The VV-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

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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

Material information

Polyamide(PA), polycarbonate (PC), polyvinylchloride (PVC), FKM, GIEBEL Xdry®, activated carbon

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

Adsorber components and their tasks.

Plastic housing (A): Protects the inner workings of the adsorber. The disposable plastic housing is durable and UV-resistant.

Activated carbon disk (B): Adsorbs oil particles and aerosols from exhaust air. The activated carbon layer not only protects the desiccant from contact with oil, but also prevents harmful oil mist from escaping the system.

3µm paper filter (C): Filters finest dust and dirt particles from supply air and thus protects the system from getting filthy.

GIEBEL Xdry® (D): 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.

Slosh protection (E): Prevents oil splashes and small oil droplets from escaping. They condense on the slosh protection and drip back into the system.

Foam filter disk (F): Filters coarse dust and dirt particles from the supply air.

Opening (G): Enables air exchange with the environment when the system draws in or pushes out air for pressure equalization.

Thread (H): Connects system and adsorber. Various thread types are available.

ADSORPTION PROCESS:
If the oil level in the system drops, air flows in to equalize pressure. This air enters the adsorber via the openings (G) and flows through a foam filter disk (F), which separates larger dirt and dust particles. The GIEBEL Xdry® filling (D) then separates moisture up to 2% RH (average 10% RH). A 3μm paper filter (C) 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. This air contains oil particles and aerosols. Larger oil drops condense on the slosh protection (E) and drip back into the system. Finer oil particles and aerosols are separated by the activated carbon disk (B). Some of the previously adsorbed moisture is removed from the desiccant as the air flows out, ensuring cyclical self-regeneration.

Clean air escapes the system.

Technical data according to size.


ADSORBER	VV-D 1M	VV-D 1L	VV-D 2S	VV-D 2M	VV-D 2L	VV-D 3S	VV-D 3M	VV-D 3L	VV-D 5M	VV-D 5L
TOTAL WEIGHT (KG)	0,18	0.28	0.41	0.66	0.9	0.75	1.31	2.07	3.02	4.45
GIEBEL XDRY® (KG)	0.08	0.15	0.2	0.3	0.5	0.4	0.8	1.4	2.2	3.3
COLOR-CHANGE CAPACITY (ML)	28	53	70	105	175	140	280	490	770	1155
HEIGHT (MM)	103	147	85	155	212.33	135.3	228.33	329	269	369
DIAMETER (MM)	60/63	60/63	90/94	90/94	90/94	110/114	110/114	110/114	150/154	150/154
CONNECTION	BSP, NPT (Metric with adapter)	BSP, NPT (Metric with adapter)	BSP, NPT (Metric & Slipfit with adapter)	BSP, NPT (Metric & Slipfit with adapter)	BSP, NPT (Metric & Slipfit with adapter)	BSP, NPT (Metric & Slipfit with adapter)	BSP, NPT (Metric & Slipfit with adapter)	BSP, NPT (Metric & Slipfit with adapter)	BSP, NPT (Metric & Slipfit with adapter)	BSP, NPT (Metric & Slipfit with adapter)
VALVES (IN-OUT)	0-0	0-0	0-0	0-0	0-0	0-0	0-0	0-0	0-0	0-0