381326 ISS Q 11.95 381325 ISS T 11.98
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 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.
2.3 Power supply
The motor should be connected to the mains via a motor isolator 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. 2).
2.4 Water supply for water-flushed shaft seal
Pumps with a water-flushed shaft seal have two hose connectors on
the seal flange (fig. 3). 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.
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.
2.5 Connecting steam or steam condensate for aseptic use
Shaft seals for aseptic use are supplied with Ø6/Ø4 PTFE pipes for
connections.
The connection for steam or steam condensate with static double seal
in the pump body is supplied with fittings for 8 mm steel pipes.
Steam can be used at temperatures up to 150°C and pressures up to
5 bar.
2. Installation of the pump
Fig. 3
Fig. 2
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