Welch CRVpro4 Rotary Vane Vacuum Pump 2.8 CFM 115V 60Hz - High Performance Lab Vacuum Pump for Chemistry, Medical & Industrial Applications

The CRVpro series two-stage, direct-drive rotary vane vacuum pumps offer a unique airflow design allowing them to run 10°C cooler than standard rotary vane pumps, leading to reduced chemical activity within the pump and less oil consumption—up to 36% less than comparable pumps. The oil-sealed pumps feature a gas ballast, forced oil lubrication, anti-suck back valve, low noise level, and thermal overload protection. The gas ballast uses either outside air or dry inert gas to reduce condensable vapors from entering the pump oil. Ideal for use in freeze drying, degassing, vacuum ovens, and concentrators. Runs on 115 VAC power Consumes less oil by cool running operation

Large oil capacity minimizes rates of oil breakdown

Chemical-resistant coating in oil case and pump module protects non-moving parts

Up to ≤50 dB (A) noise level for undisturbed work

IP54 enclosure rating

Flow rate of 2.8 CFM (79 l/min)