Product Description
Welch CRVpro4 Direct Drive Pump-NEW #3042-01
230V, 50/60Hz, 1Ph, N. american 230V Plug, UK Plug, and Shuko plugs.
2.8CFM
The CRVpro line is perect for use with vacuum ovens!!
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.
3041-01 is wired for North American 115V, 60Hz operation. Includes North American line cord, vacuum inlet hose barb suitable for gum rubber hose from 5/8" to 3/4" ID, and a charge of oil.
3042-01 is wired for North American 230V, 60Hz operation. Includes 230V North American line cord, UK cord, and skuko cord, and a charge of oil.
3086E-01 comes with an explosion proof motor. Conduit wiring installation required. No cord, plug, or switch provided.
Direct drive pumps are not recommended for filtration, aspiration, drying electrophoresis gels, or other applications requiring sustained operation above 30 torr.
Tech Specs
|
Parameter |
Unit |
CRVpro4 |
CRVpro6 |
CRVpro8 |
|
Free Air Displacement (max. pumping speed) |
||||
|
- @ 50Hz |
m3/h (L/min) |
4 (67) |
6 (100) |
8 (133) |
|
- @ 60Hz |
CFM (L/min) |
2.8 (78) |
4.2 (118) |
5.6 (158) |
|
Pumping speed (Ø-data 133 to 1013 mbar) |
||||
|
- @ 50Hz |
m3/h (L/min) |
3.8 (63) |
5.1 (85) |
7.3 (122) |
|
- @ 60Hz |
CFM (L/min) |
2.7 (77) |
3.7 (105) |
5.1 (143) |
|
Ultimate pressure |
 |
 |
||
|
- without gas ballast partial |
mbar (Torr) |
5×10-4 (4×10-4) |
||
|
- without gas ballast total |
mbar (Torr) |
2×10-3 (1.5×10-3) |
||
|
- with gas ballast total |
mbar (Torr) |
7×10-2 (5×10-2) |
||
|
Max. inlet pressure |
bar |
1 |
||
|
Max. outlet pressure |
bar |
1.35 |
||
|
Connection flanges |
DN |
16 KF |
||
|
Ambient temperature |
°C |
10 - 40 |
||
|
Noise level (50Hz) |
dB (A) |
50 |
||
|
Oil filling |
ml |
840 - 1150 |
800 - 1000  |
|
|
Dimensions (W/D/H) |
mm (inch) |
463/157/230 (18.2/6.1/9.1) |
||
|
Shipping Carton Dimensions (W/D/H) |
mm (inch) |
566/330/330 (22.3/13/13) |
||
|
Weight |
kg (lbs.) |
21 (46.3) |
22 (48.5) |
22.5 (49.6) |
|
Shipping Weight |
kg (lbs.) |
26 (57.3) |
27 (59.5) |
27.5 (60.6) |
ACCESSORIES:
|
Type |
Product name |
Description |
Order no. |
|
Adapter |
Retrofit-Kit (Adapter) to use KF 25 for intake and exhaust |
DN25/16 |
701401 |
|
Inlet Condenser |
Inlet Condenser AKS 16 |
DN 16 KF |
320016 |
|
Condenser SS, water cooling |
SKS 40/16 |
700261 |
|
|
Gauges |
Hand Held Vacuum Gauge - Battery Operated |
Millitorr Range 10-3 to 1 torr |
1526K-10 |
|
Spare sensor for Hand Held Vacuum Gauge |
1526A |
||
|
Service |
Fastening Kit |
For CRVpro 4, 6, 8 |
S3090-99 |
|
Seal Kit |
For CRVpro 4, 6, 8 |
S3080-99 |
|
|
Lip Seal Kit |
For CRVpro 4, 6, 8 |
S3091-99 |
|
|
Service Kit CRVpro 4 |
For CRVpro 4 |
S3077-99 |
|
|
Service Kit CRVpro 6 |
For CRVpro 6 |
S3078-99 |
|
|
Service Kit CRVpro 8 |
For CRVpro 8 |
S3079-99 |
|
CRVpro Model comparison
|
|
CRVPro2 |
CRVpro4 |
CRVpro6 |
CRVpro8 |
CRVpro16 |
CRVpro24 |
CRVpro30 |
| Free Air Displacement @ 60 Hz, cfm (L/min) | 1.8 (50) | 2.8 (78) | 4.2 (118) | 5.6 (158) | 12.8 (363) | 18.3 (519) | 22.1 (627) |
| Free Air Displacement @ 50 Hz, m³/hr (L/min) | 2.5 (41.7) | 4 (67) | 6 (100) | 8 (133) | 18.3 (305) | 26.2(436) | 33.1 (551) |
| Ultimate Pressure, torr (mbar) | 3x10⁻⁴ (2x10⁻⁴) | 5x10⁻⁴ (4x10⁻⁴) | 5x10⁻⁴ (4x10⁻⁴) | 5x10⁻⁴ (4x10⁻⁴) | 3x10⁻⁴ (2x10⁻⁴) | 3x10⁻⁴ (2x10⁻⁴) | 3x10⁻⁴ (2x10⁻⁴) |
| Noise Level, dBA | ≤50 | 50 | 50 | 50 | 55 | 55 | 55 |
| Motor Speed, RPM, @60Hz, @50Hz | 1740 (1450) | 1740 (1450) | 1740 (1450) | 1740 (1450) | 1750 (1450) | 1750 (1450) | 1750 (1450) |
| Motor Power, HP (kW) | 0.27 (0.3) | 0.4 (0.5) | 0.4 (0.5) | 0.4 (0.5) | 1.1 (0.85) | 1.1 (0.85) | 1.1 (0.85) |
| Oil Capacity, mL | 450 | 1150 | 1150 | 1000 | 2400 | 2200 | 2100 |
| Connection Flanges | NW116 | NW 16 | NW 16 | NW 16 | NW25 | NW25 | NW25 |
| Inlet Hose Connection* | 5/8" to 3/4" | 5/8" to 3/4" | 5/8" to 3/4" | 5/8" to 3/4" | 5/8" to 3/4" | 5/8" to 3/4" | 5/8" to 3/4" |
| Weight, lbs (kg) | 33 (15) | 46.3 (21) | 48.5 (22) | 49.6 (22.5) | 81.6 (37) | 84.9 (38.5) | 39.5 (87) |
| Dimensions, LxWxH, in (mm) | 15.1x5.4x9.2 (380x138x235) | 18.2x6.1x9.1 (463x157x230) | 18.2x6.1x9.1 (463x157x230) | 18.2x6.1x9.1 (463x157x230) | 22.4x8.1x11.4 (569x206x289) | 22.4x8.1x11.4 (569x206x289) | 22.4x8.1x11.4 (569x206x289) |
*When ordered with -01 model number suffix
