The Welch CRVpro 6 Rotary Vane Vacuum Pump, 230 V, 50/60 Hz (3062-00) is a two-stage direct-drive rotary vane pump with free air displacement of 6 m³/h (100 L/min) at 50 Hz and 4.2 CFM (118 L/min) at 60 Hz. It achieves a total ultimate pressure of 2 × 10⁻³ mbar without gas ballast and uses DN 16 KF connection flanges.
Key Features
- Two-stage direct-drive rotary vane design, with gas ballast, forced oil lubrication, anti-suckback protection and motor overload protection
- 6 m³/h free air displacement at 50 Hz, equivalent to 100 L/min
- 4.2 CFM free air displacement at 60 Hz, equivalent to 118 L/min
- Deep ultimate vacuum performance, reaching 2 × 10⁻³ mbar total pressure without gas ballast
- Low operating noise, rated at ≤50 dB(A) at 50 Hz
- Large 1150 mL oil capacity, helping dilute chemical vapours that enter the pump oil
- Cool-running airflow design, operating approximately 10°C cooler than standard rotary vane pumps to reduce chemical activity and oil consumption
- Protected internal surfaces, with a PTFE coating inside the oil case and black oxide coating on the outer pumping module surface
- Gas ballast with dry inert gas option, helping manage condensable vapours as well as allowing standard operation with atmospheric air
- Switch-selectable electrical configuration, supporting 220-240 V / 50 Hz, 230 V / 60 Hz and 115 V / 60 Hz operation
- DN 16 KF connection flanges, providing standard vacuum-system connections for compatible equipment
- Suitable for multiple vacuum workflows, including Schlenk lines, freeze dryers, vacuum concentrators and industrial applications
Note: When pumping condensable vapours, the gas ballast should be used to help prevent condensation inside the pump and associated oil degradation. An adapter kit is required when connecting dry inert gas.
Benefits
- Reduces oil degradation by combining a large oil chamber with cooler operating conditions.
- Helps slow internal corrosion through reduced operating temperature and protective surface coatings.
- Protects connected applications from oil backflow during a power failure through the anti-suckback mechanism.
- Supports longer mechanical service life by continuously supplying moving components with fresh lubricating oil.
- Improves handling of condensable vapours through a gas ballast system that can use atmospheric air or dry inert gas.
- Provides flexible installation across compatible electrical supplies through switch-selectable voltage operation.
Why Choose the Welch CRVpro 6 Rotary Vane Vacuum Pump, 230 V, 50/60 Hz (3062-00)?
The Welch CRVpro 6 Rotary Vane Vacuum Pump, 230 V, 50/60 Hz (3062-00) combines deep vacuum performance with low-noise operation, a large oil capacity and protective design features intended to reduce oil degradation and corrosion. Its switch-selectable electrical configuration and DN 16 KF connections make it a versatile choice for compatible laboratory and industrial vacuum systems available through John Morris Group.
