LG-20 1.1kw Screw Oil Free Vacuum Pump Corrosion Resistant Oil And Gas Recovery
LG-20 dry oil-free screw vacuum pump delivers ≤5Pa ultimate vacuum with 20m³/h pumping speed. Features oil-free operation, corrosion-resistant materials, and CE/ISO certifications. Ideal for oil/gas recovery, vacuum coating, and pharmaceutical applications.
Product Details
Highlight:
LG-20 Oil Free Vacuum Pump
,1.1kw Oil Free Vacuum Pump
,Screw screw vacuum pump
Model:
LG-20
Noise:
≤70
Power:
1.1kw
Application 1:
Oil And Gas Recovery
Application 2:
Vacuum Coating,Pharmaceutical
Application 3:
Vacuum Molding,Food Processing,Vacuum Smelting
Pumping Speed:
20m3/H
Ultimate Pressure(PA:
50/10/1
Speed:
2840rpm
Size:
770x350x370
Pump Head Weight:
90kg
Basic Properties
Place of Origin:
China
Brand Name:
kaien
Certification:
CE
Model Number:
LG-20
Trading Properties
Minimum Order Quantity:
1
Price:
≥ 2000USD
Payment Terms:
D/A,D/P,T/T
Supply Ability:
50000PCS/ Yea
Product Description
LG-20 Dry Oil-Free Screw Vacuum Pump
LG Series Dry Oil-Free Screw Vacuum Pump with air/water cooling options, high vacuum ≤1Pa, CE certified, ideal for oil & gas recovery applications.
Key Features
- Oil-free dry design for clean, environmentally friendly operation with no wastewater discharge
- Ultimate vacuum ≤1 Pa with high pumping speed in high vacuum regions
- Optional air-cooled or water-cooled cooling methods
- Corrosion-resistant flow-through components in titanium, stainless steel, or nano-ceramics
- Automatic purging device for removal of condensable gases and small amounts of dust
- Premium components: German seals, SKF/NSK bearings, 5-stage gear teeth
- Low noise, low vibration, smooth operation with energy-efficient performance
- Full certification: CE, ISO, IAF, CNAS compliant
Product Overview
The LG Series Dry Oil-Free Screw Vacuum Pump utilizes precision-machined parallel screws rotating synchronously in reverse to create sealed chambers that continuously convey gas for efficient suction and exhaust. The advanced oil-free design ensures clean vacuum performance that protects both process media and the environment.
Featuring a specialized screw structure for high pumping efficiency and strong liquid discharge capacity, the pump offers smooth exhaust through its short, unobstructed pump cavity. Dynamic balance correction of rotors and high-quality bearings ensure stable, low-vibration operation with minimal noise. Corrosion-resistant components and automatic purging make it suitable for condensable gases, water vapor, and mildly corrosive media.
Technical Specifications (Air Cooled Series)
| Type | 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 (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 |
Installation & Operation Guidelines
- Inspect pump for damage before installation and handle with care
- Ensure power supply voltage matches pump's rated voltage before operation
- Not suitable for explosive gases or gases with high oxygen content
- Regularly inspect inlet filter screen to prevent blockage
- For water-cooled models: ensure continuous, clean cooling water supply
Applications

- 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
Frequently Asked Questions
Can I place a sample order?
Yes, we welcome sample orders for quality testing. Mixed samples are also acceptable.
What certifications do your pumps have?
Our pumps are CE, ISO, IAF, and CNAS certified, ensuring compliance with international standards.
Can the pump handle corrosive gases?
Yes, we offer corrosion-resistant options with titanium, stainless steel, or nano-ceramic flow passage parts.
What about the lead time?
5-7 days for sample preparation, 10-15 working days for mass production.
Do you have any MOQ limit for vacuum pump orders?
Low MOQ, 1pc for sample checking is available.
How do you ship the goods and how long does it take to arrive?
We ship by DHL, UPS, FedEx or TNT for urgent orders (3-5 days). Airline and sea shipping available for larger quantities.
How to proceed an order for the vacuum pump?
1. Specify your requirements or application scenarios. 2. We provide quotation based on your needs. 3. Confirm samples and place deposit. 4. We arrange production and scheduled delivery.
Is it OK to print my logo on the vacuum pump?
Yes. Please provide logo design files before production begins.
Do you offer a guarantee for the products?
Yes, we offer a 12-month warranty with free maintenance and replacement of faulty parts caused by quality issues.
How to deal with faulty products?
Our quality control maintains a defective rate below 0.1%. During warranty, we provide replacement parts or new pumps with next orders. For batch issues, we repair and resend or discuss recall solutions.
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