Speck pumpen V 155 - Execution with gas ejector; Setting up of the unit

OPERATING INSTRUCTIONS
21
15.5.4 Execution with gas ejector
In order to achieve certain operating points the
vacuum pump will be provided with a gas
ejector pump.
15.6 Setting up of the unit
A side mounted liquid separator has to be
installed thus that the liquid discharge is at
the same level as the shaft.
The liquid separator is mounted to the
discharge nozzle of the pump..
Select an appropriate operating mode such
that as little fresh liquid as possible is needed.
15.6.1.1.1 Setting up schema
Descriptions to illustrations 2a - 5
m
B
Mano vacuum meter
m
D
manometer A discharge liquid
B operating liquid
F clean liquid
K cooling liquid
T expanding agent
U circulating liquid
N liquid level
S medium suction side
D medium discharge side
P liquid ring vacuum pump
PB circulating pump
a liquid separator
b clean liquid container
g gas ejector pump
h ventilating device
w heat exchanger
V
F
shut-off valve
V
K
shut-off valve
V
S
non-return valve
r
B
regulating valve
r
F
regulating valve
r
F1
regulating valve (float valve)
r
F2
regulating valve (thermostatic)
r
F3
regulating valve (reducing regulator)
I
B
pipe for operating liquid
I
F
pipe for clean liquid
I
G
pipe for cavitation protection
I
K
pipe for cooling liquid
I
S
suction pipe
I
D
discharge pipe
I
U
circulating pipe
m
t
thermometer
m
t1
temperature probe to r
F2
U
A
liquid discharge
U
B
connection for operating liquid
U
V
connection for control valve
U
S
connection for suction pipe
D
U
connection for discharge pipe
U
U
connection for circulating liquid
U
e
discharge
U
se
connection for draining pipe
U
L
connection for ventilation device