Solution Description
Solution Description
Dry screw vacuum pump, is the use of a pair of screw, produced in the pump shell synchronous large-pace reverse rotation of the results of the suction and exhaust and suction system, 2 screw good dynamic balancing correction, and is supported by bearings, is mounted in the pump shell, in between screw and screw has a specified gap, so the pump work, no friction among every other, smooth managing, minimal sounds, Operating chamber with out lubricating oil, as a result, dry screw pump can eliminate a great deal of steam and a modest volume of dust gasoline occasions, higher restrict vacuum, lower energy usage, vitality preserving, maintenance-cost-free and other benefits.Dry Oil-Totally free Air Cooling Screw Vacuum Pump ,This is an advanced and widely utilised vacuum pump at existing, It is 1 of the ideal-offering merchandise of our organization.
It adopts explosion-evidence motor with substantial configuration, It has the attributes of reduced sound, no oil and air pollution, cleanse and substantial vacuum, easy and convenient use, operation and upkeep, Extensively utilized in numerous industries, For example, oil and gasoline recovery, vacuum coating, biomedicine, foodstuff processing, solitary crystal furnace, vacuum forming, vacuum melting, digital photovoltaic, semiconductor synthesis and a lot of other industries are utilised.
The dry oil-cost-free screw vacuum pump developed by our organization is divided into air cooling and drinking water cooling according to the extraction fee, and there are a lot of designs for you to pick.
Our Rewards
There is no medium in the operating chamber, which can get a clear vacuum.
. No clearance amongst rotating elements, substantial velocity procedure, little all round quantity.
There is no compression in the gasoline, suited for extraction of coagulable fuel.
Can get rid of a great deal of steam and a tiny amount of dust gas events.
. Higher vacuum, the ultimate vacuum up to 1 Pa.
Screw substance is high toughness unique content, content density, dress in resistance, secure efficiency.
No friction rotating elements, low sounds.
. Simple structure, convenient upkeep.
Broader selection of use: corrosive atmosphere can be utilized.
No oil intake, no h2o.
Pump gasoline right discharged from the pump physique, no pollution of water, no environmental pressure, more convenient gasoline recovery.
It can be composed of oil-free of charge device with Roots pump and molecular pump.
Typical Use
——Oil and fuel recovery. ——Organic medication ——Food Processing —— One crystal furnace
——Vacuum forming ——Vacuum flame refining ——Digital photovoltaic. ——Semiconductor synthesis
Item Parameters
Air cooling Dry screw vacuum pump
| Type (Air cooled series) |
Standard parameters | ||||||||
| Pumping speed (m3/h) |
Presure restrict(Pa) | Power (kW) | revolution (rpm) | Inlet caliber (mm) |
outlet caliber (mm) | Pump head bodyweight (kg) |
noise dB(A) | General dimension (size*width*height) (mm) |
|
| LG-10 | ten | ≤5 | .75 | 2730 | KF16 | KF16 | thirty | ≤ 72 | 655x260x285 |
| LG-twenty | 20 | ≤5 | one.one | 2840 | KF25 | KF25 | 55 | ≤72 | 720x305x370 |
| LG-50 | fifty | ≤10 | 2.2 | 2850 | KF40 | KF40 | ninety | ≤75 | 920x350x420 |
| LG-70 | 70 | ≤30 | three | 2850 | KF40 | KF40 | 110 | ≤75 | 910x390x460 |
| LG-90 | ninety | ≤30 | 4 | 2870 | KF50 | KF50 | a hundred twenty five | ≤80 | 1000x410x495 |
