China Professional 3rb Ring Blower Vacuum Pump for Wastewater Treatment vacuum pump

Product Description


Model Power Voltage Current Airflow Vaccum Compress Noise Weight
  kW V A m3/h mbar mbar dB(A) Kg
3HB  550-2AAT57 7.5 350-450Δ/610-725Y 15.0Δ/8.7Y 480 -450 370 70 126
8.6 400-500Δ/690-725Y 15.1Δ/8.8Y 580 -370 280 74

Product list for all 3HB series: 

Model Power Voltage Current Airflow Vaccum Compress Noise Weight
  kW V A m3/h mbar mbar dB(A) Kg
3HB 350-1AAT16 2.2 200-260Δ/350-450Y 8.1Δ/4.6Y 315 -190 170 64 45
2.55 230-290Δ/400-500Y 8.0Δ/4.6Y 370 -150 130 68
3HB 350-1AAT26 3 200-260Δ/350-450Y 11.4Δ/6.5Y 315 -290 270 65 50
3.45 230-290Δ/400-500Y 10.8Δ/6.2Y 370 -250 220 69
3HB 350-1AAT37 4 350-450Δ/610-725Y 8.4Δ/4.8Y 315 -350 390 65 62
4.6 400-500Δ/690-725Y 8.2Δ/4.7Y 370 -370 340 69
3HB 350-1AAT47 5.5 350-450Δ/610-725Y 11.1Δ/6.4Y 315 -350 500 65 74
6.3 400-500Δ/690-725Y 11.0Δ/6.4Y 370 -390 510 69
3HB 350-2AAT26 3 200-260Δ/350-450Y 11.4Δ/6.5Y 320 -230 190 68 68
3.45 230-290Δ/400-500Y 10.8Δ/6.2Y 380 -150 120 71
3HB 350-2AAT37 4 350-450Δ/610-725Y 8.4Δ/4.8Y 320 -350 310 69 79
4.6 400-500Δ/690-725Y 8.2Δ/4.7Y 380 -280 230 72
3HB 350-2AAT47 5.5 350-450Δ/610-725Y 11.1Δ/6.4Y 320 -530 480 71 90
6.3 400-500Δ/690-725Y 11.0Δ/6.4Y 380 -480 390 74
3HB 350-2AAT57 7.5 350-450Δ/610-725Y 15.0Δ/8.7Y 320 -530 700 71 97
8.6 400-500Δ/690-725Y 15.1Δ/8.8Y 380 -580 610 74
3HB  350-2AAT67 11 350-450Δ/610-725Y 22.0Δ/12.7Y 320 -530 870 72 120
12.6 400-500Δ/690-725Y 22.0Δ/12.9Y 380 -580 930 76
3HB  350-3AAT37 4 350-450Δ/610-725Y 8.4Δ/4.8Y 320 -300 250 69 82
4.6 400-500Δ/690-725Y 8.2Δ/4.7Y 380 -200 150 72
3HB  350-3AAT47 5.5 350-450Δ/610-725Y 11.1Δ/6.4Y 320 -490 410 71 93
6.3 400-500Δ/690-725Y 11.1Δ/6.4Y 380 -410 300 74
3HB  350-3AAT57 7.5 350-450Δ/610-725Y 15.0Δ/8.7Y 320 -680 620 71 100
8.6 400-500Δ/690-725Y 15.1Δ/8.8Y 380 -650 510 74
3HB  350-3AAT67 11 350-450Δ/610-725Y 22.0Δ/12.7Y 320 -680 1571 72 120
12.6 400-500Δ/690-725Y 22.0Δ/12.9Y 380 -650 880 76
3HB  350-3AAT77 15 350-450Δ/610-725Y 30.5Δ/17.3Y 320 -680 1571 72 136
17.3 400-500Δ/690-725Y 29.5Δ17.0Y 380 -650 1050 76
3HB  550-1AAT26 3 200-260Δ/350-400Y 11.4Δ/6.5Y 480 -130 120 69 66
3.45 230-290Δ/400-450Y 10.8Δ/6.2Y 565 -70 60 74
3HB  550-1AAT37 4 350-450Δ/610-725Y 8.4Δ/4.8Y 480 -230 200 69 78
4.6 400-500Δ/690-725Y 8.2Δ/4.7Y 565 -170 140 74
3HB  550-1AAT47 5.5 350-450Δ/610-725Y 11.1Δ/6.4Y 480 -380 330 69 88
6.3 400-500Δ/690-725Y 11.0Δ/6.4Y 565 -310 260 85
3HB  550-1AAT57 7.5 350-450Δ/610-725Y 15.0Δ/8.7Y 480 -380 500 69 96
8.6 400-500Δ/690-725Y 15.1Δ/8.8Y 565 -410 440 85
3HB  550-2AAT47 5.5 350-450Δ/610-725Y 11.1Δ/6.4Y 480 -270 220 70 118
6.3 400-500Δ/690-725Y 11.0Δ/6.4Y 580 -180 130 74
3HB  550-2AAT57 7.5 350-450Δ/610-725Y 15.0Δ/8.7Y 480 -450 370 70 126
8.6 400-500Δ/690-725Y 15.1Δ/8.8Y 580 -370 280 74
3HB  550-2AAT67 11 350-450Δ/610-725Y 22.0Δ/12.7Y 480 -530 630 70 145
12.6 400-500Δ/690-725Y 22.0Δ/12.9Y 580 -540 530 74
3HB  550-2AAT77 15 350-450Δ/610-725Y 30.5Δ/17.3Y 480 -530 890 70 156
17.3 400-500Δ/690-725Y 29.5Δ17.0Y 580 -540 870 74
3HB  550-3AAT57 7.5 350-450Δ/610-725Y 15.0Δ/8.7Y 480 -380 280 71 142
8.6 400-500Δ/690-725Y 15.1Δ/8.8Y 580 -240 140 77
3HB  550-3AAT67 11 350-450Δ/610-725Y 22.0Δ/12.7Y 480 -610 540 71 167
12.6 400-500Δ/690-725Y 22.0Δ/12.9Y 580 -590 390 77
3HB  550-3AAT77 15 350-450Δ/610-725Y 30.5Δ/17.3Y 480 -610 830 71 180
17.3 400-500Δ/690-725Y 29.5Δ17.0Y 580 -590 680 77
3HB  550-3AAT87 18.5 350-450Δ/610-725Y 37.0Δ/21.0Y 480 -610 1571 71 195
21.3 400-500Δ/690-725Y 36.5Δ21.0Y 580 -590 870 77

