Model NO.: 2BEA-252
Pump Rotary Speed: 565/590/660/740/820/880rpm
Motor Power: 30/30/37/45/55/75kw
Displacement: Refer to Form
Weight: 910kg
Certification: CE,ISO9001
Fuel: Gasoline
Standard or Nonstandard: Standard
Delivery Time: Based on Factory Production Schedule
Sea Port: Ningbo/Shanghai
Trademark: DVE
Transport Package: Neutral Wooden Case
Specification: CE Mark, Spare Parts Of High Level
Origin: Zhejiang, China
HS Code: 8414100090
Model NO.: 2BEA-252
Pump Rotary Speed: 565/590/660/740/820/880rpm
Motor Power: 30/30/37/45/55/75kw
Displacement: Refer to Form
Weight: 910kg
Certification: CE,ISO9001
Fuel: Gasoline
Standard or Nonstandard: Standard
Delivery Time: Based on Factory Production Schedule
Sea Port: Ningbo/Shanghai
Trademark: DVE
Transport Package: Neutral Wooden Case
Specification: CE Mark, Spare Parts Of High Level
Origin: Zhejiang, China
HS Code: 8414100090

Products Name: 2BEA Water Ring Vacuum Pump


Energy Saving 2bea Water Ring Vacuum Pump High Efficiency
 

WORKING THEORY

2 BEA series water ring vacuum pumps and compressors, is high efficiency and energy saving products which based on years of scientific research and production experience, combining the international advanced technology, research and development. It is typically used for suction the gas which is not containing solid particles, insoluble in water and no corrosive, so as to form a vacuum and pressure in an airtight container.

By changing the structure of the material, can also be used for pumping corrosive gases or use corrosive liquid fluid as working fluid.

 
Energy Saving 2bea Water Ring Vacuum Pump High Efficiency

 

ADVANTAGES

This series pump adopt the structure of single stage single function, has the advantages of simple structure, convenient maintenance, reliable operation, the advantages of high efficiency and energy saving, and can adapt to large displacement, such as condition of shock wave load.
Model Min Suction Absolute Pressure Rotary Speed
(RPM)
Motor Power
(kW)
Displacement (m3/min) Weight
(KG)
60hPa 100hPa 200hPa 400hPa
Dry Air Saturated Air Dry Air Saturated Air Dry Air Saturated Air Dry Air Saturated Air
2BEA-202 33 790,
880,
980,
1100,
1170
18.5,
18.5,
22,
22,
30
6.6
7.8
8.4
9.6
10.2
9.3
10.2
11.9
12.9
13.6
8.8
9.7
11.4
12.4
13.1
9
10.3
11.6
12.7
13.6
9.2
10.6
11.6
13.6
13.9
9.7
11.1
12.8
14.1
15.1
9.5
10.9
12.2
13.8
14.5
9.8
12.2
12.6
14.2
14.8
450
2BEA-203 33 790,
880,
980,
1100,
1170
30
30
37
45
45
8.25
9.7
11.6
13.5
14.4
13.5
14.4
16.4
19
20.3
11.1
12.7
14.5
16.4
17.4
13.5
15.4
17.7
19.7
21.1
13.4
15.3
17.3
19.2
20.1
14.5
16.6
18.7
20.9
21.8
14.3
16.1
18
20
21
14.6
16.4
18.4
20.4
21.4
510
2BEA-252 33 565
590
660
740
820
880
30
30
37
45
55
75
10.2
11.6
15.5
17.7
19.4
21.7
15.3
16.4
22.4
24.9
28.5
30.5
14.1
15.3
20.7
22.6
26.3
28.7
16.6
17.5
22.1
23.9
28.2
29.8
19.2
20.1
24.2
26.4
29.5
31.1
20.9
21.8
26.5
28.7
29.8
31.8
20.1
21.1
25.2
27.5
30.3
32.6
20.5
21.5
25.7
28.3
30.8
33.3
910
2BEA-253 33 565
590
660
740
820
880
45
45
55
75
90
90

