Atlas Copco AWC160

Instruction Manual
LRP200000228 Issue A 11
Table 6 – Sealing liquid flow rates: AWC pumps
Sealing liquid flowrate m
3
/h
(Using water at 15°C as sealing liquid)
Type
without a separator
Circuit with separator and re-circulation of working liquid
33-200
mbar
200-500
mbar
500
mbar
33-200
mbar
200-500
mbar
500
mbar
AWC160
0.80
0.35
0.30
0.45
0.25
0.12
AWC220
1.00
0.40
0.35
0.50
0.30
0.12
AWC290
1.20
0.40
0.35
0.60
0.30
0.12
AWC390
1.80
0.45
0.40
0.90
0.40
0.18
2.4 Noise and vibration data
Table 7 – Noise data
Pump
Typical continuous A-weighted emission sound
pressure level (dB) plus uncertainty*† (50 Hz)
AWC160
63
AWC220F
68
AWC290
69
AWC390
73
* Nominal pump rotational speed.
†
Measured at 1 meter free field.
Table 8 – Vibration data
Pump
Vibration velocity levels mm s
-1
rms
*
All pumps
2.8
* Zone boundary A/B according to ISO 20816-1; clauses 6.3.2.3 and 6.3.2.4 and Annex C.
2.5 Sealing liquid supply
2.5.1 General requirements
Standard/Safe Area pumps are configured for internal seals flush supplies and only require a sealing liquid
supply. Your sealing liquid must meet the following requirements:
• You must not use a flammable sealing liquid.
• The liquid(s) must be compatible with the process gases and vapours pumped, and with the
materials of construction of the pump (see Section 2.7).
• During operation, the pump unit must be continually supplied with working-liquid which must be free
of solids such as sand. If necessary, connect a filter on the intake inside.
• The pressure of the sealing liquid supply must be adequate to overcome pressure losses through
the supply pipelines. Adjust the pressure in the feed pipe to approx. 1bar above the necessary
suction pressure.
When the vapour pressure of the sealing liquid is close to the process inlet pressure, the liquid sealing ring