For QRNF stubs
Flanges - ISO-DIN series.
Steel core backing ring, PP/FRP coated, according to EN/ISO/DIN for stubs QRV and QPV. Drilling: PN 10/16 up to DN 150; PN 10 from DN 200.
Those backing rings are specifically used for socket welding, for other diameters please refer to the ODT range.
| Reference | d | DN | b | d2 | d6 | D | K | M | n | *(Nm) | g |
|---|---|---|---|---|---|---|---|---|---|---|---|
| SWODTD110DN100 | 110 | 100 | 20 | 18,6 | 135 | 221 | 180 | M16 | 8 | 35 | 1330 |
*maximum recommended tightening torque
n = number of bolts