2BE1series

2017-03-24
service content:


 

Product Description

Application and characteristics 
The liquid ring vacuum pumps and compressors of 2BE series are high-efficient and energy-saving products developed by our company on the basis of our scientific achievements and production experiences over the years combining with the advanced international technique of similar products. They are usually used to suction the gas without solid particle, undissolved and noncorrosive gas in order to form vacuum and pressure in the closed container. By changing the structure material, they can also be used to suction corrosive gas or use corrosive liquid as operating liquid. They are widely used in paper-making, chemical, petrification, light industry, pharmacy, instruments, metallurgy, construction, electronical appliance, coal-cleaning, mineral concentration, fertilizer, etc.

These single-stage and single-acting pumps are simple in structure, convenient in maintaining, reliable in operating, efficient and energy-saving. They can run under tough working conditions with large drainage discharge and changing load impact. 2BE vacuum pumps adopt unique polytetrafluoroethylene valve plates (former liquid ring pumps use ball valves) for their exhaust systems. Each valve plate is covered on vents in outer side of a port plate and fixed by a stainless steel baffle at its other side. Curvature of the valve plate changes with inlet pressure so that pumping medium can be discharged when it reaches the inlet pressure. Such structure avoids over-compression in a vacuum system and automatically adjusts exhausting area to lower power consumption, thus a best operating efficiency can be obtained.

We have optimized designs of key parts like distribution plate, impeller and pump shaft by simplifying their structures and improving their performances, thus energy-saving target has been reached. Dynamic balance problem is radically solved because during impeller welding, blades are formed by one-step stamping with rational molded lines and all wheel hubs are processed. The impeller and pump shaft combined by shrinkage interference fit perform reliably and smoothly. Blades of the impeller will obtain good ductility after the impeller is welded and processed by overall heat treatment, thus impact resistance and flexure resistance of the blades are fundamentally guaranteed for application under tough working condition with changing load impact. The 2BE pumps are convenient in assembly, application and maintenance and simple in operation due to their gas-water separators, several vents at different positions, vent valve manholes in pump covers and clearances between the distribution plates and impellers which are adjusted by glands at both ends of locating shafts. 

All vacuum pumps will be subjected to strict inspections and tests in our testing center so as to guarantee their excellent, reliable and long lasting performances.


Application 

Tail gas/flare-gas recycle .recycle of VCM in PVC device .recycle gas compression .polyester production .liquid chlorine production
Pressure swing adsorption (PSA).vacuum crystallization and filtration .tower top vacuum system for reduced pressure distillation of crude oil 
Compression of inflammable and explosive gases like ethyne and hydrogen .compression of toxic and corrosive gases like chlorine .vacuum transfer of various materials


Water ring vacuum pump: model expression method
Models of 2BE pumps are expressed by 8 words (letters) and numbers as follows:

2BE1-- <1><2> <3>-<4>

2BE1is the name of single-stage water ring vacuum pump and 1 stands for 2BE high vacuum series.

<1><2> stands for nominal radius (cm) of the impeller.

<3> stands for code of width-diameter ratio of the impeller, specifically, 1 stands for B(width)/D(diameter)=0.5; 2 stands for B/D=0.75, 3 stands for B/D=1 and 5 stands for B/D=1.2.

<4> stands for code of minimal suction pressure, specifically, 0 stands for limiting vacuum of 33hpa and 1 stands for limiting vacuum of160hpa.


For example, "2BE1-403-0" stands for a single-stage water ring vacuum pump in which the nominal diameter of the impeller is 800mm, width-diameter ratio is 1 and minimal absolute suction pressure can reach 33hPa. Such pump can also be recorded as 2BE1-403 (since limiting vacuum of 2BE1 series is 33hpa and limiting vacuum of 2BE3 series is 160hpa, the <4> is usually ignored). 

Table of performance of 2BE1 liquid ring vacuum pumps (performance curves of compressors attached)
Click to activate the links of large figures for the performance curves. Please wait for a while if the figures appear slowly.


