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EN / BS weld-neck flange

EN / BS weld-neck flange

  • Certificate: ISO
  • Standard: EN 1092-1 Type 11, GB/T 9124.1
  • Material: Forged carbon steel EN 10025-2 S235JR,
    Forged SS equivalent to F304 / F316L
  • Flange facing: FF / RF
  • W. pressure: PN 16 / PN 10 / PN 25, etc.
  • Surface: Oiled / hot dip galvanized,
    Pickling white, etc.

Product Details

EN / BS weld-neck flange (WN flange) features a hub whose size matches the pipe for butt welding, so the stress is transferred from the flange to the pipe. It is mainly used for high pressure and temperature applications.

Available size for PN 16

Size Flange OD D(mm) Bolt circle dia. K (mm) Bolting (No.x hole) Ref. No.
1/2″ / DN15 / 21.3mm 95 65 4 x 14 NE4101-PN16
3/4″ / DN20 / 26.9mm 105 75 4 x 14 NE4102-PN16
1″ / DN25 / 33.7mm 115 85 4 x 14 NE4103-PN16
1-1/4″ / DN32 / 42.4mm 140 100 4 x 18 NE4104-PN16
1-1/2″ / DN40 / 48.3mm 150 110 4 x 18 NE4105-PN16
2″ / DN50 / 60.3mm 165 125 4 x 18 NE4106-PN16
2-1/2″ / DN65 / 73.0 / 76.1mm 185 145 8 (4) x 18* NE4107-PN16
3″ / DN80 / 88.9mm 200 160 8 x 18 NE4108-PN16
4″ / DN100 / 114.3mm 220 180 8 x 18 NE4109-PN16
5″ / DN125 / 139.7mm 250 210 8 x 18 NE4110-PN16
6″ / DN150 / 165.1 / 168.3mm 285 240 8 x 22 NE4111-PN16
8″ / DN200 / 219.1mm 340 295 12 x 22 NE4112-PN16
10″ / DN250 / 273.0mm 405 355 12 x 26 NE4113-PN16
12″ / DN300 / 323.9mm 460 410 12 x 26 NE4114-PN16
14″ / DN350 / 355.6mm 520 470 16 x 26 NE4115-PN16

Note: Please download our catalog for more available sizes.

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