Article | REF: BM4179 V1

Pump noise

Author: Jean POULAIN

Publication date: July 10, 1998

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2. Noise in liquid or solid media

A rotating pump generates noise in three forms: hydraulic noise, which can be considered the pump's primary noise, solid-borne noise, which is both primary and secondary, and airborne noise, which is a secondary noise generated by the first two through noise radiators that form a more or less complex transmission chain, in which piping plays a major role.

2.1 Specific characteristics of hydraulic noise

With the exception of what concerns the sensitivity of the ear, the notions we have just seen § 1

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Noise in liquid or solid media
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