Installation
INOXPA S.A.U.
·
01.610.30.11EN · (0) 2021/05
9
5.5.1. Alignment
The shafts of the pumping assembly (motor-pump) were properly aligned at the factory.
Check the alignment of the pumping unit after installation.
•
Check the alignment of the pumping assembly after installation. If necessary, realign.
•
In the case of applications dealing with high temperatures the pump can be operated temporarily at its
working temperature. Then recheck alignment pump-piping.
•
Place a straight-edge (A) on top of the coupling: the straight should make contact with both halves of the
coupling over their entire length. See the following figure.
•
Repeat the check, but this time on both sides of the coupling near the shaft.
Maximum alignment deviations:
Outside diameter of
the coupling [mm]
Va mín.
[mm]
Va máx.
[mm]
Va max. - Va min.
[mm]
Vr
[mm]
70 - 80
2
4
0,13
0,13
81 - 95
2
4
0,15
0,15
96 - 110
2
4
0,18
0,18
111 - 130
2
4
0,21
0,21
131 - 140
2
4
0,24
0,24
141 - 160
2
4
0,27
0,27
161 - 180
2
4
0,30
0,30
181 - 200
2
4
0,34
0,34
201 - 225
2
4
0,38
0,38
The coupling has to be adequately protected during operating the pump to avoid possible accidental accesses.
Do not operate the pump if the protectors are not installed adequately.
5.6. PIPES
•
As a general rule, install the suction and discharge lines in straight sections, with the minimum possible
number of elbows and fittings in order to reduce any pressure losses that may be caused by friction.
•
Make sure that the pump’s ports are properly aligned with the pipework and have a diameter similar to that
of the pump connections.
•
Place the pump as close as possible to the suction tank and whenever possible below the liquid level, or
even below the tank level in order to achieve the largest possible static head for suction.
ATTENTION
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