14.1
15.1
20.1
24.3
27.9
30.2
 
20
21.8
28.4
34.3
39.3
42.6
19.5
20.4
25.8
30.3
34.2
36.7
23.8
24.8
31.3
36.8
41.5
44.7
25.6
26.7
31.9
36.5
40.6
43.5
28.1
29
34.6
39.6
44.1
47.2
28.3
29.5
34.3
38.3
42.9
45.8
28.8
30.1
35.1
39.6
43.7
46.7
1040
2BEA-303 33 472
520
530
590
660
740
75
75
75
75
90
110
24.3
27.6
30.8
35.8
40.5
42.5
34
38.5
42.8
49.9
57.5
60
31.3
34.2
37.1
42.6
48.7
51.8
38.5
41.5
45
51.6
59
62.7
38.9
40.3
43.3
48.8
55
58.3
42.5
44.3
47.3
53.3
60
63.5
41
42.5
45.7
50.3
57
61.6
41.8
43.5
46.6
51.3
58
62.8
1500
2BEA-353 33 372
420
464
490
500
530
590
75
90
110
110
132
132
160
26.5
35.8
43.6
46.5
46.6
49.5
56.7
37.4
50.6
61.5
65.6
65.8
69.9
80
38.3
45.3
52.8
55.7
56.3
60.1
68.4
46.4
54.9
63.9
67.6
68.2
72.8
82.8
49
53.8
61
63
65
68.5
77
53.5
58.6
66.5
68.7
70.9
74.7
84
53.8
57.2
63.7
66.4
67.6
71.5
80.2
54.9
58.4
65
67.7
69
73
81
2000

Note: the above performance data, based on the inlet temperature is 20 ° C, the water temperature of 15 ° C.1013 mbar exhaust pressure conditions.
 

APLICATIONS

Widely used in papermaking, chemical, petrochemical, light industry, pharmaceutical, food, building materials, electrical appliances, coal washing and  mineral dressing industry, fertilizer, etc. 

In the coal industry, it can especially pump highly flammable and explosive gas, such as mash gas, methane, can design installation of ground gas drainage station, can form a complete set of mobile gas drainage system.


Energy Saving 2bea Water Ring Vacuum Pump High Efficiency

APLICATIONS

Widely used in papermaking, chemical, petrochemical, light industry, pharmaceutical, food, building materials, electrical appliances, coal washing and  mineral dressing industry, fertilizer, etc. In the coal industry, it can especially pump highly flammable and explosive gas, such as mash gas, methane, can design installation of ground gas drainage station, can form a complete set of mobile gas drainage system.

 
MORE PRODUCTS FOR YOUR REFERENCE

Kindly note more than 300 different pump designs for your choice, and all gained CE certificates.

 

DESCRIPTION
2SK series two-stage liquid ring vacuum pumps can work well like two sets of SK series water ring vacuum pump. Due to SK series vacuum pumps only reach the maximum vacuum of-700mmHg, to meet the high vacuum and the large pumping speed under high vacuum, China developed the 2SK series water ring vacuum pump in 80s in the 20th century. 


ADVANTAGE
1. Compared with SK water vacuum pump, It gets high vacuum and pumping speed etc...
2. Simple structure and easy maintenance. 
3. The mostly working medium is water and low maintenance costs. 
4. The pump is widely use in many areas and suction water vapor, flammable, explosive and various gases contain a small amount of dust and liquid. 
5. The pump can works in the harsh condition

FEATURES
1. Series SK, 2SK Water Ring Vacuum Pumps can be used to exhaust ordinary gases as well as condensable gases(such as water vapor). Because they have the features of isothermal compression, they can exhaust flammable and explosive gases. When the pump made up of anti-corrosion material is selected, it can be used for exhausting corrosive gases too. 

2. Series 2YK Liquid Ring Vacuum Pumps have the features of higher vacuum and better applicability. The different types of gases can be pumped with the selected suitable working media. Therefore, they can be applied in wider range. 

3. The pumps run smoothly with low noise and consumption. The energy-saving is 30 percent comparing with the Water Jet and the Water Vapor Jet Pumps. 

