APV W+ Series, Manual

Page: 25 / 78

15
1.4 Identifying the motor model
The motor is identified by removing the shroud and reading the kW
rating (pos 1) and the overall height (pos 2) of the motor on the type
plate:
2.1 Positioning
The pump must be positioned so that the suction pipe is as short as
possible and there is a falling gradient towards the suction nozzle.
Keep the number of valves, bends and tee-pieces on the suction side
to an absolute minimum.
There must be sufficient space around the pump for piping and access
for maintenance.
2.2 Adapting the pipe system
Adapt 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.
2.3 Power supply
The motor should be connected to the mains via a motor safety switch
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.
2.4 Water supply for water-flushed shaft seal
Pumps with a water-flushed shaft seal have two hose connectors in
the seal flange. The hose connectors are 1/8" and fit a Ø6.0 mm
hose. The necessary liquid volume 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 below and the outlet above.
Water consumption can be limited by installing a solenoid valve on the
supply side for the flushing water. The open/close function of the
solenoid valve can be controlled by the pump's start/stop sequence.
Do not use the flushing water connectors for steam or steam
condensate. If you want to use steam as the barrier medium, special
aseptic piping is required. See section 2.5 for connection.
1 Introduction to the W+ programme
Fig.3
Fig. 2
2 Installation of the pump
abb
381326
381325