13 Technical data and dimensions
13.1 General
Basis for the technical data of Pfeiffer Vacuum rotary vane pumps:
● Specifications according to PNEUROP committee PN5
● ISO 21360-1: 2016: “Vacuum technology - Standard methods for measuring vacuum-pump per-
formance - Part 1: General description”
● Leak test to ascertain the integral leakage rate according to EN 1779: 1999 technique A1; with
20 % helium concentration, 10 s measurement duration
● Sound pressure level according to ISO 3744, class 2
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. 15:
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. 16:
Conversion table: Units for gas throughput
13.2 Technical data
Classification
Hena 201
Hena 251
Order number
PK D03 400
PK D03 432
Connection: Atmospheric side
Female thread G 2"
Female thread G 2"
Connection: Vacuum side
Female thread G 2"
Female thread G 2"
Nominal pumping speed at 50 Hz
200 m³/h
250 m³/h
Nominal pumping speed at 60 Hz
240 m³/h
300 m³/h
Ultimate pressure with gas ballast
≤ 7 · 10
-1
hPa
≤ 7 · 10
-1
hPa
Ultimate pressure without gas bal-
last
≤ 3 · 10
-1
hPa
≤ 3 · 10
-1
hPa
Continuous inlet pressure, max.
800 hPa
800 hPa
Leak rate safety valve
≤ 8 · 10
-3
Pa m³/s
≤ 8 · 10
-3
Pa m³/s
Exhaust pressure, max.
Atmospheric pressure
Atmospheric pressure
Exhaust pressure, min.
Atmospheric pressure
Atmospheric pressure
Water vapor capacity 50 Hz
4000 g/h
4500 g/h
Water vapor capacity 60 Hz
4600 g/h
5200 g/h
Water vapor tolerance at 50 Hz
40 hPa
40 hPa
Water vapor tolerance at 60 Hz
40 hPa
40 hPa
Technical data and dimensions
50/60
