Otto Graf GmbH
Plastic Products
Tel. +49 7641 589-0
Fax +49 7641 589-50
Carl-Zeiss-Straße 2-6
DE-79331 Teningen, Germany

Nominal diameter (ND, Nominal Diameter)

Nominal diameter (ND, Nominal Diameter)

Corresponds to the clear diameter of the pipe parts in mm (for example, DN 110), and forms the characterising feature of matching parts within a pipeline system.

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