Asse mbl y
WBV.PU.003.EN FX116 V1.0
19
6.2
Pipes
•
Only use the pipe diameters, wall thicknesses and materials recommended by us or by our
representatives. The sealing material must be compatible with the medium.
•
Position the pressure and suction connections pointing upwards. This will ensure that the fluid remains
in the pump after it is switched off.
•
Keep the pipe as free as possible from foreign matter (stones, wood residues, etc.) in order to prevent
increased wear on rotary lobes and housing.
Recommended connector diameters:
Size
Connector diameter
60
DN 100
--
--
120
DN 125
180
DN 150
240
DN 150
300
DN 150
360
DN 150
ATTENTION
Hazard due to closed pipes!
Pumping must not take place against a closed pipe. The pump shaft seals or even the pump housing or the
pipe may be damaged or destroyed by the resulting high pressure. A pressure monitoring system is
optionally available from us (setting at 10% over the nominal pressure of the pipe)
.
WARNING
Risk of injury from medium escaping under high pressure!
If the maximum pressure is exceeded,
Chapter
"Specifications", parts may burst and the pumped medium
may be expelled under high pressure.
•
Follow the recommendations for pipes. Only use high-pressure pipes on the discharge side:
Up to
nominal diameter DN 150 - PN 16 (bar) pipes
Above
nominal diameter 200 - PN 10 (bar) pipes, except when the discharge pressure of the
pump unit is ≥ 10 bar
If you are uncertain about anything, please contact us.
•
During downtimes and periods of hot weather, fermentation may occur in closed pipes. The resulting
gas can result in a significant pressure increase that can damage the pump or pump unit and cause
the injuries mentioned above. Therefore, ensure that no medium is left in the pump.
•
Attention
– if a connector
with a sight glass
is installed on the suction side:
The pressure must not exceed
max. 2 bar
during reverse pumping
Fig.
"Flow direction with pump
units".
