ASTM CLASS 2500 WELDING NECK FLANGES

Item #Nominal 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
0H2500WNAN 1/2 5.25 1.19 1.38 2.88 0.84 1.69 Specified by purchaser 7 3.50 4 0.88
3Q2500WNAN 3/4 5.50 1.25 1.69 3.13 1.05 2.00 Specified by purchaser 8 3.75 4 0.88
012500WNAN 1 6.25 1.38 2.00 3.50 1.32 2.25 Specified by purchaser 12 4.25 4 1.00
1Q2500WNAN 1 1/4 7.25 1.50 2.50 3.75 1.66 2.88 Specified by purchaser 17 5.13 4 1.13
1H2500WNAN 1 1/2 8.00 1.75 2.88 4.38 1.90 3.13 Specified by purchaser 25 5.75 4 1.25
022500WNAN 2 9.25 2.00 3.63 5.00 2.38 3.75 Specified by purchaser 42 6.75 8 1.13
2H2500WNAN 2 1/2 10.50 2.25 4.13 5.63 2.88 4.50 Specified by purchaser 52 7.75 8 1.25
032500WNAN 3 12.00 2.63 5.00 6.63 3.50 5.25 Specified by purchaser 94 9.00 8 1.38
042500WNAN 4 14.00 3.00 6.19 7.50 4.50 6.50 Specified by purchaser 145 10.75 8 1.63
052500WNAN 5 16.50 3.63 7.31 9.00 5.56 8.00 Specified by purchaser 245 12.75 8 1.88
062500WNAN 6 19.00 4.25 8.50 10.75 6.63 9.25 Specified by purchaser 380 14.50 8 2.13
082500WNAN 8 21.75 5.00 10.63 12.50 8.63 12.00 Specified by purchaser 580 17.25 12 2.13
102500WNAN 10 26.50 6.50 12.75 16.50 10.75 14.75 Specified by purchaser 1075 21.25 12 2.63
122500WNAN 12 30.00 7.25 15.00 18.25 12.75 17.38 Specified by purchaser 1525 24.38 12 2.88