China Custom Paper Pulp Water Ring Vacuum Pump for Paper Making Machine vacuum pump oil

Product Description

Product Parameters


SK Centrifugal Pump

SK type high-efficiency non-clogging non-leakage pulp pump is a new generation of pulp pump products. It has obvious advantages such as high efficiency, good anti-clogging performance, no leakage during operation, and convenient installation and maintenance. It is widely used in the transportation of pulp media in paper and pulp enterprises.

Structural features:
    1. The pump has a rear-opening structure, so there is no need to disassemble the pipeline during maintenance.
    2. The inlet and outlet flanges of the pump are designed according to 1.6MPa pressure.
    3. The impeller adopts three-blade or six-blade open impeller, which has high efficiency and does not require axial thrust compensation, is easy to maintain, and has low blockage rate.
    4. The pump shaft is supported by a combination of imported  cylindrical roller bearings and radial thrust ball bearings (angular contact ball bearings). Cylindrical roller bearings are installed at the pump end, and radial thrust ball bearings are installed face-to-face at the rotating end.
    5. Shaft seals mainly include pumping ring plus single end mechanical seal, packing seal, single end mechanical seal, tandem mechanical seal, double end mechanical seal, combined seal of pumping ring and single end mechanical seal, and dynamic seal. .
    6. The impeller adopts lost wax precision casting and performs dynamic balance verification
    7. There are 4 kinds of materials: cast iron, cast steel, ordinary stainless steel and duplex stainless steel.

Low Pulse Pulp Pump

SJ type sizing pump, also known as low pulse pump. It is an ideal replacement product designed according to the actual situation of the paper industry in view of the large flow and low-head mixed-flow pumps widely used in general papermaking mills. The pulp is unstable and inconvenient to disassemble and assemble.

The pump has the advantages of high efficiency, stable pulp, long service life and convenient maintenance. The bearing is balanced in force at both ends of the pump body, and the pump casing is opened in the middle and can be repaired after opening the cover.

It is suitable for the matching of medium and high-speed paper machine pulp supply system, the use temperature is below 80 ºC, and the concentration is below 1% for pulp transportation.

Note: The pump looks from the coupling to the pump. The pump rotates counterclockwise. The inlet of the pump is on the right and the outlet is on the left. If you need to change the position of the inlet and outlet, it must be mentioned when ordering.

Vacuum Pulp Pump

Water ring vacuum pumps are suitable for pumping air and other non-corrosive, water-insoluble, and CHINAMFG particles-free gases in order to obtain a higher vacuum in a closed container. It has the characteristics of high vacuum degree, high pumping speed in high vacuum area, compact structure, stable work and convenient maintenance.

Water ring vacuum pumps are suitable for working conditions where the suction pressure is lower than -0.08MPa. The working vacuum range is -0.03—0.08MPa.

1. Compared with SK series single-stage water ring vacuum pump, it has the characteristics of high vacuum degree and high pumping speed in high vacuum area. At the same pumping rate, the shaft power is higher than 2BV and 2BE series water ring vacuum pumps.
2. Compact structure and convenient maintenance.
3. It can extract gas containing water vapor, flammable, explosive, a small amount of dust, and a small amount of liquid
4. It can work in a harsh environment.

Water Ring Vacuum Pump

Water-ring vacuum pump is a highly effective energy-saving product developed on the basis of the years’ scientific research results and production experience,by means of the energy-saving and consumption-reducing principle and combining the advanced know-how with the same products both at home and abroad.

This pump can be used either as a vacuum pump or an air compressor for the technological processes of vacuum filtering, vacuum water leading, vacuum feeding, vacuum vaporizing, vacuum concentrating, vacuum reversing, vacuum degassing, etc. And for pumping the gases which are not solved in water and contain no CHINAMFG grains in the petroleum, chemical, mechanic, medicine,food,dyeing,environmental protection.electronic etc., industrial sections. Besides, because the air compression inside of it iTs .isothermal, so the pump can also be used to pump combustible and explosive gases.

Centrifugal Fan Pump

S and SH pumps are single-stage double-suction, horizontal split centrifugal pumps, which are used to transport clean water and liquids with physical and chemical properties similar to water.

The maximum temperature of the liquid should not exceed 80°C, which is suitable for water supply and drainage of paper mills, mines, cities, and power stations, farmland drainage and irrigation, and various water conservancy projects.

The bearings of this type of pump are at both ends of the pump body, and the force is balanced during operation, so it has a long service life. The pump body is a center-open type, which can be repaired after opening the cover, which is very convenient.

     Note: The S-type pump looks from the coupling to the pump. The pump rotates clockwise. The water inlet of the pump is on the right and the water outlet is on the left. If you need to change the location of the import and export, it must be mentioned when ordering.

     Note: The SH type pump looks from the coupling to the pump. The water pump rotates counterclockwise. The water inlet of the pump is on the left and the water outlet is on the right. If you need to change the location of the import and export, you must mention it when ordering.

