G or R (Whitworth) or BSP (British Standard Pipe) Thread

Cylindrical threads which are mainly used in countries with imperial system. The size of e. g. R 3/4" does not stand for a diameter. Thus the corresponding size has to be determined according to charts. Please note for the final determination whether you have a fitting with G or R-threads: G-threads, male as well as female, are cylindrical whereas you have to distinguish that male R-threads have a conical form and its female counterpart is cylindrical.

G-oder-R-Tabelle-Englisch

G-oder-R-Zeichnung-Englisch

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