Industry Standard Class 75 Welding Neck Flanges

ProductsNominal Pipe SizeOutside Diameter (O)Thickness (T)Raised Face Diameter (R)Length Thru Hub (Y)Base of Hub Diameter (X)Diameter of Hub at Bevel Diameter of Hub at Bevel (A) Bore (B)Approximate Weight (lbs)Bolt Circle (C)Number of HolesDiameter of Holes
26075WNIS26 31.50 1.2528.63 3.00 27.13 26 26Specified by purchaser 9829.63 32 1.00
28075WNIS28 33.50 1.25 30.63 3.00 29.1328 28Specified by purchaser 105 31.6336 1.00
30075WNIS 30 35.50 1.25 32.63 3.00 31.13 3030 Specified by purchaser11033.6336 1.00
32075WNIS32 38.25 1.25 35.00 3.25 33.38 32 32 Specified by purchaser 140 36.13 36 1.13
34075WNIS34 40.25 1.25 37.00 3.25 35.38 34 34 Specified by purchaser 150 38.13 40 1.13
36075WNIS3642.25 1.25 39.00 3.25 37.38 36 36 Specified by purchaser 160 40.13 40 1.13
42075WNIS42 49.00 1.25 45.50 3.50 43.75 42 42 Specified by purchaser 210 46.7548 1.25
48075WNIS48 55.00 1.25 51.50 3.75 49.7548 48 Specified by purchaser 240 52.75 52 1.25
54075WNIS54 61.25 1.38 57.75 4.00 56.00 54 54 Specified by purchaser 310 59.00 64 1.25
60075WNIS60 67.25 1.63 63.75 4.38 62.00 60 60 Specified by purchaser 400 65.00 721.25
66075WNIS66 74.00 1.88 70.13 4.88 68.0066 66 Specified by purchaser 560 71.50 721.38
72075WNIS72 80.00 2.25 76.13 5.25 74.00 72 72 Specified by purchaser 700 77.50 801.38