3. Technical data
3.1. General technical data
Table 1 General technical data
Item
Description Rating Units
Operating condi-
tions
Intended use Indoor
Ambient temperature range:
Operating
5 to 40 °C
41 to 104 °F
Storage
-45 to 55 °C
-49 to 131 °F
Maximum relative humidity:
80% for temperatures up to
31 °C (87.8 °F) decreasing line-
arly to 50% relative humidity at
40 °C (104 °F)
Maximum operating altitude
2000 m
6561.6 ft
Maximum operating back
pressure
1.2 bar(a)
17.4 psig
Pollution degree 2 (IEC 61010)
Materials in con-
tact with the proc-
ess gas
Pump, shaft and rotors Cast SG iron
Seals PTFE and fluoroelastomer
Gas system
Carbon steel, brass, PTFE and
fluoroelastomer
Degree of protec-
tion
Hazardous electrical sub
system
IP21D (IEC60529)
Lubrication Oil type
PFPE Drynert 25/6 (recommen-
ded)
Fomblin
®
25/6 (alternative)
Krytox
®
1525 (alternative)
T
able 2 General technical data
Characteristics
DWS 750 VSD+ DWS 450 VSD+ Unit
Body dimensions length x width x
height*
1650 x 613 x 1092 1265 x 613 x 1092 mm
65 x 24 x 43 49.8 x 24 x 43 inch
Mass (excluding packaging)
575 532 kg
1267 1172 pound
Noise level (at ultimate with a pi-
ped exhaust)
< 70 dB(A)
07/2021 - ©Atlas CopcoPage 151950840208_A
Technical data
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