The advantages of CHINAMFG blowers: 
1. 100% oil free, Insulation class is F, Protection class is IP55.
2. Dual frequency 50HZ and 60HZ are available
3. Made of die cast aluminum ADC12.
4. Dual usage: compressor and vacuum (suction and blow).
5. Virtually maintenance free, with sealed long life bearings.
6. Smart design and low noise
7. ATEX explosion proof motor is available for all the blowers. 
8. IE2 and IE3 motor are available for some blowers. 
9. Good quality and competitive prices. 
10. Quick delivery date. 

Application of CHINAMFG blowers/pumps:
Our blowers are widely used in the following applications.
1. CHINAMFG (fish and prawn pong aeration)
2. Waste water treatment, sewage treatment system.
3. Pneumatic conveying systems.
4. Pharmaceutical machinery
5. Garment machinery
6. Wood working machinery
7. Plastic machinery
8. Printing machinery
9. Textile machinery
10. Packaging machinery
11. Garment machinery
12. Paper processing.
13. Industrial cleaning machinery
14. Air knives
15. Dental suction equipment / dental vacuum pump

Our workshop: 

Our Exhibition: 

Our certification: (CE, ISO & CCC)

The instruction for CHINAMFG blowers:
The team of CHINAMFG has focused on this kind of blower for more than 15 years. We only produce side channel blowers, it’s also called ring blower, regenerative blower, air blower, vacuum pump etc.. We also supply belt drive blowers and all the parts for this kind of blower. The range of the power for our blowers is from 0.12kw to 30kw. 

Each production procedure is operated in our own workshop, tooling making, die casting, stamping, high precision machining, assembling and automatic spraying, so we could control the quality, cost and delivery date better.


After-sales Service: Yes
Warranty: One Year
Oil or Not: Oil Free
Structure: Rotary Vacuum Pump
Exhauster Method: Entrapment Vacuum Pump
Vacuum Degree: Vacuum
US$ 1200/Piece
1 Piece(Min.Order)




vacuum pump

Can Vacuum Pumps Be Used for Vacuum Furnaces?

Yes, vacuum pumps can be used for vacuum furnaces. Here’s a detailed explanation:

Vacuum furnaces are specialized heating systems used in various industries for heat treatment processes that require controlled environments with low or no atmospheric pressure. Vacuum pumps play a crucial role in creating and maintaining the vacuum conditions necessary for the operation of vacuum furnaces.

Here are some key points regarding the use of vacuum pumps in vacuum furnaces:

1. Vacuum Creation: Vacuum pumps are used to evacuate the furnace chamber, creating a low-pressure or near-vacuum environment. This is essential for the heat treatment processes carried out in the furnace, as it helps eliminate oxygen and other reactive gases, preventing oxidation or unwanted chemical reactions with the heated materials.

2. Pressure Control: Vacuum pumps provide the means to control and maintain the desired pressure levels within the furnace chamber during the heat treatment process. Precise pressure control is necessary to achieve the desired metallurgical and material property changes during processes such as annealing, brazing, sintering, and hardening.

