Technical Data | 13
Instruction Manual Supplement DOLPHIN VL Systems_EN_en
33 | 36
VL 0630 A
VL 0750 A
Pumping speed (50Hz / 60Hz)*
m³/h
500 / 578
617 / 710
Ultimate pressure (50Hz / 60Hz)*
hPa (mbar)
abs.
33 / 33
Maximum overpressure (50Hz /
60Hz)
bar(g)
0.5 / 0.5
Nominal motor rating IEC (50Hz /
60Hz)
kW
15.0 / 22.0
18.5 / 30.0
Nominal motor speed (50Hz / 60Hz)
min
-1
1450 / 1750
Permitted motor speed range
min
-1
1000 … 1780
(~34 … 60 Hz)
Noise level (EN ISO 2151)
(50Hz / 60Hz)
dB(A)
≤
75 /
≤
76
Design pressure
bar(g)
0.5
Design temperature
°C
120
Max. allowable gas inlet tempera-
ture
°C
Gas dry
►
120
Gas saturated
►
100
Ambient temperature range
°C
5 … 40
Relative humidity
at 30 °C
90%
Ambient pressure
Atmospheric pressure
Cooling liquid flow rate – plate heat
exchanger
m
3
/h
2.58 / 3.61
3.18 / 4.5
Cooling liquid flow rate – shell and
tube heat exchanger
m
3
/h
4.44-5.16 /
6.12-7.56
5.16-6.78 /
7.86-10.92
Maximum cooling liquid pressure
bar(g)
10
Min. operating liquid density
g/cm
3
0.83
Max. operating liquid viscosity
cP
20
Instrument electrical supply
24 VDC
Weight – Once through (50Hz Eu-
rope / 50 & 60Hz multi-voltage)
kg
518 / 593
606 / 639
Weight – Partial recovery (50Hz Eu-
rope / 50 & 60Hz multi-voltage)
kg
540 / 615
628 / 661
Weight – Total recovery, plate heat
exchanger (50Hz Europe / 50 & 60Hz
multi-voltage)
kg
577 / 652
671 / 704
Weight – Total recovery, shell and
tube heat exchanger (50Hz Europe /
50 & 60Hz multi-voltage)
kg
595 / 680
698 / 732
* Pumping speed and ultimate pressure based on 12°C cooling liquid temperature and water as the
operating liquid. Higher cooling liquid and so operating liquid temperatures will reduce the pump-
ing speed and increase the ultimate pressure that can be achieved.
