Buy Water Ring Vacuum Pump

In recent years, in order to solve the problem of anti-corrosion of vacuum pump products, a long-term exploration and research has been carried out. Water ring vacuum pump is favored by the market because of its advantages of energy saving and wide corrosion resistance.

It is reported that the water ring vacuum pump has the advantages of good corrosion resistance, compact structure, energy saving, high efficiency and reliable operation because of its small proportion of materials, high strength and wide corrosion resistance. It solves the drawbacks of the original pump products and is suitable for pumping or pressing air, corrosive gas and slag water, organic and liquid without suspended particles or crystals. It is widely used in chemical industry. Industrial and pharmaceutical industries, such as vacuum suction, vacuum filtration, vacuum drying, vacuum concentration, vacuum evaporation, vacuum distillation, vacuum crystallization and plastic forming.

It is pointed out that, especially for by-product gases such as hydrogen chloride, which often occur in chemical and pharmaceutical enterprises, the use of corrosion-resistant water ring vacuum pump can effectively suck and compress these corrosive gases to form by-products such as hydrochloric acid with high concentration, which not only meets the requirements of environmental protection, but also forms a circular economy.

At present, there are many types of water ring vacuum pumps on the market, many customers reflect that they do not know how to select the type. To this end, the EVP vacuum pump manufacturer’s technicians gave four suggestions on the selection of water-ring vacuum pump, hoping to provide some reference for customers when purchasing water-ring vacuum pump.

1. Choose the specifications with lower rotational speed as far as possible.

It is understood that at present, there are many rotational speeds for the same specifications of water ring vacuum pumps in China. Among them, the larger size of the pump impeller diameter, so the speed is low, so in order to achieve the same pumping volume, we should try to choose the pump with lower speed, so that the consumption of specific power is smaller, higher efficiency.

In addition, the larger size of the water ring vacuum pump has a long blade, i.e. a long runner, a small curvature of the fluid, a straight streamline, a slow-changing flow, and a small energy loss due to the secondary eddy current and boundary layer generated in the flow of the fluid.

2. The influence of water temperature should be considered.

It is reported that the performance curves and technical data of domestic and foreign water ring vacuum pumps are obtained on the premise that the inlet water temperature is 15 degrees Celsius. Therefore, when selecting water ring vacuum pump, the effect of actual water temperature on gas flow should be fully considered.

According to the industry, the temperature of the supplementary water for most users in our country is between 25 35 C. Therefore, the selection of vacuum pumps should be more appropriate than the amount of air on the technical documents.

3. Consider the effect of inspiratory resistance

Because the gas suction location is often in the coal mine, far from the water ring vacuum pump (some coal mines reach several kilometers), and the suction pipeline is too long, the suction resistance loss should be fully considered. It can be calculated by the formula for calculating the suction resistance used in the coal mine system. When arranging the pipeline, the thicker suction pipeline should be used to reduce the resistance loss and the right angle elbow should be minimized. To achieve the purpose of improving the efficiency of inspiration.

4. Selection of Exhaust Gas with Micro-positive Pressure

It is reported that at present, some coal mines have to discharge the exhausted gas far away or compress it into the gas storage tank, and the exhaust pressure is generally between 0.02 and 0.05 MPa G. Because the performance curves and technical data in the technical documents of water ring vacuum pumps are obtained at the exhaust pressure of one standard atmospheric pressure, the influence of the increase of exhaust pressure and the increase of reflux in the pump chamber on the pumping capacity should be taken into account in the selection of the pumps.

In addition, as the exhaust pressure rises, the shaft power of the pump increases, and the power of the drive should also increase. In this case, the manufacturer should provide the test performance curve and the corresponding technical data in order to fully meet the user’s requirements.

