China Hot selling High Efficiency Liquid Ring Vacuum Pump with Great quality

Product Description

2BV Series Liquid Ring Vacuum Pump

Product Description

2BV series Liquid Ring Vacuum Pump is CHINAMFG pump that motor shaft and pump shaft is coaxial mounted. Shaft seal adopt mechanical seal with the advantages of simple structure, convenient installation, oil free and safety. 2BV series Liquid Ring Vacuum Pump is suitable for extracting gas and wet vapor, the suction pressure could achieve 33 mbar (A)(vacuum degree 97%).2BV Liquid Ring Vacuum Pump should be protected by connecting cavitation protection piping when it is working under the condition that the suction pressure is lower than 80mbar long term. The maximum suction pressure could achieve 10mbar if the pump equipped with atmospheric ejector, the ejector could installed on the inlet of the pump used as a compressor and the maximum available pressure is 0.26Mpa(A).2BV series liquid ring vacuum pumps and compressors are widely used in petroleum, chemical, pharmaceutical, food, sugar and other industries. The pump is not easy to explode when compressing and pumping flammable and explosive gases, because the compression process of the gas is isothermal during the working process, so it is more widely used.


1. Motor and pump are connected by coupling directly is space-saving and easy installation.

2. All pumps adopt foreign brand mechanical seal.

3. All pumps are equipped with cavitation protection pipe interface, opening the protection pipe interface could eliminate cavitation sound under guarantee the maximizing suction effect and protect the pump when the pump working under the ultimate pressure.

4. Ductile iron impeller has high strength and durability, and improves the corrosion resistance of 2BV Liquid Ring Vacuum Pump. Such as the wet parts using stainless steel material, it can work in a more serious environment.

5. Unique flexible design on discharge bore doesn’t produce over compression to ensure the best efficiency in the performance range.

6. All bearings are CHINAMFG or CHINAMFG foreign brand

7. All flexible seals of PTFE that could extend the working life under the serious condition.


Liquid ring vacuum pumps are especially suitable for wet process and rough vacuum process technology, such as: chemical industry, petroleum production and processing, steam turbine condenser vacuuming, plastics industry, paper industry, food industry and many other industrial applications.


Water Ring Vacuum Pump


1. Water ring vacuum pumps and compressors, It is usually used to aspirate gases that

don’ t contain CHINAMFG particle, non-dissolves in water. No-corrosiveness in order to form vacuum and pres- sure in closed container.

2. Through changed structure material, it is too used to aspirate corroisive gases or act corrosive liquid as the working liquid.

3. This series pumps are used single- stage and single function structure with simple structure,

4. This pump with gas and water separator, many places set up aspirating and exhausting holes, pump cover set up exhausting valves, check and repair window. The gap between impeller and distributing plate are adjusted by gland of 2 ends of locating bearing. Installation and use are convenient, operations are sample , the maintenance are convenient.


It’s widely used in paper-making,chemical industry, petrification, light industry,pharmacy,foods, metalhlrgy, building, electrical equipment, coal cleaning, metal concentration,fertilizer,etc.


1. convenient maintenance,reliable running,

2. high efficiency and energy saving

3. could suit to serious operation mode such as a big water discharge load impact change,etc.


1. Welding impellers are used, blade are machining by primary punch mould with rational moulded lines.

2. All hub are machined, so solved fundamentally the issue of dynamic balance.

3. Impeller and pump shaft are machined by head- as- semble interface fit with reliable performance, stable running.

4. Impeller are heat treated after welded, the blade have excellent tenacity to be assured. Impact resistance and bending resistance to suit to serious operating mode of load impact change.


Please ask this pump details and price , the price will be more competitive.


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After-sales Service: Yes
Warranty: 12 Months
Transport Package: Wooden Box
Specification: As request
Trademark: Huatao
Origin: China


vacuum pump

What Is the Impact of Altitude on Vacuum Pump Performance?

The performance of vacuum pumps can be influenced by the altitude at which they are operated. Here’s a detailed explanation:

Altitude refers to the elevation or height above sea level. As the altitude increases, the atmospheric pressure decreases. This decrease in atmospheric pressure can have several effects on the performance of vacuum pumps:

1. Reduced Suction Capacity: Vacuum pumps rely on the pressure differential between the suction side and the discharge side to create a vacuum. At higher altitudes, where the atmospheric pressure is lower, the pressure differential available for the pump to work against is reduced. This can result in a decrease in the suction capacity of the vacuum pump, meaning it may not be able to achieve the same level of vacuum as it would at lower altitudes.

