Metal Seated Ball Valve
Brief introduction of high-temperature ball valve metal seat
The ball and seat of the metal hard-seal ball valve completely adopt the metal-to-metal sealing method. In order to ensure the reliable sealing of the valve at various temperatures and pressures, according to the different operating conditions and requirements of users, a variety of advanced balls and The hardening technology of the valve seat includes supersonic spraying, nickel-based spray welding, special surface hardening, cemented carbide spray welding, and the use of high-strength and high-hardness ceramic materials. The surface hardness of the ball and valve seat can generally reach HRC60 or higher, and the highest Above HRC74. The temperature resistance of the sealing surface material can reach 540℃, and the high can reach 980℃. The bonding strength of the material can reach more than 10000PSI, and the sealing surface material also has good abrasion resistance and impact resistance. The metal hard seal ball valve can be suitable for most of the harsh working conditions.
Product standard of hard seated ball valve
Design and manufacturing standard: GB/T 21385-2008
Structure length standard: B/T 12221-2005
Connecting flange standards: GB/T 9113, ANSI B16.5, JB/T74～90
Pressure temperature rating: GB/T 12224-2005
Test inspection standard: GB/T 13927-2008
Material list of hard seal ball valve:
| No | Item | Material |
| 1 | Body | A216-WCB |
| 2 | Seal ring | flexible graphite |
| 3 | Seat | 304 |
| 4 | Ball | A276-420 |
| 5 | Nut | A194-2H |
| 6 | Bolt | A193-B7 |
| 7 | Gasket | 304 |
| 8 | Spring | AISI 9260 |
| 9 | Gasket | B12.10-304/F.G |
| 10 | Packing | flexible graphite |
| 11 | Gland | A216-WCB |
| 13 | Stem | A276-410 |
| 14 | Screw | A193-B7 |
The specification of metal sealed ball valve:
| Nominal pressure | Class | |||||||||
| 1.6 | 2.5 | 4 | 6.4 | 10 | 150 | 300 | 400 | 600 | ||
| Test pressure | shell test | 2.4 | 3.75 | 6 | 9.6 | 15 | 3.03 | 7.5 | 10.2 | 15 |
| seal test | 1.76 | 2.75 | 4.4 | 7.04 | 11 | 2.2 | 5.5 | 7.48 | 11 | |
| Application | medium | pulp, dust and all kinds of solid particles medium | ||||||||
| temperature | -196~≤550℃ |
How to ship ball valve 
Acknowledge certificates
Other valves
