit (NPT, BSPP, BSPT)

Amount of Silica Gel

1.22 lbs / 0.56 kg

Max. Flow Rate

16 @ 1 psid cfm

Filter Efficiency

3µ absolute (β₃≥200)


DC-4 Standard Breather

Model

DC-4

Unit Height

10.125" / 257.2 mm

Unit Diameter

4" / 101.6 mm

Connection Size

1" Multi-Fit (NPT, BSPP, BSPT)

Amount of Silica Gel

1.88 lbs / 0.84 kg

Max. Flow Rate

16 @ 1 psid cfm

Filter Efficiency

3µ absolute (β₃≥200)


Standard Disposable Breather
Components

Standard Breathers

Click on Graphic
to Enlarge

  1. WATER VAPOR ADSORBENT -- Silica gel adsorbs water from incoming air and can hold up to 40% of its weight. Condition is indicated by change of color from blue to light ink.

  2. FILTER ELEMENTS -- Polyester filter elements at the top and bottom of the breather remove airborne contamination. Unique loops allow particles to release during system exhalation, helping increase breather life.

  3. FOAM PADS -- Foam filters at the top and bottom of the breather capture oil mist and disperse incoming air evenly over filtration and drying areas.

  4. CHECK-VALVES -- High-quality umbrella check-valves that won’t clog or stick are located underneath the unit for added protection from wash down environments. Check-valves isolate equipment from ambient condition, prolonging breather life and protecting system integrity. Available in Extended Series, Extreme Duty, VentGuard, and HydroGuard breathers.

  5. RUGGED HOUSING -- Shock-absorbing polycarbonate casing provides reliable service and easy maintenance on most breathers. Extreme Duty breathers are constructed from a polycarbonate/polybutylteraphtalete alloy for additional strength and chemical compatibility.

  6. INTEGRATED STANDPIPE -- The integrated nylon 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.

  7. HONEYCOMB OIL MIST REDUCER -- The oil mist reducer is situated inside the standpipe, made from polypropylene for maximum chemical compatibility. Mimicking nature’s intricate honeycomb design, this feature allows oil mist to coalesce and drain back into the reservoir, rather than compromising the desiccant. Available in Extended Series breathers.

  8. THREADED MOUNTING -- Internal or external threaded mount allows for durability and stability and easily replaces standard breather caps with one of several adapters.

All diesel fuel storage and equipment tanks draw air into the tank as fuel is pumped out of the tank or consumed by the engine or engines that depend on the fuel for providing the source of its power. If you have a 50 gallon tank, a 1,000 gallon tank, or a 50,000 gallon tank, the fuel being pulled out is displaced by air drawn in through a vent. Without this mechanism, the tank could collapse.

In addition, above ground tanks generally present another problem. Although underground tanks maintain a steady temperature, minimizing expansion and contraction due to temperature changes, they also present expensive problems in monitoring for fuel leaks. For this reason, many operations have opted to adopt above ground tanks. However, during any given day temperature changes cause expansion and contraction of the tank as well as the fuel inside the tank, causing the air to be expelled, and then new air to be drawn as temperatures cool over night, in even when no fuel is being withdrawn or consumed.

But the air being pulled into the tank in both situations is not clean. It contains moisture that condenses and accumulates as water in the bottom of the tank. This air also contains organic components (micro-organisms, bacterial growth, fungal growth, enzyme activity, yeast, mold, pollen and other microbial organic components), and dirt, grit, and other particulates, all of which, in their own special way, contribute to fuel degradation, clogged fuel filters, excessive exhaust smoke, component failure (fuel pumps and injectors), formation of acids, floating debris in the tank, sludge build-up in the tank and foul odors emitting from the tank.

Keeping water out of the tank is the most important undertaking required to maintain good fuel, extending the life of filters and engine components, and maintaining high operating efficiency, and low operating costs from your diesel powered equipment. Not following Best Management Practices, such as making sure fuel tank caps are on tight and have a good seal, and vent pipes are not open to catch rain goes a long way, but doing nothing about the flow of air into and out of your fuel tank contributes greatly to fuel problems.

Although having a protocol in place that calls for checking fuel tanks periodically for water accumulation and removing any water should be an integral part of every Fuel Maintenance Plan, adopting a passive, "never sleeps", component that prevents water, organic components and particulates from entering the fuel tank should be the first step in maintaining optimal fuel quality.

The use of a Des-Case Standard Disposable Desiccant Vent Breather will absorb moisture from the air being drawn into the fuel tank as well as filter the air of particulates, dirt, and the organic components, bacterial and fungal growth present in the air. Just like you would not consider operating your diesel equipment without an air intake filter, you should not think twice about the importance of assuring clean, dry air is being pulled into your fuel tank, especially in such operations located in high humidity regions or locals or operations such as farming, construction, and mining.

