BA450E and BA550E Mobile Breathing Air Systems 

The BA450E has a fully integrated automatic fail-safe emergency air reserve and alarm system. In the event a drop in the primary air pressure an audible alarm will be activated and the air will continue be supplied from two 9-litre 200 bar cylinders (optional 300 bar also available). 

 

The control panel has a status indicator which in the event of a failure of the primary air will automatically change from green to red. If the air pressure in the HP cylinders drops below 140 bar this will also activate the alarm and status indicator on the control panel. 

 

The BA550E does not have a emergency reserve air supply, and operates at slightly lower pressure, consequently it provides a higher flow rate. They both incorporate a rotary vane compressor powered by a three phase electric motor c/w a DOL starter. 

 

The compressed air generated is passed through a fan assisted aftercooler before proceeding through a multi-stage filtration system which removes particulates, reduces oil contamination to <0.003 parts per million and also removes hydrocarbon vapours. 

 

The air is then passed through a membrane dryer to ensure a 5°C suppression of dewpoint in ambient temperatures >0°C with air quality exceeding the criteria laid down in BS EN12021. Breathing Air is then supplied to 2 flow protected Draeger/Scott compatible outlets.