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The 2BE1S series water ring vacuum pump is an advanced version of the single-stage 2BE1 series. Designed for two-stage compression, it provides stable pumping performance in high vacuum ranges and maintains a high degree of vacuum across a wide range of pumping rates. Compared to single-stage pumps, this model offers improved efficiency by 35-40% and reduced energy consumption, making it ideal for applications where the inlet pressure drops below 20 kPa.
Working Principle
The 2BE1S two-stage water ring vacuum pump operates similarly to the single-stage 2BE1 pump. When the impeller rotates, a water ring forms inside the casing due to centrifugal force. Water fills the spaces between the blades, and as the impeller rotates, the volume between the blades changes periodically, enabling suction, compression, and discharge processes. The two-stage compression allows gas from the first stage to be further compressed in the second stage before being discharged, enhancing overall performance.
Features
- Limit pressure up to 2 kPa
- Working pressure range: 5–20 kPa
- Wide range of specifications (200–7500 m³/h)
- Available in stainless steel, duplex steel, titanium, Hastelloy, and other materials
- Reliable locking system and mechanical seals with optional flushing programs
- Standard anti-cavitation device
- Energy-efficient and highly reliable
- Precision castings and high-standard components
- Suitable for industries such as chemical, food, pharmaceutical, textile, papermaking, metallurgy, and more
Technical Parameters
Model
2BE1S102
2BE1S103
2BE1S152
2BE1S153
2BE1S1202
2BE1S203
2BE1S252
2BE1S253
Extreme Pressure (kPa)
2
2
2
2
2
2
2
2
Pumping Rate (m³/h)
235
340
465
600
760
1130
1700
2450
RPM
1450
1450
1460
1460
980
980
740
740
Transmission
Coupling Drive
Power (kW)
11
15
18.5
22
30
45
55
75
Water Supply (m³/h)
1.3
1.7
2
2.2
2.4
3.1
5.2
6.2
Suction/Discharge Diameter (mm)
50
50
65
65
100
100
125
125
Water Connection
G3/4"
G3/4"
G3/4"
G3/4"
G3/4"
G3/4"
G1"
G1"
Weight (kg)
350
400
530
560
1040
1340
2010
2500
2be1s Series Double-Stage Water Ring Vacuum Pump
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This product is widely used in industrial vacuum applications such as drying, concentration, evaporation, distillation, dehydration, degassing, and filtration. It is especially effective when used in conjunction with Roots vacuum pumps to achieve better performance in high vacuum environments.
Model No.: Vertical Type
Trademark: Flourish
Transport Package: Polywood Case
Specification: Customizable
Origin: China
HS Code: 8421299090
Introduction