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The dry screw vacuum pump is a rotor that uses a pair of parallel screws to make synchronous, high-speed and reverse rotation in the pump housing. The rotor and the inner wall of the pump body form a number of sealing spaces. During the rotation, the continuous transmission of gas is formed to achieve the purpose of suction and exhaust.
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Kaien
Product Description
The dry screw vacuum pump is a rotor that uses a pair of parallel screws to make synchronous, high-speed and reverse rotation in the pump housing. The rotor and the inner wall of the pump body form a number of sealing spaces. During the rotation, the continuous transmission of gas is formed to achieve the purpose of suction and exhaust.
Working principle of dry screw vacuum pump
The working principle of a dry screw vacuum pump is mainly based on the use of gear transmission to synchronize and rotate in the opposite direction without contact between the left and right screws for high-speed rotation. The pump casing and the spiral grooves of the propeller that mesh with each other are divided into multiple spaces, forming multiple stages. Gas is transmitted and moved in equal grooves without compression, and only the spiral structure at the end of the screw has a compression effect on the gas. The pressure gradient can be formed between each stage of the screw to disperse the pressure difference and improve the compression ratio. The clearance between each part and the pump speed have a significant impact on the performance of the pump. When designing the clearances between various parts of the screw, factors such as expansion, machining and assembly accuracy, and working environment should be considered. Dry screw vacuum pumps, like Roots vacuum pumps, do not have exhaust valves.
Technical parameter
| 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 |
Water cooling Dry screw vacuum pump
Application Area
Can extract condensable gases containing a large amount of water vapor and a small amount of dust, and can also be used to extract corrosive gases, oil and gas, solvents, and other media for recovery.
Product highlights
Precision casting, durable, heat-resistant, corrosion-resistant, and with a long service life
Stable performance and high efficiency. High quality special bearings, smooth operation, low vibration, and low noise, energy conservation
Mechanical seal, leak proof. There is no medium in the working chamber, which can obtain a clean vacuum; Select between components No gap, can operate at high speed
Dry oil-free, no lubrication required in the working chamber, no secondary pollution to the extracted medium, providing a clean vacuum without worrying about backflow pollution
Factory Shooting
Workshop shooting, complete equipment, and rich production experience
Product Description
The dry screw vacuum pump is a rotor that uses a pair of parallel screws to make synchronous, high-speed and reverse rotation in the pump housing. The rotor and the inner wall of the pump body form a number of sealing spaces. During the rotation, the continuous transmission of gas is formed to achieve the purpose of suction and exhaust.
Working principle of dry screw vacuum pump
The working principle of a dry screw vacuum pump is mainly based on the use of gear transmission to synchronize and rotate in the opposite direction without contact between the left and right screws for high-speed rotation. The pump casing and the spiral grooves of the propeller that mesh with each other are divided into multiple spaces, forming multiple stages. Gas is transmitted and moved in equal grooves without compression, and only the spiral structure at the end of the screw has a compression effect on the gas. The pressure gradient can be formed between each stage of the screw to disperse the pressure difference and improve the compression ratio. The clearance between each part and the pump speed have a significant impact on the performance of the pump. When designing the clearances between various parts of the screw, factors such as expansion, machining and assembly accuracy, and working environment should be considered. Dry screw vacuum pumps, like Roots vacuum pumps, do not have exhaust valves.
Technical parameter
| 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 |
Water cooling Dry screw vacuum pump
Application Area
Can extract condensable gases containing a large amount of water vapor and a small amount of dust, and can also be used to extract corrosive gases, oil and gas, solvents, and other media for recovery.
Product highlights
Precision casting, durable, heat-resistant, corrosion-resistant, and with a long service life
Stable performance and high efficiency. High quality special bearings, smooth operation, low vibration, and low noise, energy conservation
Mechanical seal, leak proof. There is no medium in the working chamber, which can obtain a clean vacuum; Select between components No gap, can operate at high speed
Dry oil-free, no lubrication required in the working chamber, no secondary pollution to the extracted medium, providing a clean vacuum without worrying about backflow pollution
Factory Shooting
Workshop shooting, complete equipment, and rich production experience
