ANSI B16.5 Class 300 Welding Neck Flanges

ANSI B16.5 Class 300 Welding Neck Flanges

ProductsNominal Pipe SizeOutside Diameter (O)Thickness (T)Raised Face Diameter (R)Length Thru Hub (Y)Point of Weld (A)Hub Diameter (X)Bore (B)Approximate Weight (lbs)Bolt Circle (C)Number of HolesDiameter of Holes
0H300WNAN1/2 3.75 0.56 1.38 2.06 0.84 1.50 0.62 2 2.63 4 0.63
3Q300WNAN3/4 4.63 0.63 1.69 2.25 1.05 1.88 0.82 3 3.254 0.75
01300WNAN1 4.88 0.69 2.00 2.44 1.32 2.13 1.05 4 3.504 0.75
1Q300WNAN1 1/4 5.25 0.75 2.50 2.56 1.66 2.50 1.38 5 3.88 4 0.75
1H300WNAN1 1/2 6.13 0.81 2.88 2.691.90 2.75 1.61 7 4.50 40.88
02300WNAN26.50 0.883.63 2.75 2.383.31 2.07 9 5.00 8 0.75
2H300WNAN2 1/2 7.50 1.00 4.13 3.00 2.88 3.94 2.47 12 5.888 0.88
03300WNAN3 8.25 1.135.00 3.13 3.50 4.63 3.07 15 6.63 8 0.88
3H300WNAN3 1/2 9.00 1.19 5.50 3.19 4.00 5.253.55 18 7.25 8 0.88
04300WNAN4 10.00 1.256.19 3.38 4.505.75 4.03 25 7.88 8 0.88
05300WNAN5 11.001.38 7.313.88 5.56 7.00 5.05 32 9.25 8 0.88
06300WNAN6 12.50 1.44 8.50 3.88 6.63 8.13 6.0742 10.6312 0.88
08300WNAN8 15.00 1.44 10.63 4.38 8.63 10.25 7.98 67 13.00 12 1.00
10300WNAN10 17.50 1.88 12.754.63 10.75 12.63 10.02 91 15.25 16 1.13
12300WNAN12 20.50 2.00 15.00 5.13 12.75 14.7512.00 140 17.75 16 1.25
14300WNAN14 23.00 2.1316.25 5.63 14.0016.75 13.25 180 20.25 20 1.25
16300WNAN16 25.50 2.25 18.50 5.75 16.00 19.00 15.25 250 22.50 20 1.38
18300WNAN18 28.00 2.38 21.00 6.25 18.00 21.00 17.25 320 24.75 24 1.38
20300WNAN20 30.50 2.50 23.00 6.38 20.00 23.1319.25 400 27.00 24 1.38
22300WNAN22 33.002.6325.25 6.50 22.00 25.25 21.25 465 29.25 24 1.63
24300WNAN24 36.00 2.75 27.25 6.63 24.00 27.6323.25 580 32.00 24 1.63