VA

Library

Application

  • Dewatering?and drying.
  • Distilling and concentration.
  • Cooling and deodorizing.
  • Priming for a drainage pump.
  • Vacuum and suction transport.
  • Other vacuum sources.


Liquid Ring Vacuum Pumps
(Single-action Type)

Bore Inlet x Outlet(mm) 40x40 - 100x100
Motor Output(kW) 5.5 - 30

The VA-series vacuum pump is a liquid ring vacuum pump of single-action type. It is compactly designed and has minimum operating vibration. Being water used as the seal, there will be no wear, and the performance is unaffected by liquid droplet mixing with intake gas. Available in motor direct-coupled type with motor output ranging from 5.5kW to 30kW.

Performance Curves
50Hz Standard Specifications

at a seal liquid temperature of 15℃

Bore
[Inlet x Outlet]
(mm)
ModelRotation
speed
(min-1)
Motor
Output
(kW)
Number
of poles
Suction capacity [suction condition] (m3/min)
Inlet pressure (kPa G kPa abs)
Approx. seal
liquid flow
rate* (L/min)
-93.3-90.6-86.6-80.0-66.60-86.6
8.010.714.721.334.7101.314.7
40 x 40 40VA45.5 1450 5.5 4 1.35 1.72 2.1 2.5 2.7 2.7 20
50 x 50 50VA47.5 1450 7.5 4 2.22 2.75 3.25 3.64 3.8 3.8 25
65 x 65 65VA411 1450 11 4 3.44 4.26 5.02 5.55 5.7 5.7 30
80 x 80 80VA615 970 15 6 5.4 6.6 7.6 8.3 8.5 8.5 35
100 x 100 100VA622 970 22 6 8.0 9.7 11.3 12.5 13.0 13.0 50

*The seal liquid flow rate indicates the values at -86.6 kPa G (14.7 kPa abs).

Performance Curves
60Hz Standard Specifications

at a seal liquid temperature of 15℃

Bore
[Inlet x Outlet]
(mm)
ModelRotation
speed
(min-1)
Motor
Output
(kW)
Number
of poles
Suction capacity [suction condition] (m3/min)
Inlet pressure (kPa G kPa abs)
Approx. seal
liquid flow
rate* (L/min)
-93-90-86-80-60-40-20-80
8.311.315.321.341.361.381.321.3
20 x 20 20VK2.75 3500 0.75 2 - 0.15 0.2 0.24 0.3 0.31 0.3 4
25 x 25 25VK21.5 3500 1.5 2 - 0.30 0.4 0.5 0.61 0.62 0.61 7
32 x 32 32VK22.2 3500 2.2 2 0.43 0.64 0.78 0.89 1 1.02 1 8
40 x 40 40VK43.7 1750 3.7 4 0.68 1.10 1.4 1.62 1.9 1.98 2 12

*The seal liquid flow rate indicates the values at -80 kPa G (21.3 kPa abs).