| Nominal Pipe Size | DN | Outside Diameter (mm) | Close Nipple Length | Short Nipple Length | Long Nipple Length |
|---|---|---|---|---|---|
| 1/8" | 6 | 10.3 | 3/4" | 1-1/2" | 2"–12" |
| 1/4" | 8 | 13.7 | 7/8" | 1-1/2" | 2"–12" |
| 3/8" | 10 | 17.1 | 1" | 1-1/2" | 2"–12" |
| 1/2" | 15 | 21.3 | 1-1/8" | 1-1/2" | 2"–12" |
| 3/4" | 20 | 26.7 | 1-3/8" | 2" | 2-1/2"–12" |
| 1" | 25 | 33.4 | 1-1/2" | 2" | 2-1/2"–12" |
| 1-1/4" | 32 | 42.2 | 1-5/8" | 2-1/2" | 3"–12" |
| 1-1/2" | 40 | 48.3 | 1-3/4" | 2-1/2" | 3"–12" |
| 2" | 50 | 60.3 | 2" | 2-1/2" | 3"–12" |
| 2-1/2" | 65 | 73.0 | 2-1/2" | 3" | 3-1/2"–12" |
| 3" | 80 | 88.9 | 2-5/8" | 3" | 3-1/2"–12" |
| 3-1/2" | 90 | 101.6 | 2-3/4" | 4" | 4-1/2"–12" |
| 4" | 100 | 114.3 | 2-7/8" | 4" | 4-1/2"–12" |
| 5" | 125 | 141.3 | 3" | 4-1/2" | 5"–12" |
| 6" | 150 | 168.3 | 3-1/8" | 4-1/2" | 5"–12" |
| NPS | DN | OD (mm) | Schedule 40 / STD (mm) | Schedule 80 / XS (mm) | Close Length |
|---|---|---|---|---|---|
| 1/2" | 15 | 21.3 | 2.77 | 3.73 | 1-1/8" |
| 3/4" | 20 | 26.7 | 2.87 | 3.91 | 1-3/8" |
| 1" | 25 | 33.4 | 3.38 | 4.55 | 1-1/2" |
| 1-1/4" | 32 | 42.2 | 3.56 | 4.85 | 1-5/8" |
| 1-1/2" | 40 | 48.3 | 3.68 | 5.08 | 1-3/4" |
| 2" | 50 | 60.3 | 3.91 | 5.54 | 2" |
| 2-1/2" | 65 | 73.0 | 5.16 | 7.01 | 2-1/2" |
| 3" | 80 | 88.9 | 5.49 | 7.62 | 2-5/8" |
| 4" | 100 | 114.3 | 6.02 | 8.56 | 2-7/8" |
| 5" | 125 | 141.3 | 6.55 | 9.53 | 3" |
| 6" | 150 | 168.3 | 7.11 | 10.97 | 3-1/8" |
| NPS | Schedule 40 / STD kg/m |
Schedule 80 / XS kg/m |
Schedule 160 kg/m |
XXS kg/m |
|---|---|---|---|---|
| 1/8" | 0.37 | 0.47 | — | — |
| 1/4" | 0.63 | 0.80 | — | — |
| 3/8" | 0.84 | 1.10 | — | — |
| 1/2" | 1.27 | 1.62 | 1.95 | 2.55 |
| 3/4" | 1.69 | 2.20 | 2.90 | 3.64 |
| 1" | 2.50 | 3.24 | 4.24 | 5.45 |
| 1-1/4" | 3.39 | 4.47 | 5.61 | 7.77 |
| 1-1/2" | 4.05 | 5.41 | 7.25 | 9.55 |
| 2" | 5.44 | 7.48 | 11.11 | 13.44 |
| 2-1/2" | 8.63 | 11.41 | 14.92 | 20.39 |
| 3" | 11.29 | 15.27 | 21.35 | 27.68 |
| 3-1/2" | 13.57 | 18.64 | — | — |
| 4" | 16.08 | 22.32 | 33.54 | 41.03 |
| 5" | 21.77 | 30.97 | 49.12 | 57.43 |
| 6" | 28.26 | 42.56 | 67.57 | 79.22 |
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.