Water cooling Dry screw vacuum pump
| Type | Simple parameters | ||||||||
| Pumping speed mthree/h |
Presure limit(Pa) | Power (kW) | revolution (rpm) | Inlet caliber mm |
outlet caliber mm | Cooling drinking water volume L/min |
noise dB(A) | Overall dimension (length*width*peak) mm |
|
| LGV-180 | a hundred and eighty | five | 4 | 2900 | 40 | forty | 2 | < 78 | 1157x375x734 |
| LGV-250 | 250 | 5 | 5.5 | 2900 | 50 | forty | five.five | <78 | 1462x417x820 |
| LGV-360 | 360 | 5 | 7.five | 2900 | 50 | 40 | 4 | W78 | 1462x455x820 |
| LGV-540 | 540 | five | eleven | 2900 | 65 | fifty | 8 | W80 | 1578x543x860 |
| LGV-720 | 720 | five | fifteen | 2900 | 80 | sixty five | ten | <80 | 1623x562x916 |
| LGV-1100 | 1100 | five | 22 | 2900 | a hundred | eighty | fourteen | w eighty | 1866x598x1050 |
| LG V-1800 | 1800 | five | 37 | 2900 | a hundred and fifty | one hundred | 20 | w eighty | 2092×951 x 1150 |
Characteristic Curve
Air cooling Dry screw vacuum pump
Water cooling Dry screw vacuum pump
Comprehensive Pictures
Vacuum pump is used in the discipline of chemical plantVacuum pumps are utilized in oiling devices
Common Manager Speech
Deeply cultivate the vacuum technological innovation, and research,develop and manufacture the vacuum equipment to give the ideal resolution in the vacuum subject and make the vacuum application simpler.
Firm Profile
ZheJiang Kaien Vacuum Technology Co., Ltd. is a substantial-tech enterprise integrating R & D, creation and operation of vacuum gear. The company has powerful specialized drive, excellent tools and considerate after-sales service. The merchandise producing procedure is managed in rigorous accordance with IS09001 quality technique. It mainly creates and sells screw vacuum pump, roots pump, claw vacuum pump, runoff vacuum pump, scroll pump, water ring vacuum pump, vacuum unit and other vacuum techniques.
New plant plHangZhou
The company’s goods have been for a amount of foodstuff, medication, refrigeration, drying vegetation and a quantity of transformer related tools manufacturers for vacuum products. The goods are broadly employed in vacuum drying and dehydration, kerosene vapor section drying, vacuum impregnation, vacuum metallurgy, vacuum coating, vacuum evaporation, vacuum focus, oil and gas restoration, and many others.
Higher precision machining tools
The company cooperates with numerous scientific investigation institutions and universities, such as ZheJiang College, China College of petroleum, ZheJiang Institute of mechanical design, etc.with colleges and universities to study and create main technologies, and owns dozens of independent mental residence patents.Our engineering is major, the product top quality is steady, the item has a excellent reputation in China’s domestic market, is bought all in excess of the nation, and is exported to Europe, The usa, Africa, the Center East and Southeast Asia,We adhering to the simple tenet of quality, reputation and services, the company takes foremost-edge engineering of vacuum pump as its very own obligation, and wholeheartedly serves clients of vacuum equipment software in various industries with demanding working mindset and professional operating design.
Product high quality wins client cooperation
In shipment
ISO 9001
Welcome to ship your needs, we will give you with the very best support,
offer the best assist!!!