 

型号

Model

转速
(传动方式)
Rotating speed

(Rotating mode)

r/min

 

轴功率
Shaft power

kW

 配用电机

Motor
380V

极限真空度

(表压)

Limiting vacuum

(Gage pressure)

hpa

最大抽气速率 

Maximum suction rate

泵头重

Pump head weight
kg

m3/h

m3/min

2BE1-102 
真空泵曲线

Vacuum pump curve

1450(D)
1750(V-belt)

6.0
8.0

Y132M-4-7.5
Y160M-4-11

33hpa
(-0.097MPa)

246
290

4.1
4.8

110

2BE1-103 
真空泵曲线

Vacuum pump curve

1450(D)
1750(V-belt)

8.2
11.1

Y160M-4-11
Y160L-4-15

33hpa
(-0.097MPa)

340
412

5.7
6.9

125

2BE1-152
真空泵曲线

Vacuum pump curve

1450(D)
1625(V-belt)
1750(V-belt)

12.5
15.0
17.2

Y160L-4-15
Y180M-4-18.5
Y180L-4-22

33hpa
(-0.097MPa)

450
510
535

7.5
8.5
8.9

175

2BE1-153
真空泵曲线

Vacuum pump curve

 

附:101-153压缩机曲线

Attached:101-153 Compressor curve

1450(D)
1100(V-belt)
1300(V-belt)
1620(V-belt)
1750(V-belt)

16.3
10.6

13.4
19.6
22.3

Y180M-4-18.5
Y160L-4-15

Y180M-4-18.5
Y180L-4-22
Y200L-4-30

33hpa
(-0.097MPa)

600
445

535
648
700

10.0
7.4

8.9
10.8
11.7

200

2BE1-202
真空泵曲线

Vacuum pump curve

 

附:压缩机曲线

Attached: Compressor curve

980(D)
790(V-belt)
880(V-belt)
1100(V-belt)
1170(V-belt)
1300(V-belt)

18.2
13.4
16.3
23.8
25.7
30

Y200L2-6-22
Y180M-4-18.5
Y180M-4-18.5
Y200L-4-30
Y200L-4-30
Y225S-4-37

33hpa
(-0.097MPa)

750
590
670
860
888
950

12.5
9.8
11.2
14.3
14.8
15.8

460

2BE1-203
真空泵曲线

Vacuum pump curve

 

附:压缩机曲线

Attached: Compressor curve

980(D)
790(V-belt)
880(V-belt)
1100(V-belt)
1170(V-belt)
1300(V-belt)

29.5
21.2
24.8
33
38
42

Y250M-6-37
Y200L-4-30
Y200L-4-30
Y225M-4-45
Y225M-4-45
Y250M-4-55

33hpa
(-0.097MPa)

1080
870
980
1210
1320
1390

18
14.5
16.3
20.2
22.0
23.2

530

2BE1-252
真空泵曲线

Vacuum pump curve

附:压缩机曲线

Attached: Compressor curve

740(D)
565(V-belt)
660(V-belt)
830(V-belt)
885(V-belt)
938(V-belt)

38
23.7
31.8
45

54
60

Y280M-8-45
Y200L-4-30
Y225S-4-37
Y250M-4-55
Y280S-4-75
Y280S-4-75

33hpa
(-0.097MPa)

1700
1200
1500
1770
2000
2100

28.3
20.0
25.0
29.5
33.3
35.0

880

2BE1-253
真空泵曲线

  Vacuum pump curve

附:压缩机曲线

Attached: Compressor curve

740(D)
565(V-belt)
660(V-belt)
740(V-belt)
792(V-belt)
820(V-belt)
880(V-belt)
940(V-belt)

54
37.2
45
50.8
60
68
75.1
88

Y315M-8-75
Y225M-4-45
Y250M-4-55
Y280S-4-75
Y280S-4-75
Y280M-4-75
Y280M-4-90
Y315S-4-110

33hpa
(-0.097MPa)

2450
1690
2100
2340
2560
2640
2780
3050

40.8
28.2
35
39
42.7
44
46.3
50.8

930

r>2BE1-303
真空泵曲线

Vacuum pump curve

附:压缩机曲线

Attached: Compressor curve

740(D)
590(D)
466(V-belt)
530(V-belt)
583(V-belt)
660(V-belt)
740(V-belt)