Des-Case Standard Breathers provide simple, yet dependable protection from moisture and particulate contamination. These versatile breathers are five times more effective than the leading non-desiccant breathers, providing optimal defense against humidity and air-borne particulates from contaminating your fuel tank. Prevention trumps corrective action.

With a wide range of sizes and features for almost any application and industry, Des-Case breathers simultaneously remove moisture from equipment and storage tanks with silica gel and prevent even the smallest particles from entering your fuel tanks with multi-layer filtration.

The best part is you’ll see a return on investment almost immediately. With fewer breakdowns, production stoppages, and reduced preventative maintenance costs you’ll run more efficiently and create less waste, all while increasing the working life of your equipment.

These disposable Standard Breathers provide simple, yet dependable protection from moisture and particulate contamination in equipment and fuel storage tanks. five times more effective than the leading non-desiccant breathers, they provide optimal defense against humidity for your application.

APPLICATIONS:

  • Small Fuel Storage Tanks

  • Equipment Fuel Tanks

  • Emergency Generator Tanks

  • Totes

  • Storage Drums

  • Remote Applications

Des-Case Standard Breathers are designed for use in a wide range of locations and applications.

Des-Case Disposable Standard Breathers

OPERATING ENVIRONMENTS:

  • General Use

  • Indoors

  • Cold Weather Environments

  • High Humidity

  • Wash-downs

What Are Desiccant Vent Breathers?

Des-Case Disposable Standard Breathers are simple, yet dependable protection. The outer body is a resiliant clear polycarbonate providing bi-directional, controlled airflow incorporating a water vapor absorbent and multi-tiered particulate filtration to 3-micron absolute. As the silica gel absorbs water from incoming air, the color changes from blue to pink indicating that the breather has reached capacity, allowing for ease in monitoring when replacement is needed.



Rebuildable Steel Desiccant Fuel Tank Breathers for Diesel Fuel Tanks

Rebuildable Steel Desiccant
Breather Specifications

Scroll Down To See
All Models

DC-RS-3

Model

DC-RS-3

Unit Height
(in / mm)

11.5 / 292

Unit Diameter
(in / mm)

10.13 / 257.2

Connection Size

2"

Amount of Silica
Gel (lbs / kg)

3 / 1.36

Max. Flow
Rate (cfm)

85 @ 0.5 psid

Max. Flow
Rate (lpm)

2407

Filter Efficiency

1µ absolute
(β₁≥1000)

Operating Temp.
Range (°F)

-20° to 220°

Operating Temp.
Range (°C)

-29° to 104°


DC-RS-5

Model

DC-RS-5

Unit Height
(in / mm)

13.75 / 349

Unit Diameter
(in / mm)

10.13 / 257.2

Connection Size

2"

Amount of Silica
Gel (lbs / kg)

5 / 2.27

Max. Flow
Rate (cfm)

85 @ 0.5 psid

Max. Flow
Rate (lpm)

2407

Filter Efficiency

1µ absolute (β₁≥1000)

Operating Temp.
Range (°F)

-20° to 220°

Operating Temp.
Range (°C)

-29° to 104°


DC-RS-9

Model

DC-RD-9

Unit Height
(in / mm)

18.25 / 646

Unit Diameter
(in / mm)

10.13 / 257.2

Connection Size

2"

Amount of Silica
Gel (lbs / kg)

9 / 4.08

Max. Flow
Rate (cfm)

80 @ 0.5psid

Max. Flow
Rate (lpm)

2265

Filter Efficiency

1µ absolute (β₁≥1000)

Operating Temp.
Range (°F)

-20° to 220°

Operating Temp.
Range (°C)

-29° to 104°


DC-RS-15

Model

DC-RS-15

Unit Height
(in / mm)

19.25 / 489

Unit Diameter
(in / mm)

15.5 / 393.7

Connection Size

3"

Amount of Silica
Gel (lbs / kg)

15 / 6.8

Max. Flow
Rate (cfm)

205 @ 0.5 psid

Max. Flow
Rate (lpm)

5805

Filter Efficiency

1µ absolute (β₁≥1000)

Operating Temp.
Range (°F)

-20° to 220°

Operating Temp.
Range (°C)

-29° to 104°


DC-RS-25

Model

DC-RS-25

Unit Height
(in / mm)

22.5 / 571

Unit Diameter
(in / mm)

15.5 / 393.7

Connection Size

3"

Amount of Silica
Gel (lbs / kg)

25 / 11.34

Max. Flow
Rate (cfm)

140 @ 0.5 psid

Max. Flow
Rate (lpm)

3964

Filter Efficiency

1µ absolute (β₁≥1000)

Operating Temp.
Range (°F)

-20° to 220°

Operating Temp.
Range (°C)

-29° to 104°


DC-RS-50

Model

DC-RS-50

Unit Height
(in / mm)

31.25 / 794

Unit Diameter
(in / mm)

15.5 / 393.7

Connection Size

3"

Amount of Silica
Gel (lbs / kg)

50 / 22.68

Max. Flow
Rate (cfm)

