Pump RepairBack to
||Petrochemical Gypsum Manufacturing|
ComboWear FC (Fast Cure)
This Hazelton Pump would receive extreme abrasive wear from processing gypsum rock. The wear was so severe that the pump efficiency was reduced to 40%. The previous method of repair was to simply replace when required. Pump replacement cost was estimated to be $25K.
Complete volute of the pump casing was sandblasted to a SSPC-SP5 white metal finish. Expandable metal was tack welded in a raised position .065" inch above the actual substrate. Welding slag was removed using a wire brush. Tack welding expandable metal improved mechanical bonding properties of Combowear FC. All contact surfaces were then chemically cleaned using Cleaner Blend 300. Combowear FC was applied to a thickness of 1/2" rebuilding the missing metal. Combowear FC was smoothed and contoured using acetone as a thinning agent following gel point. Combowear FC provided a fast curing, (90 minute functional cure), long lasting, abrasion resistant protective lining. Devcon's repair cost was $2K.