Product Description

 

Product Description

The reciprocating pump operates on the positive displacement principle. The piston of a reciprocating piston pump goes back and forth in a cylinder. With the help of a connecting rod, the piston is connected to the crankshaft. The connecting rod moves as the crankshaft rotates, causing this piston to move. The crankshaft is connected to a rotating motor.

With a suction valve and a delivery valve, the pump cylinder is linked to a suction pipe and a discharge pipe. The input and exit valves act as check valves, allowing only 1 direction of fluid flow. Through the input valve, the fluid is sucked into the cylinder. The outlet valve allows the fluid to exit the pump’s cylinder.

Main features

1. Compact structure design, good rigidity, even force on moving parts, reducing the wear of moving parts and prolonging service life.
2. Compared with other pumps of the same specification, it saves electricity by 1/3, cooling water can be used twice, and the floor space is reduced by 2/3;
3. In the crankcase, the oil pump is used to force oil supply, with better lubrication effect.
4. Smooth running, low vibration, low noise
5. Because of the oil-free lubrication, clean vacuum can be obtained, which rejects the pollution of the process system by air reflux after temporary stop;
6. Add recovery device, can recover the liquid in the system (such as alcohols), can also recover the gas in the system (such as hydrogen chloride into hydrochloric acid), such as adding vacuum puff collector, can also extract a small amount of dust;
7. In the process of use, no need to add lubricant, easy and simple maintenance.

 

Applications

WLW series oil-free vertical vacuum pump is the main equipment to obtain rough vacuum. It adopts unique technical structure, with better performance and more convenient use. It is also the replacement product of W type pump. It is widely used in vacuum distillation, vacuum drying, vacuum filtration, vacuum crystallization, vacuum smelting, vacuum infiltration and other industrial sectors such as petrochemical, pharmaceutical, food smelting, electronics, etc. to extract gases such as atmosphere, water vapor, chlorine, hydrogen chloride, sulfur dioxide, etc
 

Technical data

Model WLW -50 WLW -70 WLW -100 WLW -150 WLW -200 WLW -300 WLW -400 WLW -600 WLW -1200
Pumping volume L/s 50 70 100 150 200 300 400 600 1200
Vacuum mmhg 20 20 20 20 20 20 20 20 20
Rotational speed r/min 320 380 350 310 300 300 300 300 300
Electric power KW 4 5.5 7.5 11 15 22 28.5 37 45
Inlet and exhaust caliber 50 50 100 100 125 145 145 180 220
Pump temperature rise ° C ≤40 ≤40 ≤40 ≤40 ≤40 ≤40 ≤50 ≤50 ≤50
Noise qB(A) ≤70 ≤70 ≤70 ≤70 ≤70 ≤70 ≤85 ≤85 ≤85
Inlet and outlet joint G1/2 G1/2 G1/2 G1/2 G1/2 G1/2 G1 G1 G1
Weight Kg 500 520 600 800 900 1200 1800 2600 3500

 

Pressure diagram

Additional Notes:
1. The data provided above are the average values measured at atmospheric pressure as standard and room temperature of 20C.
2. The above table-2 is the technical parameters of the two-stage pump;
3. One standard atmospheric pressure is equal to 0.101Mpa.
 

Dimension

Model WLW-50 WLW-70 WLW-100 WLW-150 WLW-200 WLW-300 WLW-600
L 1100 1100 1270 1440 1440 1680 2150
L1 150 150 160 180 180 200 220
L2 400 400 475 480 540 640 855
L3 470 470 610 790 790 820 1100
B 550 550 600 750 750 840 950
B1 325 325 360 404 450 500 610
H 1170 1170 1360 1360 1460 1560 1660
H1 910 910 1115 1175 1175 1275 1375
H2 780 780 965 995 995 1095 1195
H3 400 400 400 400 400 400 400
H4 300 300 300 300 300 300 300
H5 300 300 300 300 300 300 300
H6 160 160 160 160 160 160 160
D 110 110 175 175 210 210 300
D1 50 50 100 125 125 145 180
d 8 8 10 12 12 14 16
M 90 90 145 175 175 195 250
n 4 4 4 4 4 4 4

 

FAQ

Q: What information should I offer for an inquiry?
A: You can inquire based on the model directly, but it is always recommended that you contact us so that we can help you to check if the pump is the most appropriate for your application.

