This adaptor allows the filling of a 225 Bar cylinder from a 300 Bar compressor without the need to adapt/modify the compressor or whips.
This adaptor has a DIN 300 threaded inlet (female so it connects to a DIN 300 whip) and a DIN 230 male outlet (that will safely screw in to a 225 Bar bottle). There is a safety valve (230 Bar) that is connected into the adaptor to avoid over pressurisation to the 225 Bar bottles!
This can be use if you want to fill both 225 Bar and 300 Bar bottles from a 300 Bar compressor