/ / FSP SERIES / / /
12
Design pipe cross section so that no unnecessary pressure
losses or cavitation occurs in the suction area.
Verify this in the project planning stage.
Install suction lines horizontally or continuously falling in di-
rection of the pump unit. Prevent air locks and dips in the
piping.
Fig. 15
Air pocket in pipe
Fig. 16
Dip in pipe
Connect the pipes to the pump so that they are free of ten-
sion and compression to ensure that no stresses are applied
to the pump.
Secure pipes to ceilings, walls, or floor using pipe clamps.
Align pipes flush with pump connections using a bracket.
6.5
Electrical Connection
Electrical connection may only be performed by a qualified elec-
trician.
1. Heed the connection values on the motor's rating plate. The
specified voltage must not be exceeded.
2. Only connect the motor to fuse-protected circuits to prevent
excessive current consumption.
3. Connect the motor according to the circuit diagram in the
terminal box of the motor.
4. Protect cable feedthroughs against penetration by moisture.
5. Turn on the motor for 2 to 3 seconds. Compare the direction
of rotation of the motor fan wheel against the direction indi-
cated by the arrow on the pump head.
6. Reverse the polarity if the pumping direction is incorrect.
6.6
Connection of Sealing or Quenching Liquid
(Optional)
In versions with double shaft seal, the seal chamber must be
flushed with a sealing or quenching liquid.
Use a suitable medium as a sealing or quenching liquid.
6.6.1
Installing the pipelines
1. Install and seal the supplied flushing tubes.
2. As a standard, the feed line should be fitted at the
bottom
of the shaft seal.
3. As a standard, the return line should be fitted at the
top
of
the shaft seal.
Fig. 17
Installing the pipelines
4. Install the following valves into the pipelines:
– Install the sight glass in the return line.
6.7
Cleaning
Only use cleaning agents that comply with the hygiene guide-
lines for the respective pumping medium.
1. Before sealing the pump ensure that there are no foreign ob-
jects inside the pump or pipes.
2. Seal the pump.
3. Connect the pipes.
4. Thoroughly clean the pump and the pipe system before ini-
tial use.
Return line
Inlet
25
26