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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
Items Table 7 AWWA Blind Flanges
04BLIBAWW
Table 7 AWWA C207-18 Class B Blind Flanges
Table 7 AWWA Blind Flanges
05BLIBAWW
Table 7 AWWA C207-18 Class B Blind Flanges
Table 7 AWWA Blind Flanges
06BLIBAWW
Table 7 AWWA C207-18 Class B Blind Flanges
Table 7 AWWA Blind Flanges
08BLIBAWW
Table 7 AWWA C207-18 Class B Blind Flanges
Table 7 AWWA Blind Flanges
10BLIBAWW
Table 7 AWWA C207-18 Class B Blind Flanges
Flange Type N/A Blind
Nominal Pipe Size N/A 4 N/A 5 N/A 6 N/A 8 N/A 10
Working Pressure N/A 86 psi
Outside Diameter (A) N/A 9.00 in N/A 10.00 in N/A 11.00 in N/A 13.50 in N/A 16.00 in
Minimum Thickness (T) N/A 0.63 in N/A 0.63 in N/A 0.69 in N/A 0.69 in N/A 0.69 in
Approximate Weight N/A 5 lb N/A 7 lb N/A 8 lb N/A 11 lb N/A 52 lb
Number of Bolt Holes N/A 8 N/A 8 N/A 8 N/A 8 N/A 12
Diameter of Bolt Holes N/A 0.75 in N/A 0.88 in N/A 0.88 in N/A 0.88 in N/A 1.00 in
Diameter of Bolt Circle (C) N/A 7.50 in N/A 8.50 in N/A 9.50 in N/A 11.75 in N/A 14.25 in