When operating the integral relief valve close to the
opening pressure, a minimal overflow into the overflow
line can occur.
Only adjust the stroke length when the pump is running.
This is easier and also better for the pump.
15 25 3020 35
75%
20 25
30
0
0
35 40
30%
P_SI_0096_SW
Fig. 20: Adjusting the stroke length
n 100% = 2 rotations
n 50% = 1 rotation
n 1% = 1 scale mark on stroke adjustment dial
Check whether the earthing lines in the pump's electrical units are cor‐
rectly connected and connected to a clean earth wire - see earthing dia‐
grams in the appendix.
Check whether the potential equalisation lines are sitting correctly on the
pump and connected to a clean potential equalisation point.
Check for the correct function of the auxiliary equipment and for correct
interplay.
Adjusting the stroke length
Earthing lines
Potential equalisation lines (mandatory
with ATEX)
Auxiliary equipment
Start up
42
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