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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

26350BDIS N/A 26 N/A 32.75 in N/A 2.75 in N/A 29.50 in N/A 580 lb N/A 30.63 in N/A 28 N/A 1.13 in
28350BDIS N/A 28 N/A 34.75 in N/A 2.88 in N/A 31.50 in N/A 750 lb N/A 32.63 in N/A 28 N/A 1.13 in
30350BDIS N/A 30 N/A 37.00 in N/A 3.00 in N/A 33.75 in N/A 890 lb N/A 34.88 in N/A 32 N/A 1.13 in
32350BDIS N/A 32 N/A 39.00 in N/A 3.25 in N/A 35.75 in N/A 1050 lb N/A 36.88 in N/A 36 N/A 1.13 in
34350BDIS N/A 34 N/A 41.00 in N/A 3.38 in N/A 37.75 in N/A 1225 lb N/A 38.88 in N/A 40 N/A 1.13 in
36350BDIS N/A 36 N/A 43.75 in N/A 3.63 in N/A 40.25 in N/A 1500 lb N/A 41.50 in N/A 40 N/A 1.25 in
38350BDIS N/A 38 N/A 45.75 in N/A 3.75 in N/A 42.25 in N/A 1700 lb N/A 43.50 in N/A 40 N/A 1.25 in
40350BDIS N/A 40 N/A 47.75 in N/A 4.00 in N/A 44.25 in N/A 1975 lb N/A 45.50 in N/A 44 N/A 1.25 in
42350BDIS N/A 42 N/A 50.00 in N/A 4.13 in N/A 46.50 in N/A 2225 lb N/A 47.75 in N/A 48 N/A 1.25 in
44350BDIS N/A 44 N/A 52.75 in N/A 4.38 in N/A 48.88 in N/A 2625 lb N/A 50.25 in N/A 44 N/A 1.38 in
46350BDIS N/A 46 N/A 54.75 in N/A 4.75 in N/A 50.88 in N/A 2950 lb N/A 52.25 in N/A 48 N/A 1.38 in
48350BDIS N/A 48 N/A 56.75 in N/A 4.75 in N/A 52.88 in N/A 3300 lb N/A 54.25 in N/A 48 N/A 1.38 in
Unit of Measure
1