EG-F-068
Industry Standard Class 350 Weld Neck Flanges
Butt-weld connection with a tapered hub. Specify the bore to suit the connected pipe.
| Series | Industry Standard |
| Class | 350 |
| Size range | NPS 26–96 |
| Size entries | 19 |
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) | RF diameter (R) | Length through hub (Y) | Hub base OD (X) | Weld-end OD (A) | Approx. weight | Bolt circle (C) | Bolt holes | Hole diameter |
|---|---|---|---|---|---|---|---|---|---|---|---|
| EG-F-068-001 | 26 | 32.75 in | 2.50 in | 29.50 in | 5.00 in | 27.88 in | Specified by purchaser | 245 lb | 30.63 in | 28 | 1.13 in |
| EG-F-068-002 | 28 | 34.75 in | 2.50 in | 31.50 in | 5.00 in | 29.88 in | Specified by purchaser | 260 lb | 32.63 in | 28 | 1.13 in |
| EG-F-068-003 | 30 | 37.00 in | 2.63 in | 33.75 in | 5.25 in | 32.13 in | Specified by purchaser | 305 lb | 34.88 in | 32 | 1.13 in |
| EG-F-068-004 | 32 | 39.00 in | 2.75 in | 35.75 in | 5.50 in | 34.13 in | Specified by purchaser | 340 lb | 36.88 in | 36 | 1.13 in |
| EG-F-068-005 | 34 | 41.00 in | 2.88 in | 37.75 in | 5.75 in | 36.13 in | Specified by purchaser | 375 lb | 38.88 in | 40 | 1.13 in |
| EG-F-068-006 | 36 | 43.75 in | 3.13 in | 40.25 in | 6.13 in | 38.50 in | Specified by purchaser | 480 lb | 41.50 in | 40 | 1.25 in |
| EG-F-068-007 | 38 | 45.75 in | 3.13 in | 42.25 in | 6.13 in | 40.50 in | Specified by purchaser | 510 lb | 43.50 in | 40 | 1.25 in |
| EG-F-068-008 | 40 | 47.75 in | 3.25 in | 44.25 in | 6.25 in | 42.50 in | Specified by purchaser | 540 lb | 45.50 in | 44 | 1.25 in |
| EG-F-068-009 | 42 | 50.00 in | 3.50 in | 46.50 in | 6.50 in | 44.75 in | Specified by purchaser | 640 lb | 47.75 in | 48 | 1.25 in |
| EG-F-068-010 | 44 | 52.75 in | 3.75 in | 48.88 in | 6.75 in | 46.75 in | Specified by purchaser | 760 lb | 50.25 in | 44 | 1.38 in |
| EG-F-068-011 | 46 | 54.75 in | 4.25 in | 50.88 in | 7.25 in | 48.75 in | Specified by purchaser | 880 lb | 52.25 in | 48 | 1.38 in |
| EG-F-068-012 | 48 | 56.75 in | 4.25 in | 52.88 in | 7.25 in | 50.75 in | Specified by purchaser | 920 lb | 54.25 in | 48 | 1.38 in |
| EG-F-068-013 | 52 | 61.50 in | 4.25 in | 57.25 in | 7.50 in | 55.00 in | Specified by purchaser | 1075 lb | 58.75 in | 52 | 1.50 in |
| EG-F-068-014 | 54 | 63.50 in | 4.50 in | 59.25 in | 7.75 in | 57.00 in | Specified by purchaser | 1200 lb | 60.75 in | 52 | 1.50 in |
| EG-F-068-015 | 60 | 69.50 in | 4.50 in | 65.25 in | 8.00 in | 63.00 in | Specified by purchaser | 1325 lb | 66.75 in | 60 | 1.50 in |
| EG-F-068-016 | 66 | 77.00 in | 4.00 in | 72.38 in | 8.50 in | 70.00 in | Specified by purchaser | 1675 lb | 74.00 in | 60 | 1.63 in |
| EG-F-068-017 | 72 | 83.00 in | 4.00 in | 78.38 in | 9.00 in | 76.00 in | Specified by purchaser | 1850 lb | 80.00 in | 72 | 1.63 in |
| EG-F-068-018 | 84 | 96.50 in | 5.00 in | 91.25 in | 10.00 in | 89.00 in | Specified by purchaser | 2950 lb | 93.25 in | 80 | 1.75 in |
| EG-F-068-019 | 96 | 109.25 in | 6.25 in | 103.88 in | 11.25 in | 101.25 in | Specified by purchaser | 4250 lb | 105.75 in | 84 | 1.88 in |
Selection notes
Facing in this dimensional series: 1/16 in raised face (RF).
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.