• 24010 Lenna Bergamo - Via dell'Industria, 21 - Italy

HVOF COATING

We offer balls and seats TC and CC coating

We carry metal coatings tungsten carbide (WC) or chrome (CrC) on balls and seats, providing lapped kits, and ensuring metal-to-metal seals with “no loss”. These kind of coating are perfect for high corrosive applications and high temperature.
We have two plants equipped with HVOF (High Velocity Oxy Fuel) technology. The process consists in impacting at high-speed the filler material on the substrate, obtaining a coating with higher performance in terms of bonding to the substrate and coating density, and reduction of oxidized particles during the process.

Working capability

Nr. 1

Sandblast Unit

Nr. 2

Overcoating units with HVOF technology for pieces from dn 1-1/2`` to 68``

Quality control laboratory.

Click here to download our capability.

Main features of our spray coatings

WC coating

  • Min. Hardness = 1120 HV0,3
  • Oxide = max 2%
  • Porosity = max 1%
  • Bond strength (according to ASTM C633) ≥ 69 MPa (> 10.000 psi)
Dettaglio degli strati di riporto dei carburi di tungsteno WC

CrC Coating

  • Hardness = 800÷1000 HV0,3
  • Oxide = max 6%
  • Porosity = max 1.7%
  • Bond strength (according to ASTM C633) ≥ 69 MPa (> 10.000 psi)
Dettaglio degli strati di riporto dei carburi di cromo CrC

The quality is constantly controlled and certified through our specialized laboratory.