PONNDORF Gerätetechnik GmbH
Leipziger Strasse 374
D - 34123 Kassel
Operation Manual
Hose Pump Series
P_delta / PD-S
Page 18 of 29
Version 003_GB / 04.2021
6.3
Mechanical connection
The nominal width of the tubing at the suction and the discharge side
should be approx. 25 % bigger than the nominal width of the pump hose.
The size of the hose pump is concurrent to the width of the pump hose.
The tubing on the suction side must be vacuum proof (reinforced) and the tubing on the discharge
side must withstand the maximum pressure of the pump. By using a pole changing switch the tubing
on suction and discharge side must withstand the maximum pressure of the pump.
Always use flexible tubing to connect
the pump with the pipework of your application.
The length of the tubing should be
at least 1 m. (see fig. 6.3.1).
The standard way of connection is flexible tubing (fitting the connecting sockets of the
pump), fixed with hose band clamps. Other options (e.g. threaded connections, Kamlok
couplings, standard flanges) are available on request.
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).
CORRECT
Fig. 6.3.1
WRONG
WRONG
WRONG
Fig. 6.3.3
Fig. 6.3.2
Fig. 6.3.4
Summary of Contents for P delta 15
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