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Welch CRVpro Rotary Vane Vacuum Pumps
$3,160.00 – $7,225.00
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.
Suitable applications include freeze drying, degassing, vacuum ovens and concentrators.
Direct drive pumps are not recommended for filtration, aspiration, drying electrophoresis gels, or other applications requiring sustained operation above 30 torr.
Manuals and Documents
CRVpro 4-6-8 Manual
CRVpro 30 Manual
CRVpro Series Datasheet
TECHNICAL DATA
|
PARAMETER |
UNIT |
CRVpro 4 |
CRVpro 6 |
CRVpro 8 |
CRVpro 30 |
|
Free air displacement |
|||||
|
-@5OHz |
m3/h (l/min) |
4 (67) |
6 (10o) |
8 (133) |
33.1 (551) |
|
-@6OHz |
CFM (l/min) |
2.8 (78) |
4.2 (118) |
5.6 (158) |
22.1 (627) |
|
ultimate pressure |
|||||
|
– Without gas ballast partial |
mbar (Torr) |
5×10-4(4×10-4) |
3×10-4(2×10-4) |
||
|
– Without gas ballast total |
mbar (Torr) |
2×10-3(1.5×10-3) |
3×10-3(2×10-3) |
||
|
– With gas ballast total |
mbar (Torr) |
7×10-2(5×10-2) |
6×10-3(5×10-3) |
||
|
Connection flanges |
NW |
16 |
25 |
||
|
Hose connection, inlet* |
ID Tubing |
5/8″- 3/4″ (16-19 mm) |
3/4″ (19 mm) |
||
|
Ambient temperature |
℃ |
10-40 |
|||
|
Noise level (50 Hz) |
dB (A) |
5o |
55 |
||
|
oil capacity |
ml |
1150 |
1000 |
2100 |
|
|
Motor speed |
rpm 50/60Hz |
1450/1740 |
1450/1750 |
||
|
Motor power |
kW 50/60Hz |
0.37/0.4 |
0.7/0.85 |
||
|
Weight |
kg (Ibs.) |
21 (46.3) |
22 (48.5) |
22.5 (49.6) |
39.5 (87) |
|
Dimensions, LxWxH |
mm (inch) |
463/157/230 (18.2/6.1/9.1) |
569/206/289 (22.4/8.1/11.4) |
||
