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LGV-720 Dry Screw Vacuum Pump with High Vacuum ≤1Pa, Low Noise <65 dB, and Corrosion Resistant Materials
dry screw vacuum pump high vacuum
,oil free vacuum pump low noise
,corrosion resistant vacuum pump with warranty
Basic Properties
Trading Properties
- Oil-free dry design, clean and environmentally friendly, no wastewater discharge
- Ultimate vacuum ≤1 Pa, high pumping speed in high vacuum regions
- Optional air-cooled or water-cooled cooling methods
- Flow-through components made of corrosion-resistant materials such as titanium, stainless steel, or nano-ceramics
- Equipped with automatic purging device to remove condensable gases and small amounts of dust
- German seals, SKF/NSK bearings, 5-stage gear teeth
- Low noise, low vibration, smooth operation, energy-efficient and high-performance
- Fully certified with CE, ISO, IAF, CNAS, etc.
The LG Series Dry Oil-Free Screw Vacuum Pump uses a pair of precision-machined parallel screws to rotate synchronously and in reverse, creating a series of sealed chambers that continuously convey gas for suction and exhaust. Its advanced design eliminates the need for lubrication in the working chamber, ensuring clean, oil-free vacuum performance that protects your process media and the environment.
The pump features a special screw structure that delivers high pumping efficiency and strong liquid discharge capacity, with a short, unobstructed pump cavity for smooth exhaust. The rotor undergoes dynamic balance correction, and high-quality bearings ensure stable, low-vibration operation with minimal noise. The corrosion-resistant flow passage parts and automatic purging system make it suitable for handling condensable gases, water vapor, and even mildly corrosive media, making it an ideal choice for oil and gas recovery, solvent recovery, and special gas handling applications.
| Type (Air cooled series) | Basic parameters | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Pumping speed (m3/h) | Pumping speed (L/s) | Pressure limit (Pa) | Power (kW) | revolution (rpm) | Inlet caliber | outlet caliber | Pump head weight (kg) | noise dB(A) | Overall dimension (length*width*height) (mm) | |
| LG-5 | 5 | 1.5 | ≤5 | 0.37 | 2720 | KF14 | KF14 | 14 | ≤68 | 510x200x260 |
| LG-10 | 10 | 3 | ≤5 | 0.75 | 2840 | KF16 | KF16 | 30 | ≤68 | 620x280x300 |
| LG-20 | 20 | 6 | ≤5 | 1.1 | 2840 | KF25 | KF25 | 45 | ≤70 | 770x350x370 |
| LG-30 | 30 | 9 | ≤10 | 1.5 | 2850 | KF40 | KF40 | 55 | ≤71 | 920x440x450 |
| LG-50 | 50 | 15 | ≤10 | 2.2 | 2850 | KF40 | KF40 | 65 | ≤72 | 1080x500x550 |
| LG-70 | 70 | 20 | ≤30 | 3 | 2870 | KF50 | KF40 | 72 | ≤72 | 1100x580x600 |
| LG-80 | 80 | 23 | ≤30 | 3 | 2870 | KF50 | KF40 | 78 | ≤72 | 1180x660x680 |
| LG-90 | 90 | 25 | ≤30 | 4 | 2890 | KF63 | KF50 | 85 | ≤73 | 1250x720x750 |
| LG-100 | 100 | 30 | ≤30 | 4 | 2890 | KF63 | KF50 | 93 | ≤73 | 1310x750x810 |
| 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 | <78 | 1462x455x820 |
| LGV–540 | 540 | 5 | 15 | 2900 | 65 | 50 | 8 | <80 | 1578x543x860 |
| LGV–720 | 720 | 5 | 18. 5 | 2900 | 80 | 65 | 10 | <80 | 1623x562x916 |
| LGV–1100 | 1100 | 5 | 22 | 2900 | 100 | 80 | 14 | <80 | 1866x598x1050 |
| LG V–1800 | 1800 | 5 | 37 | 2900 | 150 | 100 | 20 | <80 | 2092x951 x 1150 |
- Please check the pump for damage before installation and handle it with care.
- Ensure the power supply voltage matches the pump's rated voltage before operation.
- The pump is not suitable for pumping explosive gases or gases with high oxygen content.
- Regularly inspect the filter screen at the inlet to prevent blockage.
- For water-cooled models, ensure a continuous and clean cooling water supply.
Widely used in:
- Oil and gas recovery, solvent recovery, special gas recovery
- Vacuum coating, biomedicine, food processing
- Single crystal furnace, vacuum molding, vacuum smelting
- Electronic photovoltaic, semiconductor synthesis
Q1: Can I place a sample order?
A: Yes, we welcome sample orders for quality testing. Mixed samples are also acceptable.
Q2: What certifications do your pumps have?
A: Our pumps are CE, ISO, IAF, and CNAS certified, ensuring compliance with international standards.
Q3: Can the pump handle corrosive gases?
A: Yes, we offer corrosion-resistant options with titanium, stainless steel, or nano-ceramic flow passage parts.
Commercial CE ISO IAF CNAS Certified Dry Oil-Free Screw Vacuum Pump, Air/Water Cooling, High Vacuum ≤1Pa for Oil & Gas Recovery
Q1: Can I place a sample order for the vacuum pump?
A: Yes, we welcome sample orders for quality testing. Mixed samples of different models are also acceptable.
Q2: What about the lead time?
A: 5-7 days for sample preparation, 10-15 working days for mass production.
Q3: Do you have any MOQ limit for vacuum pump orders?
A: Low MOQ, 1pc for sample checking is available.
Q4: How do you ship the goods and how long does it take to arrive?
A: We ship by DHL, UPS, FedEx or TNT for urgent orders, which takes 3-5 days to arrive. Airline and sea shipping are also optional for larger quantities.
Q5: How to proceed an order for the vacuum pump?
A: Firstly, let us know your specific requirements or application scenarios. Secondly, we will quote according to your needs or our professional suggestions. Thirdly, you confirm the samples and place a deposit for the formal order. Fourthly, we arrange production and deliver the goods as scheduled.
Q6: Is it OK to print my logo on the vacuum pump?
A: Yes. Please inform us formally before production and provide your logo design files.
Q7: Do you offer a guarantee for the products?
A: Yes, we offer a 12-month warranty for our vacuum pumps. During the warranty period, we provide free maintenance and replacement of faulty parts caused by quality issues.
Q8: How to deal with faulty products?
A: Firstly, our products are manufactured under a strict quality control system, with a defective rate of less than 0.1%. Secondly, during the warranty period, we will send replacement parts or new pumps with your next order for small quantities. For defective batch products, we will repair them and resend them to you, or we can discuss a solution including recall based on the actual situation.
