FLEX User Instruction – 21TEM14546 EN
Page 37 of 43
11.4 Noise level
Attention must be given to the exposure of personnel to noise. Local legislation will define when
guidance to personnel on noise limitation is required, and when noise exposure reduction is
mandatory. This is typically 80 to 85 dBA. The usual approach is to control the exposure time to
high noise levels, use hearing protection, or to enclose the machine to reduce emitted sound.
FLEX noise level is dependent on a number of operational factors including flow rate, high
pressure, back pressure, piping design, and acoustic characteristics of the building. For these
reasons, noise levels that a customer will encounter in the field are project specific.
Factory testing has shown that noise levels at or below 85 dBA are possible.
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