In industries such as chemical, pharmaceutical, and food processing, the choice of vacuum pumps directly impacts production efficiency, energy consumption, and maintenance costs. The 2BV series liquid ring vacuum pump, as a new generation of energy-saving equipment, has become the ideal replacement for traditional SK/2SK series pumps, thanks to its direct-coupled design, anti-cavitation protection, and low maintenance requirements.
Direct-coupled transmission with up to 96% efficiency
Over 30% more energy-efficient than traditional SK series
Optimized impeller design for higher vacuum levels
Patented cavitation protection system
Built-in cavitation protection tube interface
Effectively extends pump service life
Mechanical seal lifespan of up to 8,000 hours
Monolithic structure reduces leakage points
40% fewer wear-prone parts compared to traditional pumps
Parameter |
Range |
Selection Recommendation |
Airflow Capacity |
60-1800 m³/h |
System demand + 15% margin |
Ultimate Vacuum |
33 mbar(a) |
Consider process requirements |
Operating Fluid Temp. |
15-40°C |
Cooling system needed for high temps |
Pharmaceutical Industry: 2BV5 series with CIP cleaning interface
Chemical Industry: 2BV6 series with corrosion-resistant materials
Food Processing: 2BV2 series with food-grade lubrication
Particulate-laden media: Install pre-filters
Condensable gases: Equip with steam tracing
Corrosive environments: Titanium or plastic-lined options
Foundation: Concrete base, levelness ≤ 0.1 mm/m
Piping: Check valve at inlet, outlet pipe inclined 1-3°
Electrical: Motor protection rating ≥ IP54
Fill working fluid to sight glass midpoint
Manually rotate shaft 3-5 turns to ensure smoothness
Verify motor rotation (clockwise from motor end)
Gradually adjust inlet valve to design conditions
Frequency |
Task |
Standard |
Daily |
Check oil/fluid level |
Maintain at 1/2-2/3 of sight glass |
Monthly |
Bearing lubrication |
Use specified grease |
Quarterly |
Mechanical seal inspection |
Leakage < 5 drops/min |
Annually |
Full disassembly check |
Replace all O-rings |
Issue 1: Insufficient Vacuum
Causes: High fluid temp / Low fluid level / System leakage
Solution: Check cooling system / Refill fluid / Pressure test
Issue 2: Abnormal Vibration
Causes: Bearing wear / Impeller imbalance / Loose base
Solution: Replace bearings / Dynamic balancing / Tighten bolts
Issue 3: Motor Overload
Causes: High inlet pressure / Excessive fluid flow
Solution: Adjust inlet valve / Check pipeline resistance
Real-time vibration, temp, and pressure monitoring
4-20mA signal output
Predictive maintenance alerts
VFD drive system (25-40% power savings)
Heat recovery unit (for high-temp processes)
Closed-loop water system (30%+ water savings)
The modular design of the 2BV series meets over 90% of industrial vacuum needs. Our technical team offers:
Free process analysis
3D installation simulation
Lifecycle cost assessment
Contact our engineers today for an optimized vacuum solution tailored to your application!
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Further Reading:
Special Applications of Liquid Ring Pumps in Pharma
5 Key Points for Vacuum System Energy Retrofits
2BV vs. 2SK Series Performance White Paper