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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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Industry Standard Welding Neck Flange
Unit of Measure
1 

Item #

Nominal Pipe Size

Outside Diameter (O)

Thickness (T)

Raised Face Diameter (R)

Length Thru Hub (Y)

Base of Hub Diameter (X)

Diameter of Hub at Bevel (A)

Bore (B)

Approximate Weight

Bolt Circle (C)

Number of Holes

Diameter of Holes

26075WNIS N/A 26 N/A 31.50 in N/A 1.25 in N/A 28.63 in N/A 3.00 in N/A 27.13 in N/A 26.00 in N/A Specified by purchaser N/A 98 lb N/A 29.63 in N/A 32 N/A 1.00 in
28075WNIS N/A 28 N/A 33.50 in N/A 1.25 in N/A 30.63 in N/A 3.00 in N/A 29.13 in N/A 28.00 in N/A Specified by purchaser N/A 105 lb N/A 31.63 in N/A 36 N/A 1.00 in
30075WNIS N/A 30 N/A 35.50 in N/A 1.25 in N/A 32.63 in N/A 3.00 in N/A 31.13 in N/A 30.00 in N/A Specified by purchaser N/A 110 lb N/A 33.63 in N/A 36 N/A 1.00 in
32075WNIS N/A 32 N/A 38.25 in N/A 1.25 in N/A 35.00 in N/A 3.25 in N/A 33.38 in N/A 32.00 in N/A Specified by purchaser N/A 140 lb N/A 36.13 in N/A 36 N/A 1.13 in
34075WNIS N/A 34 N/A 40.25 in N/A 1.25 in N/A 37.00 in N/A 3.25 in N/A 35.38 in N/A 34.00 in N/A Specified by purchaser N/A 150 lb N/A 38.13 in N/A 40 N/A 1.13 in
36075WNIS N/A 36 N/A 42.25 in N/A 1.25 in N/A 39.00 in N/A 3.25 in N/A 37.38 in N/A 36.00 in N/A Specified by purchaser N/A 160 lb N/A 40.13 in N/A 40 N/A 1.13 in
42075WNIS N/A 42 N/A 49.00 in N/A 1.25 in N/A 45.50 in N/A 3.50 in N/A 43.75 in N/A 42.00 in N/A Specified by purchaser N/A 210 lb N/A 46.75 in N/A 48 N/A 1.25 in
48075WNIS N/A 48 N/A 55.00 in N/A 1.25 in N/A 51.50 in N/A 3.75 in N/A 49.75 in N/A 48.00 in N/A Specified by purchaser N/A 240 lb N/A 52.75 in N/A 52 N/A 1.25 in
54075WNIS N/A 54 N/A 61.25 in N/A 1.38 in N/A 57.75 in N/A 4.00 in N/A 56.00 in N/A 54.00 in N/A Specified by purchaser N/A 310 lb N/A 59.00 in N/A 64 N/A 1.25 in
60075WNIS N/A 60 N/A 67.25 in N/A 1.63 in N/A 63.75 in N/A 4.38 in N/A 62.00 in N/A 60.00 in N/A Specified by purchaser N/A 400 lb N/A 65.00 in N/A 72 N/A 1.25 in
66075WNIS N/A 66 N/A 74.00 in N/A 1.88 in N/A 70.13 in N/A 4.88 in N/A 68.00 in N/A 66.00 in N/A Specified by purchaser N/A 560 lb N/A 71.50 in N/A 72 N/A 1.38 in
72075WNIS N/A 72 N/A 80.00 in N/A 2.25 in N/A 76.13 in N/A 5.25 in N/A 74.00 in N/A 72.00 in N/A Specified by purchaser N/A 700 lb N/A 77.50 in N/A 80 N/A 1.38 in
Unit of Measure
1