two-stage rotary vane vacuum pump for environmental industry

The two-stage rotary vane vacuum pump is specifically designed for extracting gases containing corrosive substances or water vapor, ensuring exceptional reliability and stability even in harsh operating environments.

Features of Two-Stage Rotary Vane Vacuum Pump

1. Wide power range: Available in multiple power options to suit diverse applications.
2. High pumping rate: Delivers large flow rates, ideal for applications requiring substantial gas extraction.
3. Extended pressure range: Two-stage design achieves lower ultimate pressures, suitable for high vacuum requirements.
4. Double anti-oil return: Dual protection system prevents oil backflow and contamination of the vacuum system.
5. Anti-corrosion design: Incorporates corrosion-resistant materials and coatings for long service life in challenging environments.
6. Forced lubrication system: Built-in gear pump ensures constant-pressure oil supply for stable operation at low vacuum levels.

Working Principle

The pump consists of two compression chambers connected in series, rotating synchronously. Each chamber independently completes the gas intake, compression, and discharge process. The first stage compresses incoming gas, while the second stage further compresses and discharges it, achieving higher vacuum levels and enhanced pumping capacity. Corrosion-resistant materials like stainless steel springs and Viton seals are used to ensure stable performance with corrosive gases and water vapor.

Performance Advantages

1. Easy maintenance: Fewer components simplify repair and reduce maintenance workload.
2. Superior anti-corrosion: Stainless steel springs and anti-corrosion coatings withstand harsh gases and moisture.
3. Stable lubrication: Forced lubrication ensures smooth, reliable operation even at low vacuum.
4. Flexible gas ballast: Dual gas ballast options effectively handle steam discharge under varying process conditions.
5. Enhanced oil return protection: Double anti-oil return valves prevent oil contamination and prolong equipment life.

Application Areas

• Chemical & pharmaceutical industries: Reliable vacuum extraction for chemical reactions, even with volatile solvents and corrosive gases.
• Food industry: Vacuum packaging and encapsulation to maintain food freshness.
• Photovoltaic industry: High-precision vacuum extraction in photovoltaic material manufacturing.
• Semiconductor industry: Ensures stable vacuum environments for semiconductor production.
• Environmental protection: Extraction of corrosive and hazardous gases to reduce industrial emissions.
• Aerospace: High vacuum simulation and gas tightness testing in aerospace applications.