|
US $235-7,850 / Piece | |
1 Piece (Min. Order) |
###
| Warranty: | One Year |
|---|---|
| Oil or Not: | Oil Free |
| Structure: | Screw |
| Exhauster Method: | Entrapment Vacuum Pump |
| Vacuum Degree: | High Vacuum |
| Work Function: | Mainsuction Pump |
###
| Customization: |
Available
|
|---|
###
| Type (Air cooled series) |
Basic parameters | ||||||||
| Pumping speed (m3/h) |
Presure limit(Pa) | Power (kW) | revolution (rpm) | Inlet caliber (mm) |
outlet caliber (mm) | Pump head weight (kg) |
noise dB(A) | Overall dimension (length*width*height) (mm) |
|
| LG-10 | 10 | ≤5 | 0.75 | 2730 | KF16 | KF16 | 30 | ≤ 72 | 655x260x285 |
| LG-20 | 20 | ≤5 | 1.1 | 2840 | KF25 | KF25 | 55 | ≤72 | 720x305x370 |
| LG-50 | 50 | ≤10 | 2.2 | 2850 | KF40 | KF40 | 90 | ≤75 | 920x350x420 |
| LG-70 | 70 | ≤30 | 3 | 2850 | KF40 | KF40 | 110 | ≤75 | 910x390x460 |
| LG-90 | 90 | ≤30 | 4 | 2870 | KF50 | KF50 | 125 | ≤80 | 1000x410x495 |
###
| Type | Basic parameters | ||||||||
| Pumping speed m3/h |
Presure limit(Pa) | Power (kW) | revolution (rpm) | Inlet caliber mm |
outlet caliber mm | Cooling water volume L/min |
noise dB(A) | Overall dimension (length*width*height) mm |
|
| LGV-180 | 180 | 5 | 4 | 2900 | 40 | 40 | 2 | < 78 | 1157x375x734 |
| LGV-250 | 250 | 5 | 5.5 | 2900 | 50 | 40 | 5.5 | <78 | 1462x417x820 |
| LGV-360 | 360 | 5 | 7.5 | 2900 | 50 | 40 | 4 | W78 | 1462x455x820 |
| LGV-540 | 540 | 5 | 11 | 2900 | 65 | 50 | 8 | W80 | 1578x543x860 |
| LGV-720 | 720 | 5 | 15 | 2900 | 80 | 65 | 10 | <80 | 1623x562x916 |
| LGV-1100 | 1100 | 5 | 22 | 2900 | 100 | 80 | 14 | w 80 | 1866x598x1050 |
| LG V-1800 | 1800 | 5 | 37 | 2900 | 150 | 100 | 20 | w 80 | 2092×951 x 1150 |
|
US $235-7,850 / Piece | |
1 Piece (Min. Order) |
###
| Warranty: | One Year |
|---|---|
| Oil or Not: | Oil Free |
| Structure: | Screw |
| Exhauster Method: | Entrapment Vacuum Pump |
| Vacuum Degree: | High Vacuum |
| Work Function: | Mainsuction Pump |
###
| Customization: |
Available
|
|---|
###
| Type (Air cooled series) |
Basic parameters | ||||||||
| Pumping speed (m3/h) |
Presure limit(Pa) | Power (kW) | revolution (rpm) | Inlet caliber (mm) |
outlet caliber (mm) | Pump head weight (kg) |
noise dB(A) | Overall dimension (length*width*height) (mm) |
|
| LG-10 | 10 | ≤5 | 0.75 | 2730 | KF16 | KF16 | 30 | ≤ 72 | 655x260x285 |
| LG-20 | 20 | ≤5 | 1.1 | 2840 | KF25 | KF25 | 55 | ≤72 | 720x305x370 |
| LG-50 | 50 | ≤10 | 2.2 | 2850 | KF40 | KF40 | 90 | ≤75 | 920x350x420 |
| LG-70 | 70 | ≤30 | 3 | 2850 | KF40 | KF40 | 110 | ≤75 | 910x390x460 |
| LG-90 | 90 | ≤30 | 4 | 2870 | KF50 | KF50 | 125 | ≤80 | 1000x410x495 |
###
| Type | Basic parameters | ||||||||
| Pumping speed m3/h |
Presure limit(Pa) | Power (kW) | revolution (rpm) | Inlet caliber mm |
outlet caliber mm | Cooling water volume L/min |
noise dB(A) | Overall dimension (length*width*height) mm |
|
| LGV-180 | 180 | 5 | 4 | 2900 | 40 | 40 | 2 | < 78 | 1157x375x734 |
| LGV-250 | 250 | 5 | 5.5 | 2900 | 50 | 40 | 5.5 | <78 | 1462x417x820 |
| LGV-360 | 360 | 5 | 7.5 | 2900 | 50 | 40 | 4 | W78 | 1462x455x820 |
| LGV-540 | 540 | 5 | 11 | 2900 | 65 | 50 | 8 | W80 | 1578x543x860 |
| LGV-720 | 720 | 5 | 15 | 2900 | 80 | 65 | 10 | <80 | 1623x562x916 |
| LGV-1100 | 1100 | 5 | 22 | 2900 | 100 | 80 | 14 | w 80 | 1866x598x1050 |
| LG V-1800 | 1800 | 5 | 37 | 2900 | 150 | 100 | 20 | w 80 | 2092×951 x 1150 |
Types of vacuum pumps
A vacuum pump is a device that draws gas molecules from a sealed volume and leaves a partial vacuum in its wake. Its job is to create a relative vacuum within a specific volume or volume. There are many types of vacuum pumps, including centrifugal, screw and diaphragm. 
