2BE4 Series Liquid Ring Vacuum Pump for Large Industrial Applications

The 2BE4 series liquid ring vacuum pump is designed for industrial processes that require high pumping capacity and reliable vacuum performance. With multiple models available, it can meet different requirements for gas handling, process vacuum, and large-scale industrial production.

The series covers suction capacities from 4,850 to 38,100 m³/h, making it suitable for many demanding industrial applications. From chemical processing to power plant desulfurization systems, the 2BE4 series provides flexible options for building industrial vacuum systems.

1. Key Features of the 2BE4 Series Vacuum Pump

High Suction Capacity for Large Industrial Systems

The 2BE4 series offers several models, including 2BE4 400, 2BE4 420, 2BE4 500, 2BE4 520, 2BE4 600, 2BE4 620, 2BE4 670, and 2BE4 720.

The suction capacity varies by model and operating speed. The largest model, 2BE4 720, can reach a maximum listed capacity of 38,100 m³/h, or 635 m³/min. This high capacity makes it a suitable option for evaluating large industrial vacuum requirements.

Stable Operation with a Liquid Ring Design

The pump uses a rotating liquid ring to create working chambers inside the pump casing. As these chambers change in volume, gas is drawn in, compressed, and discharged.

This operating principle makes liquid ring vacuum pumps useful in applications involving water vapor and certain condensable gases. Actual suitability depends on the gas composition, working liquid, temperature, and operating conditions.

The working liquid also helps manage heat generated during compression. With a properly designed liquid supply and circulation system, the pump can support continuous industrial operation.

2. Wide Applications Across Industrial Sectors

Chemical and Petrochemical Industries

Chemical production often requires vacuum for evaporation, drying, gas extraction, and other process operations. The 2BE4 series can be considered for these applications when the required capacity and pressure conditions match the pump's performance range.

For processes involving corrosive gases, solvents, or special working liquids, material compatibility and system design should be checked before selecting a model.

Power Plant Desulfurization Systems

In power plants, vacuum equipment can be used in flue gas desulfurization processes, including vacuum filtration and related material-handling operations.

Large models such as the 2BE4 720 can be evaluated for systems with high gas-handling requirements. The final selection should be based on the actual operating pressure, required flow rate, and process conditions.

Mining, Paper, and Industrial Filtration

The 2BE4 series can also be considered for mining-related vacuum systems, paper production, industrial filtration, and dewatering processes.

For these applications, engineers need to evaluate the required vacuum level, operating cycle, moisture content, and expected load. Correct sizing helps avoid selecting a pump that is either too small for the process or unnecessarily large.

3. Main Specifications and Model Selection

Important Technical Parameters

The main specifications of the 2BE4 series include:

Model range: 2BE4 400 to 2BE4 720

Suction capacity: 4,850–38,100 m³/h across the listed models and speeds

Listed ultimate absolute pressure: 150 mbar

Motor power: 110–900 kW, depending on the model and operating speed

Drive options: V-belt or gearbox drive, depending on the model

Bare pump weight with separator: 3,275–15,700 kg

These values describe the supplied model range. Actual performance depends on operating speed and working conditions, so buyers should confirm the detailed performance curve before ordering.

How to Choose the Right Model

Choosing a suitable liquid ring vacuum pump requires more than checking the maximum suction capacity. Buyers should consider several important factors:

Required suction capacity: Calculate the gas flow needed under actual operating conditions.

Operating pressure: Confirm the required absolute pressure and the pump's performance at that point.

Gas composition: Check whether the gas contains moisture, condensable vapors, or corrosive components.

Working liquid temperature: Temperature can affect vacuum performance and operating stability.

Drive and motor selection: Match the motor power and drive arrangement to the selected model and operating speed.

System configuration: Consider whether the installation requires a gas-liquid separator, heat exchanger, working liquid circulation system, or other auxiliary equipment.

A complete evaluation helps ensure that the pump matches the process instead of relying on catalogue maximum values alone.

4. Build a Vacuum System That Fits Your Process

The 2BE4 series is suitable for projects where high-capacity vacuum generation is an important part of the production process. Depending on the application, the pump can be integrated with a motor, separator, heat exchanger, piping, and working liquid circulation equipment.

A properly designed system can help maintain stable operation and simplify routine maintenance. Installation conditions, cooling requirements, pipe resistance, and working liquid management should all be considered during system design.

Greentech International (Zhangqiu) Co., Ltd. provides industrial vacuum pump solutions for different process requirements. By sharing your required suction capacity, operating pressure, gas composition, working temperature, and application details, you can receive a more suitable model recommendation.

Looking for a 2BE4 series liquid ring vacuum pump for your project? Contact Greentech to discuss your operating conditions and find the right vacuum pump configuration for your industrial system.

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