• ANSI B16.5 Class 400 Blind flange
  • All dimensions are in inches.
  • These flanges will be furnished with a 1/4" 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)

Approximate Weight (lbs)

Bolt Circle (C)

Number of Holes

Diameter of Holes

N/A 1/2 N/A 4.75 N/A 0.88 N/A 1.38 N/A 4 N/A 3.25 N/A 4 N/A 0.88
N/A 3/4 N/A 5.13 N/A 1.00 N/A 1.69 N/A 6 N/A 3.50 N/A 4 N/A 0.88
N/A 1 N/A 5.88 N/A 1.13 N/A 2.00 N/A 8 N/A 4.00 N/A 4 N/A 1.00
N/A 1 1/4 N/A 6.25 N/A 1.13 N/A 2.50 N/A 9 N/A 4.38 N/A 4 N/A 1.00
N/A 1 1/2 N/A 7.00 N/A 1.25 N/A 2.88 N/A 13 N/A 4.88 N/A 4 N/A 1.13
N/A 2 N/A 8.50 N/A 1.50 N/A 3.63 N/A 25 N/A 6.50 N/A 8 N/A 1.00
N/A 2 1/2 N/A 9.63 N/A 1.63 N/A 4.13 N/A 35 N/A 7.50 N/A 8 N/A 1.13
N/A 3 N/A 10.50 N/A 1.88 N/A 5.00 N/A 48 N/A 8.00 N/A 8 N/A 1.25
N/A 4 N/A 12.25 N/A 2.13 N/A 6.19 N/A 73 N/A 9.50 N/A 8 N/A 1.38
N/A 5 N/A 14.75 N/A 2.88 N/A 7.31 N/A 140 N/A 11.50 N/A 8 N/A 1.63
N/A 6 N/A 15.50 N/A 3.25 N/A 8.50 N/A 160 N/A 12.50 N/A 12 N/A 1.50
N/A 8 N/A 19.00 N/A 3.63 N/A 10.63 N/A 300 N/A 15.50 N/A 12 N/A 1.75
N/A 10 N/A 23.00 N/A 4.25 N/A 12.75 N/A 510 N/A 19.00 N/A 12 N/A 2.00
N/A 12 N/A 26.50 N/A 4.88 N/A 15.00 N/A 690 N/A 22.50 N/A 16 N/A 2.13
N/A 14 N/A 29.50 N/A 5.25 N/A 16.25 N/A 975 N/A 25.00 N/A 16 N/A 2.38
N/A 16 N/A 32.50 N/A 5.75 N/A 18.50 N/A 1300 N/A 27.75 N/A 16 N/A 2.63
N/A 18 N/A 36.00 N/A 6.38 N/A 21.00 N/A 1750 N/A 30.50 N/A 16 N/A 2.88
N/A 20 N/A 38.75 N/A 7.00 N/A 23.00 N/A 2225 N/A 32.75 N/A 16 N/A 3.13
N/A 24 N/A 46.00 N/A 8.00 N/A 27.25 N/A 3625 N/A 39.00 N/A 16 N/A 3.63
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