Forward centrifugal pump
Positive displacement centrifugal vacuum pumps are one of the most commonly used pump types in the oil and gas industry. Their efficiency is limited to a range of materials and can handle relatively high solids concentrations. However, using these pumps has some advantages over other types of pumps.
Positive displacement pumps have an enlarged cavity on the suction side and a reduced cavity on the discharge side. This makes them ideal for applications involving high viscosity fluids and high pressures. Their design makes it possible to precisely measure and control the amount of liquid pumped. Positive displacement pumps are also ideal for applications requiring precise metering.
Positive displacement pumps are superior to centrifugal pumps in several ways. They can handle higher viscosity materials than centrifuges. These pumps also operate at lower speeds than centrifugal pumps, which makes them more suitable for certain applications. Positive displacement pumps are also less prone to wear.
Positive displacement vacuum pumps operate by drawing fluid into a chamber and expanding it to a larger volume, then venting it to the atmosphere. This process happens several times per second. When maximum expansion is reached, the intake valve closes, the exhaust valve opens, and fluid is ejected. Positive displacement vacuum pumps are highly efficient and commonly used in many industries.
Self-priming centrifugal pump
Self-priming centrifugal pumps are designed with a water reservoir to help remove air from the pump. This water is then recirculated throughout the pump, allowing the pump to run without air. The water reservoir can be located above or in front of the impeller. The pump can then reserve water for the initial start.
The casing of the pump contains an increasingly larger channel forming a cavity retainer and semi-double volute. When water enters the pump through channel A, it flows back to the impeller through channels B-C. When the pump is started a second time, the water in the pump body will be recirculated back through the impeller. This recycling process happens automatically.
These pumps are available in a variety of models and materials. They feature special stainless steel castings that are corrosion and wear-resistant. They can be used in high-pressure applications and their design eliminates the need for inlet check valves and intermediate valves. They can also be equipped with long intake pipes, which do not require activation.
Self-priming centrifugal pumps are designed to run on their own, but there are some limitations. They cannot operate without a liquid source. A foot valve or external liquid source can help you start the self-priming pump.
Screw Pump
The mechanical and thermal characteristics of a screw vacuum pump are critical to its operation. They feature a small gap between the rotor and stator to minimize backflow and thermal growth. Temperature is a key factor in their performance, so they have an internal cooling system that uses water that circulates through the pump’s stator channels. The pump is equipped with a thermostatically controlled valve to regulate the water flow. Also includes a thermostatic switch for thermal control.
Screw vacuum pumps work by trapping gas in the space between the rotor and the housing. The gas is then moved to the exhaust port, where it is expelled at atmospheric pressure. The tapered discharge end of the screw further reduces the volume of gas trapped in the chamber. These two factors allow the pump to work efficiently and safely.
Screw vacuum pumps are designed for a variety of applications. In some applications, the pump needs to operate at very low pressures, such as when pumping large volumes of air. For this application, the SCREWLINE SP pump is ideal. Their low discharge temperature and direct pumping path ensure industrial process uptime. These pumps also feature non-contact shaft seals to reduce mechanical wear. Additionally, they feature a special cantilever bearing arrangement to eliminate potential sources of bearing failure and lubrication contamination.
