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on the other hand
located on the cup gripping plane
A filter that functions as a silencer is installed on the suction inlet
the cups for gripping grinding discs are made with natural para rubber N
Vacuum Shut-Off Valves Various Connections (refer to PDF):14 03 10 on the other handShut off valves These are special one way valves that, when properly calibrated, allow a certain quantity of fluid to go through; afterwards, if the fluid continues to go through, they automatically close. These shut off valves have been specially designed to be applied on the cups and, in case of lack of objects to be gripped, of defective grips or leaks, they automatically deactivate suction, thus preventing any reduction of the level of vacuum on