Transformer breathers are engineered to provide highly effective moisture protection for large-capacity tanks. Their robust design allows different mounting options through a flange or a pipe thread connection.

Moisture Protection for Tanks

The desiccant container, constructed from durable mild steel, is removable for easy maintenance and protected with a phosphate and powder coat finish for durability and reliability. The breathers come with a two-way pressure valve in the base plate to ensure air enters only when there is a negative differential air pressure.

The breathers also have a robust, shatter-proof polycarbonate window, enhanced with UV stabilisation for durability and clear visibility. This window allows monitoring, offering a transparent view of the orange silica gel inside.

Easy Maintenance and Reliability

The silica gel changes colour from orange to green, providing a convenient visual indicator for when replacement is necessary. Additionally, the breather’s construction is reinforced with four metal tie rods and threaded nuts, ensuring a secure and reliable fastening between the top and bottom endplates, enhancing its overall structural integrity.

Replacing the indicating silica gel by releasing the threaded nuts. All threads in the breathers conform to BS21 and ISO7-1 standards, ensuring compatibility and adherence to industry specifications. Regarding sizing, the V, W, and X transformer breathers have a ¾” female pipe thread, while the Y and Z models have a 1” female pipe thread.

  • Safeguard transformers against moisture damage
  • Simple desiccant replacement without disconnection
  • Mild steel, powder coat finish, and Aluminium castings
  • Polycarbonate window for desiccant monitoring
  • Flange or pipe thread options available
  • ISO9001/2008 design with IP65 rating
  • Compatible with 1250 kVA to 750 mVA Transformers
  • Adsorption capacity of up to 25%
  • Operating Temperature Range -50°C to 70°C
Size  Overall Length (B)  Overall Diameter (A)  Weight of Desiccant  Max Oil Content
 V  375mm  255mm  5kg  11,350 Litres
 W  555mm  255m  10kg  22,700 Litres
 X  735mm  355mm  14.5kg  34,050 Litres
 Y  485mm  355mm  17.5kg  45,450 Litres
 Z  645mm  355mm  27.3kg  68,150 Litres

V, W, X, Y & Z Transformer Breathers Product Brochure: Download