American threaded flange

American threaded flange

  • Certificate: ISO
  • Standard: ASME B16.5, GB/T 9124.2
  • Material: Forged carbon steel ASTM A105,
    Forged SS ASTM A182, F304 / F316L
  • Flange facing: RF
  • Thread: NPT thread as ASME B1.20.1
  • W. pressure: Class 150 / 300
  • Surface: Oiled / hot dip galvanized,
    Pickling white / No.2B matte finish

Product Details

American threaded flange is similar to slip on flange except the bore is machined to thread, which is attached to external threads of the pipe for connection. The flange is often used for small size high pressure pipeline.

Available size (Class 150)

Size Flange OD O (mm) Bolting (No. x hole) Ref. No.
1/2″ / DN15 / 21.3mm 90 4 x 5/8″ N6401
3/4″ / DN20 / 26.7mm 100 4 x 5/8″ N6402
1″ / DN25 / 33.4mm 110 4 x 5/8″ N6403
1-1/4″ / DN32 / 42.2mm 115 4 x 5/8″ N6404
1-1/2″ / DN40 / 48.3mm 125 4 x 5/8″ N6405
2″ / DN50 / 60.3mm 150 4 x 3/4″ N6406
2-1/2″ / DN65 / 73.0mm 180 4 x 3/4″ N6407
3″ / DN80 / 88.9mm 190 4 x 3/4″ N6408
4″ / DN100 / 114.3mm 230 8 x 3/4″ N6409
5″ / DN125 / 141.3mm 255 8 x 7/8″ N6410
6″ / DN150 / 168.3mm 280 8 x 7/8″ N6411
8″ / DN200 / 219.1mm 345 8 x 7/8″ N6412
10″ / DN250 / 273.0mm 405 12 x 1″ N6413
12″ / DN300 / 323.8mm 485 12 x 1″ N6414
14″ / DN350 / 355.6mm 535 12 x 1-1/8″ N6415
16″ / DN400 / 406.4mm 595 16 x 1-1/8″ N6416
18″ / DN450 / 457.0mm 635 16 x 1-1/4″ N6417
20″ / DN200 / 508.0mm 700 20 x 1-1/4″ N6418
24″ / DN600 / 610.0mm 815 20 x 1-3/8″ N6419

 

Available size (Class 300)

Size Flange OD O (mm) Bolting (No. x hole) Ref. No.
1/2″ / DN15 / 21.3mm 95 4 x 5/8″ N6421
3/4″ / DN20 / 26.7mm 115 4 x 3/4″ N6422
1″ / DN25 / 33.4mm 125 4 x 3/4″ N6423
1-1/4″ / DN32 / 42.2mm 135 4 x 3/4″ N6424
1-1/2″ / DN40 / 48.3mm 155 4 x 7/8″ N6425
2″ / DN50 / 60.3mm 165 8 x 3/4″ N6426
2-1/2″ / DN65 / 73.0mm 190 8 x 7/8″ N6427
3″ / DN80 / 88.9mm 210 8 x 7/8″ N6428
4″ / DN100 / 114.3mm 255 8 x 7/8″ N6429
5″ / DN125 / 141.3mm 280 8 x 7/8″ N6430
6″ / DN150 / 168.3mm 320 12 x 7/8″ N6431
8″ / DN200 / 219.1mm 380 12 x 1″ N6432
10″ / DN250 / 273.0mm 445 16 x 1-1/8″ N6433
12″ / DN300 / 323.8mm 520 16 x 1-1/4″ N6434
14″ / DN350 / 355.6mm 585 20 x 1-1/4″ N6435
16″ / DN400 / 406.4mm 650 20 x 1-3/8″ N6436
18″ / DN450 / 457.0mm 710 24 x 1-3/8″ N6437
20″ / DN200 / 508.0mm 775 24 x 1-3/8″ N6438
24″ / DN600 / 610.0mm 915 24 x 1-5/8″ N6439

 

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