EG-F-024
ASME B16.5 (ANSI) Class 400 Lap Joint Flanges
Backing flange used with a matching stub end. The bore radius and stub-end geometry must be coordinated.
| Series | ASME B16.5 (ANSI) |
| Class | 400 |
| Size range | NPS 1/2–24 |
| Size entries | 21 |
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) | Thickness (T) | Length through hub (Y) | Hub OD (X) | Radius (r) | Bore (B) | Approx. weight | Bolt circle (C) | Bolt holes | Hole diameter |
|---|---|---|---|---|---|---|---|---|---|---|---|
| EG-F-024-001 | 1/2 | 3.75 in | 0.56 in | 1.38 in | 1.19 in | 0.13 in | 0.90 in | 2 lb | 2.63 in | 4 | 0.63 in |
| EG-F-024-002 | 3/4 | 4.63 in | 0.63 in | 1.69 in | 1.50 in | 0.13 in | 1.11 in | 3 lb | 3.25 in | 4 | 0.75 in |
| EG-F-024-003 | 1 | 4.88 in | 0.69 in | 2.00 in | 1.94 in | 0.13 in | 1.38 in | 4 lb | 3.50 in | 4 | 0.75 in |
| EG-F-024-004 | 1 1/4 | 5.25 in | 0.81 in | 2.50 in | 2.31 in | 0.19 in | 1.72 in | 5 lb | 3.88 in | 4 | 0.75 in |
| EG-F-024-005 | 1 1/2 | 6.13 in | 0.88 in | 2.88 in | 2.56 in | 0.25 in | 1.97 in | 7 lb | 4.50 in | 4 | 0.88 in |
| EG-F-024-006 | 2 | 6.50 in | 1.00 in | 3.63 in | 3.06 in | 0.31 in | 2.46 in | 9 lb | 5.00 in | 8 | 0.75 in |
| EG-F-024-007 | 2 1/2 | 7.50 in | 1.13 in | 4.13 in | 3.56 in | 0.31 in | 2.97 in | 12 lb | 5.88 in | 8 | 0.88 in |
| EG-F-024-008 | 3 | 8.25 in | 1.25 in | 5.00 in | 4.25 in | 0.38 in | 3.60 in | 15 lb | 6.63 in | 8 | 0.88 in |
| EG-F-024-009 | 3 1/2 | 9.00 in | 1.38 in | 5.50 in | 4.81 in | 0.38 in | 4.10 in | 20 lb | 7.25 in | 8 | 1.00 in |
| EG-F-024-010 | 4 | 10.00 in | 1.38 in | 2.00 in | 5.75 in | 0.44 in | 4.60 in | 25 lb | 7.88 in | 8 | 1.00 in |
| EG-F-024-011 | 5 | 11.00 in | 1.50 in | 2.13 in | 7.00 in | 0.44 in | 5.69 in | 29 lb | 9.25 in | 8 | 1.00 in |
| EG-F-024-012 | 6 | 12.50 in | 1.63 in | 2.25 in | 8.13 in | 0.50 in | 6.75 in | 42 lb | 10.63 in | 12 | 1.00 in |
| EG-F-024-013 | 8 | 15.00 in | 1.88 in | 2.69 in | 10.25 in | 0.50 in | 8.75 in | 64 lb | 13.00 in | 12 | 1.13 in |
| EG-F-024-014 | 10 | 17.50 in | 2.13 in | 4.00 in | 12.63 in | 0.50 in | 10.92 in | 110 lb | 15.25 in | 16 | 1.25 in |
| EG-F-024-015 | 12 | 20.50 in | 2.25 in | 4.25 in | 14.75 in | 0.50 in | 12.92 in | 150 lb | 17.75 in | 16 | 1.38 in |
| EG-F-024-016 | 14 | 23.00 in | 2.38 in | 4.63 in | 16.75 in | 0.50 in | 14.18 in | 205 lb | 20.25 in | 20 | 1.38 in |
| EG-F-024-017 | 16 | 25.50 in | 2.50 in | 5.00 in | 19.00 in | 0.50 in | 16.19 in | 260 lb | 22.50 in | 20 | 1.50 in |
| EG-F-024-018 | 18 | 28.00 in | 2.63 in | 5.38 in | 21.00 in | 0.50 in | 18.20 in | 315 lb | 24.75 in | 24 | 1.50 in |
| EG-F-024-019 | 20 | 30.50 in | 2.75 in | 5.75 in | 23.13 in | 0.50 in | 20.25 in | 385 lb | 27.00 in | 24 | 1.63 in |
| EG-F-024-020 | 22 | 33.00 in | 2.88 in | 6.00 in | 25.25 in | 0.50 in | 22.25 in | 455 lb | 29.25 in | 24 | 1.75 in |
| EG-F-024-021 | 24 | 36.00 in | 3.00 in | 6.25 in | 27.63 in | 0.50 in | 24.25 in | 570 lb | 32.00 in | 24 | 1.88 in |
Selection notes
Facing in this dimensional series: 1/4 in raised face (RF).
A flat face (FF) can be specified with the inquiry.
Confirm the bore against the required pipe schedule and wall thickness.
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.