ASME B16.47 Class 75 Series B Blind Flanges

    • All dimensions are in inches
    • These flanges will be furnished with a 1/16″ raised face unless otherwise specified.
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(Size Chart)

Nominal Pipe Size Outside Diameter (O) Bolt Circle (W) Raised Face Diameter (R) Number of Holes Diameter of Holes Minimum Thickness (T) Approximate Weight (lbs)
26 30.00 28.50 27.75 36 0.75 1.31 255
28 32.00 30.50 29.75 40 0.75 1.31 290
30 34.00 32.50 31.75 44 0.75 1.31 330
32 36.00 34.50 33.75 48 0.75 1.44 390
34 38.00 36.50 35.75 52 0.75 1.50 430
36 40.69 39.06 38.00 40 0.88 1.67 520
38 42.69 41.06 40.00 40 0.88 1.75 595
40 44.69 43.06 42.00 44 0.88 1.75 760
42 46.69 45.06 44.00 48 0.88 1.88 895
44 49.25 47.38 46.25 36 1.00 1.94 1065
46 51.25 49.38 48.25 40 1.00 2.00 1185
48 53.25 51.38 50.25 44 1.00 2.12 1315
50 55.25 53.38 52.25 44 1.00 2.18 1505
52 57.38 55.50 54.25 48 1.00 2.25 1665
54 59.38 57.50 56.25 48 1.00 2.38 1840
56 62.00 59.88 58.50 40 1.12 2.44 2111
58 64.00 61.88 60.50 44 1.12 2.50 2300
60 66.00 63.88 62.50 44 1.12 2.62 2500
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