PARAMETER   
Model Displacement
(m3/min)
Ultimate 
Pressure
Motor Power
(kW)
Rotating Speed
(rpm)
Water Supply
(L/min)
In&Outlet Dimensions
(mm)
Weight
(KG)
HPa Torr
SK-0.5B 0.5 47 35 1.5 2900 8 25 45
SK-0.8 0.8 47 35 2.2 2900 10 40 60
SK-1.5 1.5 47 35 4 2900 15 40 75
SK-3 3 80 60 5.5 1450 25 50 153
SK-6 6 80 60 11 1450 35 50 210
SK-12 12 80 60 22 980 70 100 600
SK-12B 12 80 60 18.5 980 60 100 450
SK-25 25 80 60 45 980 70 100 900
SK-30 30 80 60 55 980 75 100 1200
SK-42 42 80 60 75 740 100 100 1500
2SK-2B 2 40 30 5.5 1450 20 50 185
2YK-2B 2 6.6 5 5.5 1450 20 50 185
2SK-3 3 40 30 7.5 1450 25 50 320
2YK-3 3 6.6 5 7.5 1450 25 50 320
2SK-6B 6 33 30 11 1450 35 50 370
2YK-6B 6 6.6 5 11 1450 35 50 370
2SK-12 12 33 25 22 980 70 80 850
2YK-12 12 6.6 5 22 980 70 80 850
2SK-25 25 33 25 55, 45 980 60-110 100 926
2YK-25 25 6.6 5 55, 45 980 60-110 100 926
 

APPLICATION
It can be applied to the vacuum drying, vacuum degassing, vacuum concentration, vacuum evaporation, vacuum impregnation process in chemical, pharmaceutical, metallurgy, food, medicine, textile, papermaking, electrical industry ( electronic industrial field) and so on. It can compose a vacuum system together with Roots Vacuum Pump and atmospheric Jet pump to achieve high vacuum, high efficiency, low power consumption. 

CURVE

PRINCIPLE DRAWING


Regular Selection for Water(Liquid)Ring Vacuum Pump

1, Based on the vacuum value
(1)If the pump is operated for long time with the inlet pressure range between1.3×104~1×105PA (between 100 and 760 Torr), please choose series SK Water Ring Vacuum Pump. 
(2)If the pump is operated for long time with the inlet pressure range between5×103~1.3×104PA(between40 and 100 Torr), please choose series 2SK Water Ring Vacuum Pump. 
(3)If the pump is operated for long time with the inlet pressure range between1×103~1.3×104PA(between8 and 100 Torr), please choose series 2YK Liquid Ring Vacuum Pump. 

2, Working Media
There are four principles to choose working media(I. E. Ring liquids); 
(1) Lower saturated steam pressure
(2) Lower viscosity
(3) Stable physical & chemical features; No chemical reaction with the pumped gas; No corrosion to the pump; No pollution to the environment. 
(4) Economy
If the water is selected as the working medium, the best temperature of supply water should be lower than or equal to 15 °C; The highest one should not be higher than 40°C. While the transformer oil or other low viscosity and saturated vapor pressure industrial oils are as the working media, the general supply temperature should not higher than 40°C and the working media temperature inside the pump chamber should not be higher than 60C, when the liquid with lower boiling point is selected as the working media under some special circumstances, the cooling unit must be equipped to cool down the working media in order to ensure that the max temperature is 30ºC-50ºC, lower than the boiling point. For the closed circulated system of working media, the liquid storage unit and cooler must be equipped, and the gas-liquid separator must be installed at outlet. The mechanical seal should be used for dynamic seal of the shaft. 


3, Choose the dynamic seal of the shaft: 
Choose the packing seal in general occasion; Choose the mechanical seal when the pump is used in no leak occasion. 

4, Choose the material of the part that the gas passed: 
(1) For the non anti-corrosion pump, the shaft is made of 45#steel or 40Cr, other parts are made of cast Iron or brass; 
(2) For the anti-corrosion pump, the parts that the gas passed, should be made of stainless steel 304 and 306, or other material suitable for the respectively corrosive gas, or the parts should be put with anti-corrosion coating. 

