Liquid-packed ring-type vacuum pumps

Depending on material of inner flowing part designed for pumping (creation of vacuum ) of air, inert or aggressive gases, insoluble in water, to produce or maintain vacuum.

Operating medium – water.nasvvn2-2

Application:

  • chemical,
  • ore mining and smelting industry,
  • food industry,
  • pulp and paper industry,
  • agriculture,
  • construction and medicine.

Main advantage of pumps – easy operation and maintenance. Pumps consist of small quantity of parts. They have no special system for lubrication and oil pumps. All clearances between rotor and static casing are sealed with operating medium. Simplicity of construction, no friction pairs in inner flowing part provide reliability and service life of pump operation.

Technical Data

  Designation Capacity as per initial conditions,
m3/min.		 Pressure Temperature,° С Water nominal,
consump-
tion,
l/min		 Consumed
power,
kW		 Rotational
speed
(synchr.) rpm		 Weight of
pump without drive,
kg
suction, MPa discharge, МPа Supplied water Gas, nominal
ВВН-12/0,4 12±1,2 0,04 0,1013 15±3 20±5 27 19 1000 390
ВВН1-12ТМ 12±1,2 0,04 0,1013 15±3 20±5 27 19 1000 300
ВВН-25/0,4 25±2,5 0,04 0,1013 15±3 20±5 48 35 750 720
ВВН-50/0,2Н 45±4,5 0,02 0,1013 15±3 20±5 78 63 600 930
ВВН2-50Н 45±4,5 0,02 0,1013 15±3 20±5 78 63 600 1100
ВВН2-50Х 45±4,5 0,02 0,1013 15±3 20±5 78 63 600 1100
ВВН1-50ТМ 50±0,5 0,04 0,1013 15±3 20±5 78 70 600 920
ВВН2-50М 52±5 0,02 0,1013 15±3 20±5 73 73 600 1350
ВВН2-150М 150(+15-7,5) 0,02 0,1013 15±3 20±5 370 180 300 5850
ВВН2-300 340(+34-17) 0,02 0,1013 15±3 20±5 800 410 250 12500
ДВВН-150Б 150 0,04 0,1013 15±3 20±5 705 187,5 186 8200

The example of pump designation:

«Pump ВВН1-12ТМ У3 20-057447991-047-99»,
 where ВВН – liquid-packed ring-type vacuum pump;
1 и 2 – nominal suction pressure: 1 – 0.04 МPа or 2 – 0.02 МPа;
12 – standard capacity, m³/min;
Т – inner flowing part material:

Т – titanium alloy ВТ1-0;
Н – stainless steel;
– 06ХН28МДТ for ВВН2-50Н;
– 12Х18Н10Т for ВВН-50/0,2Н
 Х – alloy ХН65МВ
without letter – carbon steel or gray cast iron
TУ – modernized,
M – carbon steel or gray cast iron.

The Company improves the pumping equipment and equips pumping units with the motors of different manufactures. Thereby when ordering, please specify overall and mounting dimensions and required parameters according to the recommended form of a Questionnaire.

When ordering the equipment which is been interested in, please fill in the Questionnaire.