NOTE 1: Dimensions N1, N2 and N3 are measured at the intersection of the hub draft angle and the back face of the flange.
NOTE 2: For d1 dimensions see document "Flange facing according to DIN EN 1092-1".
Dimensions in mm
* Above DN 600 dimension C1 is to be specified by the purchaser.
** For flanges type 21 the outside hub diameter approximately corresponds to the outside pipe diameter.
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