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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)

Approximate Weight

Bolt Circle (C)

Number of Holes

Diameter of Holes

26300WNSA N/A 26 N/A 38.25 in N/A 3.12 in N/A 29.50 in N/A 7.25 in N/A 28.38 in N/A 0.38 in N/A 26.00 in N/A Specified by purchaser N/A 605 lb N/A 34.50 in N/A 28 N/A 1.75 in
28300WNSA N/A 28 N/A 40.75 in N/A 3.38 in N/A 31.50 in N/A 7.75 in N/A 30.50 in N/A 0.44 in N/A 28.00 in N/A Specified by purchaser N/A 745 lb N/A 37.00 in N/A 28 N/A 1.75 in
30300WNSA N/A 30 N/A 43.00 in N/A 3.62 in N/A 33.75 in N/A 8.25 in N/A 32.56 in N/A 0.44 in N/A 30.00 in N/A Specified by purchaser N/A 870 lb N/A 39.25 in N/A 28 N/A 1.88 in
32300WNSA N/A 32 N/A 45.25 in N/A 3.88 in N/A 36.00 in N/A 8.75 in N/A 34.69 in N/A 0.44 in N/A 32.00 in N/A Specified by purchaser N/A 1005 lb N/A 41.50 in N/A 28 N/A 2.00 in
34300WNSA N/A 34 N/A 47.50 in N/A 4.00 in N/A 38.00 in N/A 9.12 in N/A 36.88 in N/A 0.50 in N/A 34.00 in N/A Specified by purchaser N/A 1145 lb N/A 43.50 in N/A 28 N/A 2.00 in
36300WNSA N/A 36 N/A 50.00 in N/A 4.12 in N/A 40.25 in N/A 9.50 in N/A 39.00 in N/A 0.50 in N/A 36.00 in N/A Specified by purchaser N/A 1275 lb N/A 46.00 in N/A 32 N/A 2.12 in
38300WNSA N/A 38 N/A 46.00 in N/A 4.25 in N/A 40.50 in N/A 7.12 in N/A 39.12 in N/A 0.50 in N/A 38.00 in N/A Specified by purchaser N/A 695 lb N/A 43.00 in N/A 32 N/A 1.62 in
40300WNSA N/A 40 N/A 48.75 in N/A 4.50 in N/A 42.75 in N/A 7.62 in N/A 41.25 in N/A 0.50 in N/A 40.00 in N/A Specified by purchaser N/A 840 lb N/A 45.50 in N/A 32 N/A 1.75 in
42300WNSA N/A 42 N/A 50.75 in N/A 4.69 in N/A 44.75 in N/A 7.88 in N/A 43.25 in N/A 0.50 in N/A 42.00 in N/A Specified by purchaser N/A 950 lb N/A 47.50 in N/A 32 N/A 1.75 in
44300WNSA N/A 44 N/A 53.25 in N/A 4.88 in N/A 47.00 in N/A 8.12 in N/A 45.25 in N/A 0.50 in N/A 44.00 in N/A Specified by purchaser N/A 1055 lb N/A 49.75 in N/A 32 N/A 1.88 in
46300WNSA N/A 46 N/A 55.75 in N/A 5.06 in N/A 49.00 in N/A 8.50 in N/A 47.38 in N/A 0.50 in N/A 46.00 in N/A Specified by purchaser N/A 1235 lb N/A 52.00 in N/A 28 N/A 2.00 in
48300WNSA N/A 48 N/A 57.75 in N/A 5.25 in N/A 51.25 in N/A 8.81 in N/A 49.38 in N/A 0.50 in N/A 48.00 in N/A Specified by purchaser N/A 1380 lb N/A 54.00 in N/A 32 N/A 2.00 in
50300WNSA N/A 50 N/A 60.25 in N/A 5.50 in N/A 53.50 in N/A 9.12 in N/A 51.38 in N/A 0.50 in N/A 50.00 in N/A Specified by purchaser N/A 1530 lb N/A 56.25 in N/A 32 N/A 2.12 in
52300WNSA N/A 52 N/A 62.25 in N/A 5.69 in N/A 55.50 in N/A 9.38 in N/A 53.38 in N/A 0.50 in N/A 52.00 in N/A Specified by purchaser N/A 1660 lb N/A 58.25 in N/A 32 N/A 2.12 in
54300WNSA N/A 54 N/A 65.25 in N/A 6.00 in N/A 57.75 in N/A 9.94 in N/A 55.50 in N/A 0.50 in N/A 54.00 in N/A Specified by purchaser N/A 2050 lb N/A 61.00 in N/A 28 N/A 2.38 in
56300WNSA N/A 56 N/A 67.25 in N/A 6.06 in N/A 59.75 in N/A 10.25 in N/A 57.62 in N/A 0.50 in N/A 56.00 in N/A Specified by purchaser N/A 2155 lb N/A 63.00 in N/A 28 N/A 2.38 in
58300WNSA N/A 58 N/A 69.25 in N/A 6.25 in N/A 62.00 in N/A 10.50 in N/A 59.62 in N/A 0.50 in N/A 58.00 in N/A Specified by purchaser N/A 2270 lb N/A 65.00 in N/A 32 N/A 2.38 in
60300WNSA N/A 60 N/A 71.25 in N/A 6.44 in N/A 64.00 in N/A 10.75 in N/A 61.62 in N/A 0.50 in N/A 60.00 in N/A Specified by purchaser N/A 2470 lb N/A 67.00 in N/A 32 N/A 2.38 in
Unit of Measure
1