GB系列主要法兰连接尺寸(FM) Main flange connection size
公称压力PN(MPa) Nominal pressure | 公称通径DN(mm) Nominal diameter | D (mm) | D1 (mm) | D2 (mm) | D3 (mm) | C (mm) | f (mm) | f1 (mm) | n-Φd (N0-mm) | 螺栓直径 (M)Bolt diameter |
4.0 | 15 | 95 | 65 | 46 | 40 | 14 | 3 | 4 | 4-Φ14 | 12 |
20 | 105 | 75 | 56 | 51 | 16 | 3 | 4 | 4-Φ14 | 12 | |
25 | 115 | 85 | 65 | 58 | 16 | 3 | 4 | 4-Φ14 | 12 | |
32 | 140 | 100 | 76 | 66 | 18 | 3 | 4 | 4-Φ18 | 16 | |
40 | 150 | 110 | 85 | 76 | 18 | 3 | 4 | 4-Φ18 | 16 | |
50 | 165 | 125 | 99 | 88 | 20 | 3 | 4 | 4-Φ18 | 16 | |
65 | 185 | 145 | 120 | 110 | 22 | 3 | 4 | 8-Φ18 | 16 | |
80 | 200 | 160 | 132 | 121 | 24 | 3 | 4 | 8-Φ18 | 16 | |
100 | 235 | 190 | 156 | 150 | 24 | 3.5 | 4.5 | 8-Φ22 | 20 | |
125 | 270 | 220 | 184 | 176 | 26 | 3.5 | 4.5 | 8-Φ26 | 24 | |
150 | 300 | 250 | 211 | 204 | 28 | 3.5 | 4.5 | 8-Φ26 | 24 | |
200 | 375 | 320 | 284 | 260 | 34 | 3.5 | 4.5 | 12-Φ30 | 27 | |
250 | 450 | 385 | 345 | 313 | 38 | 3.5 | 4.5 | 12-Φ33 | 30 | |
300 | 515 | 450 | 409 | 364 | 42 | 3.5 | 4.5 | 16-Φ33 | 30 | |
350 | 580 | 510 | 465 | 422 | 46 | 4 | 5 | 16-Φ36 | 33 | |
400 | 660 | 585 | 535 | 474 | 50 | 4 | 5 | 16-Φ39 | 36 | |
450 | 685 | 610 | 560 | 524 | 57 | 4 | 5 | 20-Φ39 | 36 | |
500 | 755 | 670 | 615 | 576 | 57 | 4 | 5 | 20-Φ42 | 39 | |
600 | 890 | 795 | 735 | 676 | 72 | 4 | 5 | 20-Φ48 | 45 | |
6.3 | 15 | 105 | 75 | 46 | 40 | 20 | 3 | 4 | 4-Φ14 | 12 |
20 | 130 | 90 | 56 | 51 | 20 | 3 | 4 | 4-Φ18 | 16 | |
25 | 140 | 100 | 65 | 58 | 24 | 3 | 4 | 4-Φ18 | 16 | |
32 | 155 | 110 | 76 | 66 | 24 | 3 | 4 | 4-Φ22 | 20 | |
40 | 170 | 125 | 84 | 76 | 26 | 3 | 4 | 4-Φ22 | 20 | |
50 | 180 | 135 | 99 | 88 | 26 | 3 | 4 | 4-Φ22 | 20 | |
65 | 205 | 160 | 118 | 110 | 26 | 3 | 4 | 8-Φ22 | 20 | |
80 | 215 | 170 | 132 | 121 | 28 | 3 | 4 | 8-Φ22 | 20 | |
100 | 250 | 200 | 156 | 150 | 30 | 3.5 | 4.5 | 8-Φ26 | 24 | |
125 | 295 | 240 | 184 | 176 | 34 | 3.5 | 4.5 | 8-Φ30 | 27 | |
150 | 345 | 280 | 211 | 204 | 36 | 3.5 | 4.5 | 8-Φ33 | 30 | |
200 | 415 | 345 | 284 | 260 | 42 | 3.5 | 4.5 | 12-Φ36 | 33 | |