Screw vacuum pumps use an air-cooled screw to generate a vacuum. They are compact, and clean, and have a remote monitoring system with built-in intelligence. By using the app, users can monitor pump performance remotely. 
Diaphragm Pump
Diaphragm vacuum pumps are one of the most common types of vacuum pumps found in laboratories and manufacturing facilities. The diaphragm is an elastomeric membrane held in place around the outer diameter. While it is not possible to seal a diaphragm vacuum pump, there are ways to alleviate the problems associated with this design.
Diaphragm vacuum pumps are versatile and can be used in a variety of clean vacuum applications. These pumps are commercially available with a built-in valve system, but they can also be modified to include one. Because diaphragm pumps are so versatile, it’s important to choose the right type for the job. Understanding how pumps work will help you match the right pump to the right application.
Diaphragm vacuum pumps offer a wide range of advantages, including an extremely long service life. Most diaphragm pumps can last up to ten thousand hours. However, they may be inefficient for processes that require deep vacuum, in which case alternative technologies may be required. Additionally, due to the physics of diaphragm pumps, the size of these pumps may be limited. Also, they are not suitable for high-speed pumping.
Diaphragm vacuum pumps are a versatile subset of laboratory pumps. They are popular for their oil-free construction and low maintenance operation. They are available in a variety of styles and have many optional features. In addition to low maintenance operation, they are chemically resistant and can be used with a variety of sample types. However, diaphragm pumps tend to have lower displacements than other vacuum pumps.
Atmospheric pressure is a key factor in a vacuum pump system
Atmospheric pressure is the pressure created by the collision of air molecules. The more they collide, the greater the pressure. This applies to pure gases and mixtures. When you measure atmospheric pressure, the pressure gauge reads about 14.7 psia. The higher the pressure, the greater the force on the gas molecules.
The gas entering the vacuum pump system is below atmospheric pressure and may contain entrained liquids. The mechanism of this process can be explained by molecular kinetic energy theory. The theory assumes that gas molecules in the atmosphere have high velocities. The resulting gas molecules will then start moving in random directions, colliding with each other and creating pressure on the walls of the vacuum vessel.
Atmospheric pressure is a critical factor in a vacuum pump system. A vacuum pump system is useless without proper atmospheric pressure measurement. The pressure in the atmosphere is the total pressure of all gases, including nitrogen and oxygen. Using total pressure instead of partial pressure can cause problems. The thermal conductivity of various gases varies widely, so working at full pressure can be dangerous.
When choosing a vacuum pump, consider its operating range. Some pumps operate at low atmospheric pressure, while others are designed to operate at high or ultra-high pressure. Different types of pumps employ different technologies that enhance their unique advantages. 
The screw pump is less efficient in pumping gases with smaller molecular weight
Vacuuming requires a high-quality pump. This type of pump must be able to pump gas of high purity and very low pressure. Screw pumps can be used in laboratory applications and are more efficient when pumping small molecular weight gases. Chemical resistance is critical to pump life. Chemical resistant materials are also available. Chemically resistant wetted materials minimize wear.
Gear pumps are more efficient than screw pumps, but are less efficient when pumping lower molecular weight gases. Gear pumps also require a larger motor to achieve the same pumping capacity. Compared to gear pumps, progressive cavity pumps also have lower noise levels and longer service life. In addition, gear pumps have a large footprint and are not suitable for tight spaces.
Progressive cavity pumps have two or three screws and a housing and side cover. They are also equipped with gears and bearings. Their mechanical design allows them to operate in high pressure environments with extremely low noise. The progressive cavity pump is a versatile pump that can be used in a variety of applications.
Dry screw compressors have different aspect ratios and can operate at high and low pressures. The maximum allowable differential pressure for screw compressors ranges from 0.4 MPa for 3/5 rotors to 1.5 MPa for 4/6 rotors. These numbers need to be determined on a case-by-case basis.
editor by czh 2023-01-17