Stäubli filter units help make breathing easier

Stäubli’s new BQR breathing air filter units convert ‘instrument air’ to ‘breathing air’, providing a quality air supply for masks and ventilated suits used in nuclear, chemical, military, waste processing and many other industrial applications.

There are two models in the new range: the BQR 50 has a maximum outflow of 850NL/min and can supply sufficient breathing air for four masks or two half suits or one ventilated suit; while the BQR 150 has a maximum flow rate of 2500NL/min and can supply eight masks or six half suits or four ventilated suits. The units operate without electricity.

Both units are compact, portable and employ a two stage filter system. The first stage submicronic filter, blocks solid particles down to 0.01µm, while the second stage active carbon filter, stops oil vapour and mist down to 0.005mg/m3. A flow regulator and pressure gauge monitors the unit’s performance: a warning red light indicates if the filter is becoming clogged up on the BQR 50; on the BQR 150 a differential pressure gauge provides this warning. Quick and automatic, secure connections of breathing lines to the BQR filter units can be made by using Stäubli’s AQR range of couplings; up to four lines can be connected.