Available in Stainless Steel, Scotchkote, PPA, Zinc Plated and Galvanised, pictures of each type of backing flange on the right hand side.
Backing Flanges available are PN10, PN16, Table D, Table E, 150lb and 300lb
Backers for Stub Ends and Nominal Bore Pressed Collars
For the full list of Flange Dimensions refer to the flange tables listed on this site. Reduced thickenss backing flanges are available on some types of backer, ask sales for flange the thicknesses available call 01236 738755
| PIPE SIZE | Flange i/d |
| in mm | |
| 1/2" NB | 25.0 |
| 3/4" NB | 28.2 |
| 1" NB | 35.1 |
| 1 1/4" NB | 43.7 |
| 1 1/2" NB | 50.0 |
| 2" NB | 62.5 |
| 2 1/2" NB | 75.4 |
| 3" NB | 91.4 |
| 4" NB | 116.8 |
| 5" NB | 144.5 |
| 6" NB | 171.5 |
| 8" NB | 222.3 |
| 10" NB | 277.4 |
| 12" NB | 328.2 |
| 14" NB | 360.2 |
| 16" NB | 411.2 |
| 18" NB | 462.3 |
| 20" NB | 514.4 |
| 24" NB | 616.0 |
