NOTE: Dimensions N1, N2 and N3 are measured at the intersection of the hub draft angle and the back face of the flange.
Dimensions in mm
* For flanges type 21 the outside hub diameter approximately corresponds to the outside pipe diameter.
Next: PN 160 - PN 400 Flanges DIN EN 1092-1
Previous: PN 25 Flanges DIN EN 1092-1