Buy Water Ring Vacuum Pump

2BV Series Liquid Ring Vacuum Pump

Curve No. Model Max. suction capacity Ultimate vacuum
mbar(MPa)
Motor power
kW
Speed
r.p.m
Operating liquidflow 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

Buy Water Ring Vacuum Pump

2SK Liquid Ring Vacuum Pump

Model Suction capacity Ultimate vacuum Power speed Water supply Inlet/outlet diam Water inlet
m³/min MPa(G) KW r/min L/min DN(mm) (mm)
2SK1.5 1.35 -0.097 4 1440 10-15 40 G1/2”
2SK-3 2.7 -0.098 7.5/11 1440 15-20 40 G1/2”
2SK-6 5.4 -0.098 15 1460 25-35 65 G1/2”
2SK-12 10.8 -0.098 22/30 970 40-50 100 G1/2”
2SK-20 18 -0.098 45 740 60-80 125 G3/4”
2SK-30 27 -0.098 55/75 740 70-90 125 G3/4”

Buy Water Ring Vacuum Pump

2BE1 Series Liquid Ring Vacuum Pump

Model Speed(Driving mode) Shaft power Motor power Ultimatevacuum Max. capacity Weight (excl.motor)
r/min KW 380V hpa M³/hr M³/min kg
2BE1-102 1450 (direct)1750 (V-belt) 6.08.0 Y132M-4-7.5Y160M-4-11 33hpa(-0.097MPa) 246290 4.14.8 110
2BE1-103 1450 (direct)1750 (V-belt) 8.211.1 Y160M-4-11Y160L-4-15 33hpa(-0.097MPa) 340412 5.76.9 125
2BE1-152 1450 (direct)1625 (V-belt)

1750 (V-belt)

12.515.0

17.2

Y160L-4-15Y180M-4-18.5

Y180L-4-22

33hpa(-0.097MPa) 450510

535

7.58.5

8.9

175
2BE1-153 1450 (direct)1100 (V-belt)

1300 (V-belt)

1620 (V-belt)

1750 (V-belt)

16.310.6

13.4

19.6

22.3

Y180M-4-18.5Y160L-4-15

Y180M-4-18.5

Y180L-4-22

Y200L-4-30

33hpa(-0.097MPa) 600445

535

648

700

10.07.4

8.9

10.8

11.7

200
2BE1-202 980 (direct)790 (V-belt)

880 (V-belt)

1100 (V-belt)

1170 (V-belt)

1300 (V-belt)

18.213.4

16.3

23.8

25.7

30

Y200L2-6-22Y180M-4-18.5

Y180M-4-18.5

Y200L-4-30

Y200L-4-30

Y225S-4-37

33hpa(-0.097MPa) 750590

670

860

888

950

12.59.8

11.2

14.3

14.8

15.8

460
2BE1-203 980 (direct)790 (V-belt)

880 (V-belt)

1100 (V-belt)

1170 (V-belt)

1300 (V-belt)

29.521.2

24.8

34

38

42

Y250M-6-37Y200L-4-30

Y200L-4-30

Y225M-4-45

Y225M-4-45

Y250M-4-55

33hpa(-0.097MPa) 1080870

980

1210

1320

1390

1814.5

16.3

20.2

22.0

23.2

530
2BE1-252 740 (direct)565 (V-belt)

660 (V-belt)

830 (V-belt)

885 (V-belt)

938 (V-belt)

3823.7

31.8

45

54

60

Y280M-8-45Y200L-4-30

Y225S-4-37

Y250M-4-55

Y280S-4-75

Y280S-4-75

33hpa(-0.097MPa) 17001200

1500

1770

2000

2100

28.320.0

25.0

29.5

33.3

35.0

870
2BE1-253 740 (direct)565 (V-belt)

660 (V-belt)

740 (V-belt)

792 (V-belt)

820 (V-belt)

880 (V-belt)

940 (V-belt)

