12 Technical data and dimensions
12.1 General
Basis for the technical data of Pfeiffer Vacuum roots pumps
● Specifications according to PNEUROP committee PN5
● ISO 21360-1; 2012: “Vacuum technology - Standard methods for measuring vacuum-pump per-
formance - Part 1: General description”
● Leakage rate: Determination according to measurement of pressure rise method
● Sound pressure level: distance to vacuum pump 1 m
mbar
bar
Pa
hPa
kPa
Torr | mm Hg
mbar
1
1 · 10
-3
100
1
0.1
0.75
bar
1000
1
1 · 10
5
1000
100
750
Pa
0.01
1 · 10
-5
1
0.01
1 · 10
-3
7.5 · 10
-3
hPa
1
1 · 10
-3
100
1
0.1
0.75
kPa
10
0.01
1000
10
1
7.5
Torr | mm Hg
1.33
1.33 · 10
-3
133.32
1.33
0.133
1
1 Pa = 1 N/m
2
Tbl. 9:
Conversion table: Pressure units
mbar l/s
Pa m
3
/s
sccm
Torr l/s
atm cm
3
/s
mbar l/s
1
0.1
59.2
0.75
0.987
Pa m
3
/s
10
1
592
7.5
9.87
sccm
1.69 · 10
-2
1.69 · 10
-3
1
1.27 · 10
-2
1.67 · 10
-2
Torr l/s
1.33
0.133
78.9
1
1.32
atm cm
3
/s
1.01
0.101
59.8
0.76
1
Tbl. 10:
Conversion table: Units for gas throughput
12.2 Technical data
Classification
Okta 8000 G
Order number
PP G80 001
Flange (in)
DN 300 PN 10
Flange (out)
DN 300 PN 10
Cooling gas connection
DN 150 PN 10
Nominal pumping speed
4 000 – 12 000 m³/h
Nominal pumping speed at 50 Hz
8000 m³/h
Nominal pumping speed at 60 Hz
9600 m³/h
Nominal pumping speed min.
4000 m³/h
Nominal pumping speed max.
12000 m³/h
Ultimate pressure without gas ballast
1.3 · 10
2
hPa
Nominal rotation speed at 50 Hz
1500 rpm
Nominal rotation speed at 60 Hz
1800 rpm
Technical data and dimensions
52/56
