The GVP series vacuum pumps are the simplest in the modular range. They exist in: 5 levels of suction flow rates (essential for evacuation time) characterised by nozzle diameter ( 1.2 to 3mm) 3 different levels of maximum vacuum: Version X: 50% vacuum for very porous products Version T: 75% vacuum for porous products Version N: 90% vacuum for airtight products for the same nozzle diameter, the suction flow rate increases proportionally to the decrease in the maximum vacuum level. In addition to suction cups, they can also be used for dosing liquid, spraying and tank depressurisation.