Single stage vacuum pump

Many ta would like to know which is better, single-stage vacuum pump or double-stage vacuum pump. Next, I would like to introduce our company’s single-stage vacuum pump to you. Our company’s best-selling single-stage vacuum pump mainly has two types: single-stage water ring vacuum pump and single-stage rotary vane vacuum pump.

2BE1 series single stage water ring vacuum pump

I. product overview
2be1 type direct water ring vacuum pump is used to pump or compress air and other non-corrosive, insoluble in water, do not contain solid particles of gas, in order to form a vacuum and pressure in the closed container, inhaled gas allowed to mix with a small amount of liquid.

Ii. Application:
2be1 type direct water ring vacuum pump is widely used in machinery, petroleum, chemical, pharmaceutical, food and other industries and other fields, especially suitable for large water pump.

Product display

2be1 Single stage vacuum pump

Technical parameters

Model Speed

(Driving mode)

Shaft power Motor power Ultimate

vacuum

Max. capacity Weight (excl.

motor)

r/min KW 380V hpa M³/hr M³/min kg
2BE1-102 1450 (direct)

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 1450 (direct)

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 1450 (direct)

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 1450 (direct)

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
2BE1-202 980 (direct)

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
2BE1-203 980 (direct)

790 (V-belt)

880 (V-belt)

1100 (V-belt)

1170 (V-belt)

1300 (V-belt)

29.5

21.2

24.8

34

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
2BE1-252 740 (direct)

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

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)

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
2BE1-303 740 (direct)

590 (direct)

466 (V-belt)

530 (V-belt)

583 (V-belt)

660 (V-belt)

740 (V-belt)

98

65.5

48

58

64

79.8

96

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
2BE1-305 740 (direct)

590 (direct)

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
2BE1-353 590 (direct)

390 (V-belt)

425 (V-belt)

464 (V-belt)

530 (V-belt)

560 (V-belt)

620 (V-belt)

660 (V-belt)

121

63

72

85

95

110

133

152

Y355L2-10-160

Y280S-4-75

Y280M-4-90

Y315S-4-110

Y315M-4-110

Y315L1-4-132

Y315L1-4-160

Y315L2-4-185

33hpa

(-0.097MPa)

5300

3580

3700

4100

4620

5000

5500

5850

88.3

59.7

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)

136

75

80.8

95

113

136

182

Y355L2-10-160

Y280M-4-90

Y280-4-90

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
2BE1-403 330 (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
2BE1-405 330 (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

Installation dimensions

2be1 Single stage vacuum pump installation dimensions

 

Single stage rotary vane vacuum pump working principle

When the rotor rotates in the stator, the volume of the suction space increases gradually and the pumped air bathes the suction space. At the same time the volume of the exhaust space is gradually reduced, the previous cycle has been inhaled gas compression, when the gas pressure is high enough, that is, greater than the oil gravity and the sum of the elastic force of the valve, is pumped gas top exhaust valve, through the oil layer by the exhaust pipe.

Structure and working principle of single stage rotary vane vacuum pump

The extraction process of single stage rotary vane vacuum pump

Several typical positions of rotary vane vacuum pump in the working process:

(1) the rotor blade 1 is in a vertical position and coincides with the fixed tangential point 4 of the rotor and stator, and the suction process has not yet started.

(2) when the rotor 1 turns from point A to A certain Angle, the inspiration space will gradually increase, and the gas will enter the inspiration space through the air inlet from the extracted air.

(3) when blade 1 reaches the horizontal position, blade 2 seals the air inlet, and the gas no longer enters the inspiratory space, and the inspiratory capacity reaches the maximum.

(4) as the rotor continues to rotate, the gas enclosed between the rotor 1 and 2 is compressed and the pressure keeps increasing. When the pressure exceeds a certain value, the gas pushes the exhaust valve and is discharged from the exhaust pipe.

(5) the exhaust ends and is restored to the first process, only the I and 2 rotating plates exchange a position.

After the exhaust in accordance with the above process repeat. Thus each rotor plays two roles: to make the pump chamber from the air intake intake gas, compressed gas has been sucked in, so that it through the exhaust valve exhaust. When the rotor rotates once, the rotor 1 and 2 breathe in the primary gas and discharge the primary gas respectively. Therefore, when the rotor rotates once, two inspirations and two exhausts are completed.

The vacuum degree of single-stage pump is worse than that of double-stage rotary vane vacuum pump. Partial pressure of residual gas is 5×10-1-1pa, and total pressure (the sum of partial pressure of residual gas and residual steam) is 5Pa.

Product display

Single stage rotary vane vacuum pump

Technical parameters

Model Pump speed(m3/h) Motor Power(KW) Inlet Diam (inch) Rotary speed(rpm) Oil Capacity(L) G.W(kg) NoisedB (A) Dimensions(mm)
50HZ 60HZ
SV-010 10 12 0.37 (3ph)0.55 (1ph) G1/2 1400 0.5 20 64 405*253*210
SV-020 20 24 0.75 (3ph)0.90 (1ph) G1/2 2800 0.5 20 64 405*253*210
SV-025 25 30 0.75 (3ph)0.90 (1ph) G1/2 2800 0.5 22 64 405*253*210
SV-040 40 48 1.5 (3ph)2.2 (1ph) G11/4 1400 1.0 50 67 660*300*270
SV-063 63 75 2.2 G11/4 1400 2.0 83 68 695*420*295
SV-100 100 120 3.0 G11/4 1400 2.0 87 72 735*420*295
SV-160 160 192 4.0 G2 1400 4.5 152 74 805*520*410
SV-200 200 240 5.5 G2 1400 4.5 159 76 825*520*410
SV-250 250 300 7.5 G2 1400 7.0 230 76 1000*550*410
SV-300 300 360 7.5 G2 1400 7.0 236 76 1200*550*410
SV-630 630 750 15.0 DN100 960 35 620 75 1630*1300*980
SV-750 750 900 18.5 DN100 1150 35 640 76 1630*1300*980

Installation dimensions

Single stage rotary vane vacuum pump installation dimensions

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