PONNDORF Gerätetechnik
GmbH
Leipziger Strasse 374
D - 34123 Kassel
Operation manual
Hose Pump series
P_classic / PC-S
Page 18 von 30
Version 005_GB / 04.2021
In order to avoid pressure peaks, which can cause damages of the pump hose, there
should no pipe bends or 90° elbows be installed directly after the pump on the
discharge side (please see fig. 6.3.2 and 6.3.3).
Furthermore the cross section of the pipework on the discharge side should not be
reduced (please see fig. 6.3.4).
Important notice for the conveyance of media containing solids
There is a risk of sedimentation of solids which can settle in the pump while the pump
is stopped. Hereby a lump of solids can be formed in the upper section of the hose.
If the upper connecting socket of the pump is the outlet (discharge side), the lump
blocks the pump when it is restarted (please see pic. 6). This may cause damages to
the pump.
To avoid any damages we recommend to reverse the direction of rotation of the
pump and to connect the discharge line to the lower, horizontal connecting socket.
To get a further advantage a flexible hose should be used to to connect the pump
and a kind of trap should be created in which the solids settle out (please see pic. 7).
In case of longer downtimes it is also recommended to flush the complete piping
including the pump sufficiently.
fig. 6.3.2
WRONG
fig. 6.3.3
WRONG
fig. 6.3.4
WRONG
Pic. 6
Pic. 7
Summary of Contents for P Classic 10
Page 1: ...Hose Pump Series P_classic PC S Operation Manual...
Page 2: ......