Q: Can you make a customized vacuum pump?
A: Yes, we can do some special designs to meet customer applications. Such as customized sealing systems, speical surface treatment can be applied for roots vacuum pump and screw vacuum pump. Please contact us if you have special requirements. 

Q: I have problems with our vacuum pumps or vacuum systems, can you offer some help?
A: We have application and design engineers with more than 30 years of experience in vacuum applications in different industries and help a lot of customers resolve their problems, such as leakage issues, energy-saving solutions, more environment-friendly vacuum systems, etc. Please contact us and we’ll be very happy if we can offer any help to your vacuum system.

Q: Can you design and make customized vacuum systems?
A: Yes, we are good for this.

Q: What is your MOQ?
A: 1 piece or 1 set.

Q: How about your delivery time?
A: 5-10 working days for the standard vacuum pump if the quantity is below 20 pieces, 20-30 working days for the conventional vacuum system with less than 5 sets. For more quantity or special requirements, please contact us to check the lead time.

Q: What are your payment terms?
A: By T/T, 50% advance payment/deposit and 50% paid before shipment.

Q: How about the warranty?
A: We offer 1-year warranty (except for the wearing parts).

Q: How about the service?
A: We offer remote video technical support. We can send the service engineer to the site for some special requirements.

After-sales Service: Online Video Instruction
Warranty: 1 Year
Oil or Not: Oil Free
Structure: Reciprocating Vacuum Pump
Exhauster Method: Positive Displacement Pump
Nominal Pumping Speed(50Hz): 50L/S

###

Model WLW -50 WLW -70 WLW -100 WLW -150 WLW -200 WLW -300 WLW -400 WLW -600 WLW -1200
Pumping volume L/s 50 70 100 150 200 300 400 600 1200
Vacuum mmhg 20 20 20 20 20 20 20 20 20
Rotational speed r/min 320 380 350 310 300 300 300 300 300
Electric power KW 4 5.5 7.5 11 15 22 28.5 37 45
Inlet and exhaust caliber 50 50 100 100 125 145 145 180 220
Pump temperature rise ° C ≤40 ≤40 ≤40 ≤40 ≤40 ≤40 ≤50 ≤50 ≤50
Noise qB(A) ≤70 ≤70 ≤70 ≤70 ≤70 ≤70 ≤85 ≤85 ≤85
Inlet and outlet joint G1/2 G1/2 G1/2 G1/2 G1/2 G1/2 G1 G1 G1
Weight Kg 500 520 600 800 900 1200 1800 2600 3500

###

Model WLW-50 WLW-70 WLW-100 WLW-150 WLW-200 WLW-300 WLW-600
L 1100 1100 1270 1440 1440 1680 2150
L1 150 150 160 180 180 200 220
L2 400 400 475 480 540 640 855
L3 470 470 610 790 790 820 1100
B 550 550 600 750 750 840 950
B1 325 325 360 404 450 500 610
H 1170 1170 1360 1360 1460 1560 1660
H1 910 910 1115 1175 1175 1275 1375
H2 780 780 965 995 995 1095 1195
H3 400 400 400 400 400 400 400
H4 300 300 300 300 300 300 300
H5 300 300 300 300 300 300 300
H6 160 160 160 160 160 160 160
D 110 110 175 175 210 210 300
D1 50 50 100 125 125 145 180
d 8 8 10 12 12 14 16
M 90 90 145 175 175 195 250
n 4 4 4 4 4 4 4
After-sales Service: Online Video Instruction
Warranty: 1 Year
Oil or Not: Oil Free
Structure: Reciprocating Vacuum Pump
Exhauster Method: Positive Displacement Pump
Nominal Pumping Speed(50Hz): 50L/S

###

Model WLW -50 WLW -70 WLW -100 WLW -150 WLW -200 WLW -300 WLW -400 WLW -600 WLW -1200
Pumping volume L/s 50 70 100 150 200 300 400 600 1200
Vacuum mmhg 20 20 20 20 20 20 20 20 20
Rotational speed r/min 320 380 350 310 300 300 300 300 300
Electric power KW 4 5.5 7.5 11 15 22 28.5 37 45
Inlet and exhaust caliber 50 50 100 100 125 145 145 180 220
Pump temperature rise ° C ≤40 ≤40 ≤40 ≤40 ≤40 ≤40 ≤50 ≤50 ≤50
Noise qB(A) ≤70 ≤70 ≤70 ≤70 ≤70 ≤70 ≤85 ≤85 ≤85
Inlet and outlet joint G1/2 G1/2 G1/2 G1/2 G1/2 G1/2 G1 G1 G1
Weight Kg 500 520 600 800 900 1200 1800 2600 3500

