• Industry Standard Welding Neck Flange
  • All dimensions are in inches.
  • These flanges will be furnished with a 1/16" raised face unless otherwise specified.
  • Flat face option available.
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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)

Approximate Weight (lbs)

Bolt Circle (C)

Number of Holes

Diameter of Bolt Holes

N/A 26 N/A 32.75 N/A 2.50 N/A 29.50 N/A 5.00 N/A 27.88 N/A Specified by purchaser N/A 245 N/A 30.63 N/A 28 N/A 1.13
N/A 28 N/A 34.75 N/A 2.50 N/A 31.50 N/A 5.00 N/A 29.88 N/A Specified by purchaser N/A 260 N/A 32.63 N/A 28 N/A 1.13
N/A 30 N/A 37.00 N/A 2.63 N/A 33.75 N/A 5.25 N/A 32.13 N/A Specified by purchaser N/A 305 N/A 34.88 N/A 32 N/A 1.13
N/A 32 N/A 39.00 N/A 2.75 N/A 35.75 N/A 5.50 N/A 34.13 N/A Specified by purchaser N/A 340 N/A 36.88 N/A 36 N/A 1.13
N/A 34 N/A 41.00 N/A 2.88 N/A 37.75 N/A 5.75 N/A 36.13 N/A Specified by purchaser N/A 375 N/A 38.88 N/A 40 N/A 1.13
N/A 36 N/A 43.75 N/A 3.13 N/A 40.25 N/A 6.13 N/A 38.50 N/A Specified by purchaser N/A 480 N/A 41.50 N/A 40 N/A 1.25
N/A 38 N/A 45.75 N/A 3.13 N/A 42.25 N/A 6.13 N/A 40.50 N/A Specified by purchaser N/A 510 N/A 43.50 N/A 40 N/A 1.25
N/A 40 N/A 47.75 N/A 3.25 N/A 44.25 N/A 6.25 N/A 42.50 N/A Specified by purchaser N/A 540 N/A 45.50 N/A 44 N/A 1.25
N/A 42 N/A 50.00 N/A 3.50 N/A 46.50 N/A 6.50 N/A 44.75 N/A Specified by purchaser N/A 640 N/A 47.75 N/A 48 N/A 1.25
N/A 44 N/A 52.75 N/A 3.75 N/A 48.88 N/A 6.75 N/A 46.75 N/A Specified by purchaser N/A 760 N/A 50.25 N/A 44 N/A 1.38
N/A 46 N/A 54.75 N/A 4.25 N/A 50.88 N/A 7.25 N/A 48.75 N/A Specified by purchaser N/A 880 N/A 52.25 N/A 48 N/A 1.38
N/A 48 N/A 56.75 N/A 4.25 N/A 52.88 N/A 7.25 N/A 50.75 N/A Specified by purchaser N/A 920 N/A 54.25 N/A 48 N/A 1.38
N/A 52 N/A 61.50 N/A 4.25 N/A 57.25 N/A 7.50 N/A 55.00 N/A Specified by purchaser N/A 1075 N/A 58.75 N/A 52 N/A 1.50
N/A 54 N/A 63.50 N/A 4.50 N/A 59.25 N/A 7.75 N/A 57.00 N/A Specified by purchaser N/A 1200 N/A 60.75 N/A 52 N/A 1.50
N/A 60 N/A 69.50 N/A 4.50 N/A 65.25 N/A 8.00 N/A 63.00 N/A Specified by purchaser N/A 1325 N/A 66.75 N/A 60 N/A 1.50
N/A 66 N/A 77.00 N/A 4.00 N/A 72.38 N/A 8.50 N/A 70.00 N/A Specified by purchaser N/A 1675 N/A 74.00 N/A 60 N/A 1.63
N/A 72 N/A 83.00 N/A 4.00 N/A 78.38 N/A 9.00 N/A 76.00 N/A Specified by purchaser N/A 1850 N/A 80.00 N/A 72 N/A 1.63
N/A 84 N/A 96.50 N/A 5.00 N/A 91.25 N/A 10.00 N/A 89.00 N/A Specified by purchaser N/A 2950 N/A 93.25 N/A 80 N/A 1.75
N/A 96 N/A 109.25 N/A 6.25 N/A 103.88 N/A 11.25 N/A 101.25 N/A Specified by purchaser N/A 4250 N/A 105.75 N/A 84 N/A 1.88
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