Spare parts planning that actually prevents downtime

The usual reason a pump is down for a week is not that the part is unavailable — it is that the part on the shelf is the wrong one, or the right one was used six months ago and never reordered.

A workable approach is to rank every pump on site by the cost of an hour of lost production, then hold spares only in proportion to that cost. For a critical pump that means a full seal and bearing set plus the wear parts the manual lists as consumables. For a redundant utility pump it may mean nothing beyond a seal kit held centrally.

The second discipline is to define the reorder point in the maintenance system rather than in memory. Consumables taken from stock without a transaction are, in practice, invisible until they are needed.

The third is to standardise. Sites that run five brands of similar pump carry five sets of seals; sites that standardise carry one. When replacement is due, the total cost of ownership calculation should include the spares inventory, not just the purchase price.

We hold a large range of Ritz pumps and parts together with an extensive selection of Allweiler rotors and stators for short-notice supply, and can review a site pump list to suggest a sensible holding.