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Constant vacuumpressure isnot absolutelynecessary for reliableholdingof objects. Continuousair consump-
tion canbeavoidedbyusinganair-saving circuit, especially in the caseof smoothsurfaces. Savingsamount
to roughly60%of previously requiredvolumesof compressedair.
Working it out for you: air-saving circuits in
vacuumapplications
Switchoff vacuumgeneration
intermittently
ThevacuumsuctionnozzleOVEM
with integratedair-saving circuit
monitorsvacuumpressure.When
thepredefined level is reached,
thevacuumgenerator is
switchedoff until thespecified
vacuumpressurevalue isonce
againexceeded.
-60%
• The compressedair supply is
shut downbyasolenoidvalve,
andvacuumpressure ismoni-
toredbyasensor.
• Theair-saving circuit isespe-
ciallyefficient in the caseof
smoothsurfaces, and reduces
air consumptionbyup to60%.
V
t
V
-0.7
-0.5
Vacuumpressurep
Standardvolumetricflow rateq
n
Energy
savings
Without air-saving circuit
Withair-saving circuit
