NW Socket weld Flange
| Parts No. | Flange Ref. | Material | A | B | C | D | E |
| CO-FL-WS-N10 | KF10 | 304 S.S. | 13 | 12.7 | 30 | 16.5 | 12.2 |
| CO-FL-WS-N16 | KF16 | 304 S.S. | 19.3 | 12.7 | 30 | 20.5 | 17.2 |
| CO-FL-WS-N25 | KF25 | 304 S.S. | 25.7 | 12.7 | 40 | 29 | 26.2 |
| CO-FL-WS-N40 | KF40 | 304 S.S. | 38.4 | 12.7 | 55 | 44.7 | 41.2 |
| CO-FL-WS-N50 | KF50 | 304 S.S. | 51 | 12.7 | 75 | 57.4 | 52.2 |