Edwards RV Direct Drive Vacuum Pumps

Edwards RV series direct drive vacuum pumps are among the most popular and reliable rotary vane pumps in laboratories and light industrial settings worldwide. These compact, oil-sealed, two-stage pumps are engineered for excellent ultimate vacuum, high vapor handling capacity, and quiet operation.

Why Choose Edwards RV Direct Drive Pumps?

• Exceptional vapor handling — up to 220 g/hr water vapor (class-leading)
• Very quiet operation — as low as 48 dB(A)
• Dual-mode selector (high vacuum or high throughput)
• Robust and reliable for continuous use
• Wide range of models and configurations (standard and PFPE-prepared for chemical service)

How Edwards RV Direct Drive Pumps Work

The Edwards RV pumps use a direct-drive design where the motor shaft connects directly to the pump rotor. This allows higher operating speeds while maintaining precision vane movement in an oil-sealed chamber. The two-stage design delivers deep ultimate vacuum (down to 2 × 10⁻³ mbar), while the patented gas ballast system protects the pump from condensable vapors.

Key Advantages of Edwards RV Series

• Compact footprint — perfect for benchtop and space-limited labs
• Fast pump-down on small to medium volumes
• Superior vapor tolerance compared to many competitive pumps
• Low noise levels for comfortable laboratory environments
• Easy maintenance with accessible oil drain and filters

Popular Edwards RV Models We Carry

• RV3 – 2.6 CFM (small benchtop applications)
• RV5 – 4.1 CFM (versatile mid-range)
• RV8 – 6.0 CFM (popular general lab use)
• RV12 – 8.4 CFM (higher throughput needs)
• PFPE-Prepared (F-Series) – For aggressive chemical vapors and semiconductor use

Best Applications

• Rotary evaporators and vacuum distillation
• Freeze drying / lyophilization
• Analytical instruments and mass spectrometers
• Scanning Electron Microscopes (SEM)
• Vacuum ovens, Schlenk lines, and glove boxes
• Degassing of oils, epoxies, and resins
• Turbomolecular pump backing
• Refrigeration and HVAC service

Maintenance Tips for Longevity

• Change oil every 3–6 months or 1,000–3,000 operating hours
• Use Edwards Ultragrade vacuum oil (or PFPE for chemical versions)
• Always run gas ballast when handling condensable vapors
• Install inlet and exhaust filters for dirty applications

Whether you need a standard hydrocarbon-prepared pump or a PFPE chemical-resistant model, Chemtech Scientific is your trusted source for genuine Edwards RV direct drive vacuum pumps, spare parts, accessories, and professional repair services.

Academic & Research Discounts Available — Contact us for special pricing.