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  • All dimensions are in inches.
  • 1/4" raised face will be added to the thickness unless otherwise specified.
  • 38" thru 60" sizes are the same as Series "A".
  • Flat face option available.

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ASME B16.47 SERIES A RF BLIND
Unit of Measure
Items ASME B16.47 SERIES A RF BLIND
26600BDSB
ASME B16.47 Class 600 Series B Blind Flanges
ASME B16.47 SERIES A RF BLIND
28600BDSB
ASME B16.47 Class 600 Series B Blind Flanges
ASME B16.47 SERIES A RF BLIND
30600BDSB
ASME B16.47 Class 600 Series B Blind Flanges
ASME B16.47 SERIES A RF BLIND
32600BDSB
ASME B16.47 Class 600 Series B Blind Flanges
ASME B16.47 SERIES A RF BLIND
34600BDSB
ASME B16.47 Class 600 Series B Blind Flanges
Flange Type N/A Blind
Nominal Pipe Size N/A 26 N/A 28 N/A 30 N/A 32 N/A 34
Outside Diameter (O) N/A 35.00 in N/A 37.50 in N/A 40.25 in N/A 42.75 in N/A 45.75 in
Minimum Thickness (T) N/A 4.38 in N/A 4.56 in N/A 5.00 in N/A 5.31 in N/A 5.68 in
Raised Face Diameter (R) N/A 28.62 in N/A 30.88 in N/A 33.12 in N/A 35.25 in N/A 37.50 in
Approximate Weight N/A 1195 lb N/A 1427 lb N/A 1800 lb N/A 2160 lb N/A 2645 lb
Bolt Circle (C) N/A 31.75 in N/A 34.00 in N/A 36.50 in N/A 38.75 in N/A 41.50 in
Number of Holes N/A 28 N/A 28 N/A 28 N/A 28 N/A 24
Diameter of Holes N/A 1.75 in N/A 1.88 in N/A 2.00 in N/A 2.12 in N/A 2.38 in