Another unusual case for Berg Metaal. A customer contacted us because they were experiencing extreme wear. The pump housing components shown in these photographs were completely worn out after an average of just six weeks. Our investigation showed that the components were made of cemented carbide, while the damage indicated that wear alone could not be the only cause. Further discussions with the customer revealed that ferric chloride was being added to the process. We therefore applied an HVOF coating with a very high PREN value, selected for its resistance to ferric chloride. We expect this to keep the pump components in operation for at least two to three years.