Prevent moisture contamination in transformers and electrical equipment with UV-stabilised Transformer Breathers. Featuring self-indicating silica gel, they filter out water vapour, ensuring stable transformer performance and long-term equipment protection. Designed for power plants, substations, and industrial applications, they provide reliable moisture control by absorbing humidity from incoming air. The clear polycarbonate body allows easy visual monitoring of silica gel saturation, making maintenance simple and efficient.
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R Transformer Breather (mini)
Priced from $109.000 per unit -
R Transformer Breather (small)
Priced from $155.000 per unit -
R1 Transformer Breather (medium)
Priced from $198.000 per unit -
R2 Transformer Breather (large)
Priced from $229.000 per unit -
R Transformer Breather (X Large)
Priced from $295.000 per unit -
Valved Reservoir Breather
Priced from $249.000 per unit -
Indicating Silica Gel (7)
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Prevent transformer failure and extend equipment life with our R Series Transformer Breathers, designed to effectively remove moisture from incoming air and maintain the integrity of transformer oil. Made from UV-stabilised polycarbonate, these durable breathers feature a clear body for easy visibility, allowing operators to monitor desiccant conditions at a glance.
Why Choose Pro-Ex Transformer Breathers?
- Highly efficient moisture control – Prevents oil degradation and thickening in conservator tanks
- Self-indicating Silica Gel – Changes colour when saturation levels are reached, eliminating guesswork
- Environmentally friendly & cost-effective – Reusable design with easy desiccant replacement
- No oil required – Avoids maintenance issues related to traditional oil-filled breathers
- Easy installation & low maintenance – No specialised tools or extensive training needed
Simple Maintenance & Desiccant Replacement
- Silica Gel refills available in blue or orange, with bulk options for cost savings
- Quick & hassle-free installation with a ¾” female pipe thread connection
- Approximate charge life of 300 days, ensuring long-lasting performance
For reliable, cost-effective, and eco-friendly transformer moisture protection, trust Pro-Ex R Series Transformer Breathers.
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.
No. Both colour options for R Series Transformer Breathers work the same. Orange turns green, and blue turns pink when saturated, providing a clear visual indicator.
Transformer breathers prevent moisture from entering transformers or reservoirs by filtering incoming air through silica gel desiccant. R Series Transformer Breathers help maintain oil integrity and protect internal components.