DN400 Welded Ball Valve
- Zero Leakage Design: Fully welded structure with no external leakage points and excellent sealing performance
- Large Diameter Specification: DN400 diameter meeting large flow requirements
- Maintenance-free Design: Integrated structure requiring no routine maintenance
- Strong Corrosion Resistance: High-quality materials resistant to various corrosive media
- Flexible Operation: Flexible opening/closing with small operating torque
- Safe and Reliable: Strict quality control ensuring safe operation
DN400 Welded Ball Valve is a large-diameter fully welded ball valve with an integrated structure design, suitable for large flow and medium-high pressure pipeline systems. The product is widely used in large pipeline systems in industries such as oil, natural gas, chemical, and power as the main equipment for cutting off or connecting media. The DN400 welded ball valve features zero leakage, maintenance-free operation, and corrosion resistance, capable of stable operation under various harsh conditions. The product is manufactured using high-quality materials and precision machining to ensure excellent sealing performance and operational flexibility even under large diameter conditions. The valve has a reasonable design with compact structure, making it an important component of modern large pipeline systems, especially suitable for critical applications with high sealing and reliability requirements.
Technical Standards
| Item | Technical Standard |
|---|---|
| Nominal Diameter | DN400 (16") |
| Nominal Pressure | 150Lb-900Lb |
| Operating Temperature | -29℃ to +200℃ |
| Applicable Media | Natural gas, oil, water, steam, etc. |
| Body Material | A216 WCB, A352 LCB, A182 F304 |
| Ball Material | A182 F316, A182 F316L, A182 F327 |
| Seal Material | PTFE, RPTFE, Reinforced PPL, Metal Seal |
| Connection Type | Fully Welded Connection |
| Operation Method | Manual, Worm Gear, Pneumatic, Electric |
| Design Standard | ASME B16.34, API 6D, GB/T 12237 |
Basic Models
| Model | Type | Features |
|---|---|---|
| FWBV-400-150 | 150Lb DN400 Welded Ball Valve | Low pressure application, cost-effective |
| FWBV-400-300 | 300Lb DN400 Welded Ball Valve | Medium pressure application, stable performance |
| FWBV-400-600 | 600Lb DN400 Welded Ball Valve | High pressure application, high strength |
| FWBV-400-900 | 900Lb DN400 Welded Ball Valve | Ultra-high pressure application, safe and reliable |
Main Components Material Table
| No. | Part Name | Material |
|---|---|---|
| 1 | Valve Body | A216 WCB, A352 LCB, A182 F304 |
| 2 | Ball | A182 F316, A182 F316L, A182 F327 |
| 3 | Valve Stem | 440C, 17-4PH, A564 XM-19 |
| 4 | Sealing Ring | PTFE, RPTFE, Reinforced PPL, Metal Seal |
| 5 | Packing | Flexible Graphite, PTFE |
| 6 | Handle/Actuator | Carbon Steel, Stainless Steel, Cast Iron |
| 7 | Fasteners | A193 B7, A193 B8, A193 B8M |
| 8 | Internal Coating | Hard Chrome, Nickel-based Alloy |
No drawing available.
