En
gl
is
h (
G
B)
10
5. Ejector valve
The ejector valve is supplied separate with the
pump.
Remove the plug (V), see fig. 1, and fit the ejector
valve into the hole.
Fig. 1
Ejector valve
5.1 Ejector valve setting
The ejector valve in the plug hole (V) can be turned
to two positions. See fig. 3.
Figure 2 shows an example of how the ejector valve
position may affect the QH curve.
Fig. 2
QH curve and ejector valve positions
Pos. 1
Turn the valve to the left (out).
Select pos. 1 when the suction pipe is empty and the
pump is to be primed.
Select also pos. 1 when a small quantity of water and
a high pressure are required.
Pos. 2
Turn the valve to the right (in).
Select pos. 2 when the pump has been primed, and
a large quantity of water and a low pressure are
required.
Fig. 3
Ejector valve positions
6. Start-up
6.1 Shaft seal run-in
The seal faces are lubricated by the pumped liquid,
meaning that there may be a certain amount of
leakage from the shaft seal.
When the pump is started up for the first time, or
when a new shaft seal is installed, a certain run-in
period is required before the leakage is reduced to
an acceptable level. The time required for this
depends on the operating conditions, i.e. every time
the operating conditions change, a new run-in period
will be started.
Under normal conditions, the leaking liquid will
evaporate. As a result, no leakage will be detected.
Note
The O-ring must be fitted to the ejector
valve.
Tighten the valve using fingers only.
TM
00
5
495
49
95
T
M
00
74
74
13
96
V
S
P
T
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0 Q [m³/h]
0
5
10
15
20
25
30
35
40
45
H
[m]
0.00
0.25
0.50
0.75
1.00
Q [l/s ]
J P 5
IS O 9906 Annex A
P
os
. 1
P os. 2
Pos.
Ejector valve
Direction
1
Left
(out)
TM
04 229
9 230
8
2
Right
(in)
TM
04 23
00 230
8
Caution
Do not start the pump until it has been
filled with liquid. See the quick guide.
Note
We recommend to fit a non-return valve
on the suction side of the pump.
