| NPS | Bolt Circle (mm) | Flange O.D. (mm) | Thickness (mm) | Bolt Hole Ø (mm) | No. Of Bolts |
|---|---|---|---|---|---|
| ½″ | 95 | 108 | 16 | 14 | 4 |
| ¾″ | 105 | 120 | 16 | 14 | 4 |
| 1″ | 115 | 130 | 18 | 14 | 4 |
| 1½″ | 130 | 150 | 20 | 16 | 4 |
| 2″ | 145 | 165 | 22 | 16 | 4 |
| 2½″ | 160 | 180 | 24 | 18 | 4 |
| 3″ | 170 | 190 | 26 | 18 | 4 |
| 4″ | 190 | 210 | 28 | 18 | 8 |
| 5″ | 210 | 230 | 30 | 20 | 8 |
| 6″ | 230 | 250 | 32 | 20 | 8 |
| 8″ | 250 | 280 | 34 | 22 | 8 |
| 10″ | 270 | 300 | 36 | 22 | 8 |
| 12″ | 300 | 330 | 38 | 24 | 12 |
| 14″ | 320 | 360 | 40 | 24 | 12 |
| NPS | Class | Weight / Pc (kg) |
|---|---|---|
| ½″ | 150 | 0.90 |
| ¾″ | 150 | 0.90 |
| 1″ | 150 | 0.90 |
| 1¼″ | 150 | 1.40 |
| 1½″ | 150 | 1.80 |
| 2″ | 150 | 5.07 |
| 2½″ | 150 | 3.20 |
| 3″ | 150 | 9.03 |
| 3½″ | 150 | 5.90 |
| 4″ | 150 | 7.70 |
| 5″ | 150 | 9.00 |
| 6″ | 150 | 12.20 |
| 8″ | 150 | 21.20 |
| 10″ | 150 | 31.50 |
| 12″ | 150 | 55.40 |
| 14″ | 150 | 62.96 |
| 16″ | 150 | 80.97 |
| 18″ | 150 | 99.00 |
| 20″ | 150 | 128.28 |
| 22″ | 150 | 159.80 |
| 24″ | 150 | 193.50 |
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.