The new CRVpro family of direct drive vacuum pumps offers increased reliability and longer service interval vs. other direct drive rotary vane vacuum pumps. The CRVpro family consumes up to 36% less oil than comparable pumps. Three features drive these benefits:
Runs 10°C cooler than comparable pumps. Slows corrosion.
Has a 40% larger oil capacity than comparable pumps. Dilutes aggressive chemicals.
Has a chemical resistant coating in the oil case and pump module. Protects non-moving parts.
The CRVpro family includes all the features you'd expect in a direct drive rotary vane pump: gas ballast, forced oil lubrication, anti-suckback mechanism and thermal overload protection.
CRVpro 48&65 vacuum pumps can be used for freeze drying, vacuum ovens, HVAC/refrigeration service, coaters, backing diffusion pumps, wiped film, metallurgy/vacuum furnaces, lamp manufacture, space simulation, degassing, vessel/chamber evacuation. CRVpro vacuum pumps prepared with perfluoropolyether(PFPE) for oxygen service are available. Pumps with explosion proof motors are available, (click the "back to product list" link at top of page). Contact your local Welch sales representative for details on PFPE prepared pumps and for selecting correct vacuum pump for your application.
Direct drive pumps are not recommended for filtration, aspiration, drying electrophoresis gels, or other applications requiring sustained operation above 30 torr.
Specifications
PARAMETER
UNIT
CRVPro48
CRVpro65
Free Air Displacement
– @ 50 Hz
m3/h (l/min)
55.7 (92842)
74.3 (1238)
– @ 60 Hz
CFM (l/min)
39.4 (1113)
52.5 (1486)
Pumping speed
– @ 50 Hz
m3/h (l/min)
48 (800)
65 (1083)
– @ 60 Hz
CFM (l/min)
33.4 (945)
44.8 (1266)
Ultimate Pressure
– Without gas ballast partial
mbar (Torr)
3x10-4 (2x10-4)
3x10-4 (2x10-4)
– Without gas ballast total
mbar (Torr)
3x10-3 (2x10-3)
3x10-3 (2x10-3)
– With gas ballast total
mbar (Torr)
6x10-3 (5x10-3)
6x10-3 (5x10-3)
Connection flanges
DN
40 KF
40 KF
Ambient temperature
oC
10 - 40
10 - 40
Noise Level (50 Hz)
dB (A)
≤58
≤58
Oil Capacity
ml
4950
4300
Motor speed
rpm 50/60 Hz
1460/1760
1460/1760
Motor power
kW 50/60 Hz
2.2
2.2
Weight
kg
99
100
Dimensions, L x W x H
mm
796/262/369
796/262/369
* Without handle
Downloads
CRVPRO 48-65
Video Gallery
Watch the video to learn more about changing oil in Rotary Vane Vacuum Pump
Watch the video to learn more about Forced Oil Flush on Rotary Vane Pumps
Watch the video to learn more about setting up a Cold Trap and Vacuum Oven with Rotary Vane Vacuum Pump
Watch the video to learn more about Gas Ballast on Rotary Vane Vacuum Pumps