5, The motor should be selected based on pumping pressure. 
If the pump is used for vacuuming while transferring gas, the pressure of pump outlet exceeds the standard atmosphere pressure. 
When the outlet pressure exceeds 0.15MPa, the special double-stages liquid ring compressor should be chosen and not the vacuum pump refitted. Tthe power of the equipped motor should be increased obviously. And the special gas-liquid separator and auto-drain unit should be equipped too. 
When the outlet pressure is below 0.15MPa, it can use the vacuum pump refitted as compressor. The power of the equipped motor should be increased properly. 

6, Composition methods of the water ring vacuum pump system
The opening circulation system should be used if the working liquid in the outlet need not be circulated or partially circulated. 
The closed circulation system should be used if the working liquid in the outlet must be circulated. 



2BVA SERIES WATER RING VACUUM PUMP

WORKING THEORY
2BVA series vacuum pump suitable for pumping gas and water vapor, inspiratory pressure can reach 33 mbar definitely pressure (vacuum degree 97%). 
 When the vacuum pump long-term work under the condition of pressure lower than 80 mbar,  gas corrosion protection tube shall be connected to the pump to protect the pump.
 Equiped with air injector, inspiratory pressure can reach 10 mbar. Injector can be directly installed on the vacuum pump. 
 When used as compressor, the biggest pressure can be 0.26 mbar (pabs).
 
PARAMETER FORM
Model Motor Power Max Pumping Capacity Ultimate Pressure Working Liquid Flow Noise Rotary Speed Weight Ultimate Pressure with Primary Jet Pump
2BVA-2060 0.81KW 27m³/h 33hpa 0.12m³/h 62dB(A) 2880r/min 20KG 10hpa
2BVA-2061 1.45KW 52m³/h 33hpa 0.12m³/h 65dB(A) 2880r/min 22KG 10hpa
2BVA-2070 2.35KW 80m³/h 33hpa 0.15m³/h 66dB(A) 2880r/min 31KG 10hpa
2BVA-2071 3.85KW 110m³/h 33hpa 0.25m³/h 72dB(A) 2880r/min 42KG 10hpa
2BVA-5110 4KW 165m³/h 33hpa 0.4m³/h 63dB(A) 1450r/min 78KG 10hpa
2BVA-5111 5.5KW 230m³/h 33hpa 0.5m³/h 68dB(A) 1450r/min 100KG 10hpa
2BVA-5121 7.5KW 280m³/h 33hpa 0.6m³/h 69dB(A) 1450r/min 145KG 10hpa
2BVA-5131 11KW 400m³/h 33hpa 0.9m³/h 73dB(A) 1450r/min 165KG 10hpa
2BVA-5161 15KW 500m³/h 33hpa 1.2m³/h 74dB(A) 980r/min 252KG 10hpa 
 
ADVANTAGES
1. Coaxial pump and direct connection design, saving space, easy to install;
2. Adopt mechanical seal as standard configuration, to eliminate leakage, easy maintenance;
3. Smooth operation, noise can be as low as 62 decibels;
4. Uniform anti-corrosion design, bronze impeller improves the corrosion resistance of the pump,
5. Stainless steel material is more suitable for the more demanding work environment;
6. Unique flexible vent design, won't  produce over compression, to ensure the best efficiency of 2BVA within its performance range.

Products Name: 2BEA Water Ring Vacuum Pump


Energy Saving 2bea Water Ring Vacuum Pump High Efficiency
 

WORKING THEORY

2 BEA series water ring vacuum pumps and compressors, is high efficiency and energy saving products which based on years of scientific research and production experience, combining the international advanced technology, research and development. It is typically used for suction the gas which is not containing solid particles, insoluble in water and no corrosive, so as to form a vacuum and pressure in an airtight container.

By changing the structure of the material, can also be used for pumping corrosive gases or use corrosive liquid fluid as working fluid.

