Introduction:
LG（B） series dry screw vacuum pumps can manage both condensable vapors and some solids with no residue. They offer a number of advantages over the traditional vacuum pump designs. There’s is “NO OIL NO WATER” in contact with the process vapors, so therefore they are considered environmentally friendly.
Advantages:
1.Oil& Water free Dry running operation makes clean vacuum.
2.Can achieve ultimate vacuum as low as 2Pa(50hz), 1Pa(60hz).
3.Quiet operation; Equipped with special silencer,lower noise.
4.No metal-metal contact between Screw and Casing ensures long pump life.
5.Simple design results easy maintenance.
Applications:
Chemical & Pharmaceutical Processing,Solvent Recovery, Crystallization, Vapor Coating,Petroleum and semiconductor markets.etc.
Technical Specification:
|
Model |
Flow Rate
50/60Hz |
Ultimate Vacuum 50/60Hz |
Power 50/60Hz |
Speed 50/60Hz |
Inlet |
Silencer outlet |
Gear Cavity Volume | Cooling Water Volume |
Weight |
||
| m3/hr | CFM | L/s | Pa | kW | RPM | mm | mm | L | L/min | kg | |
| LG-50 | 180/216 | 105/127 | 50/60 | 2/1 | 7.5 | 2900
/3550 |
65 | 50 | 0.85 | 2.5 | 295 |
| LG-70 | 250/300 | 147/176 | 70/84 | 7.5 | 80 | 50 | 0.85 | 2.6 | 350 | ||
| LG-110 | 400/480 | 235/282 | 110/132 | 15 | 100 | 80 | 1.4 | 2.8 | 480 | ||
| LG-150 | 540/650 | 317/382 | 150/180 | 18.5 | 150 | 80 | 2 | 3 | 520 | ||
| LG-200 | 720/850 | 423/500 | 200/240 | 22 | 150 | 100 | 2 | 4 | 680 | ||
| LGB-70 | 250/300 | 147/176 | 70/84 | 7.5 | 65 | 50 | 0.85 | 2.5 | 295 | ||
| LGB-110 | 400/480 | 235/282 | 110/132 | 7.5 | 80 | 50 | 0.85 | 2.6 | 350 | ||
| LGB-160 | 576/690 | 339/406 | 160/192 | 15 | 100 | 80 | 1.4 | 2.8 | 480 | ||
| LGB-220 | 792/950 | 466/559 | 220/264 | 18.5/22 | 150 | 80 | 2 | 3 | 520 | ||
| LGB-330 | 1188/1425 | 699/839 | 330/396 | 30 | 150 | 100 | 2 | 4 | 680 | ||
| LGB-280 | 1008/1210 | 593/712 | 280/336 | 100/70 | 22 | 150 | 80 | 2 | 3.2 | 520 | |
| LGB-300 | 1080/1290 | 635/758 | 300/360 | 22 | 150 | 80 | 2 | 4 | 520 | ||
| LG-300A | 1080/1290 | 636/759 | 300/360 | 30/37 | 150 | 100 | 2 | 2.8 | 680 | ||
Remark:
1.The oil consumption on above sheet is for reference only. The machine can alwaysadoptfluoride or mineral substance oil. Pump oil and lubricant oil will be matched before delivery.
2.Above cooling water consumption data is tested with ambient temp at 30℃,coolingwater suction temp at 20℃, and water pressure from 0.15 MPa to 0.2 MPa. Various working condition will cause different cooling water consumption.
3.The main differences between LG and LGB:
(1) LG model is same pitch screw pump, LGB is variable pitch screw pump.
(2) The speed of reaching high vacuum with LGB model is slower than that with LG.
(3) The LGB model cannot operate between 1ATM to 10000 Pa for a long time because the load is too large. When the vacuum degree is better than 10000 Pa, it is recommended to use LGB. The final selection needs to be based on specific working conditions, please contact EVP for details.
(4) The load is lower when the LGB model reaches the ultimate vacuum, so the energy consumption is lower as it approaches the ultimate vacuum. The opposite is true for LG.
4.Advantage ofLG300A:
(1) The motor of LG300A is separated from the gearbox, and the motor brand can be specified.
(2) LG300A is small in size and can be used in industries with low vacuum requirements such as the plastic blister industry, packaging industry, and egg tray industry.
Other Material Option:Titanium Alloy
Titanium alloy screw vacuum pumps are products for special applications under strong corrosion conditions. The internal flow surfaces of the pump are made of high-quality and high-performance titanium alloy materials, which have the characteristics of high corrosion resistance, high strength, and good stability.
The binding force between titanium and oxygen is extremely strong. A dense oxide film can easily form on the surface of titanium alloy, providing strong corrosion resistance on the surface of parts. Actual cases have shown that titanium alloy pumps are suitable for pumping out hydrogen chloride and thionyl chloride, nitric acid, organic acids, alkali, inorganic salts and other corrosive media.
Performance Parameter:
|
Model |
Pumping Speed 50/60Hz |
Ultimate Pressure 50/60Hz |
Power 50/60Hz |
Speed 50/60Hz |
Inlet |
Silencer outlet |
Gear Cavity Volume | Cooling Water Volume |
Weight |
||
| m3/hr | CFM | L/s | Pa | kW | RPM | mm | mm | L | L/min | kg | |
| LG-70T | 250/300 | 147/176 | 70/84 | 5/2.5 | 7.5 | 2900
/3550 |
80 | 50 | 0.85 | 2.5 | 350 |
| LG-150T | 540/645 | 317/380 | 150/180 | 18.5 | 150 | 80 | 2 | 3 | 520 | ||
| LGB-110T | 400/480 | 235/282 | 110/132 | 7.5 | 80 | 50 | 0.85 | 2.6 | 350 | ||
| LGB-220T | 792/950 | 466/559 | 220/264 | 18.5/22 | 150 | 80 | 2 | 3 | 520 | ||
| LGB-300T | 1080/1290 | 636/759 | 300/360 | 100/70 | 22 | 150 | 80 | 2 | 2.8 | 520 | |
If possible, kindly suggest please your working industry/process, working pressure, working medium, etc. Given detailed request helps to gain better-matched customized solution. Thanks for your patience.
your request will be responsed within 3 hours, kindly pay attention to your email please.
