VVN

Liquid ring vacuum pumps

Liquid ring vacuum pumps are designed for suction of air, aggressive or inert gasses, insoluble in water, in order to create or maintain a vacuum. Working fluid is water.The main advantage of these pumps is easy operation and maintenance. They consist of a small number of parts and don’t have a special lubrication system and oil pumps. All the gaps between a rotating rotor and stationary housing are sealed with a working fluid. The simplicity of design and the lack of friction pairs in the flow section provide the reliability and durability of the pump.

Pump type

Performance normalized to initial conditions,
m3/sec (m3/min)

Inlet pressure,
MPa(kgf/sm2)

Exit pressure,
MPa (kgf/см2)

Water consumption,
l/sec

Power consumption, kvt

Shaft speed
(synchr.),
rpm

Dimensions of the pump, mm

Pump weight,
kg

length

width

height

VVN2-50М

0,875 (52,5)

0,02 (0,204)

0,1013 (1,033)

1,23

70,88

600

1750

850

900

1350

VVN2-50Х

0,75 (45)

0,02 (0,204)

0,1013 (1,033)

1,3

63

600

1750

800

900

1100

VVN2-50Н

0,75 (45)

0,02 (0,204)

0,1013 (1,033)

1,3

63

600

1750

800

900

1100