portfolio single project
portfolio single project
portfolio single project

VC series (with mechanical valve)

The best-selling traditional breather type, with mechanical valve


  • Single body design with mechanical inlet valve
  • Interchangeability with DIN series
  • Multiple options in different sizes
  • Multiple assemblies available (up to 45 kg capacity)


VC model VC, VCP series
Silicagel capacity from 1 kg up to 45 kg
Air inlet via bottom cup (protected by aluminum housing)
S/S protection shield upon request
Special flange executions available
Window PMMA or temeped glass
Unscrewing terminals
Download PDF
Full catalogue pdf
Order form pdf



The CEDASPE VC series traditional breathers are used for dehydrating the air before it enters into the transformer conservator. 
Air dehydrating breathers are transparent hollow cylinder tubes which contain chemically pure silicon salt (silica gel) with a colored indicator. 
The air flows inside the transformer due to the thermal contraction of the oil mass and passes through the silica gel; the silica gel absorbs the humidity, indicating the saturation degree by changing color.
The salt contained in the breather, when saturated, can be easily removed and replaced.
The upper and lower parts are made of a non-porous corrosion-proof aluminum alloy casting. The hollow cylinder is made of PMMA (or tempered glass) and is protected by a stainless-steel frame with windows that allow the visual inspection of the silica gel color.
On the bottom side of the breather, a mechanical valve prevents continuous air contact with the silica gel and only allows air to pass in both directions (inlet or outlet) when there is a pressure deficiency or excess inside the transformer conservator.



VC model Silicagel capacity [kg] Transformer oil [kg] Execution Flange type Window Catalogue
VC05 0,35 kg for OLTC conservator Top threaded 1/2"G with bottom valve spring loaded Triangle-shaped with 4 holes both PMMA and tempered glass pdf
VCP 10 1 kg 3500 kg Single body (with bottom oil cup) pdf
VCP 30 3 kg 10000 kg
VC 50-F 5 kg 18000 kg Round-shaped with 4 holes pdf
VC 80-F 8 kg 28000 kg
VC 100-F 10 kg 36000 kg
VC 150-F 15 kg 56000 kg
VC200 20 kg 65000 kg Multiple assembly (double flanged) pdf
VC300 30 kg 100000 kg
VC450 45 kg 150000 kg
Special flange execution pdf
* values calculated for typical european environmental conditions

X Close