SERIES B
Home > Products > Flanges > ASME Flange > SERIES B
ASME B16.47 Class 400 Series B Welding Neck Flanges
SPECIFICATIONS
▪ All dimensions are in inches
▪ 1/4" raised face will be added to the thickness and overall
length unless otherwise specified
length unless otherwise specified
▪ 38" thru 60" sizes are the same as Series "A"
▪ Flat face option available
▪ Extra heavy option available
Nominal Pipe Size |
Outside Diameter |
Minimum Thickness |
Raised Face Diameter |
Length Thru Hub |
Hub Diameter |
Minimum Fillet Radius |
Top of Hub |
Bore | Approximate Weight |
Bolt Circle |
Number of Holes |
Diameter of Holes |
(O) | (T) | (R) | (Y) | (X) | (r) | (A) | (B) | (lbs) | (C) | |||
26 | 33.50 | 3.50 | 28.00 | 5.88 | 27.12 | 0.44 | 26 | Specified by purchaser |
360 | 30.75 | 28 | 1.50 |
28 | 36.00 | 3.75 | 30.00 | 6.25 | 29.12 | 0.50 | 28 | Specified by purchaser |
450 | 33.00 | 24 | 1.62 |
30 | 38.25 | 4.00 | 32.25 | 6.69 | 31.25 | 0.50 | 30 | Specified by purchaser |
530 | 35.25 | 28 | 1.62 |
32 | 40.75 | 4.25 | 34.38 | 7.06 | 33.25 | 0.50 | 32 | Specified by purchaser |
635 | 37.50 | 28 | 1.75 |
34 | 42.75 | 4.38 | 36.50 | 7.38 | 35.38 | 0.56 | 34 | Specified by purchaser |
690 | 39.50 | 32 | 1.75 |
36 | 45.50 | 4.69 | 38.62 | 7.88 | 37.50 | 0.56 | 36 | Specified by purchaser |
855 | 42.00 | 28 | 1.88 |