INQUIRY:
760-936-2797
AFTER-SALES：
760-390-7111
Screw Pump
Product Introduction
Dry screw vacuum pump is an air extraction device that uses a pair of screws to perform synchronous high-speed reverse rotation in the pump casing to produce air suction and exhaust. The two screws are finely dynamically balanced and supported by bearings. They are installed on the pump. In the shell, there is a certain gap between screws. Therefore, when the pump is working, there is no friction between each other, smooth operation, low noise, and no lubricating oil is required in the working chamber. And the dry screw pump can pump out a large amount of steam and a small amount of dust, the ultimate vacuum degree is higher, the power consumption is lower, and it has the advantages of energy saving and maintenance-free.
Product Advantages
For the chemical industry optimization:
1. Adopting a configuration method that improves stability, the performance is stable and reliable;
2. We have developed a dedicated muffler that has good noise reduction effect and is easy to clean and discharge;
3. The low installation structure of bottom exhaust and muffler can ensure the smooth discharge of foreign objects in the pump, prevent liquid accumulation and sedimentation in the pump chamber, and ensure the feasibility of daily maintenance measures for the pump;
4. A complete daily maintenance system has been configured, and corresponding maintenance measures have been formulated for various harmful factors, which can effectively reduce the harmfulness of harmful factors, reduce failures, and improve the stability of the pump.
5. The rotor surface has anti-corrosion coating, which can greatly improve the surface hardness and corrosion resistance of the rotor, enhance the wear resistance of the rotor, and extend the service life of the rotor.
For the electronics industry optimization:
1. Adopting the configuration method with the best pumping efficiency, the effective pumping speed is higher and the ultimate pressure is lower, reaching up to 0.6Pa;
2. Developed a dedicated muffler with good noise reduction effect and lower noise level;
3. Adopting a vertical installation structure of side exhaust and muffler can effectively reduce the center of gravity of the pump and reduce the footprint;
4. Equipped with advanced cooling system, it can accurately control the operating temperature difference of various components in the pump chamber, improve the stability of the pump, and reduce the impact of changes in cooling water supply temperature and flow rate on the pump.
5. The rotor surface has a protective coating, which can greatly improve the surface hardness and smoothness of the rotor, greatly enhance the wear resistance of the rotor, and extend the service life of the rotor.
Model | LG-2 | LG-4 | LG-12 | LG-18 | LG-25 | LG-50 | LG-70 | LG-110 | LG-150 | LG-200 | LG-300 |
|---|---|---|---|---|---|---|---|---|---|---|---|
Pumping
rate | 10 | 20 | 50 | 70 | 90 | 180 | 250 | 396 | 540 | 720 | 1080 |
Pumping
rate | 2.78 | 5.56 | 13.89 | 19.44 | 25 | 50 | 69.44 | 110 | 150 | 200 | 300 |
Ultimate pressure
(50/60Hz)Pa | ≤5 | ≤5 | ≤5 | ≤10 | ≤10 | ≤5 | ≤5 | ≤5 | ≤5 | ≤5 | ≤5 |
Rotating speed(rpm) | 2730 | 2840 | 2850 | 2850 | 2870 | 2900 | 2900 | 2900 | 2900 | 2900 | 2900 |
Power(Kw) | 0.55 | 1.1 | 2.2 | 3 | 4 | 5.5 | 5.5 | 7.5 | 11 | 15 | 18.5 |
Air inlet diameter(mm) | 16 | 25 | 40 | 40 | 50 | 50 | 50 | 65 | 70 | 90 | 100 |
Exhaust diameter(mm) | 16 | 25 | 40 | 40 | 50 | 40 | 40 | 40 | 55 | 65 | 65 |
Cooling water volume
(L/Min) | Forced air cooling | Forced air cooling | Forced air cooling | Forced air cooling | Forced air cooling | 2.5 | 2.5 | 2.6 | 2.8 | 3 | 4 |
Noise(dBA) | 70 | 72 | 75 | 75 | 80 | 75 | 72 | 73 | 78 | 78 | 80 |
Overall dimensions
(mm) | 640*280*280 | 740*340*330 | 870*420*360 | 960*
450*480 | 1020*449*447 | 1081*500*978 | 1081*500*978 | 1207*470*978 | 1708*690*1069 | 1433*630*1085 | 1751*630*1095 |
Gear chamber oil volum
(L) | / | / | / | / | / | 0.85 | 0.85 | 0.85 | 1.4 | 2 | 2 |
Weight(Kg) | 50 | 73 | 115 | 144 | 170 | 295 | 350 | 350 | 480 | 520 | 680 |
Room temperature(℃) | 5~40 | 5~40 | 5~40 | 5~40 | 5~40 | 5~40 | 5~40 | 5~40 | 5~40 | 5~40 | 5~40 |
Maximum
allowable humidity | 90% | 90% | 90% | 90% | 90% | 90% | 90% | 90% | 90% | 90% | 90% |
Power supply | 380V 50Hz 3P | 380V 50Hz 3P | 380V 50Hz 3P | 380V 50Hz 3P | 380V 50Hz 3P | 380V 50Hz 3P | 380V 50Hz 3P | 380V 50Hz 3P | 380V 50Hz 3P | 380V 50Hz 3P | 380V 50Hz 3P |