Weld neck flanges
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| Name | Center distance of mounting holes, K (mm) | Collar diameter at base, N (mm) | Collar height, H2 (mm) | Diameter of the collar for welding, A (mm) | Flange thickness, C2 (mm) | Flange type | Hole diameter, L (mm) | Material | Nominal diameter, DN | Nominal pressure, Class | Nominal size, NPS (inch) | Number of holes, n | Radius of curvature, R1 (mm) | Standard | Steel grade | Thread | Type of connecting surface | Weight 1 pc (kg) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Weld neck flange DN25 PN320 Type 11/C EN 1092-1 | 115 | 68 | 78 | 33.7 | 34 | Type 11 - weld neck | 22 | Black | 25 | 0 | — | 4 | 4 | EN 1092-1 | P265GH / 1.0425 | M20 | Type C - with tongue | 5.18 |
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| Weld neck flange DN25 PN320 Type 11/C EN 1092-1 | 115 | 68 | 78 | 33.7 | 34 | Type 11 - weld neck | 22 | Black | 25 | 0 | — | 4 | 4 | EN 1092-1 | P250GH / 1.0460 | M20 | Type C - with tongue | 5.18 |
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| Weld neck flange DN25 PN320 Type 11/C EN 1092-1 | 115 | 68 | 78 | 33.7 | 34 | Type 11 - weld neck | 22 | Black | 25 | 0 | — | 4 | 4 | EN 1092-1 | P245GH / 1.0352 | M20 | Type C - with tongue | 5.18 |
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| Weld neck flange DN25 PN320 Type 11/C EN 1092-1 | 115 | 68 | 78 | 33.7 | 34 | Type 11 - weld neck | 22 | Black | 25 | 0 | — | 4 | 4 | EN 1092-1 | P235GH / 1.0345 | M20 | Type C - with tongue | 5.18 |
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| Weld neck flange DN25 PN320 Type 11/C EN 1092-1 | 115 | 68 | 78 | 33.7 | 34 | Type 11 - weld neck | 22 | Black | 25 | 0 | — | 4 | 4 | EN 1092-1 | S355J2 / 1.0577 | M20 | Type C - with tongue | 5.18 |
|
| Weld neck flange DN25 PN320 Type 11/C EN 1092-1 | 115 | 68 | 78 | 33.7 | 34 | Type 11 - weld neck | 22 | Black | 25 | 0 | — | 4 | 4 | EN 1092-1 | S235JR / 1.0038 | M20 | Type C - with tongue | 5.18 |
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| Stainless steel weld neck flange DN150 CL2500 Type 11/DS EN 1759-1 | 368.3 | 235 | 0 | 168.3 | 108 | Type 11 - weld neck | 54 | Stainless steel | 150 | 2500 | — | 8 | 15.5 | EN 1759-1 | X2CrNiMoN17-11-2 / 1.4401 | M52x4 | Type DS - with small groove | 158.36 |
|
| Stainless steel weld neck flange DN150 CL2500 Type 11/DS EN 1759-1 | 368.3 | 235 | 0 | 168.3 | 108 | Type 11 - weld neck | 54 | Stainless steel | 150 | 2500 | — | 8 | 15.5 | EN 1759-1 | X6CrNiMoTi17-12-2 / 1.4571 | M52x4 | Type DS - with small groove | 158.36 |
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| Stainless steel weld neck flange DN150 CL2500 Type 11/DS EN 1759-1 | 368.3 | 235 | 0 | 168.3 | 108 | Type 11 - weld neck | 54 | Stainless steel | 150 | 2500 | — | 8 | 15.5 | EN 1759-1 | X2CrNiMo17-12-2 / 1.4404 | M52x4 | Type DS - with small groove | 158.36 |
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| Stainless steel weld neck flange DN150 CL2500 Type 11/DS EN 1759-1 | 368.3 | 235 | 0 | 168.3 | 108 | Type 11 - weld neck | 54 | Stainless steel | 150 | 2500 | — | 8 | 15.5 | EN 1759-1 | X6CrNiTi18-10 / 1.4541 | M52x4 | Type DS - with small groove | 158.36 |
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