Rapid repair of essential feed pump back-up seals Extensive mechanical seal face and o-ring damage linked to high ferric oxide concentrations in power station feed water was repaired within a European client’s tight cost and time expectations. Client challenge Following the failure of boiler feed water pump mechanical seals – thought to be caused by a combination of incorrect o-ring specifications from a different vendor and ferric oxide deposits in service – a major European power station was forced to rely on its spare seal set. Restoring the damaged seals became an urgent priority. Rather than go back to the seal OEM, our client – a pump service specialist – asked NASH to examine and repair the damaged seals so they could return them to their customer’s site as quickly as possible to mi

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