The best-selling traditional breather type
Air dehydrating breathers are transparent hollow cylinder tubes which contain chemically pure silica gel. It absorbs the humidity, indicating the saturation degree by changing color. 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.
Different variants are available for different transformer sizes, with mechanical or hydraulic valves and various flanges.