Middle Consistency Slurry Pump

This non-clogging pump is a new and energy-saving pulp pump. After actual use, it has the characteristics of high efficiency, no or less leakage, good anti-clogging performance, stable operation, high reliability, and compact structure.

Mainly reflected in the following aspects:

1. It adopts semi-open or full-open impeller, the clearance between the wear plate and the front side of the impeller is adjustable, and the shaft seal mainly adopts mechanical seal and selects high-precision bearings (D-level accuracy) and high-quality shaft materials.

2. Can be widely used in light industry and papermaking industries where the temperature is lower than 110C and the concentration is lower than 6%. It can also be used in industrial and urban water supply, drainage and other occasions.


Submersible slurry pump


The submersible slurry pump is a single-stage, single-suction, centrifugal, and vertical slurry pump. It is our company’s leading product. It is mainly suitable for the treatment of corrosive CHINAMFG particles in electric power, metallurgy, coal, building materials, chemical industries and other industries.

A new generation of high-efficiency and energy-saving single-stage, single-suction, centrifugal slurry pump for slurry. They are mainly suitable for processing concentrates and tailings in ore dressing plants, removing ash and slag from thermal power plants, conveying coal slime and heavy-medium coal preparation in coal preparation plants, and conveying CHINAMFG in coastal river sand mining operations. The maximum weight concentration of the slurry that can be processed is: 45% CHINAMFG and 60% ore slurry.

It is a single-stage, single-suction, vertical centrifugal slurry pump. This series of pumps adopts the internationally advanced solid-liquid two-phase flow theory and is designed according to the principle of minimum loss. The geometry of the flow-passing parts conforms to the flow state of the medium, reducing local and along-the-way hydraulic losses such as vortex and impact, thereby reducing the wear of the flow-passing parts, improving hydraulic efficiency, and reducing operating noise and vibration; this series of pumps The flow parts are made of high-hard alloy cast iron, and its material has high abrasion resistance, corrosion resistance, and impact resistance, thereby increasing its life.


We can supply all types of pumps for paper mills. Please contact us to get the inquiry.


Company Profile

ZheJiang CHINAMFG International Group established in 2002.We are a China Based engineering company and machinery supplier committed to offer complate solution and provide high-cost-performance equipments related to stock preparation and paper-making industry.Our head office is located in HangZhou, ZheJiang province. We have 15000 square CHINAMFG Factory Building. For years,we have insisted on taking customer’s value as our center and having strict quality-control and innovation in the whole process. With advantage technology and excellent equipment,we provide one-stop service from consultation,process design and optimization,manufacture,installation,commissing and personnel training and so on.At the same time,we can supply all kinds of stock preparation and paper making equipment and accessories.Besides,we can custom design according to customers’ requirements.

Our products have reliable quality and superior performance and have been exported to Poland,Greece,Turkey,Iran,India,Packistan,Bangladesh,Thailand,Indonesia,Philippines,Malaysia,Vietnam,Mexico,Guatemala,Costa

Rica,Columbia,Egypt etc.We have established long-term cooperation relationship with many paper mills and agent.

Honesty,cooperation and CHINAMFG are important to us.We insisted on serve our customers with high quality products,sincere service and

good reputation.We are appreciated for the long-term trust and favor from our customers.Hope we can cooperate sincerely and make

progress together with our new and old customer.



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After-sales Service: Provide Accessories, Video Instruction
Warranty: 1 Year
Certification: RoHS, ISO 9001:2000, ISO 9001:2008, CE
Surface Treatment: Spray-Paint
Manufacturing Process: Casting
Material: SS304/SS316/SS316L/Duplex Steel


vacuum pump

What Are the Advantages of Using Oil-Sealed Vacuum Pumps?

Oil-sealed vacuum pumps offer several advantages in various applications. Here’s a detailed explanation:

1. High Vacuum Performance: Oil-sealed vacuum pumps are known for their ability to achieve high levels of vacuum. They can create and maintain deep vacuum levels, making them suitable for applications that require a low-pressure environment. The use of oil as a sealing and lubricating medium helps in achieving efficient vacuum performance.

2. Wide Operating Range: Oil-sealed vacuum pumps have a wide operating range, allowing them to handle a broad spectrum of vacuum levels. They can operate effectively in both low-pressure and high-vacuum conditions, making them versatile for different applications across various industries.

3. Efficient and Reliable Operation: These pumps are known for their reliability and consistent performance. The oil-sealed design provides effective sealing, preventing air leakage and maintaining a stable vacuum level. They are designed to operate continuously for extended periods without significant performance degradation, making them suitable for continuous industrial processes.

4. Contamination Handling: Oil-sealed vacuum pumps are effective in handling certain types of contaminants that may be present in the process gases or air being evacuated. The oil acts as a barrier, trapping and absorbing certain particulates, moisture, and chemical vapors, preventing them from reaching the pump mechanism. This helps protect the pump internals from potential damage and contributes to the longevity of the pump.

5. Thermal Stability: The presence of oil in these pumps helps in dissipating heat generated during operation, contributing to their thermal stability. The oil absorbs and carries away heat, preventing excessive temperature rise within the pump. This thermal stability allows for consistent performance even during prolonged operation and helps protect the pump from overheating.

