Description
Tech Specs
| Parameters | English |
| Pressure rating | Class150~600LB |
| Diameter range | DN50~DN800 (2″~32″) |
| Valve body material | WCB/CF8/CF8M |
| Seal combination | Metal+Graphite/PTFE |
| Applicable temperature | -196℃~450℃ |
Industry Pain Points
Oilfield Maintenance: 90% downtime reduction in desert pipelines
Chemical Corrosion: 3x lifespan with CF8M + tungsten coating
City Gas Safety: DBB prevents leakage, EN 331 certified
Trunnion-Mounted Ball Valve Cross-Section Diagram
This sectional diagram illustrates a trunnion-mounted ball valve, widely used in high-pressure pipeline applications. The design features a split body, monolithic cast construction, and a floating or trunnion-supported ball, allowing for both full and reduced bore configurations. Key features include:
- Blowout-proof stem for operational safety
- Anti-static device to prevent spark generation
- Fire-safe design with certified sealing systems
- Emergency sealant injection ports for critical shutoff
- PTFE/Graphite packing and O-ring seals to ensure leak-tight operation
Each labeled component (1–29) corresponds to a specific part listed in the material specifications table, supporting the valve’s durability, pressure integrity, and maintainability.
| Feature | Description |
|---|---|
| Size | 2″ – 24″ |
| Class | 150 – 1500Lb |
| Body Type | The Monolithic Cast Steel Body |
| Ball Type | Floating & Trunnion Mounted Ball, Full & Reduced Bore |
| Device | Anti-static Device |
| Stem | Blow-out Proof Stem |
| Design | Fire Safe Design |
| Sealant | Emergency Sealant Injector |
| Specification | Standard |
|---|---|
| Design | ASME B16.34 / API 6D |
| Face to Face | ASME B16.10 |
| End Flange | ASME B16.5 |
| BW End | ASME B16.25 |
| Test | API 598 |
| Fire Safe Test | API 607 / API 6FA |
| Special | NACE MR-01-75 |
| No. | Part | Material |
|---|---|---|
| 1 | Body | A216-WCB, A352-LCB, A351-CF8, CF8M, CF3, CF3M, Duplex |
| 2 | Seat Spring | Inconel X-7505, SS304, SS316 |
| 3 | Seat Ring | ASTM A105+ENP, ASTM A182-F304, F316, F316L, F6, F51 |
| 4 | Seat | PTFE, RPTFE, PEEK, PPL |
| 5 | Ball | ASTM A105+ENP, ASTM A182-F6, F304, F316, F316L, F51 |
| 6 | O-ring | NBR, Viton |
| 7 | Thrust Washer | PTFE |
| 8 | Body Gasket | Stainless Steel+PTFE, SS316+PTFE |
| 9 | Sliding Bearing | PTFE, SS304+Graphite, SS316+Graphite |
| 10 | Bonnet | A216-WCB, A352-LCB, A351-CF8, CF8M, CF3, CF3M, Duplex |
