Single flange (A)
Bolt and nut
Bolt the use of advanced technology production, bolts and nuts reached the national standard of eight or above, while elongation of bolts also made a corresponding optimization constraints, making installation, pipe internal pressure increases, the joint is not open to possible, thus ensuring the seal stability.
Dimension Table
DN | D | D1 | DK | B | DO | N |
50 | 165 | 56 | 56 | 20 | 18 | 4 |
65 | 185 | 145 | 72 | 20 | 18 | 4 |
80 | 200 | 160 | 84 | 27 | 17.5 | 8 |
100 | 220 | 180 | 103 | 27 | 17.5 | 8 |
125 | 250 | 210 | 128 | 26 | 18 | 8 |
200 | 340 | 295 | 214 | 30 | 22 | 12 |
250 | 405 | 355 | 268 | 32 | 26 | 12 |
300 | 460 | 410 | 320 | 32 | 26 | 12 |
350 | 520 | 470 | 342 | 36 | 26 | 16 |
single flange (A)




