VERTICAL PUMP
RDV - RGV - RCV
RBV - RNV - REV
EN-16
3.4.
NOISE
Noise levels have been measured in accordance with the requirements of UNI EN 11200 and UNI EN ISO 3746 standards.
During the operating cycles, exposure of personnel to noise is less than 85 dB unless otherwise specified on the operating
curves, unless the noise generated by the curves, valves, section changes etc. present on the system is added to the
pump noise.
It is mandatory to check the general operating curve of the pump in order to check the characteristic noise values, where
present, before starting it up.
Once the pump and plant noise has been verified, it is the user's responsibility to apply the consequent preventive and
protective measures, in compliance with the legislation of the country where the pump is installed.
Tables 1 - 2 - 3 indicate the noise values for each type of pump (series-size).
Table 4 summarises some typical noise values for three-phase electric motors; the actual noise pressure values may vary
depending on the brand and model of the motor actually installed on the electric pump unit.
3.5.
VIBRATIONS
The vibrations produced by the pump, depending on its method of operation,
are not dangerous
for the workers’ health.
CAUTION!
An excessive vibration can only be caused by a mechanical fault that must be immediately reported and
eliminated to avoid jeopardising the safety of the line and its operators.
Tables 1 - 2 - 3 show the maximum permissible vibration values and the relative reference standards for each type of pump
(series-size). These values are intended as measurements of unfiltered vibrations evaluated in the radial direction on the
bearing housings at the point of operation at maximum efficiency (BEP).
SERIES
SIZE
NOISE (Lp)
[dB(A)]
VIBRATIONS
(UNI ISO
5199:2005)
[mm/s]
2 poles
4-6-8 poles
-
RD/RG/RN
32-16
< 70
< 70
7.1
40-16
< 70
< 70
7.1
50-16
< 70
< 70
7.1
65-16
< 74
< 70
7.1
80-16
< 74
< 70
7.1
32-20
< 70
< 70
7.1
40-20
< 70
< 70
7.1
50-20
< 70
< 70
7.1
65-20
< 75
< 70
7.1
80-20
< 75
< 70
7.1
100-20
< 76
< 70
7.1
50-25
< 74
< 70
7.1
65-25
< 76
< 70
7.1
80-25
< 76
< 70
7.1
100-25
< 77
< 70
7.1
125-25
< 82
< 76
7.1
65-31
< 82
< 72
7.1
80-31
< 82
< 74
7.1
100-31
< 82
< 76
7.1
125-31
< 82
< 76
7.1
100-40
-
< 76
7.1
125-40
-
< 76
7.1
Table 1 - Vibration and noise values for RD/RG/RN series
