Belzona repairs & protects control valve
KHIA ID: 8889Industry: Chemical & Petrochemical (PETR)
Application: VPF-Valves, Pipes and Fittings (VPF)
Substrate: Stainless-steelCustomer Location: Scotland
Application Date: November 2022Products: Belzona 1111 Supermetal Belzona 1341 Supermetalglide Belzona 2941 Conditioner Belzona 2141 ACR Fluid Elastomer
Problem: Welding of this part would challenging due to the substrate involved. It would also not last in service any longer than the original metal.
Valve showing internal parts
Close up of the cavitation damage
The damage rebuilt & the area coated with Belzona 1341 Supermetalglide
Belzona 2141 ACR Fluid Elastomer applied
Application Situation
A stainless steel control valve had suffered from cavitation erosion in service. The erosion had gone through wall in some areas of the valve body.Application Method
The valve was disassembled, the critical parts were protected with blasting tape & then the internal surface was prepared to SA2.5 & 75 microns.Belzona 1111 was then used to rebuild the lost metal. Two coats of Belzona 1341 Supermetalglide were then applied followed by one coat of Belzona 2141 ACR Fluid Elastomer.