Coating doubles the life of wear parts

Severn Trent Water has 16 Landia chopper pumping assets on its Minworth Bio plant, which are used for recirculating the site’s digesters. The current annual spend on new Landia pump wear parts is in excess of £100k per annum.

Severn Trent Water approached Hayley247 regarding a trial of applying a Belzona coating to the wear components to reduce the amount spent on wear components.

Severn Trent provided Hayley247 with new Landia wear components consisting of a front wear plate, a back wear plate and a volute casing. The new components were grit blasted to achieve the correct surface profile in line with SA2.5. Belzona 1321 Abrasive Resistant coating was then applied to the parts.
Landia Pumps installed the coated components during a planned service. After three months in service they were inspected and the coating was still in place.

Commenting on the trial, Alan Butcher, Strategic Maintenance Manager, Bioresources, at Severn Trent Water, said: “The service and inspection was a success. We have saved the parts in-between servicing and they will last until the next service, doubling their life. We will now put a plan in place to ensure we have an ongoing stock of coated parts.” www.hayley247.co.uk