 
Energy Saving 2bea Water Ring Vacuum Pump High Efficiency

 

ADVANTAGES

This series pump adopt the structure of single stage single function, has the advantages of simple structure, convenient maintenance, reliable operation, the advantages of high efficiency and energy saving, and can adapt to large displacement, such as condition of shock wave load.
Model Min Suction Absolute Pressure Rotary Speed
(RPM)
Motor Power
(kW)
Displacement (m3/min) Weight
(KG)
60hPa 100hPa 200hPa 400hPa
Dry Air Saturated Air Dry Air Saturated Air Dry Air Saturated Air Dry Air Saturated Air
2BEA-202 33 790,
880,
980,
1100,
1170
18.5,
18.5,
22,
22,
30
6.6
7.8
8.4
9.6
10.2
9.3
10.2
11.9
12.9
13.6
8.8
9.7
11.4
12.4
13.1
9
10.3
11.6
12.7
13.6
9.2
10.6
11.6
13.6
13.9
9.7
11.1
12.8
14.1
15.1
9.5
10.9
12.2
13.8
14.5
9.8
12.2
12.6
14.2
14.8
450
2BEA-203 33 790,
880,
980,
1100,
1170
30
30
37
45
45
8.25
9.7
11.6
13.5
14.4
13.5
14.4
16.4
19
20.3
11.1
12.7
14.5
16.4
17.4
13.5
15.4
17.7
19.7
21.1
13.4
15.3
17.3
19.2
20.1
14.5
16.6
18.7
20.9
21.8
14.3
16.1
18
20
21
14.6
16.4
18.4
20.4
21.4
510
2BEA-252 33 565
590
660
740
820
880
30
30
37
45
55
75
10.2
11.6
15.5
17.7
19.4
21.7
15.3
16.4
22.4
24.9
28.5
30.5
14.1
15.3
20.7
22.6
26.3
28.7
16.6
17.5
22.1
23.9
28.2
29.8
19.2
20.1
24.2
26.4
29.5
31.1
20.9
21.8
26.5
28.7
29.8
31.8
20.1
21.1
25.2
27.5
30.3
32.6
20.5
21.5
25.7
28.3
30.8
33.3
910
2BEA-253 33 565
590
660
740
820
880
45
45
55
75
90
90

14.1
15.1
20.1
24.3
27.9
30.2
 
20
21.8
28.4
34.3
39.3
42.6
19.5
20.4
25.8
30.3
34.2
36.7
23.8
24.8
31.3
36.8
41.5
44.7
25.6
26.7
31.9
36.5
40.6
43.5
28.1
29
34.6
39.6
44.1
47.2
28.3
29.5
34.3
38.3
42.9
45.8
28.8
30.1
35.1
39.6
43.7
46.7
1040
2BEA-303 33 472
520
530
590
660
740
75
75
75
75
90
110
24.3
27.6
30.8
35.8
40.5
42.5
34
38.5
42.8
49.9
57.5
60
31.3
34.2
37.1
42.6
48.7
51.8
38.5
41.5
45
51.6
59
62.7
38.9
40.3
43.3
48.8
55
58.3
42.5
44.3
47.3
53.3
60
63.5
41
42.5
45.7
50.3
57
61.6
41.8
43.5
46.6
51.3
58
62.8
1500
2BEA-353 33 372
420
464
490
500
530
590
75
90
110
110
132
132
160
26.5
35.8
43.6
46.5
46.6
49.5
56.7
37.4
50.6
61.5
65.6
65.8
69.9
80
38.3
45.3
52.8
55.7
56.3
60.1
68.4
46.4
54.9
63.9
67.6
68.2
72.8
82.8
49
53.8
61
63
65
68.5
77
53.5
58.6
66.5
68.7
70.9
74.7
84
53.8
57.2
63.7
66.4
67.6
71.5
80.2
54.9
58.4
65
67.7
69
73
81
2000

Note: the above performance data, based on the inlet temperature is 20 ° C, the water temperature of 15 ° C.1013 mbar exhaust pressure conditions.
 

APLICATIONS

Widely used in papermaking, chemical, petrochemical, light industry, pharmaceutical, food, building materials, electrical appliances, coal washing and  mineral dressing industry, fertilizer, etc. 

In the coal industry, it can especially pump highly flammable and explosive gas, such as mash gas, methane, can design installation of ground gas drainage station, can form a complete set of mobile gas drainage system.


