The BD-D series: Breather dryers to prevent moisture damage in hydraulics, gears, barrels & IBC with constant air exchange & short maintenance intervals.
No corrosion inside your tank or barrel
No quality degradation of operating oils or contained substances
Minimal pressure build-up, even with high flow rates
Suitable for indoor, outdoor & offshore use
Buy ONLINE ComponentS & Their Tasks Technical data Loading & color indicator Downloads
Disposable
Easy to change single-use adsorber
ATEX
Not suitable for explosion protection zones
Offshore suitable
Suitable for use in salty air
REACH compliant
Safe and harmless product
RoHS compliant
Safe and harmless product
IP protection class
IP 63
UV resistance
High
Operating temperature
-40°C to +80°C
Corrosivity class
C5
Material information
Polyamide(PA), polycarbonate (PC), FKM, Silica gel Orange-Green
Suitable substances
Hydraulic oil, gear oil, biological oil, vegetable oil, transformer oil, insulating oil, AdBlue (Urea), diesel fuel, isocyanates, polyols, anhydrite, adhesives, resins, amines, PU metal catalysts, flame retardants, diethanolamine, silicone
Filter components and their tasks.
Plastic housing (A): Protects the inner workings of the breather dryer. The disposable plastic housing is durable and UV-resistant.
3µm paper filter (B): Filters finest dust and dirt particles from supply air and thus protects the system from getting filthy.
Silica gel orange-green (C): Ensures effective drying of the air flowing through and indicates by changing color from orange to green when it is time to replace the adsorber.
Foam filter disk (D): Filters coarse dust and dirt particles from the supply air.
Opening (E): Enables air exchange with the environment when the system draws in or pushes out air for pressure equalization.
Adapter (F): Connects system and breather dryer. Adapter are separately available.
过滤器组件及其功能。
塑料外壳 (A): 保护通气干燥器的内部组件。一次性塑料外壳坚固耐用，且具有抗紫外线性能。
3微米纸质滤芯 (B): 可过滤送风中的细微灰尘和污垢颗粒，从而防止系统受污染。
橙绿色硅胶 (C): 确保流经的空气得到有效干燥，并在需要更换吸附器时通过颜色从橙色变为绿色来提示。
泡沫过滤盘 (D): 过滤进气中的粗大灰尘和污垢颗粒。
开场 (E): 当系统为平衡压力而吸入或排出空气时，可实现与环境之间的空气交换。
适配器 (F): 用于连接系统与呼吸干燥器。适配器需单独购买。
ADSORPTION PROCESS:
If the oil level in the system drops, air flows in to equalize pressure. This air enters the breather via the openings (E) and flows through a foam filter disk (D), which separates larger dirt and dust particles. The silica gel filling (C) then separates moisture up to 2% RH (average 10% RH). A 3μm paper filter (B) removes even the finest dirt and dust particles from the supply air.
Dry and clean air enters the system.
DESORPTION PROCESS:
If the oil level rises, air is pressed out of the system. Some of the previously adsorbed moisture is removed from the desiccant as the air flows out, ensuring cyclical self-regeneration.
Technical data according to size.
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 |
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 |
 |
|
|---|---|---|---|---|---|
| ADSORBER | BD-D 1M | BD-D 1L | BD-D 2M | BD-D 2L | BD-D 3M |
| TOTAL WEIGHT (KG) |
0,2 | 0,3 | 0,7 | 1,0 | 1,4 |
| SILICA GEL (KG) |
0,08 | 0,15 | 0,3 | 0,5 | 0,8 |
| COLOR-CHANGE CAPACITY (ML) |
28 | 53 | 120 | 200 | 320 |
| HEIGHT (MM) |
84 | 128 | 152 | 210 | 226 |
| CASE DIAMETER (MM) |
60 | 60 | 90 | 90 | 110 |
| SCREW-IN DIAMETER (MM) |
63 | 63 | 94 | 94 | 114 |
| CONNECTION | BSP, NPT | BSP, NP | BSP, NP | BSP, NP | BSP, NP |
| VALVES (IN-OUT) |
0-0 | 0-0 | 0-0 | 0-0 | 0-0 |
|
|
|
|
|
|
|---|---|---|---|---|---|
| ADSORBER | BD-D 1M | BD-D 1L | BD-D 2M | BD-D 2L | BD-D 3M |
| TOTAL WEIGHT (KG) |
0,2 | 0,3 | 0,7 | 1,0 | 1,4 |
| SILICA GEL (KG) |
0,08 | 0,15 | 0,3 | 0,5 | 0,8 |
| COLOR-CHANGE CAPACITY (ML) |
28 | 53 | 120 | 200 | 320 |
| HEIGHT (MM) |
84 | 128 | 152 | 210 | 226 |
| CASE DIAMETER (MM) |
60 | 60 | 90 | 90 | 110 |
| SCREW-IN DIAMETER (MM) |
63 | 63 | 94 | 94 | 114 |
| CONNECTION | BSP, NPT | BSP, NP | BSP, NP | BSP, NP | BSP, NP |
| VALVES (IN-OUT) |
0-0 | 0-0 | 0-0 | 0-0 | 0-0 |
|
|
|
|
|
|
|---|---|---|---|---|---|
| 吸附器 | BD-D 1M | BD-D 1L | BD-D 2M | BD-D 2L | BD-D 3M |
| 总重量 (千克) |
0,2 | 0,3 | 0,7 | 1,0 | 1,4 |
| 硅胶 (千克) |
0,08 | 0,15 | 0,3 | 0,5 | 0,8 |
| 变色能力 (毫升) |
28 | 53 | 120 | 200 | 320 |
| 高度 (毫米) |
84 | 128 | 152 | 210 | 226 |
| 表壳直径 (毫米) |
60 | 60 | 90 | 90 | 110 |
| 螺纹直径 (毫米) |
63 | 63 | 94 | 94 | 114 |
| 连接 | BSP, NPT | BSP, NP | BSP, NP | BSP, NP | BSP, NP |
| 阀门 (进出) |
0-0 | 0-0 | 0-0 | 0-0 | 0-0 |
|
|
|
|
|
|
|---|---|---|---|---|---|
| 吸附器 | BD-D 1M | BD-D 1L | BD-D 2M | BD-D 2L | BD-D 3M |
| 总重量 (千克) |
0,2 | 0,3 | 0,7 | 1,0 | 1,4 |
| 硅胶 (千克) |
0,08 | 0,15 | 0,3 | 0,5 | 0,8 |
| 变色能力 (毫升) |
28 | 53 | 120 | 200 | 320 |
| 高度 (毫米) |
84 | 128 | 152 | 210 | 226 |
| 表壳直径 (毫米) |
60 | 60 | 90 | 90 | 110 |
| 螺纹直径 (毫米) |
63 | 63 | 94 | 94 | 114 |
| 连接 | BSP, NPT | BSP, NP | BSP, NP | BSP, NP | BSP, NP |
| 阀门 (进出) |
0-0 | 0-0 | 0-0 | 0-0 | 0-0 |
How to interpret the color of your breather dryer.
Unloaded
The breather dryer is completely orange in color.
This means that it has adsorbed little or no moisture so far.
Loaded from above
The breather dryer is green at the top and orange at the bottom.
This means that the adsorber has mainly dried the outgoing air. There was a high level of moisture in the system.
Loaded from below
The breather dryer is orange at the top and green at the bottom.
This means that the adsorber has mainly dried the incoming air. The system is reliably protected.
Fully loaded
The breather dryer is completely green.
This means it is time to replace the adsorber or desiccant. The adsorber has reached its maximum absorption capacity!