Laboratory vacuum pump CRVpro 4

rotary vanelubricatedmulti-stage

Overview

• Consumes up to 36% less oil than comparable pumps
• Runs 10°C cooler than comparable pumps, reducing corrosion risk
• 40% larger oil capacity than comparable pumps for better dilution of aggressive chemicals
• Chemical-resistant coating on oil case and pump module to protect non-moving parts
• Direct-drive two-stage rotary vane design with gas ballast, forced oil lubrication, anti-suckback mechanism and thermal overload protection

Applications

• Freeze drying
• Vacuum ovens
• Schlenk lines
• Backing turbo molecular pumps
• Degassing
• Vessel and chamber evacuation

Selected technical data (table)
Free air displacement – @ 50 Hz | m3/h (l/min) | CRVpro 4: 4 (67)
Free air displacement – @ 60 Hz | CFM (l/min) | CRVpro 4: 2.8 (78)
Pumping speed – @ 50 Hz | m3/h (l/min) | CRVpro 4: 3.8 (63)
Pumping speed – @ 60 Hz | CFM (l/min) | CRVpro 4: 2.7 (77)
Ultimate pressure – without gas ballast (partial) | mbar (Torr) | CRVpro 4: 5x10-4 (4x10-4)
Ultimate pressure – without gas ballast (total) | mbar (Torr) | CRVpro 4: 2x10-3 (1.5x10-3)
Connection flanges | DN | CRVpro 4: 16 KF
Ambient temperature | °C | 10 - 40
Noise level (50 Hz) | dB(A) | CRVpro 4: ≤50
Oil capacity | ml | CRVpro 4: 1150
Motor speed (50/60 Hz) | rpm | CRVpro 4: 1450 / 1740
Motor power (50/60 Hz) | kW | CRVpro 4: 0.37 / 0.4
Weight | kg | CRVpro 4: 21
Dimensions L x W x H | mm | CRVpro 4: 463 x 157 x 230*
* = without handle

Notes

• Direct-drive pumps are not recommended for filtration, aspiration, drying electrophoresis gels, or other applications requiring sustained operation above 30 torr
• Designed for long service life and reliable performance as backing pumps for many laboratory processes

Technical specifications

• Model: CRVpro 4
• Type: Two-stage rotary vane pump, direct drive
• Max. pumping speed: 4 m3/h (67 l/min)
• Ultimate pressure (typical): 2x10-3 mbar (1.5x10-3 Torr)
• Free air displacement (50 Hz): 4 m3/h (67 l/min)
• Oil capacity: 1150 ml
• Connection flange: DN 16 KF
• Ambient temperature range: 10–40 °C
• Noise level (50 Hz): ≤50 dB(A)
• Motor speed (50/60 Hz): 1450 / 1740 rpm
• Motor power (50/60 Hz): 0.37 / 0.4 kW
• Weight: 21 kg
• Dimensions (L x W x H): 463 x 157 x 230 mm (without handle)
• Features: gas ballast, forced oil lubrication, anti-suckback, thermal overload protection, chemical-resistant coating on oil case and pump module