China Custom Oilless Lab Diaphragm Vacuum Pump manufacturer

Product Description

Introduction of Pneumatic Diaphragm Pump                                                             
A Diaphragm Pump is the most famous type of pump from the category of positive displacement
pump. It is also called a Membrane Pump . For pumping a fluid, a diaphragm pump uses a combination
of the reciprocating action of the diaphragm made of thermoplastic, or rubber with the corresponding valves
(globe valves, flap valves, butterfly valves, check valves or any other type of valves) on both sides of the diaphragm.

The diaphragm pumps can move liquids with high, medium, or low viscosity and liquids with high solids contents. This pump can also be made from various body materials and membranes to handle a variety of harsh chemicals such as acids.

Working Principle of Diaphragm Pump                                                                   

Technical Parameter of Diaphragm Pump                                      

Application of Diaphragm Pump                                                                

1

Chemical industry: Acids, alkalis, solvents, suspended solids, decentralized system.

2

Petrochemical industry: Crude oil, heavy oil, grease, mud, sludge, etc.

3

Coatings industry: Resins, solvents, soloring agent, paint, etc.

4

Cosmetic industry: Detergent, shampoo, lotion, emulsion, camphor ice, surface active agents.

5

Ceramics: mud, slurry pottery, lime milk, clay slurry.

6

Mining industry: Coal slurry, magma, mud, CHINAMFG and explosives, lubricant, etc.

7

Water treatment: Lime milk, soft sediments, sewage, chemicals, waste water.

8

The food industry: Liquid semi-solid, chocolate, salt water, vinegar, syrup, vegetable oil, soybean honey, animal food.

9

Beverage industry: Yeast, sugar syrup, concentrations, gas-liquid mixture, wine, fruit juice, com pulp, etc.

10

Pharmaceutical industry: Solvents, acids, alkalis, plant extract liquid, cream, plasma and other liquid drugs.

11

Paper industry: Adhesives, resins, paints, inks, paints, hydrogen peroxide, etc.

12

Electronics industry: Solvent, electroplating fluid, cleaning fluid, sulfuric acid, nitric acid, waste acid, corrosive acid, polishing liquid.

13

Textile solution: Chemical dyes, resins, rubber, etc.

14

Contruction industry: Grout, ceramic tile adhesives, rock slurry, ceiling finish, etc.

15

Automotive industry: Polishing emulsion, oil, coolant, automotive priming, oil emulsion paint, vamish, vanish additives, degreasing fluid, paint, etc.

16

Furniture industry: Adhesives, varnishes, decentralized system, solvents, color agent, sapwood glue, epoxy resins, slarch binder

17

Metallurgy, casting and dyeing industry: Metal slurry, hydroxides and carbide slurry, dust cleaning slurry.

How to choose a suitable diaphragm pump?                                                 
In the pump choice, it isn’t easy to match the type of pump to your application. But the best way to
choose a diaphragm pump is to compare the pump modes of working in terms of strength, characteristics,
and weaknesses with your application that can alleviate some issues.

 

The diaphragm vacuum pump can pump the following fluids

* Powders

* Titanium Dioxide

* Latex

* Adhesives

* Lacquers

* Greases

* Paints

* Varnishes
 

FAQ                                                                                                                     
1. What is your MOQ?

One piece sample is acceptable. More quantities, more favorable price.

2. Are customized products accepted?
Yes, we support any of your innovative idea and will also provide you the filtering scheme for your reference.

3. Do you accept OEM?
Yes, we can produce the filters according to your requirement.

4. Any discount possible if I place an order?
Yes, we have different price discounts based on different purchasing quantities.

5. How long is the delivery time?
It depends on which kind of the products it is and the ordered quantity. But we promise that
we will try our best to finish all of your orders within the shortest time.

6. Term of Payment
We accept T/T, L/C, Western Union, Paypal or Cash.

7. Test before leaving from our factory
Every kinds of our filter will be made the pressure test to assure it is qualified before leaving from our factory.

8. Quality warranty
Our warranty is 1 year. But normally, our machine can work more than 5 years before repair.

Method of Shipment and Payment                                                                  

Contact Us                                                                                                        
 

ZheJiang CHINAMFG Filter Equipment Co.,Ltd

Exportation Department

 

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After-sales Service: Online Technical Support
Warranty: 1 Year
Max.Head: 50-80m
Max.Capacity: 300-400 L/min
Driving Type: Pneumatic
Material: Stainless Steel
Customization:
Available

|

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

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

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 Custom Oilless Lab Diaphragm Vacuum Pump   manufacturer China Custom Oilless Lab Diaphragm Vacuum Pump   manufacturer
editor by CX 2024-03-27

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