BELZONA PROTECTS DIFFUSER VANES
Industry: Power (POWR)
Application: CEP-Centrifugal Pumps (CEP)
Substrate: Steel
Customer Location: Irrigation District- Wyoming, USA
Application Date: January 2008
Products:
Belzona® 1321 (Ceramic S Metal)
Belzona® 1121 (Super XL Metal)
Problem: The diffuser vanes were suffering from erosion/corosion. Previous attempts were made to protect them using coal tar epoxies with limited success.
Photograph Descriptions
- Diffuser vanes before blasting
- Diffuser vanes after blasting
- Belzona® 1121 applied to smooth edges
- Second coat of Belzona® 1321 applied
Application Situation
Small hydroelectric plant feeding off an irrigation canal.
Application Method
Application was carried out in accordance with Belzona System Leaflets CEP-3 and CEP-5. Belzona® 1121 was used to smooth out the edges of the vanes to rebuild metal loss. Belzona® 1321 was applied by stiff bristled brush to protect against further erosion/corosion.
Belzona Facts
Alternative was to continue using coal tar epoxy applied every year and to manage the health and safety risks involved due to its make-up. Belzona was chosen for its 100% solids material and safetey and increased service life.
