ASME B16.47 Class 300 Series B Blind Flanges

ProductsNominal Pipe SizeOutside Diameter (O)Minimum Thickness (T)Raised Face Diameter (R)Approximate Weight (lbs)Bolt Circle (C)Number of HolesDiameter of Holes
26300BDSB26 34.12 3.50 29.00 905 31.62 32 1.38
28300BDSB28 36.25 3.50 31.00 1023 33.75 36 1.38
30300BDSB30 39.00 3.69 33.25 1250 36.25 36 1.50
32300BDSB3241.50 4.06 35.501556 38.50 32 1.62
34300BDSB3443.624.06 37.501719 40.62 36 1.62
36300BDSB3646.124.06 39.75 1920 42.88 32 1.75
38300BDSB3848.12 4.38 41.75 2257 44.88 36 1.75
40300BDSB4050.12 4.56 43.88 255046.88 40 1.75
42300BDSB4252.504.69 46.00 2875 49.00 36 1.88
44300BDSB4454.50 5.00 48.00 3305 51.00 401.88
46300BDSB4657.50 5.12 50.00376653.75 36 2.00
48300BDSB48 59.50 5.31 52.25 4183 55.75 40 2.00
50300BDSB50 61.50 5.50 54.25 4629 57.75 44 2.00
52300BDSB52 63.50 5.68 56.255096 59.75 48 2.00
54300BDSB54 65.88 5.88 58.25 5679 62.12 48 2.00
56300BDSB5669.50 6.18 60.50 6642 65.0036 2.38
58300BDSB5871.94 6.38 62.75 7347 67.44 40 2.38
60300BDSB6073.94 6.56 65.00 7980 69.4440 2.38