453261 ISS U 08.2008
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2.3 Installation of pump without recirculation.
In this case, where the simplified pipe layout is to be used, one
important requirement must be met:
as the suction tank starts to refill, some liquid will be able to run from
the tank into the pump to replenish any priming liquid lost when the
tank was previously pumped dry. Typical applications can be seen in
figure Fig.3.
As with the ZMS pump, the pump body must always be mounted with
outlet vertically upwards and all the other conditions apply.
Note !
Any eccentric reducer should be mounted such that the pump
centreline is lower than the inlet pipe's centreline.
2.4 Lining up the pipe system
Line up the pipes carefully to the pump suction and discharge nozzles.
Make sure that the pipe system is adequately supported by pipe
supports, so that the pump body is not subject to strains and weight
from the pipe system.
Note !
During priming the pump may tend to vibrate. A pipe support
should be placed close to the pump suction to prevent pipework
vibration creating excessive noise.
2.5 Power supply
The motor should be connected to the mains via a motor switch box in
accordance with local regulations. The motor should be connected in
accordance with the instructions inside the cover of the motor's
terminal box.
The motor should be connected such that the direction of rotation of
the motor (and thus of the impeller) is anticlockwise when viewed from
the front towards the suction nozzle of the pump body (Fig. 4).
2.6 Water supply for water-flushed shaft seal
Pumps with a waterflushed shaft seal have two hose connectors on
the seal flange (Fig. 5). The hose connectors are 1/8" and fit a Ø6.0
mm hose. The necessary liquid flow rate is 15 30 l/h.
Max. pressure 7 bar.
The hose connection in the seal flange should always be positioned
vertically with the fluid inlet underneath and the outlet on top.
Water consumption can be limited by installing a solenoid valve for the
flushing water on the supply side. The open/close function of the
solenoid valve can be controlled by the pump's start/stop sequence.
2. Installation of the pump
Fig.3
Fig.5
Fig.4
