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  • All dimensions are in inches.
  • These flanges will be supplied with a 1/16" raised face unless otherwise specified.
  • Flat face option available.

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ASME B16.47 Welding Neck Flange
Unit of Measure
1 

Item #

Nominal Pipe Size

Outside Diameter (O)

Minimum Thickness (T)

Raised Face Diameter (R)

Length Thru Hub (Y)

Hub Diameter (X)

Minimum Fillet Radius (r)

Top of Hub (A)

Bore (B)

Bolt Circle (C)

Number of Holes

Diameter of Holes

Approximate Weight

26300WNSB N/A 26 N/A 34.12 in N/A 3.50 in N/A 29.00 in N/A 5.69 in N/A 27.62 in N/A 0.56 in N/A 26.19 in N/A Specified by purchaser N/A 31.62 in N/A 32 N/A 1.38 in N/A 400 lb
28300WNSB N/A 28 N/A 36.25 in N/A 3.50 in N/A 31.00 in N/A 5.88 in N/A 29.75 in N/A 0.56 in N/A 28.19 in N/A Specified by purchaser N/A 33.75 in N/A 36 N/A 1.38 in N/A 450 lb
30300WNSB N/A 30 N/A 39.00 in N/A 3.69 in N/A 33.25 in N/A 6.22 in N/A 32.00 in N/A 0.56 in N/A 30.25 in N/A Specified by purchaser N/A 36.25 in N/A 36 N/A 1.50 in N/A 550 lb
32300WNSB N/A 32 N/A 41.50 in N/A 4.06 in N/A 35.50 in N/A 6.62 in N/A 34.00 in N/A 0.62 in N/A 32.25 in N/A Specified by purchaser N/A 38.50 in N/A 32 N/A 1.62 in N/A 685 lb
34300WNSB N/A 34 N/A 43.62 in N/A 4.06 in N/A 37.50 in N/A 6.81 in N/A 36.12 in N/A 0.62 in N/A 34.25 in N/A Specified by purchaser N/A 40.62 in N/A 36 N/A 1.62 in N/A 750 lb
36300WNSB N/A 36 N/A 46.12 in N/A 4.06 in N/A 39.75 in N/A 7.12 in N/A 38.00 in N/A 0.62 in N/A 36.25 in N/A Specified by purchaser N/A 42.88 in N/A 32 N/A 1.75 in N/A 840 lb
38300WNSB N/A 38 N/A 48.12 in N/A 4.38 in N/A 41.75 in N/A 7.56 in N/A 40.00 in N/A 0.62 in N/A 38.25 in N/A Specified by purchaser N/A 44.88 in N/A 36 N/A 1.75 in N/A 915 lb
40300WNSB N/A 40 N/A 50.12 in N/A 4.56 in N/A 43.88 in N/A 7.81 in N/A 42.00 in N/A 0.62 in N/A 40.25 in N/A Specified by purchaser N/A 46.88 in N/A 40 N/A 1.75 in N/A 990 lb
42300WNSB N/A 42 N/A 52.50 in N/A 4.69 in N/A 46.00 in N/A 8.06 in N/A 44.00 in N/A 0.62 in N/A 42.31 in N/A Specified by purchaser N/A 49.00 in N/A 36 N/A 1.88 in N/A 1135 lb
44300WNSB N/A 44 N/A 54.50 in N/A 5.00 in N/A 48.00 in N/A 8.44 in N/A 46.19 in N/A 0.62 in N/A 44.31 in N/A Specified by purchaser N/A 51.00 in N/A 40 N/A 1.88 in N/A 1235 lb
46300WNSB N/A 46 N/A 57.50 in N/A 5.06 in N/A 50.00 in N/A 8.75 in N/A 48.38 in N/A 0.62 in N/A 46.31 in N/A Specified by purchaser N/A 53.75 in N/A 36 N/A 2.00 in N/A 1470 lb
48300WNSB N/A 48 N/A 59.50 in N/A 5.06 in N/A 52.25 in N/A 8.81 in N/A 50.31 in N/A 0.62 in N/A 48.31 in N/A Specified by purchaser N/A 55.75 in N/A 40 N/A 2.00 in N/A 1575 lb
50300WNSB N/A 50 N/A 61.50 in N/A 5.44 in N/A 54.25 in N/A 9.25 in N/A 52.38 in N/A 0.62 in N/A 50.31 in N/A Specified by purchaser N/A 57.75 in N/A 44 N/A 2.00 in N/A 1710 lb
52300WNSB N/A 52 N/A 63.50 in N/A 5.62 in N/A 56.25 in N/A 9.56 in N/A 54.44 in N/A 0.62 in N/A 52.31 in N/A Specified by purchaser N/A 59.75 in N/A 48 N/A 2.00 in N/A 1840 lb
54300WNSB N/A 54 N/A 65.88 in N/A 5.38 in N/A 58.25 in N/A 9.44 in N/A 56.50 in N/A 0.62 in N/A 54.31 in N/A Specified by purchaser N/A 62.12 in N/A 48 N/A 2.00 in N/A 1980 lb
56300WNSB N/A 56 N/A 69.50 in N/A 6.06 in N/A 60.50 in N/A 10.56 in N/A 58.81 in N/A 0.69 in N/A 56.31 in N/A Specified by purchaser N/A 65.00 in N/A 36 N/A 2.38 in N/A 2595 lb
58300WNSB N/A 58 N/A 71.94 in N/A 6.06 in N/A 62.75 in N/A 10.81 in N/A 60.94 in N/A 0.69 in N/A 58.31 in N/A Specified by purchaser N/A 67.44 in N/A 40 N/A 2.38 in N/A 2770 lb
60300WNSB N/A 60 N/A 73.94 in N/A 5.94 in N/A 65.00 in N/A 10.69 in N/A 62.94 in N/A 0.69 in N/A 60.31 in N/A Specified by purchaser N/A 69.44 in N/A 40 N/A 2.38 in N/A 2870 lb
Unit of Measure
1