###

Model WLW-50 WLW-70 WLW-100 WLW-150 WLW-200 WLW-300 WLW-600
L 1100 1100 1270 1440 1440 1680 2150
L1 150 150 160 180 180 200 220
L2 400 400 475 480 540 640 855
L3 470 470 610 790 790 820 1100
B 550 550 600 750 750 840 950
B1 325 325 360 404 450 500 610
H 1170 1170 1360 1360 1460 1560 1660
H1 910 910 1115 1175 1175 1275 1375
H2 780 780 965 995 995 1095 1195
H3 400 400 400 400 400 400 400
H4 300 300 300 300 300 300 300
H5 300 300 300 300 300 300 300
H6 160 160 160 160 160 160 160
D 110 110 175 175 210 210 300
D1 50 50 100 125 125 145 180
d 8 8 10 12 12 14 16
M 90 90 145 175 175 195 250
n 4 4 4 4 4 4 4

What Are Vacuum Pumps?

Vacuum pumps use air flow as the source of energy. The system is ideal for dewatering wet media, creating filter cakes, and pneumatically moving materials through a pipe. A vacuum pump works through air flow that is moved by differential pressure. The pump’s air flow develops a vacuum in a chamber that is called the vacuum box. As the air flow collects gas at a faster rate than atmospheric pressure, it is considered the “heart” of a vacuum system.
Vacuum Pump

Principles of operation

Vacuum pumps work by reducing the volume of air that moves through them. Depending on the design, there are several different types of vacuum pumps. All of these types operate under the same principles, but have their own special features. Here are some of their most important characteristics. In addition to their capacity, the main differences between these pumps are their manufacturing tolerances, materials of construction, and level of tolerance for chemicals, oil vapor, and vibration.
Vacuum pumps create a partial or low-pressure vacuum by forcing gas molecules from their high-pressure states to their low-pressure states. However, these pumps can only achieve a partial vacuum, and other methods are necessary to reach a higher level of vacuum. As with all pumps, there are several ways to increase the level of a vacuum.
First, consider the type of vacuum you want. This is the most important factor when choosing a vacuum pump. If you need a high level of vacuum, you’ll need a high-quality vacuum pump. High-quality vacuum pumps have a high pressure limit, while ultrahigh-quality pumps are capable of achieving a very low vacuum. As the pressure decreases, the amount of molecules per cubic centimeter decreases and the quality of the vacuum increases.
Positive displacement pumps are best suited for low and medium-pressure systems. But they can’t reach high vacuum, which is why most high-pressure systems use two pumps in tandem. In this case, the positive displacement pump would stall and the other one would be used instead. Similarly, entrapment pumps have higher-pressure limits, so they must be refreshed frequently or exhaust frequently when there is too much gas to capture.
Another important aspect of vacuum pump operation is its speed. The speed of pumping is proportional to the differential pressure across the system. Therefore, the faster the pumping speed, the lower the draining time.

Design

A vacuum pump is a mechanical device used to generate a vacuum. It can create a low or high vacuum. These pumps are used in the process of oil regeneration and re-refining. The design of a vacuum pump must be compatible with the vacuum. The pump’s mass and speed should be matched.
The design of a vacuum pump is important for many reasons. It should be easy to use and maintain. Vacuum pumps need to be protected from external contamination. For this reason, the oil must be kept clean at all times. Contamination may damage the oil, resulting in pump failure. The pump’s design should include features that will prevent this from happening.
The main objective of a vacuum pump is to remove air and other gases from a chamber. As the pressure of the chamber drops, the amount of molecules that can be removed becomes more difficult. Because of this, industrial and research vacuum systems typically require pumps to operate over a large pressure range. The range is generally between one and 10-6 Torr. A standard vacuum system uses multiple pumps, each covering a portion of the pressure range. These pumps can also be operated in a series to achieve optimal performance.
The design of a vacuum pump can vary depending on the application and the pressure requirement. It should be sized appropriately to ensure that it works properly. There are several different types of pumps, so selecting the right pump is essential to maximizing its efficiency. For example, a slow running vee belt drive rotary vane vacuum pump will have a lower running temperature than a fast-running direct-drive pump.
Vacuum Pump

