ASME B16.47 Class 75 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
2675BDSB26 30.001.31 27.75 25528.5036 0.75
2875BDSB28 32.001.31 29.75 29030.50 40 0.75
3075BDSB3034.001.31 31.7533032.50 44 0.75
3275BDSB3236.001.44 33.75 39034.50 48 0.75
3475BDSB3438.00 1.50 35.75 430 36.50 52 0.75
3675BDSB3640.69 1.67 38.00 520 39.06 40 0.88
3875BDSB 3842.69 1.75 40.00 595 41.06 40 0.88
4075BDSB4044.69 1.75 42.00 76043.06 44 0.88
4275BDSB4246.69 1.8844.00 895 45.06 48 0.88
4475BDSB4449.25 1.94 46.25 1065 47.38 36 1.00
4675BDSB46 51.25 2.00 48.25 1185 49.38 40 1.00
4875BDSB4853.25 2.12 50.251315 51.38 44 1.00
5075BDSB5055.25 2.18 52.25 1505 53.3844 1.00
5275BDSB5257.38 2.25 54.251665 55.50 48 1.00
5475BDSB5459.38 2.38 56.25 1840 57.50 48 1.00
5675BDSB5662.00 2.44 58.50 2111 59.8840 1.12
5875BDSB5864.00 2.50 60.50 2300 61.8844 1.12
6075BDS6066.00 2.62 62.50 250063.88 44 1.12