3. Contamination Prevention: By removing gases and impurities from the furnace chamber, vacuum pumps help prevent contamination of the heated materials. This is particularly important in applications where cleanliness and purity of the processed materials are critical, such as in the aerospace, automotive, and medical industries.

4. Rapid Cooling: Some vacuum furnace systems incorporate rapid cooling capabilities, known as quenching. Vacuum pumps assist in facilitating the rapid cooling process by removing the heat generated during quenching, ensuring efficient cooling and minimizing distortion or other unwanted effects on the treated materials.

5. Process Flexibility: Vacuum pumps provide flexibility in the type of heat treatment processes that can be performed in vacuum furnaces. Different heat treatment techniques, such as vacuum annealing, vacuum brazing, or vacuum carburizing, require specific pressure levels and atmospheric conditions that can be achieved and maintained with the use of vacuum pumps.

6. Vacuum Pump Types: Different types of vacuum pumps can be used in vacuum furnaces, depending on the specific requirements of the heat treatment process. Commonly used vacuum pump technologies include oil-sealed rotary vane pumps, dry screw pumps, diffusion pumps, and cryogenic pumps. The choice of vacuum pump depends on factors such as required vacuum level, pumping speed, reliability, and compatibility with the process gases.

7. Maintenance and Monitoring: Proper maintenance and monitoring of vacuum pumps are essential to ensure their optimal performance and reliability. Regular inspections, lubrication, and replacement of consumables (such as oil or filters) are necessary to maintain the efficiency and longevity of the vacuum pump system.

8. Safety Considerations: Operating vacuum furnaces with vacuum pumps requires adherence to safety protocols. This includes proper handling of potentially hazardous gases or chemicals used in the heat treatment processes, as well as following safety guidelines for operating and maintaining the vacuum pump system.

Overall, vacuum pumps are integral components of vacuum furnaces, enabling the creation and maintenance of the required vacuum conditions for precise and controlled heat treatment processes. They contribute to the quality, consistency, and efficiency of the heat treatment operations performed in vacuum furnaces across a wide range of industries.

vacuum pump

What Is the Difference Between Dry and Wet Vacuum Pumps?

Dry and wet vacuum pumps are two distinct types of pumps that differ in their operating principles and applications. Here’s a detailed explanation of the differences between them:

Dry Vacuum Pumps:

Dry vacuum pumps operate without the use of any lubricating fluid or sealing water in the pumping chamber. They rely on non-contact mechanisms to create a vacuum. Some common types of dry vacuum pumps include:

1. Rotary Vane Pumps: Rotary vane pumps consist of a rotor with vanes that slide in and out of slots in the rotor. The rotation of the rotor creates chambers that expand and contract, allowing the gas to be pumped. The vanes and the housing are designed to create a seal, preventing gas from flowing back into the pump. Rotary vane pumps are commonly used in laboratories, medical applications, and industrial processes where a medium vacuum level is required.

2. Dry Screw Pumps: Dry screw pumps use two or more intermeshing screws to compress and transport gas. As the screws rotate, the gas is trapped between the threads and transported from the suction side to the discharge side. Dry screw pumps are known for their high pumping speeds, low noise levels, and ability to handle various gases. They are used in applications such as semiconductor manufacturing, chemical processing, and vacuum distillation.

3. Claw Pumps: Claw pumps use two rotors with claw-shaped lobes that rotate in opposite directions. The rotation creates a series of expanding and contracting chambers, enabling gas capture and pumping. Claw pumps are known for their oil-free operation, high pumping speeds, and suitability for handling dry and clean gases. They are commonly used in applications such as automotive manufacturing, food packaging, and environmental technology.

Wet Vacuum Pumps:

Wet vacuum pumps, also known as liquid ring pumps, operate by using a liquid, typically water, to create a seal and generate a vacuum. The liquid ring serves as both the sealing medium and the working fluid. Wet vacuum pumps are commonly used in applications where a higher level of vacuum is required or when handling corrosive gases. Some key features of wet vacuum pumps include:

1. Liquid Ring Pumps: Liquid ring pumps feature an impeller with blades that rotate eccentrically within a cylindrical casing. As the impeller rotates, the liquid forms a ring against the casing due to centrifugal force. The liquid ring creates a seal, and as the impeller spins, the volume of the gas chamber decreases, leading to the compression and discharge of gas. Liquid ring pumps are known for their ability to handle wet and corrosive gases, making them suitable for applications such as chemical processing, oil refining, and wastewater treatment.

2. Water Jet Pumps: Water jet pumps utilize a jet of high-velocity water to create a vacuum. The water jet entrains gases, and the mixture is then separated in a venturi section, where the water is recirculated, and the gases are discharged. Water jet pumps are commonly used in laboratories and applications where a moderate vacuum level is required.