Energy Saving 2bea Water Ring Vacuum Pump High Efficiency

APLICATIONS

Widely used in papermaking, chemical, petrochemical, light industry, pharmaceutical, food, building materials, electrical appliances, coal washing and  mineral dressing industry, fertilizer, etc. In the coal industry, it can especially pump highly flammable and explosive gas, such as mash gas, methane, can design installation of ground gas drainage station, can form a complete set of mobile gas drainage system.

 
MORE PRODUCTS FOR YOUR REFERENCE

Kindly note more than 300 different pump designs for your choice, and all gained CE certificates.

 

DESCRIPTION
2SK series two-stage liquid ring vacuum pumps can work well like two sets of SK series water ring vacuum pump. Due to SK series vacuum pumps only reach the maximum vacuum of-700mmHg, to meet the high vacuum and the large pumping speed under high vacuum, China developed the 2SK series water ring vacuum pump in 80s in the 20th century. 


ADVANTAGE
1. Compared with SK water vacuum pump, It gets high vacuum and pumping speed etc...
2. Simple structure and easy maintenance. 
3. The mostly working medium is water and low maintenance costs. 
4. The pump is widely use in many areas and suction water vapor, flammable, explosive and various gases contain a small amount of dust and liquid. 
5. The pump can works in the harsh condition

FEATURES
1. Series SK, 2SK Water Ring Vacuum Pumps can be used to exhaust ordinary gases as well as condensable gases(such as water vapor). Because they have the features of isothermal compression, they can exhaust flammable and explosive gases. When the pump made up of anti-corrosion material is selected, it can be used for exhausting corrosive gases too. 

2. Series 2YK Liquid Ring Vacuum Pumps have the features of higher vacuum and better applicability. The different types of gases can be pumped with the selected suitable working media. Therefore, they can be applied in wider range. 

3. The pumps run smoothly with low noise and consumption. The energy-saving is 30 percent comparing with the Water Jet and the Water Vapor Jet Pumps. 

PARAMETER   
Model Displacement
(m3/min)
Ultimate 
Pressure
Motor Power
(kW)
Rotating Speed
(rpm)
Water Supply
(L/min)
In&Outlet Dimensions
(mm)
Weight
(KG)
HPa Torr
SK-0.5B 0.5 47 35 1.5 2900 8 25 45
SK-0.8 0.8 47 35 2.2 2900 10 40 60
SK-1.5 1.5 47 35 4 2900 15 40 75
SK-3 3 80 60 5.5 1450 25 50 153
SK-6 6 80 60 11 1450 35 50 210
SK-12 12 80 60 22 980 70 100 600
SK-12B 12 80 60 18.5 980 60 100 450
SK-25 25 80 60 45 980 70 100 900
SK-30 30 80 60 55 980 75 100 1200
SK-42 42 80 60 75 740 100 100 1500
2SK-2B 2 40 30 5.5 1450 20 50 185
2YK-2B 2 6.6 5 5.5 1450 20 50 185
2SK-3 3 40 30 7.5 1450 25 50 320
2YK-3 3 6.6 5 7.5 1450 25 50 320
2SK-6B 6 33 30 11 1450 35 50 370
2YK-6B 6 6.6 5 11 1450 35 50 370
2SK-12 12 33 25 22 980 70 80 850
2YK-12 12 6.6 5 22 980 70 80 850
2SK-25 25 33 25 55, 45 980 60-110 100 926
2YK-25 25 6.6 5 55, 45 980 60-110 100 926
 

APPLICATION
It can be applied to the vacuum drying, vacuum degassing, vacuum concentration, vacuum evaporation, vacuum impregnation process in chemical, pharmaceutical, metallurgy, food, medicine, textile, papermaking, electrical industry ( electronic industrial field) and so on. It can compose a vacuum system together with Roots Vacuum Pump and atmospheric Jet pump to achieve high vacuum, high efficiency, low power consumption. 

