|Nominal size||Branch size||Dimensions|
|DN 1||DN 2||a max.
Vitrified clay pipes and fittings are standardised in EN 295-1. Supplementary requirements defines the certification program ZP WN 295.
All measurements - especially when connecting to other products - must be checked and depend on the specifications of EN 295 and on the certification program ZP WN 295. Subject to technical changes.