115 @ 0.5 psid

Max. Flow
Rate (lpm)

3256

Filter Efficiency

1µ absolute (β₁≥1000)

Operating Temp.
Range (°F)

-20° to 220°

Operating Temp.
Range (°C)

-29° to 104°


DC-RS-75

Model

DC-RS-75

Unit Height
(in / mm)

39.75 / 1010

Unit Diameter
(in / mm)

15.5 / 393.7

Connection Size

3"

Amount of Silica
Gel (lbs / kg)

75/34.02

Max. Flow
Rate (cfm)

80 @ 0.5 psid

Max. Flow
Rate (lpm)

2265

Filter Efficiency

1µ absolute (β₁≥1000)

Operating Temp.
Range (°F)

-20° to 220°

Operating Temp.
Range (°C)

-29° to 104°


DC-RS-100

Model

DC-RS-100

Unit Height
(in / mm)

31 / 787

Unit Diameter
(in / mm)

23.5 / 596.9

Connection Size

4"

Amount of Silica
Gel (lbs / kg)

100 / 45.36

Max. Flow
Rate (cfm)

270 @ 0.5 psid

Max. Flow
Rate (lpm)

7645

Filter Efficiency

1µ absolute (β₁≥1000)

Operating Temp.
Range (°F)

-20° to 220°

Operating Temp.
Range (°C)

-29° to 104°


DC-RS-150

Model

DC-RS-150

Unit Height
(in / mm)

36.75 / 933

Unit Diameter
(in / mm)

23.5 / 596.9

Connection Size

4"

Amount of Silica
Gel (lbs / kg)

150 / 68.04

Max. Flow
Rate (cfm)

250 @ 0.5 psid

Max. Flow
Rate (lpm)

7079

Filter Efficiency

1µ absolute (β₁≥1000)

Operating Temp.
Range (°F)

-20° to 220°

Operating Temp.
Range (°C)

-29° to 104°


DC-RS-200

Model

DC-RS-200

Unit Height
(in / mm)

42.75 / 1086

Unit Diameter
(in / mm)

23.5 / 596.9

Connection Size

4"

Amount of Silica
Gel (lbs / kg)

200 / 90.72

Max. Flow
Rate (cfm)

240 @ 0.5 psid

Max. Flow
Rate (lpm)

6796

Filter Efficiency

1µ absolute (β₁≥1000)

Operating Temp.
Range (°F)

-20° to 220°

Operating Temp.
Range (°C)

-29° to 104°

Rebuildable Steel Breather
Components

Des-Case Rebuildable Steel Breathers

Click on Graphic
to Enlarge

Rebuild Kits for Rebuildable Steel Breathers

Replacement Filter Element: Captures airborne contamination to 1-micron absolute

Des-Case Rebuildable Steel Breathers Bag

Click on Graphic
to Enlarge

Desiccant Bag Filter: Polypropylene bag has handles for easy removal and replacement containing the Clear silica gel that absorbs water from incoming air

Des-Case Rebuildable Steel Breathers Filter

Click on Graphic
to Enlarge

Outside Sight Glass Indicator:Silica gel changes color from blue to pink when the unit requires rebuilding

Des-Case Rebuildable Steel Breathers Indicator

Click on Graphic
to Enlarge

Gasket: Seals breather at removable lid.

Foam Pad: Disperses incoming air evenly over filtration and drying areas.

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Optional Products

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DC-RS-3-RK - Rebuild Kit for DC-RS-3


Your Price: $169.95


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DC-RS-5-RK - Rebuild Kit for DC-RS-5


Your Price: $189.95


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DC-RS-9-RK - Rebuild Kit for DC-RS-9


Your Price: $235.95


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DC-RS-15-RK - Rebuild Kit for DC-RS-15


Your Price: $319.95


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DC-RS-25-RK - Rebuild Kit for DC-RS-25


Your Price: $415.95


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DC-RS-50-RK - Rebuild Kit for DC-RS-50


Your Price: $655.95


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DC-RS-75-RK - Rebuild Kit for DC-RS-75


Your Price: $899.95


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DC-RS-100-RK - Rebuild Kit for DC-RS-100


Your Price: $1185.95


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DC-RS-150-RK - Rebuild Kit for DC-RS-150


Your Price: $1595.95


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DC-RS-200-RK - Rebuild Kit for DC-RS-200


Your Price: $1999.95


Rebuildable Steel Breathers were designed specifically for applications such as bulk storage tanks or large circulating 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. Rebuildable steel breathers accommodate large air flow rates with minimal pressure drops.

As wet, dirty air is drawn through the unit, the hygroscopic agent extracts moisture and a 1-micron micro-glass pleated filter element removes solid particulate. When the air is expelled from the container, the foam pad cleans itself by releasing dirt back into the atmosphere. The hygroscopic agent is partially reactivated by the dry air passing back through, thereby permitting longer periods between replacing components (or rebuilding).

Rebuild kits including 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.