Classification
Hena 201
Hena 251
Emission sound pressure level with-
out gas ballast at 50 Hz
≤ 72 dB(A)
≤ 72 dB(A)
Emission sound pressure level with-
out gas ballast at 60 Hz
≤ 74 dB(A)
≤ 74 dB(A)
Cooling method, standard
Air
Air
Continuous gas temperature, max.
80 °C
80 °C
Operating fluid filling
6.5 l
6.5 l
Ambient temperature
12 – 40 °C
12 – 40 °C
Transport and storage temperature
-25 – 55 °C
-25 – 55 °C
Motor version
3-ph motor
3-ph motor
Mains requirement: voltage 50 Hz
190–200/220–230/380–400 V 190–200/220–230/380–400 V
Mains requirement: voltage 60 Hz
208/220/230/440/460 V
208/220/230/440/460 V
Mains requirement: voltage (range)
±5 %
±5 %
Rated power 50 Hz
5.5 kW
7.5 kW
Rated power 60 Hz
6.6 kW
9.2 kW
Rotation speed at 50 Hz
1500 rpm
1500 rpm
Rotation speed at 60 Hz
1800 rpm
1800 rpm
Protection category
IP55
IP55
Motor protection
PTC
PTC
Switch included
No
No
Mains cable included
No
No
Weight
182 kg
227 kg
Tbl. 17:
Technical data Hena 201 | Hena 251
Classification
Hena 301
Hena 301 S
Hena 301
Order number
PK D03 450
PK D03 455
PK D03 461
Connection: At-
mospheric side
Female thread G 2"
Female thread G 2"
Female thread G 2"
Connection: Vac-
uum side
Female thread G 2"
Female thread G 2"
Female thread G 2"
Nominal pumping
speed at 50 Hz
300 m³/h
300 m³/h
300 m³/h
Nominal pumping
speed at 60 Hz
360 m³/h
360 m³/h
360 m³/h
Ultimate pressure
with gas ballast
≤ 7 · 10
-1
hPa
≤ 7 · 10
-1
hPa
≤ 7 · 10
-1
hPa
Ultimate pressure
without gas bal-
last
≤ 3 · 10
-1
hPa
≤ 3 · 10
-1
hPa
≤ 3 · 10
-1
hPa
Continuous inlet
pressure, max.
800 hPa
100 hPa
800 hPa
Leak rate safety
valve
≤ 8 · 10
-3
Pa m³/s
≤ 8 · 10
-3
Pa m³/s
≤ 8 · 10
-3
Pa m³/s
Exhaust pressure,
max.
Atmospheric pressure
Atmospheric pressure
Atmospheric pressure
Exhaust pressure,
min.
Atmospheric pressure
Atmospheric pressure
Atmospheric pressure
Water vapor ca-
pacity 50 Hz
5000 g/h
5000 g/h
5000 g/h
Water vapor ca-
pacity 60 Hz
5800 g/h
5800 g/h
5800 g/h
Water vapor toler-
ance at 50 Hz
40 hPa
40 hPa
40 hPa
Technical data and dimensions
51/60