2. Lower Ultimate Vacuum Level: The ultimate vacuum level, which represents the lowest pressure that a vacuum pump can achieve, is also affected by altitude. As the atmospheric pressure decreases with increasing altitude, the ultimate vacuum level that can be attained by a vacuum pump is limited. The pump may struggle to reach the same level of vacuum as it would at sea level or lower altitudes.

3. Pumping Speed: Pumping speed is a measure of how quickly a vacuum pump can remove gases from a system. At higher altitudes, the reduced atmospheric pressure can lead to a decrease in pumping speed. This means that the vacuum pump may take longer to evacuate a chamber or system to the desired vacuum level.

4. Increased Power Consumption: To compensate for the decreased pressure differential and achieve the desired vacuum level, a vacuum pump operating at higher altitudes may require higher power consumption. The pump needs to work harder to overcome the lower atmospheric pressure and maintain the necessary suction capacity. This increased power consumption can impact energy efficiency and operating costs.

5. Efficiency and Performance Variations: Different types of vacuum pumps may exhibit varying degrees of sensitivity to altitude. Oil-sealed rotary vane pumps, for example, may experience more significant performance variations compared to dry pumps or other pump technologies. The design and operating principles of the vacuum pump can influence its ability to maintain performance at higher altitudes.

It’s important to note that vacuum pump manufacturers typically provide specifications and performance curves for their pumps based on standardized conditions, often at or near sea level. When operating a vacuum pump at higher altitudes, it is advisable to consult the manufacturer’s guidelines and consider any altitude-related limitations or adjustments that may be necessary.

In summary, the altitude at which a vacuum pump operates can have an impact on its performance. The reduced atmospheric pressure at higher altitudes can result in decreased suction capacity, lower ultimate vacuum levels, reduced pumping speed, and potentially increased power consumption. Understanding these effects is crucial for selecting and operating vacuum pumps effectively in different altitude environments.

vacuum pump

How Do Vacuum Pumps Contribute to Energy Savings?

Vacuum pumps play a significant role in energy savings in various industries and applications. Here’s a detailed explanation:

Vacuum pumps contribute to energy savings through several mechanisms and efficiencies. Some of the key ways in which vacuum pumps help conserve energy are:

1. Improved Process Efficiency: Vacuum pumps are often used to remove gases and create low-pressure or vacuum conditions in industrial processes. By reducing the pressure, vacuum pumps enable the removal of unwanted gases or vapors, improving the efficiency of the process. For example, in distillation or evaporation processes, vacuum pumps help lower the boiling points of liquids, allowing them to evaporate or distill at lower temperatures. This results in energy savings as less heat is required to achieve the desired separation or concentration.

2. Reduced Energy Consumption: Vacuum pumps are designed to operate efficiently and consume less energy compared to other types of equipment that perform similar functions. Modern vacuum pump designs incorporate advanced technologies, such as variable speed drives, energy-efficient motors, and optimized control systems. These features allow vacuum pumps to adjust their operation based on demand, reducing energy consumption during periods of lower process requirements. By consuming less energy, vacuum pumps contribute to overall energy savings in industrial operations.

3. Leak Detection and Reduction: Vacuum pumps are often used in leak detection processes to identify and locate leaks in systems or equipment. By creating a vacuum or low-pressure environment, vacuum pumps can assess the integrity of a system and identify any sources of leakage. Detecting and repairing leaks promptly helps prevent energy wastage associated with the loss of pressurized fluids or gases. By addressing leaks, vacuum pumps assist in reducing energy losses and improving the overall energy efficiency of the system.

4. Energy Recovery Systems: In some applications, vacuum pumps can be integrated into energy recovery systems. For instance, in certain manufacturing processes, the exhaust gases from vacuum pumps may contain heat or have the potential for energy recovery. By utilizing heat exchangers or other heat recovery systems, the thermal energy from the exhaust gases can be captured and reused to preheat incoming fluids or provide heat to other parts of the process. This energy recovery approach further enhances the overall energy efficiency by utilizing waste heat that would otherwise be lost.