250 | 470 | 400 | 345 | 313 | 46 | 3.5 | 4.5 | 12-Φ36 | 33 | |
300 | 530 | 460 | 409 | 364 | 52 | 3.5 | 4.5 | 16-Φ36 | 30 | |
350 | 600 | 525 | 465 | 422 | 56 | 4 | 5 | 16-Φ39 | 36 | |
400 | 670 | 585 | 535 | 474 | 60 | 4 | 5 | 16-Φ42 | 39 | |
10.0 | 15 | 105 | 75 | 46 | 40 | 20 | 3 | 4 | 4-Φ14 | 12 |
20 | 130 | 90 | 56 | 51 | 20 | 3 | 4 | 4-Φ18 | 16 | |
25 | 140 | 100 | 65 | 58 | 20 | 3 | 4 | 4-Φ18 | 16 | |
32 | 155 | 110 | 76 | 66 | 24 | 3 | 4 | 4-Φ22 | 20 | |
40 | 170 | 125 | 84 | 76 | 26 | 3 | 4 | 4-Φ22 | 20 | |
50 | 195 | 145 | 99 | 88 | 28 | 3 | 4 | 4-Φ26 | 24 | |
65 | 220 | 170 | 120 | 110 | 30 | 3 | 4 | 8-Φ26 | 24 | |
80 | 230 | 180 | 132 | 121 | 32 | 3 | 4 | 8-Φ26 | 24 | |
100 | 265 | 210 | 156 | 150 | 36 | 3.5 | 4.5 | 8-Φ30 | 27 | |
125 | 315 | 250 | 184 | 176 | 40 | 3.5 | 4.5 | 8-Φ33 | 30 | |
150 | 355 | 290 | 211 | 204 | 44 | 3.5 | 4.5 | 12-Φ33 | 30 | |
200 | 430 | 360 | 284 | 260 | 52 | 3.5 | 4.5 | 12-Φ36 | 33 | |
250 | 505 | 430 | 345 | 313 | 60 | 3.5 | 4.5 | 12-Φ39 | 36 | |
300 | 585 | 500 | 409 | 364 | 68 | 3.5 | 4.5 | 16-Φ42 | 39 | |
350 | 655 | 560 | 465 | 422 | 74 | 4 | 5 | 16-Φ48 | 45 | |
400 | 715 | 620 | 535 | 474 | 86 | 4 | 5 | 16-Φ48 | 45 | |
16.0 | 15 | 105 | 75 | 46 | 40 | 26 | 3 | 4 | 4-Φ14 | 12 |
20 | 130 | 90 | 56 | 51 | 30 | 3 | 4 | 4-Φ18 | 16 | |
25 | 140 | 100 | 65 | 58 | 32 | 3 | 4 | 4-Φ18 | 16 | |
32 | 155 | 110 | 76 | 66 | 34 | 3 | 4 | 4-Φ22 | 20 | |
40 | 170 | 125 | 84 | 76 | 36 | 3 | 4 | 4-Φ22 | 20 | |
50 | 195 | 145 | 99 | 88 | 38 | 3 | 4 | 4-Φ26 | 24 | |
65 | 220 | 170 | 118 | 110 | 42 | 3 | 4 | 8-Φ26 | 24 | |
80 | 230 | 180 | 132 | 121 | 46 | 3 | 4 | 8-Φ26 | 24 | |
100 | 265 | 210 | 156 | 150 | 52 | 3.5 | 4.5 | 8-Φ30 | 27 | |
125 | 315 | 250 | 184 | 176 | 56 | 3.5 | 4.5 | 8-Φ33 | 30 | |
150 | 355 | 290 | 211 | 204 | 62 | 3.5 | 4.5 | 12-Φ33 | 30 | |
200 | 430 | 360 | 284 | 260 | 66 | 3.5 | 4.5 | 12-Φ36 | 33 | |
250 | 515 | 430 | 345 | 313 | 76 | 3.5 | 4.5 | 12-Φ42 | 39 | |
300 | 585 | 500 | 409 | 364 | 88 | 3.5 | 4.5 | 16-Φ42 | 39 |
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