BELZONA SOLVES FLAP VALVE DAMAGE
Industry: General Industry (GIND)
Application: SHM-Solids Handling Machinery (SHM)
Substrate: Aluminum/Rubber
Customer Location: Door Component Plant, Central Missouri
Application Date: May, 2008
Products:
Belzona® 1812 ( Ceramic Carbide FP)
Belzona® 2111 (D&A Hi Build Elastomer)
Problem: The valves suffered damage on the back of the valve plate due to impact with the valve "stop". This impact would cause breakage/failure of ceramic tiles on the front of the valve, allowing gypsum/perlite mix to cause abrasion damage and prevent valve from sealing upon closure leading to repeated outages of the system.
Photograph Descriptions
- Valve plate showing impact damage on back from striking the valve stop
- Striker plate and valve plate prepared for application
- Striker plated bonded to back of valve plate with Belzona® 2111
- Ceramic tile repaired with Belzona® 1812 on one valve, tile replaced with Belzona® 1812 on second valve
Application Situation
Flap valves used in gypsum/perlite transfer system. the valves were lined with ceramic tile.
Application Method
Application was carried out in accordance with Belzona Know Show System Leaflet SHM-7. Belzona® 2111 was used to bond a stainless steel striker plate to the back of the valve plate to absorb and distribute the sharp point impact from the valve stop. Belzona® 1812 was used to repair valve with broken tile and ultimately replace tile altogether for abrasion resistance on front of valve.
Belzona Facts
After 7 months in service, valve plates show no signs of damage, compared with average life of 1-2 months before failing prior to Belzona Solution. Based on this success, customer has extended use of Belzona® 1812 and 2000 series products to many other applications throughout the plant.
