Carbon steel WN flange shall be welded on both inner and outer layers. It is generally used in medium and high pressure pipelines. The nominal pressure of the pipeline is between 0.25 ~ 2.5MPa.
Carbon steel WN flange adopts concave convex sealing surface connection, and the installation is complex, so the labor cost, installation method and auxiliary material cost are relatively high.
Strength: 0.6-2.5MPA
Diameter: DN15-DN400
Material: A105,16Mn, 20#
Standard:DIN, ASME, ASME B16.5
ASME/BS B16.5 SCH40 SCH80 ASTM A105 Carbon steel WN flange technical data sheet as below:
DN | diameter | Connection size | Flange thickness | |||||
A | B | D | K | L | M | TH | C | |
15 | 21.3 | 18 | 95 | 65 | 14 | 4 | M12 | 14 |
20 | 26.9 | 25 | 105 | 75 | 14 | 4 | M12 | 16 |
25 | 33.7 | 32 | 115 | 85 | 14 | 4 | M12 | 16 |
32 | 42.4 | 38 | 140 | 100 | 18 | 4 | M16 | 18 |
40 | 48.3 | 45 | 150 | 110 | 18 | 4 | M16 | 18 |
50 | 603 | 57 | 165 | 125 | 18 | 4 | M16 | 20 |
65 | 76.1 | 76 | 185 | 145 | 18 | 4 | M16 | 20 |
80 | 88.9 | 89 | 200 | 160 | 18 | 8 | M16 | 20 |
100 | 114.3 | 108 | 220 | 180 | 18 | 8 | M16 | 22 |
125 | 139.7 | 133 | 250 | 210 | 18 | 8 | M16 | 22 |
150 | 168.3 | 159 | 285 | 240 | 22 | 8 | M20 | 24 |
200 | 219.1 | 219 | 340 | 295 | 22 | 8 | M20 | 24 |
250 | 273 | 273 | 395 | 350 | 22 | 12 | M20 | 26 |
Carbon steel WN flange is not easy to deform, has good sealing and is widely used. It is suitable for pipelines with large fluctuation of pressure or temperature, high temperature, high pressure and low temperature pipelines, or for the connection of pipelines and valves greater than 2.5MPa.
Carbon steel WN flange is mainly used in petroleum, chemical industry, shipbuilding, pharmacy, metallurgy, machinery, food and other industries.