Reducing pump noise by good maintenance
While considering the implementation of a noise control programme, a major soft drinks manufacturer was advised that a pump used for transferring fruit juice concentrate from 200 litre drums to the product mixing tanks was producing A-weighted noise levels of 103 dB.
A preliminary inspection showed mechanical deterioration of the pump which required a complete overhaul to include:
- rewinding the drive motor;
- replacing the motor bearings;
- checking and cleaning the pump bearings;
- repacking the pump glands.
Nominal costs for staff time. (1995)
A noise reduction of 27 dB.
Report details supplied by Sound Research Laboratories Limited, Wilmslow.