Pumps, problems overload

The noise and the seal failure are actually symptoms and not the problem. This is like the electrician blaming the fiise for an overloaded electrical circuit. The problem is the overloaded circuit and the symptom is the burned fiise. Likewise, in the maintenance shop, the noisy pump, the failed seals and bearings arc the Symptom of a problem that probably occurred outside the pump. 

Of all the normally used solvents, perchloroethylene has the highest density. It is therefore the most likely to cause problems in the overloading of pump motors and structures carrying storage vessels. If recovery is proposed on a general-purpose plant, a careful survey of the effect that excess density may have must be made. A pallet of 4 X 200 litre drums will weigh almost 1.5 Te. 

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