5. System Optimization and Control: Vacuum pumps are often integrated into centralized vacuum systems that serve multiple processes or equipment. These systems allow for better control, monitoring, and optimization of the vacuum generation and distribution. By centralizing the vacuum production and employing intelligent control strategies, energy consumption can be optimized based on the specific process requirements. This ensures that vacuum pumps operate at the most efficient levels, resulting in energy savings.

6. Maintenance and Service: Proper maintenance and regular servicing of vacuum pumps are essential for their optimal performance and energy efficiency. Routine maintenance includes tasks such as cleaning, lubrication, and inspection of pump components. Well-maintained pumps operate more efficiently, reducing energy consumption. Additionally, prompt repair of any faulty parts or addressing performance issues helps maintain the pump’s efficiency and prevents energy waste.

In summary, vacuum pumps contribute to energy savings through improved process efficiency, reduced energy consumption, leak detection and reduction, integration with energy recovery systems, system optimization and control, as well as proper maintenance and service. By utilizing vacuum pumps efficiently and effectively, industries can minimize energy waste, optimize energy usage, and achieve significant energy savings in various applications and processes.

vacuum pump

How Are Vacuum Pumps Different from Air Compressors?

Vacuum pumps and air compressors are both mechanical devices used to manipulate air and gas, but they serve opposite purposes. Here’s a detailed explanation of their differences:

1. Function:

– Vacuum Pumps: Vacuum pumps are designed to remove or reduce the pressure within a closed system, creating a vacuum or low-pressure environment. They extract air or gas from a chamber, creating suction or negative pressure.

– Air Compressors: Air compressors, on the other hand, are used to increase the pressure of air or gas. They take in ambient air or gas and compress it, resulting in higher pressure and a compacted volume of air or gas.

2. Pressure Range:

– Vacuum Pumps: Vacuum pumps are capable of generating pressures below atmospheric pressure or absolute zero pressure. The pressure range typically extends into the negative range, expressed in units such as torr or pascal.

– Air Compressors: Air compressors, on the contrary, operate in the positive pressure range. They increase the pressure above atmospheric pressure, typically measured in units like pounds per square inch (psi) or bar.

3. Applications:

– Vacuum Pumps: Vacuum pumps have various applications where the creation of a vacuum or low-pressure environment is required. They are used in processes such as vacuum distillation, vacuum drying, vacuum packaging, and vacuum filtration. They are also essential in scientific research, semiconductor manufacturing, medical suction devices, and many other industries.

– Air Compressors: Air compressors find applications where compressed air or gas at high pressure is needed. They are used in pneumatic tools, manufacturing processes, air conditioning systems, power generation, and inflating tires. Compressed air is versatile and can be employed in numerous industrial and commercial applications.

4. Design and Mechanism:

– Vacuum Pumps: Vacuum pumps are designed to create a vacuum by removing air or gas from a closed system. They may use mechanisms such as positive displacement, entrapment, or momentum transfer to achieve the desired vacuum level. Examples of vacuum pump types include rotary vane pumps, diaphragm pumps, and diffusion pumps.

– Air Compressors: Air compressors are engineered to compress air or gas, increasing its pressure and decreasing its volume. They use mechanisms like reciprocating pistons, rotary screws, or centrifugal force to compress the air or gas. Common types of air compressors include reciprocating compressors, rotary screw compressors, and centrifugal compressors.

5. Direction of Air/Gas Flow:

– Vacuum Pumps: Vacuum pumps draw air or gas into the pump and then expel it from the system, creating a vacuum within the chamber or system being evacuated.

– Air Compressors: Air compressors take in ambient air or gas and compress it, increasing its pressure and storing it in a tank or delivering it directly to the desired application.

While vacuum pumps and air compressors have different functions and operate under distinct pressure ranges, they are both vital in various industries and applications. Vacuum pumps create and maintain a vacuum or low-pressure environment, while air compressors compress air or gas to higher pressures for different uses and processes.

China Hot selling High Efficiency Liquid Ring Vacuum Pump   with Great quality China Hot selling High Efficiency Liquid Ring Vacuum Pump   with Great quality
editor by CX 2024-03-20


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