Wilo Wilo-Rexa NORM, Инструкция по установке и эксплуатации

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20 WILO SE 04/2021 DIN A4
English INSTALLATION
5.3.6. Stationary dry well installation (version as unit)
In this installation type, the operating space
is divided: collector tank and machine room.
The fluid is collected in the collector tank, and
the pump is installed in the machine room. The
operating space must be blocked out as per
the manufacturer’s configuration or consulting
aid. The pump is connected to the suction- and
pressure-side pipeline system at the specified
point in the machine room. The pump itself is not
immersed in the fluid.
The suction- and pressure-side pipeline sys-
tem must be self-supporting, i.e. it may not be
supported by the pump. In addition, the pump
connection to the pipeline system must be free
of stress and vibrations. We therefore recommend
using elastic connection pieces (compensators).
The following operating parameters must be
complied with:
• The max. fluid temperature is 70 °C (158 °F).
• Motor cooling - To ensure sufficient motor
cooling by the motor fan, the minimum distance
to the rear wall must be complied with. See the
operating and maintenance manual for the motor!
• M ax. ambient temperature - see the operating
and maintenance manual for the motor.
The pump is not self-priming; therefore, the
hydraulics housing must be completely filled
with the fluid. Ensure that there is an appropri -
ate inlet pressure. Air pockets are to be avoided
at all costs. Appropriate ventilation systems
must be provided!
Fig. 4.: Stationary dry well installation
1 Gate valve inlet 5 Pump
2 Gate valve pressure
pipeline
6 Attachment points for
floor fixation
3 Non-return valve 7 Standard motor
4 Compensator 8 Coupling guard +
coupling
Preparing the foundation
Fig. 5.: Drilling templates of the different baseplates
1. Check foundation for correct version and sweep
the surface clean.
2. Use the drilling template to set the anchor bolts.
Please refer to the manufacturer’s instructions
for information on concrete quality, edge dis-
tances and curing times!
Install the pump
1. Check suction- and pressure-side pipeline system
for tight fit.
The pipeline system must be self-supporting,
i.e. it may not be supported by the pump!
2. Fasten lifting equipment to the attachment
points on the baseplate and position the pump in
the planned location.
Caution! When draining the pump, make sure
that the anchor rods enter exactly into the
boreholes of the baseplate.
Caution! The baseplate must lie horizontally
and completely on the foundation so that a
torsion-free connection of the pipeline system
is possible!
3. Check the alignment and distances of the
connection ports to the pipeline system. If the
connection ports are not exactly level or plumb,
or if the distances are not correct, the pump must
be aligned accordingly via the baseplate, e.g. with
compensating plates or levelling screws.
The deviation must not exceed ±0.5 mm
(0.02 in) on 1 m (40 in)!
4. Attach the pump to the foundation.
Refer to the manufacturer’s instructions for the
tightening torques of the anchor bolts!
5. Loosen the lifting gear.
Connect the pipeline system
Connect the suction- and pressure-side pipeline
system.
To ensure that the pipeline system is connected
free of stress and vibrations, we recommend
using elastic connection pieces (compensators).
The forces and torques acting on the flanges
must not exceed the following values!
Fig. 6.: Permissible forces on the suction and discharge ports
Suction port
Type
Forces (daN) Torques (daNm)
Fy Fz Fx My Mz Mx
NORM-M15.77 240 216 268 92 106 130
NORM-M15.84 180 162 200 70 82 100
NORM-M25.61 298 270 334 126 146 178
RE 25.74E 322 400 358 172 198 242
RE 25.93D 322 400 358 172 198 242
NORM-M30.41 418 376 466 220 254 310
NORM-M50.21 718 646 796 576 664 808
Discharge port
Type
Forces (daN) Torques (daNm)
Fy Fz Fx My Mz Mx
NORM-M15.77 162 200 180 70 82 100
NORM-M15.84 162 200 180 70 82 100
NORM-M25.61 270 334 298 126 146 178
RE 25.74E 270 334 298 126 146 178
RE 25.93D 270 334 298 126 146 178
NORM-M30.41 322 400 418 172 198 242
NORM-M50.21 538 664 598 410 472 578