Laboratory vacuum pump CRVpro 30

rotary vanemulti-stagelubricated

Overview
The CRVpro 30 is a two-stage rotary vane pump from Welch Vacuum offering high pumping speed, long service life and features suitable for demanding laboratory applications. The CRVpro family includes gas ballast, forced oil lubrication, anti-suckback mechanism and thermal overload protection. Cat. No #3302-00 #3307T-01

Key features

• Consumes up to 36% less oil than comparable pumps
• Runs 10°C cooler than comparable pumps to reduce corrosion
• 40% larger oil capacity than comparable pumps to dilute aggressive chemicals
• Chemical-resistant coating in the oil case and pump module to protect non-moving parts
• Direct drive design with gas ballast and anti-suckback

Applications

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

Direct drive pumps are not recommended for filtration, aspiration, drying electrophoresis gels, or other applications requiring sustained operation above 30 torr.

Technical data table (selected values for CRVpro 30)
Free air displacement @ 50 Hz: 33.1 m3/h (551 l/min)
Free air displacement @ 60 Hz: 22.1 CFM (627 l/min)
Pumping speed @ 50 Hz: 33.1 m3/h (551 l/min)
Pumping speed @ 60 Hz: 22.1 CFM (627 l/min)
Ultimate pressure (without gas ballast, partial): 3x10-4 mbar (2x10-4 Torr)
Ultimate pressure (without gas ballast, total): 3x10-3 mbar (2x10-3 Torr)
Ultimate pressure (with gas ballast, total): 6x10-3 mbar (5x10-3 Torr)
Connection flange: 25 KF
Ambient temperature range: 10 - 40 °C
Noise level (50 Hz): ≤55 dB(A)
Oil capacity: 2100 ml
Motor speed: 1450 / 1750 rpm (50/60 Hz)
Motor power: 0.7 / 0.85 kW (50/60 Hz)
Weight: 39.5 kg
Dimensions (L x W x H): 569 x 206 x 289 mm

Specifications

• Model designation: CRVpro 30
• Catalog numbers: #3302-00, #3307T-01
• Type: Two-stage rotary vane pump (direct drive)
• Max pumping speed: 33.1 m3/h (551 l/min) @ 50 Hz
• Pumping speed @ 60 Hz: 22.1 CFM (627 l/min)
• Ultimate pressure (without gas ballast, partial): 3x10-4 mbar (2x10-4 Torr)
• Ultimate pressure (without gas ballast, total): 3x10-3 mbar (2x10-3 Torr)
• Ultimate pressure (with gas ballast): 6x10-3 mbar (5x10-3 Torr)
• Connection flange: 25 KF
• Ambient temperature: 10–40 °C
• Noise level: ≤55 dB(A)
• Oil capacity: 2100 ml
• Motor speed (50/60 Hz): 1450 / 1750 rpm
• Motor power (50/60 Hz): 0.7 / 0.85 kW
• Weight: 39.5 kg
• Dimensions: 569 x 206 x 289 mm
• Features: gas ballast, forced oil lubrication, anti-suckback, thermal overload protection, chemical-resistant oil case coating