Products / Coval - Vacuum managers

Self-regulating vacuum pumps (pneumatic vacuum and blow-off control), GVMAXNK14P2 series
. Nozzle Ø : 2.5 mm
. Maximum vacuum : 85%
. Suction flow rate : up to 200 Nl/min
. Integrated vacuum regulator
. 2 pneumatic vacuum switch

The communication between both elements, pneumatic vacuum switch and gripping valve control allows the consumption of compressed air to be regulated and in particular significantly reduced. This range of vacuum pumps is strongly recommended for gripping airtight products, holding and for medium or long cycles in explosive environments. Pneumatically controllable blow-off is integrated for release.
Operating principle
When the selected vacuum level is reached, the compressed air supply stops. This interruption does not have any effect on the operation in progress as the no-return valve maintains the vacuum and thus the grip. The vacuum switch continually analyzes the vacuum requirements. As soon as the minimum threshold is reached, it activates the vacuum generation valve. The chosen level of vacuum is immediately re-established.
The GVMAX P1 has two non-return valve functions installed as standard which enables it to maintain the vacuum within the circuit if the pneumatic power is interrupted. This function guarantees maximum safety conditions for operators during handling.
Supply: Non-lubricated filtered air, 2 to 6 bar, optimum at 4 bar
Temperature: 0 to 60 °C
2 x Pneumatic Vacuum Switch :
. Vacuum Switch 1: For Integrated vacuum regulator
. Vacuum Switch 2: For "Product Gripped"
Pressure at the vacuum switch : Equal to or greater than vacuum pumps supply pressure
Hysteresis: 100 mbar max.
Materials: POM – 2017A – Cu Zn – PA6 15% FG
Branch-specific applications
reference Nozzle diameter
Ø (mm)
Maximum vacuum
mv% (%)
Air drawn in
aa (Nl/min)
Mas (g)
GVMAXNK14P2 2.5 90 200 510