DN1200 Welded Ball Valve
- Ultra-large Diameter: DN1200 ultra-large diameter design meeting ultra-large flow requirements
- Fully Welded Structure: No external leakage points with excellent sealing performance
- High Strength: Suitable for high-pressure and high-stress conditions
- Maintenance-free: Integrated design requiring no routine maintenance
- Extreme Condition Resistant: Capable of withstanding extreme temperature and pressure conditions
- Long-life Design: High-quality materials with service life of 25 years or more
DN1200 Welded Ball Valve is an ultra-large diameter fully welded ball valve specifically designed for ultra-large flow pipeline systems. The product adopts an integral fully welded structure with direct welding connection between the valve body and pipeline, having no external leakage points and excellent sealing performance and high strength. The DN1200 welded ball valve is suitable for critical applications such as natural gas long-distance transmission pipelines, large petrochemical installations, offshore engineering, nuclear power plants, etc., capable of withstanding extreme operating conditions. The ball is manufactured using high-strength alloy materials and precision machining to ensure excellent sealing and operation performance even under ultra-large diameter conditions. The product is strictly manufactured according to international standards such as API 6D and ASME B16.34, making it an ideal choice for ultra-large diameter pipeline systems.
Technical Standards
| Item | Technical Standard |
|---|---|
| Nominal Diameter | DN1200 (48") |
| Nominal Pressure | 150Lb-1500Lb |
| Operating Temperature | -46℃ to +200℃ |
| Applicable Media | Natural gas, crude oil, refined oil, seawater, etc. |
| Body Material | A352 LCB, A216 WCB, A217 WC6 |
| Ball Material | A182 F6a, A182 F316, A182 F317 |
| Seal Material | Metal seal, Graphite seal |
| Connection Type | Fully Welded Connection |
| Operation Method | Worm Gear, Pneumatic, Electric |
| Design Standard | API 6D, ASME B16.34, GB/T 12237 |
Basic Models
| Model | Type | Features |
|---|---|---|
| FWBV-1200-150 | 150Lb DN1200 Welded Ball Valve | Low pressure large flow, cost-effective |
| FWBV-1200-300 | 300Lb DN1200 Welded Ball Valve | Medium pressure application, stable performance |
| FWBV-1200-600 | 600Lb DN1200 Welded Ball Valve | High pressure application, high strength |
| FWBV-1200-900 | 900Lb DN1200 Welded Ball Valve | Ultra-high pressure application, safe and reliable |
Main Components Material Table
| No. | Part Name | Material |
|---|---|---|
| 1 | Valve Body | A352 LCB, A216 WCB, A217 WC6 |
| 2 | Ball | A182 F6a, A182 F316, A182 F317 |
| 3 | Valve Stem | 440C, 17-4PH, A182 F22 |
| 4 | Sealing Ring | Metal seal, Flexible Graphite |
| 5 | Packing | Flexible Graphite, Graphite Braided Packing |
| 6 | Actuator | Aluminum Alloy, Cast Iron |
| 7 | Fasteners | A193 B7, A193 B8M, A320 L7 |
| 8 | Fire-safe Design | Fire-resistant Asbestos, Metal Seal Ring |
No drawing available.