98
65.5
48
58
64
79.8
100

Y315L2-8-110
Y315L2-10-75
Y250M-4-55
Y280S-4-75
Y280S-4-75
Y280M-4-90
Y315S-4-110

33hpa
(-0.097MPa)

4000
3200
2520
2820
3100
3550
3840

66.7
53.3
42
47
51.7
59.2
64

1700

2BE1-305
真空泵曲线

Vacuum pump curve

附:压缩机曲线

Attached: Compressor curve

740(D)
590(D)
490(V-belt)
530(V-belt)
583(V-belt)
660(V-belt)
740(V-belt)

108
70
55
61
68
90
110

Y355M1-8-132
Y355M1-10-90
Y280S-4-75
Y280S-4-75
Y280M-4-90
Y315S-4-110
Y315M-4-132

33hpa
(-0.097MPa)

4520
3750
3150
3380
3700
4090
4550

75.3
62.5
52.5
56.4
61.2
68.1
75.8

1820

2BE1-353
真空泵曲线

Vacuum pump curve

附:压缩机曲线

Attached: Compressor curve

590(D)
390(V-belt)
415(V-belt)
460(V-belt)
530(V-belt)
580(V-belt)
620(V-belt)
660(V-belt)

121
63
69

79

95

115

133
152

Y355L2-10-160
Y280S-4-75
Y280M-4-90
Y280M-4-90
Y315S-4-110

Y315M-4-132

Y315L1-4-160
Y315L2-4-185

33hpa
(-0.097MPa)

5300
3580
3700
4100
4620
5160

5500
5850

88.3
59.7
61.7
68.3
77.0
86

91.7
97.5

2300

2BE1-355
真空泵曲线

Vacuum pump curve

附:压缩机曲线

Attached: Compressor curve

590(D)
390(V-belt)
420(V-belt)
460(V-belt)
523(V-belt)
590(V-belt)
660(V-belt)

136
75
80.8

90
113
136
182

Y355L2-10-160
Y280M-4-90
Y280M-4-90
Y315S-4-110
Y315M-4-132
Y315L1-4-160
Y315L2-4-200

33hpa
(-0.097MPa)

5700

4180
4260

4850
5230
6000
6510

95
69.7
71
80.8
87.1
100
108

2450

2BE1-403
真空泵曲线

Vacuum pump curve

附:压缩机曲线

Attached: Compressor curve

330(V-belt)
372(V-belt)
420(V-belt)
472(V-belt)
530(V-belt)

98
110
131
160
213

Y315M-4-132
Y315M-4-132
Y315L1-4-160
Y315L2-4-200
Y355M2-4-250

33hpa
(-0.097MPa)

4860
5400 6470
7380
8100

81
90
107.8
123.0
135.0

3750

2BE1-405
真空泵曲线

Vacuum pump curve

附:压缩机曲线

Attached: Compressor curve

330(V-belt)
372(V-belt)
420(V-belt)
472(V-belt)
530(V-belt)

100
118
140
170
216

Y315M-4-132
Y315L1-4-160
Y315L2-4-185
Y315L2-4-200
Y355M2-4-250

33hpa
(-0.097MPa)

6000
6700
7500
8350
9450

100.0
111.7
125.0
139.2
157.5

3900

Note: 
The limiting vacuum of the 2BE1 series is 33hpa (=-735mmhg=-0.097Mpa=33mbar). 1hpa=1mbar,1mmhg=133.3 Pa.

The suction capacity in the table is the maximum capacity. Actual exhaust speed changes as the suction pressure. Specific operating pressure and the performance curves shall be considered when selecting pumps. 

 Motor power of the vacuum pumps above are appropriate in most cases, but shall be increased accordingly when vent pressures (gage pressure 0.04-0.12MPa) are relatively higher so as to suit to the function as liquid ring compressors. The table also includes performance curves of the pumps when they function as compressors. Pumps can be selected according to the curves in case of such situation.

 

Configuration (102~253)




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