The VV-DV series: Breather dryers to protect hydraulics & gears under dusty environments or when minimal pressure build-up is required against moisture damage.

No corrosion inside your tank
No quality degradation of operating oils

Recommended for use on low-breathing systems

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 66

UV resistance

High

Operating temperature

-40°C to +80°C / 125°C

Corrosivity class

C5

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

VV-DV
A
B
C
D
E
F
G
H

Components.

Hover over the components of the adsorber and find out what important tasks they perform to keep your systems dry and clean.

ADSORPTION PROCESS: 
If the oil level in the system drops, air flows in to equalize pressure. This air enters the adsorber via the valves (G) and flows through a coarse filter (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 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 particles condense on the oil demister (E) and drip back into the system. Finer oil particles and aerosols are separated by the activated carbon (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.

Pressure ratios.

Downloads.