ANSI B16.47 Series A Class 150 Flanges
Class A 150 & 300 WeldNeck Flange Class A 150 & 300 Blind Flange
Series A 150 Weld Neck Flange
Series A 150 Blind Flange

 

B16.47 Series A Class 150 Weld Neck & Blind
Weld Neck                                  Blind
Nom Size   Thickness   Drilling Weight
OD Weld Neck Blind OD of RF Dia at Base Bore LTH Dia Bevel Bolt Circle Bolt Length HoleDia #  of Holes Weld Neck Blind
O C C R X B Y A   (1) (2)      
26 34.25 2.63 2.63 29.50 26.62 Texas Flange Flanges 4.69 26.00 31.75 8.75 1.38 24 300 702
28 36.50 2.75 2.75 31.50 28.62 4.88 28.00 34.00 9.00 1.38 28 345 833
30 38.75 2.88 2.88 33.75 30.75 5.32 30.00 36.00 9.25 1.38 28 400 982
32 41.75 3.13 3.13 36.00 32.75 5.63 32.00 38.50 10.50 1.62 28 505 1237
34 43.75 3.19 3.19 38.00 34.75 5.82 34.00 40.50 10.50 1.62 32 540 1384
36 46.00 3.50 3.50 40.25 36.75 6.13 36.00 42.75 11.00 1.62 32 640 1676
38 48.75 3.38 3.38 42.25 39.00 6.13 38.00 45.25 11.00 1.62 32 720 1819
40 50.75 3.50 3.50 44.25 41.00 6.38 40.00 47.25 11.00 1.62 36 775 2040
42 53.00 3.75 3.75 47.00 43.00 6.69 42.00 49.50 11.50 1.62 36 890 2381
44 55.25 3.94 3.94 49.00 45.00 6.94 44.00 51.75 12.00 1.62 40 990 2717
46 57.25 4.00 4.00 51.00 47.12 7.25 46.00 53.75 12.00 1.62 40 1060 2961
48 59.50 4.19 4.19 53.50 49.12 7.50 48.00 56.00 12.50 1.62 44 1185 3348
50 61.75 4.32 4.32 55.50 51.25 7.94 50.00 58.25 13.25 1.88 44 1270 3716
52 64.00 4.50 4.50 57.50 53.25 8.19 52.00 60.50 13.75 1.88 44 1410 4156
54 66.25 4.69 4.69 59.50 55.25 8.44 54.00 62.75 14.00 1.88 44 1585 4639
56 68.75 4.82 4.82 62.00 57.38 8.94 56.00 65.00 14.25 1.88 48 1760 5132
58 71.00 5.00 5.00 64.00 59.38 9.19 58.00 67.25 14.75 1.88 48 1915 5675
60 73.00 5.13 5.13 66.00 61.38 9.38 60.00 69.25 15.00 1.88 52 2045 6154
Dimensions are in inches.  Weights are in pounds.
(1)Bolt lengths are calculated based on bolting one WN to one Blind.
(2) Bolt diameter should be 1/8" less than the bolt hole diameter.
Note:
Larger sizes as well as intermediate sizes can be furnished.

ANSI B16.47 Series A Class 150 Flange PDF (for printing).