EG-F-079
ASME B16.47 Class 900 Series A Weld Neck Flanges
Butt-weld connection with a tapered hub. Specify the bore to suit the connected pipe.
| Series | ASME B16.47 · Series A |
| Class | 900 |
| Size range | NPS 26–48 |
| Size entries | 12 |
Representative form. Refer to the size table for the selected dimensions.
Dimension key
Dimensions & drilling
in = inches · lb = pounds
Scroll the table horizontally to see all dimensions. Approximate weights are for reference.
| Catalogue ref. | Nominal pipe size (NPS) | OD (O) | Min. thickness (T) | RF diameter (R) | Length through hub (Y) | Hub OD (X) | Min. fillet radius (r) | Hub top OD (A) | Bore (B) | Approx. weight | Bolt circle (C) | Bolt holes | Hole diameter |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| EG-F-079-001 | 26 | 42.75 in | 5.50 in | 29.50 in | 11.25 in | 30.50 in | 0.44 in | 26.00 in | Specified by purchaser | 1525 lb | 37.50 in | 20 | 2.88 in |
| EG-F-079-002 | 28 | 46.00 in | 5.62 in | 31.50 in | 11.75 in | 32.75 in | 0.50 in | 28.00 in | Specified by purchaser | 1810 lb | 40.25 in | 20 | 3.12 in |
| EG-F-079-003 | 30 | 48.50 in | 5.88 in | 33.75 in | 12.25 in | 35.00 in | 0.50 in | 30.00 in | Specified by purchaser | 2120 lb | 42.75 in | 20 | 3.12 in |
| EG-F-079-004 | 32 | 51.75 in | 6.25 in | 36.00 in | 13.00 in | 37.25 in | 0.50 in | 32.00 in | Specified by purchaser | 2545 lb | 45.50 in | 20 | 3.38 in |
| EG-F-079-005 | 34 | 55.00 in | 6.50 in | 38.00 in | 13.75 in | 39.62 in | 0.56 in | 34.00 in | Specified by purchaser | 2970 lb | 48.25 in | 20 | 3.62 in |
| EG-F-079-006 | 36 | 57.50 in | 6.75 in | 40.25 in | 14.25 in | 41.88 in | 0.56 in | 36.00 in | Specified by purchaser | 3395 lb | 50.75 in | 20 | 3.62 in |
| EG-F-079-007 | 38 | 57.50 in | 7.50 in | 43.25 in | 13.88 in | 42.25 in | 0.75 in | 38.00 in | Specified by purchaser | 3385 lb | 50.75 in | 20 | 3.62 in |
| EG-F-079-008 | 40 | 59.50 in | 7.75 in | 45.75 in | 14.31 in | 44.38 in | 0.81 in | 40.00 in | Specified by purchaser | 3620 lb | 52.75 in | 24 | 3.62 in |
| EG-F-079-009 | 42 | 61.50 in | 8.12 in | 47.75 in | 14.62 in | 46.31 in | 0.81 in | 42.00 in | Specified by purchaser | 3960 lb | 54.75 in | 24 | 3.62 in |
| EG-F-079-010 | 44 | 64.88 in | 8.44 in | 50.00 in | 15.38 in | 48.62 in | 0.88 in | 44.00 in | Specified by purchaser | 4300 lb | 57.62 in | 24 | 3.88 in |
| EG-F-079-011 | 46 | 68.25 in | 8.88 in | 52.50 in | 16.18 in | 50.88 in | 0.88 in | 46.00 in | Specified by purchaser | 4640 lb | 60.50 in | 24 | 4.12 in |
| EG-F-079-012 | 48 | 70.25 in | 9.19 in | 54.50 in | 16.50 in | 52.88 in | 0.94 in | 48.00 in | Specified by purchaser | 4980 lb | 62.50 in | 24 | 4.12 in |
Selection notes
The listed base dimensions exclude the 1/4 in raised face; include it when checking the finished thickness.
A flat face (FF) can be specified with the inquiry.
Class designations are not direct pressure values. Confirm material grade, temperature, facing and the applicable standard edition before ordering.
Specify your flange.
Send the standard, class, size, material and quantity. Add a drawing for custom requirements.