| NPS | Flange O.D. (mm) | Flange Thickness (mm) | Bolt Hole Ø (mm) | No. Of Bolts | Hub Diameter / Bore (mm) |
|---|---|---|---|---|---|
| ½″ | 88.90 | 11.18 | 16.00 | 4 | 15.75 |
| 1″ | 107.95 | 14.22 | 16.00 | 4 | 26.67 |
| 2″ | 152.40 | 17.53 | 19.05 | 4 | 52.58 |
| 3″ | 190.50 | 20.57 | 19.05 | 4 | 77.98 |
| 4″ | 228.60 | 23.88 | 19.05 | 8 | 103.38 |
| 6″ | 279.40 | 26.92 | 22.23 | 8 | 154.18 |
| 8″ | 342.90 | 30.23 | 22.23 | 8 | 204.98 |
| NPS | Pressure Class | Weight / Pc (kg) |
|---|---|---|
| ½″ | 150, 300, 600 | 1.50 |
| ¾″ | 150, 300, 600 | 2.00 |
| 1″ | 150, 300, 600 | 2.50 |
| 1½″ | 150, 300, 600 | 4.00 |
| 2″ | 150, 300, 600 | 5.00 |
| 3″ | 150, 300, 600 | 8.00 |
| 4″ | 150, 300, 600 | 11.00 |
| 6″ | 150, 300, 600 | 17.00 |
| 8″ | 150, 300, 600 | 25.00 |
| 10″ | 150, 300, 600 | 33.00 |
| 12″ | 150, 300, 600 | 42.00 |
| 14″ | 150, 300, 600 | 52.00 |
| 16″ | 150, 300, 600 | 62.00 |
Each flange follows a rigorous 8-step forging and quality-control process to ensure conformance with ASTM A182 and ASME standards.
Prime 304 stainless steel billet sourced and certified.
Heat to 1100°C – 1250°C for optimal forgeability.
Shape billet into flange geometry under controlled pressure.
Solution anneal at 1040°C – 1120°C, then quench.
CNC machining, drilling, and surface finishing.
Tensile, hardness, PMI, visual and impact tests performed.