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safety couplings ISO 4414/EN 983, NW 7,2

The couplings of nominal width 7.2 mm are by far the most common coupling types in Germany. The couplings are 07, Festo model series KD4/KS4, IMI-Norgren series 238, Aventics series CP1-NW 7 / 7.8 and many other manufacturers. Safety couplings acc. to ISO 4414 / EN983 differ from the standard coupling in so far as the coupling plug is first vented during decoupling before it is completely decoupled. Thus a possible occurring recoil effect with a standard coupling can be reliably prevented.