Weld Neck Flange Weight Calculator
Weld neck flanges are widely used in piping systems due to their robust design and ability to withstand high pressures and temperatures. Here’s a comprehensive table with key information about weld neck flange weights:
Weld Neck Flange Weight Table
| NPS (in) | Class 150 Weight (kg) | Class 300 Weight (kg) | Class 600 Weight (kg) | Class 900 Weight (kg) |
|---|---|---|---|---|
| 1/2 | 1 | 1.5 | 2 | 3 |
| 3/4 | 1 | 2 | 3 | 4 |
| 1 | 1 | 2.5 | 4 | 5 |
| 1-1/4 | 1 | 3 | 5 | 7 |
| 1-1/2 | 2 | 4 | 6 | 9 |
| 2 | 3 | 5 | 8 | 12 |
| 2-1/2 | 4 | 7 | 11 | 16 |
| 3 | 5 | 9 | 14 | 21 |
| 4 | 7 | 13 | 21 | 32 |
| 6 | 11 | 23 | 39 | 59 |
| 8 | 18 | 37 | 64 | 98 |
| 10 | 24 | 55 | 98 | 152 |
| 12 | 36 | 78 | 140 | 220 |
Key Points to Remember
- Weight Variation: The weight of weld neck flanges increases with both size (NPS) and pressure class.
- Material Impact: The weights provided are approximate and may vary slightly depending on the material used (e.g., carbon steel, stainless steel).
- Dimensional Factors: The weight is influenced by various dimensions, including outside diameter, thickness, hub diameter, and length through hub.
- Pressure Class: Higher pressure classes generally result in heavier flanges due to increased material thickness.
- Standards: Weld neck flange dimensions and weights typically conform to ASME B16.5 standards.
- Application Considerations: When selecting a weld neck flange, consider not only the weight but also factors like pressure rating, temperature requirements, and corrosion resistance.
- Installation: The weight of the flange can affect handling and installation procedures, especially for larger sizes.
- Cost Implications: Heavier flanges generally cost more due to increased material usage.
This table and information provide a comprehensive overview of weld neck flange weights across different sizes and pressure classes, helping in the selection and planning processes for piping systems.