YL. LG(B) screw vacuum pump
YL. LG (B) series (variable-pitch) screw vacuum pump is our company according to the market demand independent research and development of advanced dry vacuum pump, because screw vacuum pump does not need oil lubrication or water seal
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YL. LG(B) screw vacuum pump
Detailed introduction
Product overview
YL. LG (B) series (variable-pitch) screw vacuum pump is our company according to the market demand independent research and development of advanced dry vacuum pump, because screw vacuum pump does not need oil lubrication or water seal, the pump cavity is completely oil-free, therefore, screw vacuum pump in the semiconductor, electronics industry requirements oil-free clean vacuum occasions and chemical and pharmaceutical solvent recovery process has incomparable advantages, in addition to the transformer drying process rotary vane pump oil change frequent and life problems can also be solved, Therefore, screw vacuum pumps can widely replace rotary vane vacuum pumps, spool vacuum pumps, water ring vacuum pumps, water jet vacuum pumps, reciprocating vacuum pumps, roots water ring vacuum units, etc.
A lead of the screw vacuum pump is equivalent to a first-stage pump, and the screw pump with multiple leads is equivalent to a multi-stage pump in series, compared to the claw vacuum pump, multi-stage roots vacuum pump and other multi-stage series dry vacuum pumps, because there is no internal channel between the stages of the screw vacuum pump, but directly push the gas from the suction side to the exhaust side, so it is not easy to block and easy to clean when extracting condensable gas, gas with dust and particles.
Screw type oil-free mechanical vacuum pump, also known as dry screw vacuum pump, is the use of gear transmission synchronous reverse rotation of the left screw and right screw without contact with the right screw for high-speed rotation, the use of pump casing and mutual meshing spiral to separate the spiral groove into multiple spaces, the formation of multiple stages, gas in the unequal groove transmission movement, but no compression, only the screw end of the spiral structure has a compression effect on the gas. A pressure gradient can be formed between the stages of the screw to disperse the differential pressure and improve the compression ratio. The clearance and pump speed have a great influence on the performance of the pump. When setting the gap between each part of the screw, the expansion, processing and assembly accuracy and working environment (such as extracting dust-containing gases, etc.) should be considered. Like roots pumps, this pump does not have a venting valve. This type of pump is simple to manufacture if the appropriate simpler screw tooth section is selected, which can ensure high processing accuracy and easy balancing. There is no oil in the pump chamber, which improves product quality.
Product features
● There is no oil in the pump chamber, no pollution to the vacuum system, and improve product quality.
●There is no oil in the pump cavity, which solves the problems of oil emulsification, frequent replacement of working fluid, frequent maintenance and maintenance, and saves the cost of use.
●Dry operation, will not produce waste oil and oil smoke, conducive to environmental protection, save oil resources.
●A gas that can remove a large amount of water vapor and a small amount of dust. After adding accessories, flammable, explosive and radioactive gases can be extracted.
●The ultimate vacuum reaches 1Pa, which is suitable for medium and low vacuum, and the rotary root pump can be equipped with an oil-free medium vacuum pumping unit in series, and an oil-free high vacuum unit can be formed in series with a molecular pump.
●After the use of anti-corrosion coating treatment, it is especially suitable for distillation and drying of products in transformers, pharmaceutical and chemical processes.
Product use
1. Electrician: transformer, transformer, epoxy resin vacuum casting, capacitor vacuum oil impregnation, vacuum pressure impregnation.
2. Industrial furnace: vacuum brazing, vacuum sintering, vacuum annealing, vacuum pressurized gas quenching, vacuum dehydroxylation, etc.
3. Vacuum coating: vacuum evaporation coating, vacuum magnetron sputtering coating, film winding continuous coating, ion coating, etc.
4. Metallurgy: special steel smelting, vacuum induction furnace, vacuum desulfurization, degassing.
5. Aviation and aerospace: space carrying spacecraft orbital module, rocket attitude adjustment chamber, spacesuit, astronaut space warehouse, aircraft lift off and other vacuum simulation tests.
6. Drying: vacuum drying by pressure swing method, kerosene gas tank drying, wood drying, vegetable freeze drying.
7. Chemical industry, pharmaceutical: product distillation, drying, degassing, material transportation, etc.
Performance parameters
| Model | YL·LG-150 | YL·LG-300 | YL·LG-450 | YL·LG-600 | YL·LG-900 | |||||||||||||
| Pumping frequency(m3/h) | 150 | 300 | 450 | 600 | 900 | |||||||||||||
| Ultimate Pressure (PA) | 5 | 5 | 5 | 5 | 5 | |||||||||||||
| Power (kW) | 5.5 | 11 | 15 | 18.5 | 30 | |||||||||||||
| Speed (rpm) | 2900 | 2900 | 2930 | 2930 | 2940 | |||||||||||||
| Inlet diameter(mm) | 40 | 50 | 65 | 80 | 100 | |||||||||||||
| Exhaust port diameter(mm) | 40 | 40 | 50 | 65 | 80 | |||||||||||||
| Cooling water (L/min) | 2 | 4 | 8 | 10 | 12 | |||||||||||||
| Noise dBA) | 78 | 78 | 80 | 80 | 80 | |||||||||||||
| Weight (kg) | 280 | 386 | 450 | 580 | 700 | |||||||||||||
| Model | YL·LGB-180 | YL·LGB-360 | YL·LGB-540 | YL·LGB-720 | YL·LGB-1100 | |||||||||||||
| Pumping frequency(m3/h) | 180 | 360 | 540 | 720 | 1100 | |||||||||||||
| Ultimate Pressure (PA) | 1 | 1 | 1 | 1 | 1 | |||||||||||||
| Power (kW) | 4 | 7.5 | 11 | 15 | 22 | |||||||||||||
| Speed (rpm) | 3000 | 3000 | 3000 | 3000 | 3000 | |||||||||||||
| Inlet diameter(mm) | 40 | 50 | 65 | 80 | 100 | |||||||||||||
| Exhaust port diameter(mm) | 40 | 40 | 50 | 65 | 80 | |||||||||||||
| Cooling water (L/min) | 2 | 4 | 8 | 10 | 25 | |||||||||||||
| Noise dBA) | 70 | 70 | 72 | 72 | 75 | |||||||||||||
| Weight (kg) | 280 | 386 | 450 | 580 | 1050 | |||||||||||||
The above data is for reference only
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Headquarters: Shanghai Yulong Vacuum Pump Co., Ltd
Zhejiang Company: Zhejiang Xinhuan Vacuum Pump Co., Ltd. (formerly Yuhuan Vacuum Pump Factory)
Anhui Company: Guangde Yulong Pump Co., Ltd.
Address: 915 Zhenbei Road, Shanghai
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