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Metal-sealed ball valves are suitable for working conditions such as high temperature, high pressure, wear, and corrosion. They are ideal for cutting special media such as solid-gas mixtures, solid-liquid mixtures, high-viscosity media, high-fiber media, and high-temperature steam media. They are widely used in industries such as coal chemical industry, petrochemical industry, power generation, papermaking, and polysilicon.
| ITEM | PART | MATERIAL | ITEM | PART | MATERIAL | ||||
| 1 | Lever | WCB/CF8 | 12 | Retaining ring | graphite | ||||
| 2 | plate screw | B7/B8 | 13 | Gasket | 304+Graphite | ||||
| 3 | packing plate | A105/F304 | 14 | Bonnet | WCB/CF8 | ||||
| 4 | Packing bushing | F304 | 15 | Stud bolt | B7/B8 | ||||
| 5 | Packing | graphite | 16 | Nut | 2H/8 | ||||
| 6 | Body | WCB/CF8 | 17 | Upper sealing gasket | graphite | ||||
| 7 | Sealing ring | graphite | 18 | Stem | 17-4PH | ||||
| 8 | Seat | F304+Hard alloy | 19 | Locating plate | 1025 | ||||
| 9 | Ball | F304+Hard alloy | 20 | Garter spring | 65Mn | ||||
| 10 | Pressing sleeve | F304 | 21 | Gasket | 1025 | ||||
| 11 | Leaf spring | Inconel X750 | 22 | Screw | B7/B8 | ||||
| Anti-static design;Blow-out proof design for stem | |
| Valve size | 1/2"-36" |
| Pressure rating | Class150-Class2500 |
| Temperature range | -196℃-260℃ |
Anti-reverse friction;
Dual tightness and discharge system;
Middle chamber auto discharge function;
No fluid prssure force on stem,which is supp01ted by bearings;
Hardening treatment of valve stem and valve body contact parts;
Valve stem and ball contact area:Hardening treatment to improve wear resistance;
The valve seat and ball are processed and ground with high precision to obtain 100% sealing;
Using graphite ring to protect spring cavity:
Effectively prevent spring failure;
Using butterfly spring loading:
Prevent the ball seat from getting stuck or failing due to thermal expansion, ensuring the sealing performance of the valve.
Ball seat adopts technology and coating：
Ball seats utilize a variety of spray coating processes and carbide materials to meet the needs of various operating conditions,like supersonic spraying,tungsten carbide,chromium carbide,nickel-based alloy,stellite cobalt.
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