Coastal Flange
Coastal Flange
11906 FM 529
Jersey Village, TX 77041
Phone: 800.643.9063
Fax: 713.937.3471
Email: sales@coastalflange.com
Website: www.coastalflange.com
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  • All dimensions are in inches.
  • Blind flanges shall be machined with center island to match the mating flange.

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Table 7 AWWA Blind Flanges
Unit of Measure
1 2 

Item #

Nominal Pipe Size

Working Pressure

Outside Diameter (A)

Minimum Thickness (T)

Approximate Weight

Number of Bolt Holes

Diameter of Bolt Holes

Diameter of Bolt Circle (C)

04BLIEAWW N/A 4 N/A 275 psi N/A 9.00 in N/A 1.13 in N/A 23 lb N/A 8 N/A 0.75 in N/A 7.50 in
05BLIEAWW N/A 5 N/A 275 psi N/A 10.00 in N/A 1.19 in N/A 29 lb N/A 8 N/A 0.88 in N/A 8.50 in
06BLIEAWW N/A 6 N/A 275 psi N/A 11.00 in N/A 1.31 in N/A 39 lb N/A 8 N/A 0.88 in N/A 9.50 in
08BLIEAWW N/A 8 N/A 275 psi N/A 13.50 in N/A 1.50 in N/A 66 lb N/A 8 N/A 0.88 in N/A 11.75 in
10BLIEAWW N/A 10 N/A 275 psi N/A 16.00 in N/A 1.56 in N/A 96 lb N/A 12 N/A 1.00 in N/A 14.25 in
12BLIEAWW N/A 12 N/A 275 psi N/A 19.00 in N/A 1.75 in N/A 151 lb N/A 12 N/A 1.00 in N/A 17.00 in
14BLIEAWW N/A 14 N/A 275 psi N/A 21.00 in N/A 1.88 in N/A 196 lb N/A 12 N/A 1.13 in N/A 18.75 in
16BLIEAWW N/A 16 N/A 275 psi N/A 23.50 in N/A 2.00 in N/A 261 lb N/A 16 N/A 1.13 in N/A 21.25 in
18BLIEAWW N/A 18 N/A 275 psi N/A 25.00 in N/A 2.13 in N/A 313 lb N/A 16 N/A 1.25 in N/A 22.75 in
20BLIEAWW N/A 20 N/A 275 psi N/A 27.50 in N/A 2.38 in N/A 431 lb N/A 20 N/A 1.25 in N/A 25.00 in
22BLIEAWW N/A 22 N/A 275 psi N/A 29.50 in N/A 2.50 in N/A 520 lb N/A 20 N/A 1.38 in N/A 27.25 in
24BLIEAWW N/A 24 N/A 275 psi N/A 32.00 in N/A 2.63 in N/A 641 lb N/A 20 N/A 1.38 in N/A 29.50 in
26BLIEAWW N/A 26 N/A 275 psi N/A 34.25 in N/A 2.75 in N/A 767 lb N/A 24 N/A 1.38 in N/A 31.75 in
28BLIEAWW N/A 28 N/A 275 psi N/A 36.50 in N/A 2.75 in N/A 871 lb N/A 28 N/A 1.38 in N/A 34.00 in
30BLIEAWW N/A 30 N/A 275 psi N/A 38.75 in N/A 2.88 in N/A 1023 lb N/A 28 N/A 1.38 in N/A 36.00 in
32BLIEAWW N/A 32 N/A 275 psi N/A 41.75 in N/A 3.00 in N/A 1236 lb N/A 28 N/A 1.63 in N/A 38.50 in
34BLIEAWW N/A 34 N/A 275 psi N/A 43.75 in N/A 3.05 in N/A 1379 lb N/A 32 N/A 1.63 in N/A 40.50 in
36BLIEAWW N/A 36 N/A 275 psi N/A 46.00 in N/A 3.21 in N/A 1599 lb N/A 32 N/A 1.63 in N/A 42.75 in
38BLIEAWW N/A 38 N/A 275 psi N/A 48.75 in N/A 3.39 in N/A 1894 lb N/A 32 N/A 1.63 in N/A 45.25 in
40BLIEAWW N/A 40 N/A 275 psi N/A 50.75 in N/A 3.53 in N/A 2132 lb N/A 36 N/A 1.63 in N/A 47.25 in
42BLIEAWW N/A 42 N/A 275 psi N/A 53.00 in N/A 3.70 in N/A 2427 lb N/A 36 N/A 1.63 in N/A 49.50 in
44BLIEAWW N/A 44 N/A 275 psi N/A 55.25 in N/A 3.86 in N/A 2747 lb N/A 40 N/A 1.63 in N/A 51.75 in
46BLIEAWW N/A 46 N/A 275 psi N/A 57.25 in N/A 4.00 in N/A 3052 lb N/A 40 N/A 1.63 in N/A 53.75 in
48BLIEAWW N/A 48 N/A 275 psi N/A 59.50 in N/A 4.16 in N/A 3424 lb N/A 44 N/A 1.63 in N/A 56.00 in
50BLIEAWW N/A 50 N/A 275 psi N/A 61.75 in N/A 4.33 in N/A 3830 lb N/A 44 N/A 1.88 in N/A 58.25 in
Unit of Measure
1 2