DN4500 Welded Ball Valve
- Extra-large Diameter: DN4500 extra-large diameter design meeting ultra-large flow requirements
- Zero Leakage Design: Fully welded structure with no external leakage points and excellent sealing performance
- High Strength Structure: Suitable for ultra-high pressure and extreme operating conditions
- Maintenance-free Design: Integrated structure requiring no routine maintenance
- Extreme Environment Resistant: Capable of withstanding extreme temperature and pressure conditions
- Long-life Design: High-quality materials with service life over 25 years
DN4500 Welded Ball Valve is an extra-large diameter fully welded ball valve specially designed for ultra-large flow and high-pressure industrial pipeline systems. The product employs special manufacturing processes and strict quality control to ensure excellent performance even under extra-large diameter conditions. The DN4500 welded ball valve is suitable for critical applications such as large-scale natural gas long-distance transmission pipelines, giant storage and transportation facilities, large petrochemical installations, etc., serving as important equipment for ensuring safe energy transmission. The product features zero leakage, maintenance-free operation, and long life, capable of withstanding extreme operating conditions. The ball and seat are made of special materials with advanced surface treatment technology to ensure excellent sealing performance and operational flexibility even under extra-large diameter conditions. The product is strictly manufactured according to international standards such as API 6D and ASME, making it an ideal choice for extra-large diameter pipeline systems.
Technical Standards
| Item | Technical Standard |
|---|---|
| Nominal Diameter | DN4500 (180") |
| Nominal Pressure | 150Lb-600Lb |
| Operating Temperature | -46℃ to +200℃ |
| Applicable Media | Natural gas, crude oil, refined oil, seawater, etc. |
| Body Material | A352 LCB, A216 WCB, A217 WC9 |
| Ball Material | A182 F6a, A182 F316, A182 F327 |
| Seal Material | Metal hard 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-4500-150 | 150Lb DN4500 Welded Ball Valve | Ultra-low pressure ultra-large flow, cost-effective |
| FWBV-4500-300 | 300Lb DN4500 Welded Ball Valve | Medium pressure application, stable performance |
| FWBV-4500-600 | 600Lb DN4500 Welded Ball Valve | High pressure application, high strength |
| FWBV-4500-900 | 900Lb DN4500 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 WC9 |
| 2 | Ball | A182 F6a, A182 F316, A182 F327 |
| 3 | Valve Stem | 440C, 17-4PH, A182 F22 |
| 4 | Sealing Ring | Metal seal, Flexible Graphite |
| 5 | Packing | Flexible Graphite, Graphite Braided Packing |
| 6 | Actuator | Cast Steel, Cast Iron |
| 7 | Fasteners | A193 B7, A193 B8M, A320 L7 |
| 8 | Fire-safe Design | Fire-resistant Asbestos, Metal Seal Ring |
No drawing available.
