Transformer Breathers

Why Choose Hawke?
When specifying products used in hazardous situations you need the utmost confidence, we have many years of experience in the manufacture and supply of Desiccant Breathers to industries where control of humidity ingress is required. Our products comply with the latest international quality standard (EN ISO 9001).

The Purpose Of A Hawke Desiccant Breather
The purpose of a Hawke Desiccant Breather is to effectively remove water vapour from the air entering Transformers or similar equipment. Without such controls reduced efficiency or possible failure could result. Therefore, it is imperitive that the level of humidity in the air space in the top of the conservator tank is kept to a minimum, hence avoiding any reduction in the effectiveness of the cooling/insulating medium. Temperature gradients can result in a change in the volume of the cooling medium and/or air space. The Hawke Desiccant Breather provides the customer with the most cost effective and reliable method of preventing moisture entering the equipment during such changes.

Why Choose A Hawke Desiccant Breather? Hawke Desiccant Breathers are made up of four basic parts, making assembly as simple as possible and therefore keeping servicing time down to an absolute minimum.

Hawke Breathers are filled with a Desiccant gel which changes colour from orange to clear as it absorbs water vapour. Attached to every Hawke Breather is a Desiccant colour change indicator, which allows easy assessment of the Breathers status. When the desiccant becomes saturated it can be reactivated or replaced, dependant on the type of breather.

The HB range of Desiccant Breathers have a strong metal shield giving maximum protection to the polycarbonate charge, spare charges are available on request.

Independent extensive testing of the oil seal has proved that it is more effective than mechanical seals. Making the Hawke Desiccant Breather the best on the market. Principle Of Operation

breathers principle of operation When the charge is screwed into the top casting, it automatically produces a seal, this method is also used to create a seal between the cartridge and the oil cup.

All threaded portions are enclosed, this eliminates the danger of corrosion.

The positioning of the annular baffles ensure that any air passing through the charge circulates through the maximum quantity of Desiccant gel. This eliminates the problem of the air "channelling" through the centre, hence giving a clear indication of the Desiccant state at the periphery.

The lower casting acts as an oil cup as well as a protective screen retainer. Whilst the red line on the transparent tube gives a clear indication of the required oil level.