Gas preparation unit BPG-5M

The BPG-5M gas preparation unit is designed for preliminary preparation (filtration, drying, stabilization of operating parameters) of gases before they are supplied mainly to devices for flame spectral analysis and other devices that require purification of working gases.

The main area of ​​application is the preparation of gases for flame atomic absorption spectrometers, including KVANT-2m , KVANT-2AT , KVANT -2A , KVANT.Z , KVANT.Z1 , mercury-hydride generators (GRG) and other analytical equipment.

The unit is designed for the preparation of the following gases:



nitrous oxide,


compressed air.


Absolute fineness of filtration, µm 5
Mean time between failures, hour, not less 2500
Full service life, years, not less 6
Overall dimensions of the block, mm, no more 510 x 575 x 130
Block mass, kg, no more 5

Gas inlet pressure range:


Inlet pressure, MPa

Inlet pressure, atm


from 0.04 to 0.12

from 0.4 to 1.2


from 0.14 to 0.18

from 1.4 to 1.8

Nitrous oxide

from 0.50 to 0.60

from 5.0 to 6.0


from 0.40 to 0.60

from 4.0 to 6.0


from 0.30 to 0.45

from 3.0 to 4.5

Block modules provide the following gas flow rates :

Spectrometer air, l/min, not less than 20
Air for GRG, l/min, not less than 5
Nitrous oxide, l/min, not less than 20
Acetylene, l/min, not less than 7
Propane, l/min, not less 1
Argon, l/min, not less 5

Operating conditions

Ambient temperature, °С from +10 to +35
Maximum relative humidity at +25 °С, % 80
Atmospheric pressure, MPa (atm) from 0.084 to 0.107 (from 0.84 to 1.07)