Important notes

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The principle of the plug-in couplings for the pressure and return lines is the same. It is the diameters of the plug-in coupling and of the pipelines that differ (return line = large diameter / pressure line = small diameter).

Important notes

Plug-in couplings are components that permit simple, fast and precise connection of pipelines. These precision components must be handled carefully during repairs. Excess force during assembly work, damage to the sealing surface and soiling can cause leakage.

Perform preparations carefully when handling plug-in couplings - e.g. cleaning and fitting the plugs - as repairs are possible only by replacing the affected line in most cases. Only the threaded part A (with fitted O-rings) and the holder C are available as individual parts for the plug-in coupling (see Figure ).