The main differences between dry and wet vacuum pumps can be summarized as follows:

1. Operating Principle: Dry vacuum pumps operate without the need for any sealing fluid, while wet vacuum pumps utilize a liquid ring or water as a sealing and working medium.

2. Lubrication: Dry vacuum pumps do not require lubrication since there is no contact between moving parts, whereas wet vacuum pumps require the presence of a liquid for sealing and lubrication.

3. Applications: Dry vacuum pumps are suitable for applications where a medium vacuum level is required, and oil-free operation is desired. They are commonly used in laboratories, medical settings, and various industrial processes. Wet vacuum pumps, on the other hand, are used when a higher vacuum level is needed or when handling corrosive gases. They find applications in chemical processing, oil refining, and wastewater treatment, among others.

It’s important to note that the selection of a vacuum pump depends on specific requirements such as desired vacuum level, gas compatibility, operating conditions, and the nature of the application.

In summary, the primary distinction between dry and wet vacuum pumps lies in their operating principles, lubrication requirements, and applications. Dry vacuum pumps operate without any lubricating fluid, while wet vacuum pumps rely on a liquid ring or water for sealing and lubrication. The choice between dry and wet vacuum pumps depends on the specific needs of the application and the desired vacuum level.

vacuum pump

Are There Different Types of Vacuum Pumps Available?

Yes, there are various types of vacuum pumps available, each designed to suit specific applications and operating principles. Here’s a detailed explanation:

Vacuum pumps are classified based on their operating principles, mechanisms, and the type of vacuum they can generate. Some common types of vacuum pumps include:

1. Rotary Vane Vacuum Pumps:

– Description: Rotary vane pumps are positive displacement pumps that use rotating vanes to create a vacuum. The vanes slide in and out of slots in the pump rotor, trapping and compressing gas to create suction and generate a vacuum.

– Applications: Rotary vane vacuum pumps are widely used in applications requiring moderate vacuum levels, such as laboratory vacuum systems, packaging, refrigeration, and air conditioning.

2. Diaphragm Vacuum Pumps:

– Description: Diaphragm pumps use a flexible diaphragm that moves up and down to create a vacuum. The diaphragm separates the vacuum chamber from the driving mechanism, preventing contamination and oil-free operation.

– Applications: Diaphragm vacuum pumps are commonly used in laboratories, medical equipment, analysis instruments, and applications where oil-free or chemical-resistant vacuum is required.

3. Scroll Vacuum Pumps:

– Description: Scroll pumps have two spiral-shaped scrolls—one fixed and one orbiting—which create a series of moving crescent-shaped gas pockets. As the scrolls move, gas is continuously trapped and compressed, resulting in a vacuum.

– Applications: Scroll vacuum pumps are suitable for applications requiring a clean and dry vacuum, such as analytical instruments, vacuum drying, and vacuum coating.

4. Piston Vacuum Pumps:

– Description: Piston pumps use reciprocating pistons to create a vacuum by compressing gas and then releasing it through valves. They can achieve high vacuum levels but may require lubrication.

– Applications: Piston vacuum pumps are used in applications requiring high vacuum levels, such as vacuum furnaces, freeze drying, and semiconductor manufacturing.

5. Turbo Molecular Vacuum Pumps:

– Description: Turbo pumps use high-speed rotating blades or impellers to create a molecular flow, continuously pumping gas molecules out of the system. They typically require a backing pump to operate.

– Applications: Turbo molecular pumps are used in high vacuum applications, such as semiconductor fabrication, research laboratories, and mass spectrometry.

6. Diffusion Vacuum Pumps:

– Description: Diffusion pumps rely on the diffusion of gas molecules and their subsequent removal by a high-speed jet of vapor. They operate at high vacuum levels and require a backing pump.

– Applications: Diffusion pumps are commonly used in applications requiring high vacuum levels, such as vacuum metallurgy, space simulation chambers, and particle accelerators.

7. Cryogenic Vacuum Pumps:

– Description: Cryogenic pumps use extremely low temperatures to condense and capture gas molecules, creating a vacuum. They rely on cryogenic fluids, such as liquid nitrogen or helium, for operation.

– Applications: Cryogenic vacuum pumps are used in ultra-high vacuum applications, such as particle physics research, material science, and fusion reactors.

These are just a few examples of the different types of vacuum pumps available. Each type has its advantages, limitations, and suitability for specific applications. The choice of vacuum pump depends on factors like required vacuum level, gas compatibility, reliability, cost, and the specific needs of the application.

China Professional 3rb Ring Blower Vacuum Pump for Wastewater Treatment   vacuum pump	China Professional 3rb Ring Blower Vacuum Pump for Wastewater Treatment   vacuum pump
editor by CX 2023-10-26

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