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2. Dimensions of EN1092-1 PN16 Type 01 SO Plate Flange
| NPS DN | Outside Diameter D | Bolt Circle Diameter K | Diameter of Bolt Hole L | Nos. Of Bolts | Flange Thickness C1 | Inside Diameter B1 | Diameter of Raised Face D1 |
| 15(21.3) | 95 | 65 | 14 | 4 | 14 | 22 | 45 |
| 20(26.9) | 105 | 75 | 14 | 4 | 16 | 27.5 | 58 |
| 25(33.7) | 115 | 85 | 14 | 4 | 16 | 34.5 | 68 |
| 32(42.4) | 140 | 100 | 18 | 4 | 18 | 43.5 | 78 |
| 40(48.3) | 150 | 110 | 18 | 4 | 18 | 49.5 | 88 |
| 50(60.3) | 165 | 125 | 18 | 4 | 20 | 61.5 | 102 |
| 65(76.1) | 185 | 145 | 18 | 4* | 20 | 77.5 | 122 |
| 80(88.9) | 200 | 160 | 18 | 8 | 20 | 90.5 | 138 |
| 100(114.3) | 220 | 180 | 18 | 8 | 22 | 116 | 158 |
| 125(139.7) | 250 | 210 | 18 | 8 | 22 | 141.5 | 188 |
| 150(168.3) | 285 | 240 | 22 | 8 | 24 | 170.5 | 212 |
| 200(219.1) | 340 | 295 | 22 | 12 | 26 | 221.5 | 268 |
| 250(273) | 405 | 355 | 26 | 12 | 29 | 276.5 | 320 |
| 300(323.9) | 460 | 410 | 26 | 12 | 32 | 327.5 | 378 |
| 350(355.6) | 520 | 470 | 26 | 16 | 35 | 359 | 438 |
| 400(406.4) | 580 | 525 | 30 | 16 | 38 | 411 | 490 |
| 450(457) | 640 | 585 | 30 | 20 | 42 | 462 | 550 |
| 500(508) | 715 | 650 | 33 | 20 | 46 | 513.5 | 610 |
3. Tolerance of dimensions
| D | K | C1 | B1 | D1 | RF HEIGHT |
| <150±2 >150<500±3 | M10 to M24±1 M27 to M45±1.5 | ≤18±1 >18≤50±1.5 | ≤100+0.5-0 >100≤400+1-0 >400≤600+1.5-0 | ≤250+2-1 >250+3-1 | +0-1 |
1. All dimensions are in mm unless otherwise specified.
2. Raised face finish: 3.2-12.5 Ra serrated spiral.
3. Raised face height: 2mm.
4. Stock materials available: S235JR, St37.2, C22.8, A105, SS304(L), SS316(L).
Jinan Aowei offers Steel Plate Flange in A105N, A105, ST37.2, C22.8, P245GH, ST37.2 High Yield & Carbon steel.
Email summer@jnaowei.com for all your flange buying needs.