PONNDORF Gerätetechnik GmbH
Leipziger Strasse 374
D - 34123 Kassel
Operation manual
Hose Pump type
P_high pressure 65
Page 17 of 26
Version 002_GB / 05.2017
The pumps must be integrated in the equipotential bonding of the whole
plant. For example this can be made by grounding the base frame by using
the grounding terminal in the terminal box of the motor.
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).
fig. 6.3.1
WRONG
fig. 6.3.2
WRONG
fig. 6.3.3
WRONG
fig. 6.3.4
