Metal Seated Valve Balls are suitable for applications with elevated temperatures or highly abrasive conditions. Metal Seat and Ball are fabricated from base metals coated with hard chrome, tungsten carbide and Stellite.Vasar valve is able to supply thermal spray coating applied by HVOF(High Velocity Oxy Flame) technology. VASAR provides complete ball and seat kits solution to customers. Over the years, we have developed a unique ball lapping technology forthe coated ball and seat. Through simultaneous same and different direction of rotation, the ball and the seat result in perfect roundness and fitness, achieving ‘Zero Leakage’.
Metal Seated Valve Ball Specification
| Pressure Rating | Class 150LB-2500LB |
| Nominal Size | 2’’ ~ 48’’ |
| Hardness: | HV 940-1100/HRC 68-72 |
| Porosity | ≦1% |
| Tensile strength | (≥70Mpa) |
| Heat Resistance | 980℃ |
| Leakage | Zero |
| Basic Materials | ASTM A 105, A350 LF2, A182 F304, A182 F316, A182 F6A, A182 F51, A182 F53 |
| Coating |
Thermal Spray and Cold Spray: HVOF Tungsten Carbide, HVOF Chrome Carbide, Stellite 6# 12# 20#, Inconel, etc |
