R Series Transformer Breathers are designed specifically for transformers with refillable desiccant chambers. VRB models are for tanks (diesel, petrol, acetic acid) and include two-way pressure valves for longer desiccant life.
R Series Transformer Breathers use self-indicating silica gel. When the gel changes colour (blue to pink or orange to green) and reaches the indicator line, it’s time to refill.
Yes. R Series Transformer Breathers are refillable. Simply empty the used gel and refill with fresh silica gel. Bulk refills are available in both blue and orange indicator types.
Under normal conditions, a fully charged R Series Transformer Breather can last up to 300 days. Lifespan varies depending on temperature and humidity.
Breather size depends on oil capacity or volume. For example, R Mini suits conservators up to 900L, R up to 1500L, R1 up to 3000L, and R2 up to 4750L. For tanks, select the appropriate VRB model.
R Series Transformer Breathers use low-dusting, beaded, self-indicating silica gel, either orange (non-toxic) or blue (with cobalt chloride). Both change colour as they saturate.
Yes. R Series Transformer Breathers are UV-stabilised, weatherproof, and operate from –50°C to +70°C, making them suitable for outdoor use.
Installation is straightforward. Use a spanner on the flat sections to tighten. VRB models install via the BSP threaded vent connection.
Yes. Both R Series Transformer Breathers and VRB models can be supplied pre-filled with silica gel or empty, ready for your own desiccant filling.
All R Series Transformer Breathers are made from UV-stabilised polycarbonate, designed to withstand harsh UV conditions and outdoor environments without degradation.
Oil bowls are outdated and require high-maintenance servicing. Instead, R Series Transformer Breathers use a double differential mechanical relief valve, which is clean, efficient, and maintenance-free.
Yes. Two R Series Transformer Breathers can be connected using a manifold, effectively doubling desiccant capacity and extending service life.