2BV series Liquid ring vacuum pump

Products

2BV series water ring vacuum pump is suitable for pumping gas and steam. The suction pressure can reach 33mbar (that is, 97% vacuum). If transformer oil is used as working fluid, these pumps are called oil ring vacuum pumps, and the suction pressure can reach 6.7mbar (abs) (99% vacuum). So the oil ring vacuum pump can completely replace the reciprocating vacuum pump. When the liquid ring vacuum pump is working for a long time near the maximum vacuum, it must be connected with the cavitation protection tube to eliminate the screams and protect the pump. When the 2BV pump is used as a compressor, the exhaust pressure should be checked to select the suitable motor power, because the motor power increases with the exhaust pressure.

Main features:
1. The motor is connected directly with the pump, saving space and convenient installation.
2. Adopt mechanical seal standard configuration to eliminate leakage and facilitate maintenance.
3. Stable operation and low noise to 62 db.
4. All parts are precision machined by CNC lathe, and the mechanical seal adopts international famous brands such as John Crane or Bergman to ensure the accuracy.
5. International famous brand bearing with NTN or NSK.
6. 2BV series liquid ring pump can be used with ZJ series roz vacuum pump, which can produce roots and liquid ring vacuum system. The final vacuum could be 5 pa. The 2BV liquid ring vacuum pump can also be used with separator and heat exchanger to form a closed cycle unit, which can be backed up by a pump and improve the safety and reliability.

Curve No.

Model

Max. suction capacity

Ultimate vacuum
mbar(MPa)

Motor power 
kW

Speed
r.p.m

Operating liquid

flow rate 
L/min

Noise
dB(A)

Weight
kg

m3/min

m3/h

60V

2BV2-060

0.45

27






33mbar
(-0.097MPa)

0.81

2840

2.5

62

37

61V

2BV2-061

0.86

52

1.45

2840

2.5

65

41

70V

2BV2-070

1.33

80

2.35

2860

3

66

66

71V

2BV2-071

1.83

110

3.85

2880

4.7

72

85

110V

2BV5-110

2.75

165

4

1440

7.2

63

120

111V

2BV5-111

3.83

230

5.5

1440

8.8

68

150

121V

2BV5-121

4.66

280

7.5

1440

11

69

210

131V

2BV5-131

6.66

400

11

1460

16

73

280

161V

2BV5-161

8.33

500

15

970

22

74

390

110V

2BV6-110

2.75

165

4

1440

67

63

150

111V

2BV6-111

3.83

230

5.5

1440

10

68

200

121V

2BV6-121

4.66

280

7.5

1440

12

69

230

131V

2BV6-131

6.66

400

11

1460

17

73

315

161V

2BV6-161

8.33

500

15

970

23

74

426