Performance

The performance of a vacuum pump is an important indicator of its overall condition. It helps determine whether the system is performing optimally and how high the ultimate vacuum level can be achieved. A performance log should be maintained to document variations in pump operating hours and voltage as well as the temperature of the pump’s cooling water and oil. The log should also record any problems with the pump.
There are several ways to increase the performance of a vacuum pump. For example, one way is to decrease the temperature of the working fluid. If the temperature of the fluid is too high, it will lead to a low vacuum. A high temperature will make the vacuum degree of the pump even lower, so heat transfer is an important part of the process.
Nozzles are another major component that impacts the performance of a vacuum pump. Damage or clogging can result in a compromised pumping capacity. These problems can occur due to a number of causes, including excessive noise, leakage, and misassembled parts. Nozzles can also become clogged due to rusting, corrosion, or excess water.
Performance of vacuum pump technology is vital for many industries. It is an integral part of many central production processes. However, it comes with certain expenses, including machines, installations, energy, and maintenance. This makes it essential to understand what to look for when purchasing a vacuum pump. It is important to understand the factors that can influence these factors, as they affect the efficiency of a vacuum pump.
Another important factor in determining the performance of a vacuum pump is throughput. Throughput is a measurement of how many molecules can be pumped per unit of time at a constant temperature. Moreover, throughput can also be used to evaluate volume leak rates and pressure at the vacuum side. In this way, the efficiency of a vacuum pump can be judged by the speed and throughput of its leaks.

Atmospheric pressure

Vacuum pumps work by sucking liquids or air into a container. The amount of vacuum a pump can create is measured in pressure units called atms (atmospheric pressure). The pressure of a vacuum pump is equal to the difference between atmospheric pressure and the pressure in the system.
The amount of force produced by air molecules on each other is proportional to the number of impacts. Therefore, the greater the impact, the higher the pressure. In addition, all molecules have the same amount of energy at any temperature. This holds true for both pure and mixture gases. However, lighter molecules will move faster than heavier ones. Nevertheless, the transfer of energy is the same for both.
The difference between atmospheric and gauge pressure is not always straightforward. Some applications use one term to describe the other. While the two concepts are closely related, there are key differences. In most cases, atmospheric pressure is a higher number than gauge pressure. As a result, it can be confusing when choosing a vacuum pump.
One method is to use a U-tube manometer, a compact device that measures the difference between atmospheric pressure and vacuum. This device is commonly used for monitoring vacuum systems. It can measure both negative and positive pressure. In addition, it uses an electronic version of a gauge.
The atmospheric pressure affects the performance of a vacuum pump. When working with porous materials, the pump must overcome leakage. As a result, it must be equipped with enough capacity to compensate for variations in the porosity of the work piece. This is why it is critical to buy a vacuum pump that has a large enough capacity to handle the variation.
Vacuum Pump

Typical application

Vacuum pumps are used in a variety of applications. They generate low and high pressures and are used to evaporate water or gases from various materials. They are also used in petroleum regeneration and re-refining processes. Typical applications of vacuum pumps include: a.
b. Rotary vane pumps are used in a variety of vacuum applications. They are suitable for industrial applications, freeze drying and cabinet making. They use oil as a sealant and coolant, allowing them to perform well in a variety of applications. This makes them ideal for use in a variety of industries.
The pumping rate of the vacuum pump is important. This refers to the volume pumped from a given point at a given rate. The higher the speed, the faster the pump will expel the air. Depending on the gas composition, this number will vary. When choosing a vacuum pump, gas composition and process requirements should be considered.
Vacuum pumps are used in a variety of industries from laboratories to medical facilities. In medical applications, they are used in radiation therapy and radiopharmaceuticals. They are also used in mass spectrometers, which are instruments used to analyze solid, liquid, or surface materials. Vacuum pumps are also used in decorative vacuum coatings and Formula 1 engine components. A trash compactor is another example of using a vacuum pump.
Vacuum pumps are used in a variety of applications including water purification and aeration. Vacuum pumps are also used in portable dental equipment and compressors in the dental industry. Vacuum pumps are also used in molds for dental implants. Other common applications for vacuum pumps include soil aeration and air sampling.

China Wlwa-50 Standing Reciprocation Vacuum Pump (oil free)     wholesaler China Wlwa-50 Standing Reciprocation Vacuum Pump (oil free)     wholesaler
editor by czh 2022-11-26