Coastal Flange - ASME B16.47 Class 400 Series B Welding Neck Flanges - Compare Items

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

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Items	26400WNSB ASME B16.47 Class 400 Series B Welding Neck Flanges	28400WNSB ASME B16.47 Class 400 Series B Welding Neck Flanges	30400WNSB ASME B16.47 Class 400 Series B Welding Neck Flanges	32400WNSB ASME B16.47 Class 400 Series B Welding Neck Flanges	34400WNSB ASME B16.47 Class 400 Series B Welding Neck Flanges
Flange Type	N/A Welding Neck
Nominal Pipe Size	N/A 26	N/A 28	N/A 30	N/A 32	N/A 34
Outside Diameter (O)	N/A 33.50 in	N/A 36.00 in	N/A 38.25 in	N/A 40.75 in	N/A 42.75 in
Minimum Thickness (T)	N/A 3.50 in	N/A 3.75 in	N/A 4.00 in	N/A 4.25 in	N/A 4.38 in
Raised Face Diameter (R)	N/A 28.00 in	N/A 30.00 in	N/A 32.25 in	N/A 34.38 in	N/A 36.50 in
Length Thru Hub (Y)	N/A 5.88 in	N/A 6.25 in	N/A 6.69 in	N/A 7.06 in	N/A 7.38 in
Hub Diameter (X)	N/A 27.12 in	N/A 29.12 in	N/A 31.25 in	N/A 33.25 in	N/A 35.38 in
Minimum Fillet Radius (r)	N/A 0.44 in	N/A 0.50 in	N/A 0.50 in	N/A 0.50 in	N/A 0.56 in
Top of Hub (A)	N/A 26.00 in	N/A 28.00 in	N/A 30.00 in	N/A 32.00 in	N/A 34.00 in
Bore (B)	N/A Specified by purchaser
Approximate Weight	N/A 360 lb	N/A 450 lb	N/A 530 lb	N/A 635 lb	N/A 690 lb
Bolt Circle (C)	N/A 30.75 in	N/A 33.00 in	N/A 35.25 in	N/A 37.50 in	N/A 39.50 in
Number of Holes	N/A 28	N/A 24	N/A 28	N/A 28	N/A 32
Diameter of Holes	N/A 1.50 in	N/A 1.62 in	N/A 1.62 in	N/A 1.75 in	N/A 1.75 in