CURVE

PRINCIPLE DRAWING


Regular Selection for Water(Liquid)Ring Vacuum Pump

1, Based on the vacuum value
(1)If the pump is operated for long time with the inlet pressure range between1.3×104~1×105PA (between 100 and 760 Torr), please choose series SK Water Ring Vacuum Pump. 
(2)If the pump is operated for long time with the inlet pressure range between5×103~1.3×104PA(between40 and 100 Torr), please choose series 2SK Water Ring Vacuum Pump. 
(3)If the pump is operated for long time with the inlet pressure range between1×103~1.3×104PA(between8 and 100 Torr), please choose series 2YK Liquid Ring Vacuum Pump. 

2, Working Media
There are four principles to choose working media(I. E. Ring liquids); 
(1) Lower saturated steam pressure
(2) Lower viscosity
(3) Stable physical & chemical features; No chemical reaction with the pumped gas; No corrosion to the pump; No pollution to the environment. 
(4) Economy
If the water is selected as the working medium, the best temperature of supply water should be lower than or equal to 15 °C; The highest one should not be higher than 40°C. While the transformer oil or other low viscosity and saturated vapor pressure industrial oils are as the working media, the general supply temperature should not higher than 40°C and the working media temperature inside the pump chamber should not be higher than 60C, when the liquid with lower boiling point is selected as the working media under some special circumstances, the cooling unit must be equipped to cool down the working media in order to ensure that the max temperature is 30ºC-50ºC, lower than the boiling point. For the closed circulated system of working media, the liquid storage unit and cooler must be equipped, and the gas-liquid separator must be installed at outlet. The mechanical seal should be used for dynamic seal of the shaft. 


3, Choose the dynamic seal of the shaft: 
Choose the packing seal in general occasion; Choose the mechanical seal when the pump is used in no leak occasion. 

4, Choose the material of the part that the gas passed: 
(1) For the non anti-corrosion pump, the shaft is made of 45#steel or 40Cr, other parts are made of cast Iron or brass; 
(2) For the anti-corrosion pump, the parts that the gas passed, should be made of stainless steel 304 and 306, or other material suitable for the respectively corrosive gas, or the parts should be put with anti-corrosion coating. 

5, The motor should be selected based on pumping pressure. 
If the pump is used for vacuuming while transferring gas, the pressure of pump outlet exceeds the standard atmosphere pressure. 
When the outlet pressure exceeds 0.15MPa, the special double-stages liquid ring compressor should be chosen and not the vacuum pump refitted. Tthe power of the equipped motor should be increased obviously. And the special gas-liquid separator and auto-drain unit should be equipped too. 
When the outlet pressure is below 0.15MPa, it can use the vacuum pump refitted as compressor. The power of the equipped motor should be increased properly. 

6, Composition methods of the water ring vacuum pump system
The opening circulation system should be used if the working liquid in the outlet need not be circulated or partially circulated. 
The closed circulation system should be used if the working liquid in the outlet must be circulated. 



2BVA SERIES WATER RING VACUUM PUMP

WORKING THEORY
2BVA series vacuum pump suitable for pumping gas and water vapor, inspiratory pressure can reach 33 mbar definitely pressure (vacuum degree 97%). 
 When the vacuum pump long-term work under the condition of pressure lower than 80 mbar,  gas corrosion protection tube shall be connected to the pump to protect the pump.
 Equiped with air injector, inspiratory pressure can reach 10 mbar. Injector can be directly installed on the vacuum pump. 
 When used as compressor, the biggest pressure can be 0.26 mbar (pabs).
 
PARAMETER FORM
Pvc Resin

Polyvinyl Chloride or PVC Resin SG3, SG5, SG7 and SG8 are homopolymers made by suspension polymerization. PVC resin is white powder form thermoplastic resin and has great versatility for making plastic products.

SG3 is for films, hoses, leathers, wire cables and other general purpose soft products.

SG5 is for pipes, fittings, panels, calendaring, injection, moulding, profiles, and sandals.

SG7 / SG8 is for bottles, sheets, calendaring, rigid injection and moulding pipes.

Pvc Resin,Pvc Suspension Resin,Polyvinylchloride Resin,Pvc Resin Suspension Grade

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