6. Noise Reduction: Oil-sealed vacuum pumps generally operate at lower noise levels compared to other types of vacuum pumps. The oil acts as a noise-damping medium, reducing the noise generated by the moving parts and the interaction of gases within the pump. This makes them suitable for applications where noise reduction is desired, such as laboratory environments or noise-sensitive industrial settings.

7. Versatility: Oil-sealed vacuum pumps are versatile and can handle a wide range of gases and vapors. They can effectively handle both condensable and non-condensable gases, making them suitable for diverse applications in industries such as chemical processing, pharmaceuticals, food processing, and research laboratories.

8. Cost-Effective: Oil-sealed vacuum pumps are often considered cost-effective options for many applications. They generally have a lower initial cost compared to some other types of high-vacuum pumps. Additionally, the maintenance and operating costs are relatively lower, making them an economical choice for industries that require reliable vacuum performance.

9. Simplicity and Ease of Maintenance: Oil-sealed vacuum pumps are relatively simple in design and easy to maintain. Routine maintenance typically involves monitoring oil levels, changing the oil periodically, and inspecting and replacing worn-out parts as necessary. The simplicity of maintenance procedures contributes to the overall cost-effectiveness and ease of operation.

10. Compatibility with Other Equipment: Oil-sealed vacuum pumps are compatible with various process equipment and systems. They can be easily integrated into existing setups or used in conjunction with other vacuum-related equipment, such as vacuum chambers, distillation systems, or industrial process equipment.

These advantages make oil-sealed vacuum pumps a popular choice in many industries where reliable, high-performance vacuum systems are required. However, it’s important to consider specific application requirements and consult with experts to determine the most suitable type of vacuum pump for a particular use case.

vacuum pump

Can Vacuum Pumps Be Used for Leak Detection?

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

Leak detection is a critical task in various industries, including manufacturing, automotive, aerospace, and HVAC. It involves identifying and locating leaks in a system or component that may result in the loss of fluids, gases, or pressure. Vacuum pumps can play a significant role in leak detection processes by creating a low-pressure environment and facilitating the detection of leaks through various methods.

Here are some ways in which vacuum pumps can be used for leak detection:

1. Vacuum Decay Method: The vacuum decay method is a common technique used for leak detection. It involves creating a vacuum in a sealed system or component using a vacuum pump and monitoring the pressure change over time. If there is a leak present, the pressure will gradually increase due to the ingress of air or gas. By measuring the rate of pressure rise, the location and size of the leak can be estimated. Vacuum pumps are used to evacuate the system and establish the initial vacuum required for the test.

2. Bubble Testing: Bubble testing is a simple and visual method for detecting leaks. In this method, the component or system being tested is pressurized with a gas, and then immersed in a liquid, typically soapy water. If there is a leak, the gas escaping from the component will form bubbles in the liquid, indicating the presence and location of the leak. Vacuum pumps can be used to create a pressure differential that forces gas out of the leak, making it easier to detect the bubbles.

3. Helium Leak Detection: Helium leak detection is a highly sensitive method used to locate extremely small leaks. Helium, being a small atom, can easily penetrate small openings and leaks. In this method, the system or component is pressurized with helium gas, and a vacuum pump is used to evacuate the surrounding area. A helium leak detector is then used to sniff or scan the area for the presence of helium, indicating the location of the leak. Vacuum pumps are essential for creating the low-pressure environment required for this method and ensuring accurate detection.

4. Pressure Change Testing: Vacuum pumps can also be used in pressure change testing for leak detection. This method involves pressurizing a system or component and then isolating it from the pressure source. The pressure is monitored over time, and any significant pressure drop indicates the presence of a leak. Vacuum pumps can be used to evacuate the system after pressurization, returning it to atmospheric pressure for comparison or retesting.

5. Mass Spectrometer Leak Detection: Mass spectrometer leak detection is a highly sensitive and precise method used to identify and quantify leaks. It involves introducing a tracer gas, usually helium, into the system or component being tested. A vacuum pump is used to evacuate the surrounding area, and a mass spectrometer is employed to analyze the gas samples for the presence of the tracer gas. This method allows for accurate detection and quantification of leaks down to very low levels. Vacuum pumps are crucial for creating the necessary vacuum conditions and ensuring reliable results.

In summary, vacuum pumps can be effectively used for leak detection purposes. They facilitate various leak detection methods such as vacuum decay, bubble testing, helium leak detection, pressure change testing, and mass spectrometer leak detection. Vacuum pumps create the required low-pressure environment, assist in evacuating the system or component being tested, and enable accurate and reliable leak detection. The choice of vacuum pump depends on the specific requirements of the leak detection method and the sensitivity needed for the application.

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 Custom Paper Pulp Water Ring Vacuum Pump for Paper Making Machine   vacuum pump oil	China Custom Paper Pulp Water Ring Vacuum Pump for Paper Making Machine   vacuum pump oil
editor by CX 2024-04-08