R Series Transformer Breathers


Manufactured with a UV stabilised and shatterproof carbonate window, the R Series Transformer Breather features a transparent and clear body that allows users to check the desiccant condition with ease. With a two-way, low-pressure valve fitted in the breather base, this ensures that air only enters the breather when there is a negative pressure differential within the equipment. The R Series Transformer Breather is also mounted with a ¾” female pipe thread connection at the top to allow easy filling and emptying of desiccant inside the breather. To meet the different requirements, the R Series is available in various sizes, R, R1, and R2. The R3 Breather consists of two R1 Breathers, fully saturating one breather before the other. This hence provides handles with more time allowance as they are only required to replace the desiccants once both breathers are fully saturated.

Key Features

  • All-round visual saturation indicator
  • Definitive colour change saturation indication
  • High-performance plastic or metal construction
  • ISO9001/2008 design approved
  • IP65 Rating
  • Low dusting beaded ENVIROGEL adsorbent
  • Operating Temperature Range: –50°C to 70°C
  • Simple installation
  • Suitable for 1250 kVA to 750 mVA Transformers
  • Up to 25% adsorption capacity
  • Vandal-proof
  • Weather-resistant

Selection Guide

Size Max Oil Contents (Litres) Desiccant Weight (kg) Overall Length (A) (mm) Overall Length (B) (mm)
R 1500 0.6 158 108
R1 3000 1.2 250 108
R2 4750 1.9 352 108

R Series Transformer Breather Brochure