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  • All dimensions are in inches.
  • These flanges will be furnished with a 1/16" raised face unless otherwise specified.
  • Flat face option available.

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Industry Standard Blind Flange
Unit of Measure
1 

Item #

Nominal Pipe Size

Outside Diameter (O)

Thickness (T)

Raised Face Diameter (R)

Approximate Weight

Bolt Circle (C)

Number of Holes

Diameter of Bolt Holes

26250BDIS N/A 26 N/A 38.25 in N/A 2.81 in N/A 32.44 in N/A 853 lb N/A 34.50 in N/A 28 N/A 1.88 in
28250BDIS N/A 28 N/A 40.75 in N/A 2.94 in N/A 34.94 in N/A 1022 lb N/A 37.00 in N/A 28 N/A 1.88 in
30250BDIS N/A 30 N/A 43.00 in N/A 3.00 in N/A 37.19 in N/A 1168 lb N/A 39.25 in N/A 28 N/A 1.88 in
32250BDIS N/A 32 N/A 45.25 in N/A 3.12 in N/A 39.44 in N/A 1353 lb N/A 41.50 in N/A 28 N/A 1.88 in
34250BDIS N/A 34 N/A 47.50 in N/A 3.25 in N/A 41.44 in N/A 1560 lb N/A 43.50 in N/A 28 N/A 1.88 in
36250BDIS N/A 36 N/A 50.00 in N/A 3.38 in N/A 43.69 in N/A 1792 lb N/A 46.00 in N/A 32 N/A 2.13 in
38250BDIS N/A 38 N/A 52.25 in N/A 3.44 in N/A 45.69 in N/A 2003 lb N/A 48.00 in N/A 32 N/A 2.13 in
40250BDIS N/A 40 N/A 54.50 in N/A 3.56 in N/A 47.94 in N/A 2223 lb N/A 50.25 in N/A 36 N/A 2.13 in
42250BDIS N/A 42 N/A 57.00 in N/A 3.69 in N/A 50.44 in N/A 2533 lb N/A 52.75 in N/A 36 N/A 2.13 in
44250BDIS N/A 44 N/A 59.25 in N/A 3.75 in N/A 52.69 in N/A 2793 lb N/A 55.00 in N/A 36 N/A 2.13 in
46250BDIS N/A 46 N/A 61.50 in N/A 3.88 in N/A 54.94 in N/A 3109 lb N/A 57.25 in N/A 40 N/A 2.13 in
48250BDIS N/A 48 N/A 65.00 in N/A 4.00 in N/A 58.44 in N/A 3599 lb N/A 60.75 in N/A 40 N/A 2.13 in
Unit of Measure
1