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WELCH CRVpro Series Vacuum Pump

  • Consumes up to 36% less oil than comparable pumps
  • 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.
  • CRVpro Series

  • WELCH

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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 vacuum pumps can be used for applications such as

  • 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.

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Specifications


PARAMETER
UNIT
CRVpro16
CRVpro24
CRVpro30
CRVPro48
CRVpro65
Free Air Displacement
– @ 50 Hz
m3/h (l/min)
18.3 (305)
26.2 (436)
33.1 (551)
55.7 (92842)
74.3 (1238)
– @ 60 Hz
CFM (l/min)
12.8 (363)
18.3 (519)
22.1 (627)
39.4 (1113)
52.5 (1486)
Pumping speed
– @ 50 Hz
m3/h (l/min)
16.8 (280)
24 (400)
29 (483)
48 (800)
65 (1083)
– @ 60 Hz
CFM (l/min)
11.9 (336)
17 (480)
20.5 (580)
33.4 (945)
44.8 (1266)
Ultimate Pressure
– Without gas ballast partial
mbar (Torr)
3x10-4 (2x10-4)
3x10-4 (2x10-4)
3x10-4 (2x10-4)
3x10-4 (2x10-4)
3x10-4 (2x10-4)
– Without gas ballast total
mbar (Torr)
3x10-3 (2x10-3)
3x10-3 (2x10-3)
3x10-3 (2x10-3)
3x10-3 (2x10-3)
3x10-3 (2x10-3)
– With gas ballast total
mbar (Torr)
6x10-3 (5x10-3)
6x10-3 (5x10-3)
6x10-3 (5x10-3)
6x10-3 (5x10-3)
6x10-3 (5x10-3)
Connection flanges
DN
25 KF
25 KF
25 KF
40 KF
40 KF
Ambient temperature
oC
10 - 40
10 - 40
10 - 40
10 - 40
10 - 40
Noise Level (50 Hz)
dB (A)
≤55
≤55
≤55
≤58
≤58
Oil Capacity
ml
2400
2200
2100
4950
4300
Motor speed
rpm 50/60 Hz
1450/1750
1450/1750
1450/1750
1460/1760
1460/1760
Motor power
kW 50/60 Hz
0.7/0.85
0.7/0.85
0.7/0.85
2.2
2.2
Weight
kg
37
38.5
39.5
99
100
Dimensions
L x W x H
mm
569/206/289
569/206/289
569/206/289
796/262/369
*Withoud handle


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Beijing Songyuan Huaxing Technology Development Co., Ltd. was founded in 2000, with its headquarters located in Beijing, China.

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