The vacuum hoses are selected to match the size of the volume flows as well as the size of the suction cups. The table “Technical Data of Suction Cups” includes a recommendation for a hose cross section on the respective page of the suction cup and the ejector. The different hoses are listed on page “Filters and Connectors”.
For this example we choose:
Vacuum hose VSL 8/6 with an internal diameter of 6 mm
See table “Technical Data” for the suction cup of type PFYN 95 NBR used in this example.