| NPS | DN |
Outside Diameter (D) |
Diameter of Bolt Circle (K) |
Diameter of Bolt Hole (L) inches (mm) |
Number of Bolts |
Nominal Diameter of Bolts (Inches) |
Flange Thickness (C) | Hub Diameter (N) |
Hub Diameter at weld end (A) |
Hub Radius (min) (R1) |
|---|---|---|---|---|---|---|---|---|---|---|
| 1/2 | 15 | 95 | 66,7 | 5/8 (15,9) | 4 | 1/2 | 14,3 | 38 | 21,3 | 3 |
| 3/4 | 20 | 117 | 82,6 | 3/4 (19,0) | 4 | 5/8 | 15,9 | 48 | 26,7 | 3 |
| 1 | 25 | 124 | 88,9 | 3/4 (19,0) | 4 | 5/8 | 17,5 | 54 | 33,4 | 3 |
| 1-1/4 | 32 | 133 | 98,4 | 3/4 (19,0) | 4 | 5/8 | 19,0 | 64 | 42,2 | 3 |
| 1-1/2 | 40 | 156 | 114,3 | 7/8 (22,2) | 4 | 3/4 | 20,6 | 70 | 48,3 | 3 |
| 2 | 50 | 165 | 127,0 | 3/4 (19,0) | 8 | 5/8 | 22,2 | 84 | 60,3 | 3 |
| 2-1/2 | 65 | 190 | 149,2 | 7/8 (22,2) | 8 | 3/4 | 25,4 | 100 | 73,0 | 3 |
| 3 | 80 | 210 | 168,3 | 7/8 (22,2) | 8 | 3/4 | 28,6 | 117 | 88,9 | 3 |
| 4 | 100 | 254 | 200,0 | 7/8 (22,2) | 8 | 3/4 | 31,8 | 146 | 114,3 | 3 |
| 5 | 125 | 279 | 235,0 | 7/8 (22,2) | 8 | 3/4 | 34,9 | 178 | 141,3 | 6,5 |
| 6 | 150 | 318 | 269,9 | 7/8 (22,2) | 12 | 3/4 | 36,5 | 206 | 168,3 | 6,5 |
| 8 | 200 | 381 | 330,2 | 1 (25,4) | 12 | 7/8 | 41,3 | 260 | 219,1 | 6,5 |
| 10 | 250 | 444 | 387,4 | 1-1/8 (28,6) | 16 | 1 | 47,6 | 321 | 273,0 | 6,5 |
| 12 | 300 | 521 | 450,8 | 1-1/4 (31,8) | 16 | 1-1/8 | 50,8 | 375 | 323,9 | 9,5 |
| 14 | 350 | 584 | 514,4 | 1-1/4 (31,8) | 20 | 1-1/8 | 54,0 | 425 | 355,6 | 9,5 |
| 16 | 400 | 648 | 571,5 | 1-3/8 (34,9) | 20 | 1-1/4 | 57,2 | 483 | 406,4 | 9,5 |
| 18 | 450 | 711 | 628,6 | 1-3/8 (34,9) | 24 | 1-1/4 | 60,3 | 533 | 457,2 | 9,5 |
| 20 | 500 | 775 | 685,8 | 1-3/8 (34,9) | 24 | 1-1/4 | 63,5 | 587 | 508,0 | 9,5 |
| 24 | 600 | 914 | 812,8 | 1-5/8 (41,3) | 24 | 1-1/2 | 69,8 | 702 | 609,6 | 9,5 |
Precision Engineering. Technical Expertise. Global Supply.