5437.2

45

50.8

60

68

75.1

88

Y315M-8-75Y225M-4-45

Y250M-4-55

Y280S-4-75

Y280S-4-75

Y280M-4-75

Y280M-4-90

Y315S-4-110

33hpa(-0.097MPa) 24501690

2100

2340

2560

2640

2780

3050

40.828.2

35

39

42.7

44

46.3

50.8

930
2BE1-303 740 (direct)590 (direct)

466 (V-belt)

530 (V-belt)

583 (V-belt)

660 (V-belt)

740 (V-belt)

9865.5

48

58

64

79.8

96

Y315L2-8-110Y315L2-10-75

Y250M-4-55

Y280S-4-75

Y280S-4-75

Y280M-4-90

Y315S-4-110

33hpa(-0.097MPa) 40003200

2520

2820

3100

3550

3840

66.753.3

42

47

51.7

59.2

64

1700
2BE1-305 740 (direct)590 (direct)

490 (V-belt)

530 (V-belt)

583 (V-belt)

660 (V-belt)

740 (V-belt)

10870

55

61

68

90

110

Y355M1-8-132Y355M1-10-90

Y280S-4-75

Y280S-4-75

Y280M-4-90

Y315S-4-110

Y315M-4-132

33hpa(-0.097MPa) 45203750

3150

3380

3700

4090

4550

75.362.5

52.5

56.4

61.2

68.1

75.8

1820
2BE1-353 590 (direct)390 (V-belt)

425 (V-belt)

464 (V-belt)

530 (V-belt)

560 (V-belt)

620 (V-belt)

660 (V-belt)

12163

72

85

95

110

133

152

Y355L2-10-160Y280S-4-75

Y280M-4-90

Y315S-4-110

Y315M-4-110

Y315L1-4-132

Y315L1-4-160

Y315L2-4-185

33hpa(-0.097MPa) 53003580

3700

4100

4620

5000

5500

5850

88.359.7

61.7

68.3

77.0

83.3

91.7

97.5

2300
2BE1-355 590 (direct)390 (V-belt)

420 (V-belt)

464 (V-belt)

523 (V-belt)

590 (V-belt)

660 (V-belt)

13675

80.8

95

113

136

182

Y355L2-10-160Y280M-4-90

Y280-4-90

Y315S-4-110

Y315M-4-132

Y315L1-4-160

Y315L2-4-200

33hpa(-0.097MPa) 57004180

4260

4850

5230

6000

6510

9569.7

71

80.8

87.1

100

108

2450
2BE1-403 330 (V-belt)372 (V-belt)

420 (V-belt)

472 (V-belt)

530 (V-belt)

98110

131

160

213

Y315M-4-132Y315M-4-132

Y315L1-4-160

Y315L2-4-200

Y355M2-4-250

33hpa(-0.097MPa) 48605400 6470

7380

8100

8190

107.8

123.0

135.0

3750
2BE1-405 330 (V-belt)372 (V-belt)

420 (V-belt)

472 (V-belt)

530 (V-belt)

100118

140

170

216

Y315M-4-132Y315L1-4-160

Y315L2-4-185

Y315L2-4-200

Y355M2-4-250

33hpa(-0.097MPa) 60006700

7500

8350

9450

100.0111.7

125.0

139.2

157.5

3900

Buy Water Ring Vacuum Pump

DLV Series Double Stages Water Ring Vacuum Pumps

Model Motorspeed Motor power Max. suction capacity Min. inlet pressure
kw HP m3/h CFM mbar Inch Hg a
DLV-120 1450 4.0 5.4 145 85 33 1.0
1750 5.5 7.4 174 102 33 1.0
DLV-180 1450 5.5 7.4 186 109 33 1.0
1750 7.5 10.1 223 131 33 1.0
DLV-300 1450 7.5 10.1 283 167 33 1.0
1750 11.0 14.8 314 185 33 1.0
DLV-350 1450 11.0 14.8 342 201 33 1.0
1750 15.0 20.1 411 242 33 1.0
DLV-400 1450 15.0 20.1 425 250 33 1.0
1750 18.5 24.8 475 280 33 1.0

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