Flowserve MN User Manual
Page 8
MN USER INSTRUCTIONS ENGLISH 71569189 11/04
Page 8 of 49
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1.7 Name plates and warning labels
1.7.1 Nameplate
For details of nameplate, see
the
Declaration of
Conformity.
1.7.2 Warning labels
Oil lubricated units only
:
1.8 Noise level
Whenever pump noise level exceeds 85 dBA,
attention must be given to the prevailing Health and
Safety Legislation, to limit the exposure of plant
operating personnel to the noise. Typical safety level
requires limiting sound level to 90 dBA, for 8 hours of
exposure. Thereafter, the allowable dBA value
increases 5 dBA for each halving of exposure time.
The usual approach is to control exposure time to the
noise or to enclose the machine to reduce emitted
sound.
You may have already specified a limiting noise level
when the equipment was ordered, however if no
noise requirements were defined then machines
above a certain power level will exceed 85 dBA. In
such situations, consideration must be given to the
fitting of an acoustic enclosure to meet local
regulations.