Double-suction pump brought in for servicing due to lack of head capacity. An overhaul was carried out, including repair of wear on seals and mating parts, cleaning of dirt and peeling paint on the inner surface, repainting and machining to restore head.
Carrying in and dismantling
Both suction pumps have been delivered. Paint is peeling and corroded in places
Disassemble the inside. Remove impeller and spindle
Inspection
Inspections are carried out according to the items to be observed, such as how capacity is restored, the characteristics of the conveying fluid, the internal condition and the means of restoring lift.
Exterior also needs repainting due to peeling paint and corrosion
Repair of spindle due to wear, impeller wear rings, runners and distance pieces made
Repainting to be carried out due to internal paint peeling
Repainted due to peeling of internal paint as well as upper casing
Repair
Impeller wear rings produced
Thermal spray repair is also carried out on the shaft mating parts
Anti-corrosion and anti-wear paint applied to the inside of the upper casing. Selection of the most suitable coating depending on the characteristics of the material to be conveyed
The lower casing is also coated internally with anti-corrosion and anti-wear paint. Selection of the most suitable coating depending on the characteristics of the material to be conveyed
Assembly and testing
After assembly, pressure resistance tests are carried out to check that airtightness is ensured
Assemble each repaired part
After painting, pressure resistance tests are carried out
Emergency maintenance
Even companies that carry out daily maintenance based on the idea of prevention and prediction can face machine stoppages for unexpected reasons. In this case, too, the shaft was repaired in the shortest possible time, thanks to an urgent request for emergency servicing.
